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12870 lines
383 KiB
12870 lines
383 KiB
'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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const beforeExpr = true;
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const startsExpr = true;
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const isLoop = true;
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const isAssign = true;
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const prefix = true;
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const postfix = true;
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class TokenType {
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constructor(label, conf = {}) {
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this.label = label;
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this.keyword = conf.keyword;
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this.beforeExpr = !!conf.beforeExpr;
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this.startsExpr = !!conf.startsExpr;
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this.rightAssociative = !!conf.rightAssociative;
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this.isLoop = !!conf.isLoop;
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this.isAssign = !!conf.isAssign;
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this.prefix = !!conf.prefix;
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this.postfix = !!conf.postfix;
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this.binop = conf.binop != null ? conf.binop : null;
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this.updateContext = null;
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}
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}
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const keywords = new Map();
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function createKeyword(name, options = {}) {
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options.keyword = name;
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const token = new TokenType(name, options);
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keywords.set(name, token);
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return token;
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}
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function createBinop(name, binop) {
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return new TokenType(name, {
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beforeExpr,
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binop
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});
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}
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const types = {
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num: new TokenType("num", {
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startsExpr
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}),
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bigint: new TokenType("bigint", {
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startsExpr
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}),
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regexp: new TokenType("regexp", {
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startsExpr
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}),
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string: new TokenType("string", {
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startsExpr
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}),
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name: new TokenType("name", {
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startsExpr
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}),
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eof: new TokenType("eof"),
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bracketL: new TokenType("[", {
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beforeExpr,
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startsExpr
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}),
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bracketHashL: new TokenType("#[", {
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beforeExpr,
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startsExpr
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}),
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bracketBarL: new TokenType("[|", {
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beforeExpr,
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startsExpr
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}),
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bracketR: new TokenType("]"),
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bracketBarR: new TokenType("|]"),
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braceL: new TokenType("{", {
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beforeExpr,
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startsExpr
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}),
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braceBarL: new TokenType("{|", {
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beforeExpr,
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startsExpr
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}),
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braceHashL: new TokenType("#{", {
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beforeExpr,
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startsExpr
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}),
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braceR: new TokenType("}"),
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braceBarR: new TokenType("|}"),
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parenL: new TokenType("(", {
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beforeExpr,
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startsExpr
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}),
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parenR: new TokenType(")"),
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comma: new TokenType(",", {
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beforeExpr
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}),
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semi: new TokenType(";", {
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beforeExpr
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}),
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colon: new TokenType(":", {
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beforeExpr
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}),
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doubleColon: new TokenType("::", {
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beforeExpr
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}),
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dot: new TokenType("."),
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question: new TokenType("?", {
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beforeExpr
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}),
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questionDot: new TokenType("?."),
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arrow: new TokenType("=>", {
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beforeExpr
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}),
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template: new TokenType("template"),
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ellipsis: new TokenType("...", {
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beforeExpr
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}),
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backQuote: new TokenType("`", {
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startsExpr
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}),
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dollarBraceL: new TokenType("${", {
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beforeExpr,
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startsExpr
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}),
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at: new TokenType("@"),
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hash: new TokenType("#", {
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startsExpr
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}),
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interpreterDirective: new TokenType("#!..."),
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eq: new TokenType("=", {
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beforeExpr,
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isAssign
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}),
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assign: new TokenType("_=", {
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beforeExpr,
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isAssign
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}),
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incDec: new TokenType("++/--", {
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prefix,
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postfix,
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startsExpr
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}),
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bang: new TokenType("!", {
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beforeExpr,
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prefix,
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startsExpr
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}),
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tilde: new TokenType("~", {
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beforeExpr,
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prefix,
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startsExpr
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}),
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pipeline: createBinop("|>", 0),
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nullishCoalescing: createBinop("??", 1),
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logicalOR: createBinop("||", 1),
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logicalAND: createBinop("&&", 2),
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bitwiseOR: createBinop("|", 3),
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bitwiseXOR: createBinop("^", 4),
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bitwiseAND: createBinop("&", 5),
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equality: createBinop("==/!=/===/!==", 6),
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relational: createBinop("</>/<=/>=", 7),
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bitShift: createBinop("<</>>/>>>", 8),
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plusMin: new TokenType("+/-", {
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beforeExpr,
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binop: 9,
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prefix,
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startsExpr
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}),
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modulo: new TokenType("%", {
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beforeExpr,
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binop: 10,
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startsExpr
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}),
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star: createBinop("*", 10),
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slash: createBinop("/", 10),
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exponent: new TokenType("**", {
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beforeExpr,
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binop: 11,
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rightAssociative: true
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}),
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_break: createKeyword("break"),
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_case: createKeyword("case", {
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beforeExpr
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}),
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_catch: createKeyword("catch"),
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_continue: createKeyword("continue"),
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_debugger: createKeyword("debugger"),
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_default: createKeyword("default", {
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beforeExpr
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}),
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_do: createKeyword("do", {
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isLoop,
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beforeExpr
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}),
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_else: createKeyword("else", {
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beforeExpr
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}),
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_finally: createKeyword("finally"),
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_for: createKeyword("for", {
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isLoop
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}),
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_function: createKeyword("function", {
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startsExpr
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}),
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_if: createKeyword("if"),
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_return: createKeyword("return", {
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beforeExpr
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}),
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_switch: createKeyword("switch"),
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_throw: createKeyword("throw", {
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beforeExpr,
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prefix,
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startsExpr
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}),
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_try: createKeyword("try"),
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_var: createKeyword("var"),
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_const: createKeyword("const"),
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_while: createKeyword("while", {
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isLoop
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}),
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_with: createKeyword("with"),
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_new: createKeyword("new", {
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beforeExpr,
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startsExpr
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}),
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_this: createKeyword("this", {
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startsExpr
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}),
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_super: createKeyword("super", {
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startsExpr
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}),
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_class: createKeyword("class", {
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startsExpr
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}),
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_extends: createKeyword("extends", {
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beforeExpr
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}),
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_export: createKeyword("export"),
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_import: createKeyword("import", {
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startsExpr
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}),
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_null: createKeyword("null", {
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startsExpr
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}),
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_true: createKeyword("true", {
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startsExpr
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}),
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_false: createKeyword("false", {
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startsExpr
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}),
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_in: createKeyword("in", {
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beforeExpr,
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binop: 7
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}),
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_instanceof: createKeyword("instanceof", {
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beforeExpr,
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binop: 7
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}),
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_typeof: createKeyword("typeof", {
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beforeExpr,
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prefix,
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startsExpr
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}),
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_void: createKeyword("void", {
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beforeExpr,
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prefix,
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startsExpr
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}),
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_delete: createKeyword("delete", {
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beforeExpr,
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prefix,
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startsExpr
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})
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};
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const SCOPE_OTHER = 0b00000000,
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SCOPE_PROGRAM = 0b00000001,
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SCOPE_FUNCTION = 0b00000010,
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SCOPE_ARROW = 0b00000100,
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SCOPE_SIMPLE_CATCH = 0b00001000,
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SCOPE_SUPER = 0b00010000,
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SCOPE_DIRECT_SUPER = 0b00100000,
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SCOPE_CLASS = 0b01000000,
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SCOPE_TS_MODULE = 0b10000000,
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SCOPE_VAR = SCOPE_PROGRAM | SCOPE_FUNCTION | SCOPE_TS_MODULE;
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const BIND_KIND_VALUE = 0b00000000001,
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BIND_KIND_TYPE = 0b00000000010,
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BIND_SCOPE_VAR = 0b00000000100,
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BIND_SCOPE_LEXICAL = 0b00000001000,
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BIND_SCOPE_FUNCTION = 0b00000010000,
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BIND_FLAGS_NONE = 0b00001000000,
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BIND_FLAGS_CLASS = 0b00010000000,
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BIND_FLAGS_TS_ENUM = 0b00100000000,
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BIND_FLAGS_TS_CONST_ENUM = 0b01000000000,
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BIND_FLAGS_TS_EXPORT_ONLY = 0b10000000000;
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const BIND_CLASS = BIND_KIND_VALUE | BIND_KIND_TYPE | BIND_SCOPE_LEXICAL | BIND_FLAGS_CLASS,
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BIND_LEXICAL = BIND_KIND_VALUE | 0 | BIND_SCOPE_LEXICAL | 0,
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BIND_VAR = BIND_KIND_VALUE | 0 | BIND_SCOPE_VAR | 0,
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BIND_FUNCTION = BIND_KIND_VALUE | 0 | BIND_SCOPE_FUNCTION | 0,
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BIND_TS_INTERFACE = 0 | BIND_KIND_TYPE | 0 | BIND_FLAGS_CLASS,
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BIND_TS_TYPE = 0 | BIND_KIND_TYPE | 0 | 0,
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BIND_TS_ENUM = BIND_KIND_VALUE | BIND_KIND_TYPE | BIND_SCOPE_LEXICAL | BIND_FLAGS_TS_ENUM,
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BIND_TS_AMBIENT = 0 | 0 | 0 | BIND_FLAGS_TS_EXPORT_ONLY,
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BIND_NONE = 0 | 0 | 0 | BIND_FLAGS_NONE,
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BIND_OUTSIDE = BIND_KIND_VALUE | 0 | 0 | BIND_FLAGS_NONE,
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BIND_TS_CONST_ENUM = BIND_TS_ENUM | BIND_FLAGS_TS_CONST_ENUM,
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BIND_TS_NAMESPACE = 0 | 0 | 0 | BIND_FLAGS_TS_EXPORT_ONLY;
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const CLASS_ELEMENT_FLAG_STATIC = 0b100,
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CLASS_ELEMENT_KIND_GETTER = 0b010,
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CLASS_ELEMENT_KIND_SETTER = 0b001,
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CLASS_ELEMENT_KIND_ACCESSOR = CLASS_ELEMENT_KIND_GETTER | CLASS_ELEMENT_KIND_SETTER;
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const CLASS_ELEMENT_STATIC_GETTER = CLASS_ELEMENT_KIND_GETTER | CLASS_ELEMENT_FLAG_STATIC,
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CLASS_ELEMENT_STATIC_SETTER = CLASS_ELEMENT_KIND_SETTER | CLASS_ELEMENT_FLAG_STATIC,
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CLASS_ELEMENT_INSTANCE_GETTER = CLASS_ELEMENT_KIND_GETTER,
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CLASS_ELEMENT_INSTANCE_SETTER = CLASS_ELEMENT_KIND_SETTER,
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CLASS_ELEMENT_OTHER = 0;
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const lineBreak = /\r\n?|[\n\u2028\u2029]/;
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const lineBreakG = new RegExp(lineBreak.source, "g");
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function isNewLine(code) {
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switch (code) {
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case 10:
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case 13:
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case 8232:
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case 8233:
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return true;
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default:
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return false;
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}
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}
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const skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g;
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function isWhitespace(code) {
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switch (code) {
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case 0x0009:
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case 0x000b:
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case 0x000c:
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case 32:
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case 160:
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case 5760:
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case 0x2000:
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case 0x2001:
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case 0x2002:
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case 0x2003:
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case 0x2004:
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case 0x2005:
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case 0x2006:
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case 0x2007:
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case 0x2008:
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case 0x2009:
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case 0x200a:
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case 0x202f:
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case 0x205f:
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case 0x3000:
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case 0xfeff:
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return true;
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default:
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return false;
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}
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}
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class Position {
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constructor(line, col) {
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this.line = line;
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this.column = col;
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}
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}
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class SourceLocation {
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constructor(start, end) {
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this.start = start;
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this.end = end;
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}
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}
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function getLineInfo(input, offset) {
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let line = 1;
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let lineStart = 0;
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let match;
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lineBreakG.lastIndex = 0;
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while ((match = lineBreakG.exec(input)) && match.index < offset) {
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line++;
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lineStart = lineBreakG.lastIndex;
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}
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return new Position(line, offset - lineStart);
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}
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class BaseParser {
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constructor() {
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this.sawUnambiguousESM = false;
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this.ambiguousScriptDifferentAst = false;
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}
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hasPlugin(name) {
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return this.plugins.has(name);
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}
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getPluginOption(plugin, name) {
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if (this.hasPlugin(plugin)) return this.plugins.get(plugin)[name];
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}
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}
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function last(stack) {
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return stack[stack.length - 1];
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}
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class CommentsParser extends BaseParser {
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addComment(comment) {
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if (this.filename) comment.loc.filename = this.filename;
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this.state.trailingComments.push(comment);
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this.state.leadingComments.push(comment);
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}
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adjustCommentsAfterTrailingComma(node, elements, takeAllComments) {
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if (this.state.leadingComments.length === 0) {
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return;
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}
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let lastElement = null;
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let i = elements.length;
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while (lastElement === null && i > 0) {
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lastElement = elements[--i];
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}
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if (lastElement === null) {
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return;
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}
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for (let j = 0; j < this.state.leadingComments.length; j++) {
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if (this.state.leadingComments[j].end < this.state.commentPreviousNode.end) {
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this.state.leadingComments.splice(j, 1);
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j--;
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}
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}
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const newTrailingComments = [];
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for (let i = 0; i < this.state.leadingComments.length; i++) {
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const leadingComment = this.state.leadingComments[i];
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if (leadingComment.end < node.end) {
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newTrailingComments.push(leadingComment);
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if (!takeAllComments) {
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this.state.leadingComments.splice(i, 1);
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i--;
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}
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} else {
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if (node.trailingComments === undefined) {
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node.trailingComments = [];
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}
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node.trailingComments.push(leadingComment);
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}
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}
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|
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if (takeAllComments) this.state.leadingComments = [];
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|
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if (newTrailingComments.length > 0) {
|
|
lastElement.trailingComments = newTrailingComments;
|
|
} else if (lastElement.trailingComments !== undefined) {
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lastElement.trailingComments = [];
|
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}
|
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}
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|
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processComment(node) {
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if (node.type === "Program" && node.body.length > 0) return;
|
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const stack = this.state.commentStack;
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let firstChild, lastChild, trailingComments, i, j;
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if (this.state.trailingComments.length > 0) {
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if (this.state.trailingComments[0].start >= node.end) {
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trailingComments = this.state.trailingComments;
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this.state.trailingComments = [];
|
|
} else {
|
|
this.state.trailingComments.length = 0;
|
|
}
|
|
} else if (stack.length > 0) {
|
|
const lastInStack = last(stack);
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|
|
|
if (lastInStack.trailingComments && lastInStack.trailingComments[0].start >= node.end) {
|
|
trailingComments = lastInStack.trailingComments;
|
|
delete lastInStack.trailingComments;
|
|
}
|
|
}
|
|
|
|
if (stack.length > 0 && last(stack).start >= node.start) {
|
|
firstChild = stack.pop();
|
|
}
|
|
|
|
while (stack.length > 0 && last(stack).start >= node.start) {
|
|
lastChild = stack.pop();
|
|
}
|
|
|
|
if (!lastChild && firstChild) lastChild = firstChild;
|
|
|
|
if (firstChild) {
|
|
switch (node.type) {
|
|
case "ObjectExpression":
|
|
this.adjustCommentsAfterTrailingComma(node, node.properties);
|
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break;
|
|
|
|
case "ObjectPattern":
|
|
this.adjustCommentsAfterTrailingComma(node, node.properties, true);
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|
break;
|
|
|
|
case "CallExpression":
|
|
this.adjustCommentsAfterTrailingComma(node, node.arguments);
|
|
break;
|
|
|
|
case "ArrayExpression":
|
|
this.adjustCommentsAfterTrailingComma(node, node.elements);
|
|
break;
|
|
|
|
case "ArrayPattern":
|
|
this.adjustCommentsAfterTrailingComma(node, node.elements, true);
|
|
break;
|
|
}
|
|
} else if (this.state.commentPreviousNode && (this.state.commentPreviousNode.type === "ImportSpecifier" && node.type !== "ImportSpecifier" || this.state.commentPreviousNode.type === "ExportSpecifier" && node.type !== "ExportSpecifier")) {
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this.adjustCommentsAfterTrailingComma(node, [this.state.commentPreviousNode]);
|
|
}
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|
|
|
if (lastChild) {
|
|
if (lastChild.leadingComments) {
|
|
if (lastChild !== node && lastChild.leadingComments.length > 0 && last(lastChild.leadingComments).end <= node.start) {
|
|
node.leadingComments = lastChild.leadingComments;
|
|
delete lastChild.leadingComments;
|
|
} else {
|
|
for (i = lastChild.leadingComments.length - 2; i >= 0; --i) {
|
|
if (lastChild.leadingComments[i].end <= node.start) {
|
|
node.leadingComments = lastChild.leadingComments.splice(0, i + 1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else if (this.state.leadingComments.length > 0) {
|
|
if (last(this.state.leadingComments).end <= node.start) {
|
|
if (this.state.commentPreviousNode) {
|
|
for (j = 0; j < this.state.leadingComments.length; j++) {
|
|
if (this.state.leadingComments[j].end < this.state.commentPreviousNode.end) {
|
|
this.state.leadingComments.splice(j, 1);
|
|
j--;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (this.state.leadingComments.length > 0) {
|
|
node.leadingComments = this.state.leadingComments;
|
|
this.state.leadingComments = [];
|
|
}
|
|
} else {
|
|
for (i = 0; i < this.state.leadingComments.length; i++) {
|
|
if (this.state.leadingComments[i].end > node.start) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
const leadingComments = this.state.leadingComments.slice(0, i);
|
|
|
|
if (leadingComments.length) {
|
|
node.leadingComments = leadingComments;
|
|
}
|
|
|
|
trailingComments = this.state.leadingComments.slice(i);
|
|
|
|
if (trailingComments.length === 0) {
|
|
trailingComments = null;
|
|
}
|
|
}
|
|
}
|
|
|
|
this.state.commentPreviousNode = node;
|
|
|
|
if (trailingComments) {
|
|
if (trailingComments.length && trailingComments[0].start >= node.start && last(trailingComments).end <= node.end) {
|
|
node.innerComments = trailingComments;
|
|
} else {
|
|
node.trailingComments = trailingComments;
|
|
}
|
|
}
|
|
|
|
stack.push(node);
|
|
}
|
|
|
|
}
|
|
|
|
const ErrorMessages = Object.freeze({
|
|
ArgumentsDisallowedInInitializer: "'arguments' is not allowed in class field initializer",
|
|
AsyncFunctionInSingleStatementContext: "Async functions can only be declared at the top level or inside a block",
|
|
AwaitBindingIdentifier: "Can not use 'await' as identifier inside an async function",
|
|
AwaitExpressionFormalParameter: "await is not allowed in async function parameters",
|
|
AwaitNotInAsyncFunction: "Can not use keyword 'await' outside an async function",
|
|
BadGetterArity: "getter must not have any formal parameters",
|
|
BadSetterArity: "setter must have exactly one formal parameter",
|
|
BadSetterRestParameter: "setter function argument must not be a rest parameter",
|
|
ConstructorClassField: "Classes may not have a field named 'constructor'",
|
|
ConstructorClassPrivateField: "Classes may not have a private field named '#constructor'",
|
|
ConstructorIsAccessor: "Class constructor may not be an accessor",
|
|
ConstructorIsAsync: "Constructor can't be an async function",
|
|
ConstructorIsGenerator: "Constructor can't be a generator",
|
|
DeclarationMissingInitializer: "%0 require an initialization value",
|
|
DecoratorBeforeExport: "Decorators must be placed *before* the 'export' keyword. You can set the 'decoratorsBeforeExport' option to false to use the 'export @decorator class {}' syntax",
|
|
DecoratorConstructor: "Decorators can't be used with a constructor. Did you mean '@dec class { ... }'?",
|
|
DecoratorExportClass: "Using the export keyword between a decorator and a class is not allowed. Please use `export @dec class` instead.",
|
|
DecoratorSemicolon: "Decorators must not be followed by a semicolon",
|
|
DeletePrivateField: "Deleting a private field is not allowed",
|
|
DestructureNamedImport: "ES2015 named imports do not destructure. Use another statement for destructuring after the import.",
|
|
DuplicateConstructor: "Duplicate constructor in the same class",
|
|
DuplicateDefaultExport: "Only one default export allowed per module.",
|
|
DuplicateExport: "`%0` has already been exported. Exported identifiers must be unique.",
|
|
DuplicateProto: "Redefinition of __proto__ property",
|
|
DuplicateRegExpFlags: "Duplicate regular expression flag",
|
|
ElementAfterRest: "Rest element must be last element",
|
|
EscapedCharNotAnIdentifier: "Invalid Unicode escape",
|
|
ForInOfLoopInitializer: "%0 loop variable declaration may not have an initializer",
|
|
GeneratorInSingleStatementContext: "Generators can only be declared at the top level or inside a block",
|
|
IllegalBreakContinue: "Unsyntactic %0",
|
|
IllegalLanguageModeDirective: "Illegal 'use strict' directive in function with non-simple parameter list",
|
|
IllegalReturn: "'return' outside of function",
|
|
ImportCallArgumentTrailingComma: "Trailing comma is disallowed inside import(...) arguments",
|
|
ImportCallArity: "import() requires exactly %0",
|
|
ImportCallNotNewExpression: "Cannot use new with import(...)",
|
|
ImportCallSpreadArgument: "... is not allowed in import()",
|
|
ImportMetaOutsideModule: `import.meta may appear only with 'sourceType: "module"'`,
|
|
ImportOutsideModule: `'import' and 'export' may appear only with 'sourceType: "module"'`,
|
|
InvalidCodePoint: "Code point out of bounds",
|
|
InvalidDigit: "Expected number in radix %0",
|
|
InvalidEscapeSequence: "Bad character escape sequence",
|
|
InvalidEscapeSequenceTemplate: "Invalid escape sequence in template",
|
|
InvalidEscapedReservedWord: "Escape sequence in keyword %0",
|
|
InvalidIdentifier: "Invalid identifier %0",
|
|
InvalidLhs: "Invalid left-hand side in %0",
|
|
InvalidLhsBinding: "Binding invalid left-hand side in %0",
|
|
InvalidNumber: "Invalid number",
|
|
InvalidOrUnexpectedToken: "Unexpected character '%0'",
|
|
InvalidParenthesizedAssignment: "Invalid parenthesized assignment pattern",
|
|
InvalidPrivateFieldResolution: "Private name #%0 is not defined",
|
|
InvalidPropertyBindingPattern: "Binding member expression",
|
|
InvalidRestAssignmentPattern: "Invalid rest operator's argument",
|
|
LabelRedeclaration: "Label '%0' is already declared",
|
|
LetInLexicalBinding: "'let' is not allowed to be used as a name in 'let' or 'const' declarations.",
|
|
MalformedRegExpFlags: "Invalid regular expression flag",
|
|
MissingClassName: "A class name is required",
|
|
MissingEqInAssignment: "Only '=' operator can be used for specifying default value.",
|
|
MissingUnicodeEscape: "Expecting Unicode escape sequence \\uXXXX",
|
|
MixingCoalesceWithLogical: "Nullish coalescing operator(??) requires parens when mixing with logical operators",
|
|
ModuleAttributeDifferentFromType: "The only accepted module attribute is `type`",
|
|
ModuleAttributeInvalidValue: "Only string literals are allowed as module attribute values",
|
|
ModuleAttributesWithDuplicateKeys: 'Duplicate key "%0" is not allowed in module attributes',
|
|
ModuleExportUndefined: "Export '%0' is not defined",
|
|
MultipleDefaultsInSwitch: "Multiple default clauses",
|
|
NewlineAfterThrow: "Illegal newline after throw",
|
|
NoCatchOrFinally: "Missing catch or finally clause",
|
|
NumberIdentifier: "Identifier directly after number",
|
|
NumericSeparatorInEscapeSequence: "Numeric separators are not allowed inside unicode escape sequences or hex escape sequences",
|
|
ObsoleteAwaitStar: "await* has been removed from the async functions proposal. Use Promise.all() instead.",
|
|
OptionalChainingNoNew: "constructors in/after an Optional Chain are not allowed",
|
|
OptionalChainingNoTemplate: "Tagged Template Literals are not allowed in optionalChain",
|
|
ParamDupe: "Argument name clash",
|
|
PatternHasAccessor: "Object pattern can't contain getter or setter",
|
|
PatternHasMethod: "Object pattern can't contain methods",
|
|
PipelineBodyNoArrow: 'Unexpected arrow "=>" after pipeline body; arrow function in pipeline body must be parenthesized',
|
|
PipelineBodySequenceExpression: "Pipeline body may not be a comma-separated sequence expression",
|
|
PipelineHeadSequenceExpression: "Pipeline head should not be a comma-separated sequence expression",
|
|
PipelineTopicUnused: "Pipeline is in topic style but does not use topic reference",
|
|
PrimaryTopicNotAllowed: "Topic reference was used in a lexical context without topic binding",
|
|
PrimaryTopicRequiresSmartPipeline: "Primary Topic Reference found but pipelineOperator not passed 'smart' for 'proposal' option.",
|
|
PrivateInExpectedIn: "Private names are only allowed in property accesses (`obj.#%0`) or in `in` expressions (`#%0 in obj`)",
|
|
PrivateNameRedeclaration: "Duplicate private name #%0",
|
|
RecordExpressionBarIncorrectEndSyntaxType: "Record expressions ending with '|}' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'",
|
|
RecordExpressionBarIncorrectStartSyntaxType: "Record expressions starting with '{|' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'",
|
|
RecordExpressionHashIncorrectStartSyntaxType: "Record expressions starting with '#{' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'hash'",
|
|
RestTrailingComma: "Unexpected trailing comma after rest element",
|
|
SloppyFunction: "In non-strict mode code, functions can only be declared at top level, inside a block, or as the body of an if statement",
|
|
StaticPrototype: "Classes may not have static property named prototype",
|
|
StrictDelete: "Deleting local variable in strict mode",
|
|
StrictEvalArguments: "Assigning to '%0' in strict mode",
|
|
StrictEvalArgumentsBinding: "Binding '%0' in strict mode",
|
|
StrictFunction: "In strict mode code, functions can only be declared at top level or inside a block",
|
|
StrictOctalLiteral: "Legacy octal literals are not allowed in strict mode",
|
|
StrictWith: "'with' in strict mode",
|
|
SuperNotAllowed: "super() is only valid inside a class constructor of a subclass. Maybe a typo in the method name ('constructor') or not extending another class?",
|
|
SuperPrivateField: "Private fields can't be accessed on super",
|
|
TrailingDecorator: "Decorators must be attached to a class element",
|
|
TupleExpressionBarIncorrectEndSyntaxType: "Tuple expressions ending with '|]' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'",
|
|
TupleExpressionBarIncorrectStartSyntaxType: "Tuple expressions starting with '[|' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'",
|
|
TupleExpressionHashIncorrectStartSyntaxType: "Tuple expressions starting with '#[' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'hash'",
|
|
UnexpectedArgumentPlaceholder: "Unexpected argument placeholder",
|
|
UnexpectedAwaitAfterPipelineBody: 'Unexpected "await" after pipeline body; await must have parentheses in minimal proposal',
|
|
UnexpectedDigitAfterHash: "Unexpected digit after hash token",
|
|
UnexpectedImportExport: "'import' and 'export' may only appear at the top level",
|
|
UnexpectedKeyword: "Unexpected keyword '%0'",
|
|
UnexpectedLeadingDecorator: "Leading decorators must be attached to a class declaration",
|
|
UnexpectedLexicalDeclaration: "Lexical declaration cannot appear in a single-statement context",
|
|
UnexpectedNewTarget: "new.target can only be used in functions",
|
|
UnexpectedNumericSeparator: "A numeric separator is only allowed between two digits",
|
|
UnexpectedPrivateField: "Private names can only be used as the name of a class element (i.e. class C { #p = 42; #m() {} } )\n or a property of member expression (i.e. this.#p).",
|
|
UnexpectedReservedWord: "Unexpected reserved word '%0'",
|
|
UnexpectedSuper: "super is only allowed in object methods and classes",
|
|
UnexpectedToken: "Unexpected token '%'",
|
|
UnexpectedTokenUnaryExponentiation: "Illegal expression. Wrap left hand side or entire exponentiation in parentheses.",
|
|
UnsupportedBind: "Binding should be performed on object property.",
|
|
UnsupportedDecoratorExport: "A decorated export must export a class declaration",
|
|
UnsupportedDefaultExport: "Only expressions, functions or classes are allowed as the `default` export.",
|
|
UnsupportedImport: "import can only be used in import() or import.meta",
|
|
UnsupportedMetaProperty: "The only valid meta property for %0 is %0.%1",
|
|
UnsupportedParameterDecorator: "Decorators cannot be used to decorate parameters",
|
|
UnsupportedPropertyDecorator: "Decorators cannot be used to decorate object literal properties",
|
|
UnsupportedSuper: "super can only be used with function calls (i.e. super()) or in property accesses (i.e. super.prop or super[prop])",
|
|
UnterminatedComment: "Unterminated comment",
|
|
UnterminatedRegExp: "Unterminated regular expression",
|
|
UnterminatedString: "Unterminated string constant",
|
|
UnterminatedTemplate: "Unterminated template",
|
|
VarRedeclaration: "Identifier '%0' has already been declared",
|
|
YieldBindingIdentifier: "Can not use 'yield' as identifier inside a generator",
|
|
YieldInParameter: "yield is not allowed in generator parameters",
|
|
ZeroDigitNumericSeparator: "Numeric separator can not be used after leading 0"
|
|
});
|
|
|
|
class ParserError extends CommentsParser {
|
|
getLocationForPosition(pos) {
|
|
let loc;
|
|
if (pos === this.state.start) loc = this.state.startLoc;else if (pos === this.state.lastTokStart) loc = this.state.lastTokStartLoc;else if (pos === this.state.end) loc = this.state.endLoc;else if (pos === this.state.lastTokEnd) loc = this.state.lastTokEndLoc;else loc = getLineInfo(this.input, pos);
|
|
return loc;
|
|
}
|
|
|
|
raise(pos, errorTemplate, ...params) {
|
|
return this.raiseWithData(pos, undefined, errorTemplate, ...params);
|
|
}
|
|
|
|
raiseWithData(pos, data, errorTemplate, ...params) {
|
|
const loc = this.getLocationForPosition(pos);
|
|
const message = errorTemplate.replace(/%(\d+)/g, (_, i) => params[i]) + ` (${loc.line}:${loc.column})`;
|
|
return this._raise(Object.assign({
|
|
loc,
|
|
pos
|
|
}, data), message);
|
|
}
|
|
|
|
_raise(errorContext, message) {
|
|
const err = new SyntaxError(message);
|
|
Object.assign(err, errorContext);
|
|
|
|
if (this.options.errorRecovery) {
|
|
if (!this.isLookahead) this.state.errors.push(err);
|
|
return err;
|
|
} else {
|
|
throw err;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
function isSimpleProperty(node) {
|
|
return node != null && node.type === "Property" && node.kind === "init" && node.method === false;
|
|
}
|
|
|
|
var estree = (superClass => class extends superClass {
|
|
estreeParseRegExpLiteral({
|
|
pattern,
|
|
flags
|
|
}) {
|
|
let regex = null;
|
|
|
|
try {
|
|
regex = new RegExp(pattern, flags);
|
|
} catch (e) {}
|
|
|
|
const node = this.estreeParseLiteral(regex);
|
|
node.regex = {
|
|
pattern,
|
|
flags
|
|
};
|
|
return node;
|
|
}
|
|
|
|
estreeParseBigIntLiteral(value) {
|
|
const bigInt = typeof BigInt !== "undefined" ? BigInt(value) : null;
|
|
const node = this.estreeParseLiteral(bigInt);
|
|
node.bigint = String(node.value || value);
|
|
return node;
|
|
}
|
|
|
|
estreeParseLiteral(value) {
|
|
return this.parseLiteral(value, "Literal");
|
|
}
|
|
|
|
directiveToStmt(directive) {
|
|
const directiveLiteral = directive.value;
|
|
const stmt = this.startNodeAt(directive.start, directive.loc.start);
|
|
const expression = this.startNodeAt(directiveLiteral.start, directiveLiteral.loc.start);
|
|
expression.value = directiveLiteral.value;
|
|
expression.raw = directiveLiteral.extra.raw;
|
|
stmt.expression = this.finishNodeAt(expression, "Literal", directiveLiteral.end, directiveLiteral.loc.end);
|
|
stmt.directive = directiveLiteral.extra.raw.slice(1, -1);
|
|
return this.finishNodeAt(stmt, "ExpressionStatement", directive.end, directive.loc.end);
|
|
}
|
|
|
|
initFunction(node, isAsync) {
|
|
super.initFunction(node, isAsync);
|
|
node.expression = false;
|
|
}
|
|
|
|
checkDeclaration(node) {
|
|
if (isSimpleProperty(node)) {
|
|
this.checkDeclaration(node.value);
|
|
} else {
|
|
super.checkDeclaration(node);
|
|
}
|
|
}
|
|
|
|
checkGetterSetterParams(method) {
|
|
const prop = method;
|
|
const paramCount = prop.kind === "get" ? 0 : 1;
|
|
const start = prop.start;
|
|
|
|
if (prop.value.params.length !== paramCount) {
|
|
if (method.kind === "get") {
|
|
this.raise(start, ErrorMessages.BadGetterArity);
|
|
} else {
|
|
this.raise(start, ErrorMessages.BadSetterArity);
|
|
}
|
|
} else if (prop.kind === "set" && prop.value.params[0].type === "RestElement") {
|
|
this.raise(start, ErrorMessages.BadSetterRestParameter);
|
|
}
|
|
}
|
|
|
|
checkLVal(expr, bindingType = BIND_NONE, checkClashes, contextDescription, disallowLetBinding) {
|
|
switch (expr.type) {
|
|
case "ObjectPattern":
|
|
expr.properties.forEach(prop => {
|
|
this.checkLVal(prop.type === "Property" ? prop.value : prop, bindingType, checkClashes, "object destructuring pattern", disallowLetBinding);
|
|
});
|
|
break;
|
|
|
|
default:
|
|
super.checkLVal(expr, bindingType, checkClashes, contextDescription, disallowLetBinding);
|
|
}
|
|
}
|
|
|
|
checkDuplicatedProto(prop, protoRef, refExpressionErrors) {
|
|
if (prop.type === "SpreadElement" || prop.computed || prop.method || prop.shorthand) {
|
|
return;
|
|
}
|
|
|
|
const key = prop.key;
|
|
const name = key.type === "Identifier" ? key.name : String(key.value);
|
|
|
|
if (name === "__proto__" && prop.kind === "init") {
|
|
if (protoRef.used) {
|
|
if ((refExpressionErrors == null ? void 0 : refExpressionErrors.doubleProto) === -1) {
|
|
refExpressionErrors.doubleProto = key.start;
|
|
} else {
|
|
this.raise(key.start, ErrorMessages.DuplicateProto);
|
|
}
|
|
}
|
|
|
|
protoRef.used = true;
|
|
}
|
|
}
|
|
|
|
isValidDirective(stmt) {
|
|
var _stmt$expression$extr;
|
|
|
|
return stmt.type === "ExpressionStatement" && stmt.expression.type === "Literal" && typeof stmt.expression.value === "string" && !((_stmt$expression$extr = stmt.expression.extra) == null ? void 0 : _stmt$expression$extr.parenthesized);
|
|
}
|
|
|
|
stmtToDirective(stmt) {
|
|
const directive = super.stmtToDirective(stmt);
|
|
const value = stmt.expression.value;
|
|
directive.value.value = value;
|
|
return directive;
|
|
}
|
|
|
|
parseBlockBody(node, allowDirectives, topLevel, end) {
|
|
super.parseBlockBody(node, allowDirectives, topLevel, end);
|
|
const directiveStatements = node.directives.map(d => this.directiveToStmt(d));
|
|
node.body = directiveStatements.concat(node.body);
|
|
delete node.directives;
|
|
}
|
|
|
|
pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper) {
|
|
this.parseMethod(method, isGenerator, isAsync, isConstructor, allowsDirectSuper, "ClassMethod", true);
|
|
|
|
if (method.typeParameters) {
|
|
method.value.typeParameters = method.typeParameters;
|
|
delete method.typeParameters;
|
|
}
|
|
|
|
classBody.body.push(method);
|
|
}
|
|
|
|
parseExprAtom(refExpressionErrors) {
|
|
switch (this.state.type) {
|
|
case types.num:
|
|
case types.string:
|
|
return this.estreeParseLiteral(this.state.value);
|
|
|
|
case types.regexp:
|
|
return this.estreeParseRegExpLiteral(this.state.value);
|
|
|
|
case types.bigint:
|
|
return this.estreeParseBigIntLiteral(this.state.value);
|
|
|
|
case types._null:
|
|
return this.estreeParseLiteral(null);
|
|
|
|
case types._true:
|
|
return this.estreeParseLiteral(true);
|
|
|
|
case types._false:
|
|
return this.estreeParseLiteral(false);
|
|
|
|
default:
|
|
return super.parseExprAtom(refExpressionErrors);
|
|
}
|
|
}
|
|
|
|
parseLiteral(value, type, startPos, startLoc) {
|
|
const node = super.parseLiteral(value, type, startPos, startLoc);
|
|
node.raw = node.extra.raw;
|
|
delete node.extra;
|
|
return node;
|
|
}
|
|
|
|
parseFunctionBody(node, allowExpression, isMethod = false) {
|
|
super.parseFunctionBody(node, allowExpression, isMethod);
|
|
node.expression = node.body.type !== "BlockStatement";
|
|
}
|
|
|
|
parseMethod(node, isGenerator, isAsync, isConstructor, allowDirectSuper, type, inClassScope = false) {
|
|
let funcNode = this.startNode();
|
|
funcNode.kind = node.kind;
|
|
funcNode = super.parseMethod(funcNode, isGenerator, isAsync, isConstructor, allowDirectSuper, type, inClassScope);
|
|
funcNode.type = "FunctionExpression";
|
|
delete funcNode.kind;
|
|
node.value = funcNode;
|
|
type = type === "ClassMethod" ? "MethodDefinition" : type;
|
|
return this.finishNode(node, type);
|
|
}
|
|
|
|
parseObjectMethod(prop, isGenerator, isAsync, isPattern, containsEsc) {
|
|
const node = super.parseObjectMethod(prop, isGenerator, isAsync, isPattern, containsEsc);
|
|
|
|
if (node) {
|
|
node.type = "Property";
|
|
if (node.kind === "method") node.kind = "init";
|
|
node.shorthand = false;
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
parseObjectProperty(prop, startPos, startLoc, isPattern, refExpressionErrors) {
|
|
const node = super.parseObjectProperty(prop, startPos, startLoc, isPattern, refExpressionErrors);
|
|
|
|
if (node) {
|
|
node.kind = "init";
|
|
node.type = "Property";
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
toAssignable(node) {
|
|
if (isSimpleProperty(node)) {
|
|
this.toAssignable(node.value);
|
|
return node;
|
|
}
|
|
|
|
return super.toAssignable(node);
|
|
}
|
|
|
|
toAssignableObjectExpressionProp(prop, isLast) {
|
|
if (prop.kind === "get" || prop.kind === "set") {
|
|
throw this.raise(prop.key.start, ErrorMessages.PatternHasAccessor);
|
|
} else if (prop.method) {
|
|
throw this.raise(prop.key.start, ErrorMessages.PatternHasMethod);
|
|
} else {
|
|
super.toAssignableObjectExpressionProp(prop, isLast);
|
|
}
|
|
}
|
|
|
|
finishCallExpression(node, optional) {
|
|
super.finishCallExpression(node, optional);
|
|
|
|
if (node.callee.type === "Import") {
|
|
node.type = "ImportExpression";
|
|
node.source = node.arguments[0];
|
|
delete node.arguments;
|
|
delete node.callee;
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
toReferencedListDeep(exprList, isParenthesizedExpr) {
|
|
if (!exprList) {
|
|
return;
|
|
}
|
|
|
|
super.toReferencedListDeep(exprList, isParenthesizedExpr);
|
|
}
|
|
|
|
parseExport(node) {
|
|
super.parseExport(node);
|
|
|
|
switch (node.type) {
|
|
case "ExportAllDeclaration":
|
|
node.exported = null;
|
|
break;
|
|
|
|
case "ExportNamedDeclaration":
|
|
if (node.specifiers.length === 1 && node.specifiers[0].type === "ExportNamespaceSpecifier") {
|
|
node.type = "ExportAllDeclaration";
|
|
node.exported = node.specifiers[0].exported;
|
|
delete node.specifiers;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
});
|
|
|
|
class TokContext {
|
|
constructor(token, isExpr, preserveSpace, override) {
|
|
this.token = token;
|
|
this.isExpr = !!isExpr;
|
|
this.preserveSpace = !!preserveSpace;
|
|
this.override = override;
|
|
}
|
|
|
|
}
|
|
const types$1 = {
|
|
braceStatement: new TokContext("{", false),
|
|
braceExpression: new TokContext("{", true),
|
|
templateQuasi: new TokContext("${", false),
|
|
parenStatement: new TokContext("(", false),
|
|
parenExpression: new TokContext("(", true),
|
|
template: new TokContext("`", true, true, p => p.readTmplToken()),
|
|
functionExpression: new TokContext("function", true),
|
|
functionStatement: new TokContext("function", false)
|
|
};
|
|
|
|
types.parenR.updateContext = types.braceR.updateContext = function () {
|
|
if (this.state.context.length === 1) {
|
|
this.state.exprAllowed = true;
|
|
return;
|
|
}
|
|
|
|
let out = this.state.context.pop();
|
|
|
|
if (out === types$1.braceStatement && this.curContext().token === "function") {
|
|
out = this.state.context.pop();
|
|
}
|
|
|
|
this.state.exprAllowed = !out.isExpr;
|
|
};
|
|
|
|
types.name.updateContext = function (prevType) {
|
|
let allowed = false;
|
|
|
|
if (prevType !== types.dot) {
|
|
if (this.state.value === "of" && !this.state.exprAllowed && prevType !== types._function && prevType !== types._class || this.state.value === "yield" && this.prodParam.hasYield) {
|
|
allowed = true;
|
|
}
|
|
}
|
|
|
|
this.state.exprAllowed = allowed;
|
|
|
|
if (this.state.isIterator) {
|
|
this.state.isIterator = false;
|
|
}
|
|
};
|
|
|
|
types.braceL.updateContext = function (prevType) {
|
|
this.state.context.push(this.braceIsBlock(prevType) ? types$1.braceStatement : types$1.braceExpression);
|
|
this.state.exprAllowed = true;
|
|
};
|
|
|
|
types.dollarBraceL.updateContext = function () {
|
|
this.state.context.push(types$1.templateQuasi);
|
|
this.state.exprAllowed = true;
|
|
};
|
|
|
|
types.parenL.updateContext = function (prevType) {
|
|
const statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while;
|
|
this.state.context.push(statementParens ? types$1.parenStatement : types$1.parenExpression);
|
|
this.state.exprAllowed = true;
|
|
};
|
|
|
|
types.incDec.updateContext = function () {};
|
|
|
|
types._function.updateContext = types._class.updateContext = function (prevType) {
|
|
if (prevType === types.dot || prevType === types.questionDot) ; else if (prevType.beforeExpr && prevType !== types.semi && prevType !== types._else && !(prevType === types._return && lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start))) && !((prevType === types.colon || prevType === types.braceL) && this.curContext() === types$1.b_stat)) {
|
|
this.state.context.push(types$1.functionExpression);
|
|
} else {
|
|
this.state.context.push(types$1.functionStatement);
|
|
}
|
|
|
|
this.state.exprAllowed = false;
|
|
};
|
|
|
|
types.backQuote.updateContext = function () {
|
|
if (this.curContext() === types$1.template) {
|
|
this.state.context.pop();
|
|
} else {
|
|
this.state.context.push(types$1.template);
|
|
}
|
|
|
|
this.state.exprAllowed = false;
|
|
};
|
|
|
|
types.star.updateContext = function () {
|
|
this.state.exprAllowed = false;
|
|
};
|
|
|
|
let nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0560-\u0588\u05d0-\u05ea\u05ef-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u0860-\u086a\u08a0-\u08b4\u08b6-\u08c7\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u09fc\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d04-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e86-\u0e8a\u0e8c-\u0ea3\u0ea5\u0ea7-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1878\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c88\u1c90-\u1cba\u1cbd-\u1cbf\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5\u1cf6\u1cfa\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312f\u3131-\u318e\u31a0-\u31bf\u31f0-\u31ff\u3400-\u4dbf\u4e00-\u9ffc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7bf\ua7c2-\ua7ca\ua7f5-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua8fe\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab69\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc";
|
|
let nonASCIIidentifierChars = "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u07fd\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u08d3-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u09fe\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0afa-\u0aff\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b55-\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c04\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0d00-\u0d03\u0d3b\u0d3c\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d81-\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0ebc\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1abf\u1ac0\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf4\u1cf7-\u1cf9\u1dc0-\u1df9\u1dfb-\u1dff\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua82c\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua8ff-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f";
|
|
const nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
|
|
const nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");
|
|
nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;
|
|
const astralIdentifierStartCodes = [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 14, 29, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 19, 35, 5, 35, 5, 39, 9, 51, 157, 310, 10, 21, 11, 7, 153, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 66, 18, 2, 1, 11, 21, 11, 25, 71, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 28, 43, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 56, 50, 14, 50, 14, 35, 349, 41, 7, 1, 79, 28, 11, 0, 9, 21, 107, 20, 28, 22, 13, 52, 76, 44, 33, 24, 27, 35, 30, 0, 3, 0, 9, 34, 4, 0, 13, 47, 15, 3, 22, 0, 2, 0, 36, 17, 2, 24, 85, 6, 2, 0, 2, 3, 2, 14, 2, 9, 8, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 19, 0, 13, 4, 159, 52, 19, 3, 21, 2, 31, 47, 21, 1, 2, 0, 185, 46, 42, 3, 37, 47, 21, 0, 60, 42, 14, 0, 72, 26, 230, 43, 117, 63, 32, 7, 3, 0, 3, 7, 2, 1, 2, 23, 16, 0, 2, 0, 95, 7, 3, 38, 17, 0, 2, 0, 29, 0, 11, 39, 8, 0, 22, 0, 12, 45, 20, 0, 35, 56, 264, 8, 2, 36, 18, 0, 50, 29, 113, 6, 2, 1, 2, 37, 22, 0, 26, 5, 2, 1, 2, 31, 15, 0, 328, 18, 190, 0, 80, 921, 103, 110, 18, 195, 2749, 1070, 4050, 582, 8634, 568, 8, 30, 114, 29, 19, 47, 17, 3, 32, 20, 6, 18, 689, 63, 129, 74, 6, 0, 67, 12, 65, 1, 2, 0, 29, 6135, 9, 1237, 43, 8, 8952, 286, 50, 2, 18, 3, 9, 395, 2309, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 2357, 44, 11, 6, 17, 0, 370, 43, 1301, 196, 60, 67, 8, 0, 1205, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42717, 35, 4148, 12, 221, 3, 5761, 15, 7472, 3104, 541, 1507, 4938];
|
|
const astralIdentifierCodes = [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 574, 3, 9, 9, 370, 1, 154, 10, 176, 2, 54, 14, 32, 9, 16, 3, 46, 10, 54, 9, 7, 2, 37, 13, 2, 9, 6, 1, 45, 0, 13, 2, 49, 13, 9, 3, 2, 11, 83, 11, 7, 0, 161, 11, 6, 9, 7, 3, 56, 1, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 193, 17, 10, 9, 5, 0, 82, 19, 13, 9, 214, 6, 3, 8, 28, 1, 83, 16, 16, 9, 82, 12, 9, 9, 84, 14, 5, 9, 243, 14, 166, 9, 71, 5, 2, 1, 3, 3, 2, 0, 2, 1, 13, 9, 120, 6, 3, 6, 4, 0, 29, 9, 41, 6, 2, 3, 9, 0, 10, 10, 47, 15, 406, 7, 2, 7, 17, 9, 57, 21, 2, 13, 123, 5, 4, 0, 2, 1, 2, 6, 2, 0, 9, 9, 49, 4, 2, 1, 2, 4, 9, 9, 330, 3, 19306, 9, 135, 4, 60, 6, 26, 9, 1014, 0, 2, 54, 8, 3, 82, 0, 12, 1, 19628, 1, 5319, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 513, 54, 5, 49, 9, 0, 15, 0, 23, 4, 2, 14, 1361, 6, 2, 16, 3, 6, 2, 1, 2, 4, 262, 6, 10, 9, 419, 13, 1495, 6, 110, 6, 6, 9, 4759, 9, 787719, 239];
|
|
|
|
function isInAstralSet(code, set) {
|
|
let pos = 0x10000;
|
|
|
|
for (let i = 0, length = set.length; i < length; i += 2) {
|
|
pos += set[i];
|
|
if (pos > code) return false;
|
|
pos += set[i + 1];
|
|
if (pos >= code) return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function isIdentifierStart(code) {
|
|
if (code < 65) return code === 36;
|
|
if (code <= 90) return true;
|
|
if (code < 97) return code === 95;
|
|
if (code <= 122) return true;
|
|
|
|
if (code <= 0xffff) {
|
|
return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code));
|
|
}
|
|
|
|
return isInAstralSet(code, astralIdentifierStartCodes);
|
|
}
|
|
function isIdentifierChar(code) {
|
|
if (code < 48) return code === 36;
|
|
if (code < 58) return true;
|
|
if (code < 65) return false;
|
|
if (code <= 90) return true;
|
|
if (code < 97) return code === 95;
|
|
if (code <= 122) return true;
|
|
|
|
if (code <= 0xffff) {
|
|
return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code));
|
|
}
|
|
|
|
return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes);
|
|
}
|
|
|
|
const reservedWords = {
|
|
keyword: ["break", "case", "catch", "continue", "debugger", "default", "do", "else", "finally", "for", "function", "if", "return", "switch", "throw", "try", "var", "const", "while", "with", "new", "this", "super", "class", "extends", "export", "import", "null", "true", "false", "in", "instanceof", "typeof", "void", "delete"],
|
|
strict: ["implements", "interface", "let", "package", "private", "protected", "public", "static", "yield"],
|
|
strictBind: ["eval", "arguments"]
|
|
};
|
|
const keywords$1 = new Set(reservedWords.keyword);
|
|
const reservedWordsStrictSet = new Set(reservedWords.strict);
|
|
const reservedWordsStrictBindSet = new Set(reservedWords.strictBind);
|
|
function isReservedWord(word, inModule) {
|
|
return inModule && word === "await" || word === "enum";
|
|
}
|
|
function isStrictReservedWord(word, inModule) {
|
|
return isReservedWord(word, inModule) || reservedWordsStrictSet.has(word);
|
|
}
|
|
function isStrictBindOnlyReservedWord(word) {
|
|
return reservedWordsStrictBindSet.has(word);
|
|
}
|
|
function isStrictBindReservedWord(word, inModule) {
|
|
return isStrictReservedWord(word, inModule) || isStrictBindOnlyReservedWord(word);
|
|
}
|
|
function isKeyword(word) {
|
|
return keywords$1.has(word);
|
|
}
|
|
|
|
const keywordRelationalOperator = /^in(stanceof)?$/;
|
|
function isIteratorStart(current, next) {
|
|
return current === 64 && next === 64;
|
|
}
|
|
|
|
const reservedTypes = new Set(["_", "any", "bool", "boolean", "empty", "extends", "false", "interface", "mixed", "null", "number", "static", "string", "true", "typeof", "void"]);
|
|
const FlowErrors = Object.freeze({
|
|
AmbiguousConditionalArrow: "Ambiguous expression: wrap the arrow functions in parentheses to disambiguate.",
|
|
AmbiguousDeclareModuleKind: "Found both `declare module.exports` and `declare export` in the same module. Modules can only have 1 since they are either an ES module or they are a CommonJS module",
|
|
AssignReservedType: "Cannot overwrite reserved type %0",
|
|
DeclareClassElement: "The `declare` modifier can only appear on class fields.",
|
|
DeclareClassFieldInitializer: "Initializers are not allowed in fields with the `declare` modifier.",
|
|
DuplicateDeclareModuleExports: "Duplicate `declare module.exports` statement",
|
|
EnumBooleanMemberNotInitialized: "Boolean enum members need to be initialized. Use either `%0 = true,` or `%0 = false,` in enum `%1`.",
|
|
EnumDuplicateMemberName: "Enum member names need to be unique, but the name `%0` has already been used before in enum `%1`.",
|
|
EnumInconsistentMemberValues: "Enum `%0` has inconsistent member initializers. Either use no initializers, or consistently use literals (either booleans, numbers, or strings) for all member initializers.",
|
|
EnumInvalidExplicitType: "Enum type `%1` is not valid. Use one of `boolean`, `number`, `string`, or `symbol` in enum `%0`.",
|
|
EnumInvalidExplicitTypeUnknownSupplied: "Supplied enum type is not valid. Use one of `boolean`, `number`, `string`, or `symbol` in enum `%0`.",
|
|
EnumInvalidMemberInitializerPrimaryType: "Enum `%0` has type `%2`, so the initializer of `%1` needs to be a %2 literal.",
|
|
EnumInvalidMemberInitializerSymbolType: "Symbol enum members cannot be initialized. Use `%1,` in enum `%0`.",
|
|
EnumInvalidMemberInitializerUnknownType: "The enum member initializer for `%1` needs to be a literal (either a boolean, number, or string) in enum `%0`.",
|
|
EnumInvalidMemberName: "Enum member names cannot start with lowercase 'a' through 'z'. Instead of using `%0`, consider using `%1`, in enum `%2`.",
|
|
EnumNumberMemberNotInitialized: "Number enum members need to be initialized, e.g. `%1 = 1` in enum `%0`.",
|
|
EnumStringMemberInconsistentlyInitailized: "String enum members need to consistently either all use initializers, or use no initializers, in enum `%0`.",
|
|
ImportTypeShorthandOnlyInPureImport: "The `type` and `typeof` keywords on named imports can only be used on regular `import` statements. It cannot be used with `import type` or `import typeof` statements",
|
|
InexactInsideExact: "Explicit inexact syntax cannot appear inside an explicit exact object type",
|
|
InexactInsideNonObject: "Explicit inexact syntax cannot appear in class or interface definitions",
|
|
InexactVariance: "Explicit inexact syntax cannot have variance",
|
|
InvalidNonTypeImportInDeclareModule: "Imports within a `declare module` body must always be `import type` or `import typeof`",
|
|
MissingTypeParamDefault: "Type parameter declaration needs a default, since a preceding type parameter declaration has a default.",
|
|
NestedDeclareModule: "`declare module` cannot be used inside another `declare module`",
|
|
NestedFlowComment: "Cannot have a flow comment inside another flow comment",
|
|
OptionalBindingPattern: "A binding pattern parameter cannot be optional in an implementation signature.",
|
|
SpreadVariance: "Spread properties cannot have variance",
|
|
TypeBeforeInitializer: "Type annotations must come before default assignments, e.g. instead of `age = 25: number` use `age: number = 25`",
|
|
TypeCastInPattern: "The type cast expression is expected to be wrapped with parenthesis",
|
|
UnexpectedExplicitInexactInObject: "Explicit inexact syntax must appear at the end of an inexact object",
|
|
UnexpectedReservedType: "Unexpected reserved type %0",
|
|
UnexpectedReservedUnderscore: "`_` is only allowed as a type argument to call or new",
|
|
UnexpectedSpaceBetweenModuloChecks: "Spaces between `%` and `checks` are not allowed here.",
|
|
UnexpectedSpreadType: "Spread operator cannot appear in class or interface definitions",
|
|
UnexpectedSubtractionOperand: 'Unexpected token, expected "number" or "bigint"',
|
|
UnexpectedTokenAfterTypeParameter: "Expected an arrow function after this type parameter declaration",
|
|
UnsupportedDeclareExportKind: "`declare export %0` is not supported. Use `%1` instead",
|
|
UnsupportedStatementInDeclareModule: "Only declares and type imports are allowed inside declare module",
|
|
UnterminatedFlowComment: "Unterminated flow-comment"
|
|
});
|
|
|
|
function isEsModuleType(bodyElement) {
|
|
return bodyElement.type === "DeclareExportAllDeclaration" || bodyElement.type === "DeclareExportDeclaration" && (!bodyElement.declaration || bodyElement.declaration.type !== "TypeAlias" && bodyElement.declaration.type !== "InterfaceDeclaration");
|
|
}
|
|
|
|
function hasTypeImportKind(node) {
|
|
return node.importKind === "type" || node.importKind === "typeof";
|
|
}
|
|
|
|
function isMaybeDefaultImport(state) {
|
|
return (state.type === types.name || !!state.type.keyword) && state.value !== "from";
|
|
}
|
|
|
|
const exportSuggestions = {
|
|
const: "declare export var",
|
|
let: "declare export var",
|
|
type: "export type",
|
|
interface: "export interface"
|
|
};
|
|
|
|
function partition(list, test) {
|
|
const list1 = [];
|
|
const list2 = [];
|
|
|
|
for (let i = 0; i < list.length; i++) {
|
|
(test(list[i], i, list) ? list1 : list2).push(list[i]);
|
|
}
|
|
|
|
return [list1, list2];
|
|
}
|
|
|
|
const FLOW_PRAGMA_REGEX = /\*?\s*@((?:no)?flow)\b/;
|
|
var flow = (superClass => class extends superClass {
|
|
constructor(options, input) {
|
|
super(options, input);
|
|
this.flowPragma = undefined;
|
|
}
|
|
|
|
shouldParseTypes() {
|
|
return this.getPluginOption("flow", "all") || this.flowPragma === "flow";
|
|
}
|
|
|
|
shouldParseEnums() {
|
|
return !!this.getPluginOption("flow", "enums");
|
|
}
|
|
|
|
finishToken(type, val) {
|
|
if (type !== types.string && type !== types.semi && type !== types.interpreterDirective) {
|
|
if (this.flowPragma === undefined) {
|
|
this.flowPragma = null;
|
|
}
|
|
}
|
|
|
|
return super.finishToken(type, val);
|
|
}
|
|
|
|
addComment(comment) {
|
|
if (this.flowPragma === undefined) {
|
|
const matches = FLOW_PRAGMA_REGEX.exec(comment.value);
|
|
|
|
if (!matches) ; else if (matches[1] === "flow") {
|
|
this.flowPragma = "flow";
|
|
} else if (matches[1] === "noflow") {
|
|
this.flowPragma = "noflow";
|
|
} else {
|
|
throw new Error("Unexpected flow pragma");
|
|
}
|
|
}
|
|
|
|
return super.addComment(comment);
|
|
}
|
|
|
|
flowParseTypeInitialiser(tok) {
|
|
const oldInType = this.state.inType;
|
|
this.state.inType = true;
|
|
this.expect(tok || types.colon);
|
|
const type = this.flowParseType();
|
|
this.state.inType = oldInType;
|
|
return type;
|
|
}
|
|
|
|
flowParsePredicate() {
|
|
const node = this.startNode();
|
|
const moduloLoc = this.state.startLoc;
|
|
const moduloPos = this.state.start;
|
|
this.expect(types.modulo);
|
|
const checksLoc = this.state.startLoc;
|
|
this.expectContextual("checks");
|
|
|
|
if (moduloLoc.line !== checksLoc.line || moduloLoc.column !== checksLoc.column - 1) {
|
|
this.raise(moduloPos, FlowErrors.UnexpectedSpaceBetweenModuloChecks);
|
|
}
|
|
|
|
if (this.eat(types.parenL)) {
|
|
node.value = this.parseExpression();
|
|
this.expect(types.parenR);
|
|
return this.finishNode(node, "DeclaredPredicate");
|
|
} else {
|
|
return this.finishNode(node, "InferredPredicate");
|
|
}
|
|
}
|
|
|
|
flowParseTypeAndPredicateInitialiser() {
|
|
const oldInType = this.state.inType;
|
|
this.state.inType = true;
|
|
this.expect(types.colon);
|
|
let type = null;
|
|
let predicate = null;
|
|
|
|
if (this.match(types.modulo)) {
|
|
this.state.inType = oldInType;
|
|
predicate = this.flowParsePredicate();
|
|
} else {
|
|
type = this.flowParseType();
|
|
this.state.inType = oldInType;
|
|
|
|
if (this.match(types.modulo)) {
|
|
predicate = this.flowParsePredicate();
|
|
}
|
|
}
|
|
|
|
return [type, predicate];
|
|
}
|
|
|
|
flowParseDeclareClass(node) {
|
|
this.next();
|
|
this.flowParseInterfaceish(node, true);
|
|
return this.finishNode(node, "DeclareClass");
|
|
}
|
|
|
|
flowParseDeclareFunction(node) {
|
|
this.next();
|
|
const id = node.id = this.parseIdentifier();
|
|
const typeNode = this.startNode();
|
|
const typeContainer = this.startNode();
|
|
|
|
if (this.isRelational("<")) {
|
|
typeNode.typeParameters = this.flowParseTypeParameterDeclaration();
|
|
} else {
|
|
typeNode.typeParameters = null;
|
|
}
|
|
|
|
this.expect(types.parenL);
|
|
const tmp = this.flowParseFunctionTypeParams();
|
|
typeNode.params = tmp.params;
|
|
typeNode.rest = tmp.rest;
|
|
this.expect(types.parenR);
|
|
[typeNode.returnType, node.predicate] = this.flowParseTypeAndPredicateInitialiser();
|
|
typeContainer.typeAnnotation = this.finishNode(typeNode, "FunctionTypeAnnotation");
|
|
id.typeAnnotation = this.finishNode(typeContainer, "TypeAnnotation");
|
|
this.resetEndLocation(id);
|
|
this.semicolon();
|
|
return this.finishNode(node, "DeclareFunction");
|
|
}
|
|
|
|
flowParseDeclare(node, insideModule) {
|
|
if (this.match(types._class)) {
|
|
return this.flowParseDeclareClass(node);
|
|
} else if (this.match(types._function)) {
|
|
return this.flowParseDeclareFunction(node);
|
|
} else if (this.match(types._var)) {
|
|
return this.flowParseDeclareVariable(node);
|
|
} else if (this.eatContextual("module")) {
|
|
if (this.match(types.dot)) {
|
|
return this.flowParseDeclareModuleExports(node);
|
|
} else {
|
|
if (insideModule) {
|
|
this.raise(this.state.lastTokStart, FlowErrors.NestedDeclareModule);
|
|
}
|
|
|
|
return this.flowParseDeclareModule(node);
|
|
}
|
|
} else if (this.isContextual("type")) {
|
|
return this.flowParseDeclareTypeAlias(node);
|
|
} else if (this.isContextual("opaque")) {
|
|
return this.flowParseDeclareOpaqueType(node);
|
|
} else if (this.isContextual("interface")) {
|
|
return this.flowParseDeclareInterface(node);
|
|
} else if (this.match(types._export)) {
|
|
return this.flowParseDeclareExportDeclaration(node, insideModule);
|
|
} else {
|
|
throw this.unexpected();
|
|
}
|
|
}
|
|
|
|
flowParseDeclareVariable(node) {
|
|
this.next();
|
|
node.id = this.flowParseTypeAnnotatableIdentifier(true);
|
|
this.scope.declareName(node.id.name, BIND_VAR, node.id.start);
|
|
this.semicolon();
|
|
return this.finishNode(node, "DeclareVariable");
|
|
}
|
|
|
|
flowParseDeclareModule(node) {
|
|
this.scope.enter(SCOPE_OTHER);
|
|
|
|
if (this.match(types.string)) {
|
|
node.id = this.parseExprAtom();
|
|
} else {
|
|
node.id = this.parseIdentifier();
|
|
}
|
|
|
|
const bodyNode = node.body = this.startNode();
|
|
const body = bodyNode.body = [];
|
|
this.expect(types.braceL);
|
|
|
|
while (!this.match(types.braceR)) {
|
|
let bodyNode = this.startNode();
|
|
|
|
if (this.match(types._import)) {
|
|
this.next();
|
|
|
|
if (!this.isContextual("type") && !this.match(types._typeof)) {
|
|
this.raise(this.state.lastTokStart, FlowErrors.InvalidNonTypeImportInDeclareModule);
|
|
}
|
|
|
|
this.parseImport(bodyNode);
|
|
} else {
|
|
this.expectContextual("declare", FlowErrors.UnsupportedStatementInDeclareModule);
|
|
bodyNode = this.flowParseDeclare(bodyNode, true);
|
|
}
|
|
|
|
body.push(bodyNode);
|
|
}
|
|
|
|
this.scope.exit();
|
|
this.expect(types.braceR);
|
|
this.finishNode(bodyNode, "BlockStatement");
|
|
let kind = null;
|
|
let hasModuleExport = false;
|
|
body.forEach(bodyElement => {
|
|
if (isEsModuleType(bodyElement)) {
|
|
if (kind === "CommonJS") {
|
|
this.raise(bodyElement.start, FlowErrors.AmbiguousDeclareModuleKind);
|
|
}
|
|
|
|
kind = "ES";
|
|
} else if (bodyElement.type === "DeclareModuleExports") {
|
|
if (hasModuleExport) {
|
|
this.raise(bodyElement.start, FlowErrors.DuplicateDeclareModuleExports);
|
|
}
|
|
|
|
if (kind === "ES") {
|
|
this.raise(bodyElement.start, FlowErrors.AmbiguousDeclareModuleKind);
|
|
}
|
|
|
|
kind = "CommonJS";
|
|
hasModuleExport = true;
|
|
}
|
|
});
|
|
node.kind = kind || "CommonJS";
|
|
return this.finishNode(node, "DeclareModule");
|
|
}
|
|
|
|
flowParseDeclareExportDeclaration(node, insideModule) {
|
|
this.expect(types._export);
|
|
|
|
if (this.eat(types._default)) {
|
|
if (this.match(types._function) || this.match(types._class)) {
|
|
node.declaration = this.flowParseDeclare(this.startNode());
|
|
} else {
|
|
node.declaration = this.flowParseType();
|
|
this.semicolon();
|
|
}
|
|
|
|
node.default = true;
|
|
return this.finishNode(node, "DeclareExportDeclaration");
|
|
} else {
|
|
if (this.match(types._const) || this.isLet() || (this.isContextual("type") || this.isContextual("interface")) && !insideModule) {
|
|
const label = this.state.value;
|
|
const suggestion = exportSuggestions[label];
|
|
throw this.raise(this.state.start, FlowErrors.UnsupportedDeclareExportKind, label, suggestion);
|
|
}
|
|
|
|
if (this.match(types._var) || this.match(types._function) || this.match(types._class) || this.isContextual("opaque")) {
|
|
node.declaration = this.flowParseDeclare(this.startNode());
|
|
node.default = false;
|
|
return this.finishNode(node, "DeclareExportDeclaration");
|
|
} else if (this.match(types.star) || this.match(types.braceL) || this.isContextual("interface") || this.isContextual("type") || this.isContextual("opaque")) {
|
|
node = this.parseExport(node);
|
|
|
|
if (node.type === "ExportNamedDeclaration") {
|
|
node.type = "ExportDeclaration";
|
|
node.default = false;
|
|
delete node.exportKind;
|
|
}
|
|
|
|
node.type = "Declare" + node.type;
|
|
return node;
|
|
}
|
|
}
|
|
|
|
throw this.unexpected();
|
|
}
|
|
|
|
flowParseDeclareModuleExports(node) {
|
|
this.next();
|
|
this.expectContextual("exports");
|
|
node.typeAnnotation = this.flowParseTypeAnnotation();
|
|
this.semicolon();
|
|
return this.finishNode(node, "DeclareModuleExports");
|
|
}
|
|
|
|
flowParseDeclareTypeAlias(node) {
|
|
this.next();
|
|
this.flowParseTypeAlias(node);
|
|
node.type = "DeclareTypeAlias";
|
|
return node;
|
|
}
|
|
|
|
flowParseDeclareOpaqueType(node) {
|
|
this.next();
|
|
this.flowParseOpaqueType(node, true);
|
|
node.type = "DeclareOpaqueType";
|
|
return node;
|
|
}
|
|
|
|
flowParseDeclareInterface(node) {
|
|
this.next();
|
|
this.flowParseInterfaceish(node);
|
|
return this.finishNode(node, "DeclareInterface");
|
|
}
|
|
|
|
flowParseInterfaceish(node, isClass = false) {
|
|
node.id = this.flowParseRestrictedIdentifier(!isClass, true);
|
|
this.scope.declareName(node.id.name, isClass ? BIND_FUNCTION : BIND_LEXICAL, node.id.start);
|
|
|
|
if (this.isRelational("<")) {
|
|
node.typeParameters = this.flowParseTypeParameterDeclaration();
|
|
} else {
|
|
node.typeParameters = null;
|
|
}
|
|
|
|
node.extends = [];
|
|
node.implements = [];
|
|
node.mixins = [];
|
|
|
|
if (this.eat(types._extends)) {
|
|
do {
|
|
node.extends.push(this.flowParseInterfaceExtends());
|
|
} while (!isClass && this.eat(types.comma));
|
|
}
|
|
|
|
if (this.isContextual("mixins")) {
|
|
this.next();
|
|
|
|
do {
|
|
node.mixins.push(this.flowParseInterfaceExtends());
|
|
} while (this.eat(types.comma));
|
|
}
|
|
|
|
if (this.isContextual("implements")) {
|
|
this.next();
|
|
|
|
do {
|
|
node.implements.push(this.flowParseInterfaceExtends());
|
|
} while (this.eat(types.comma));
|
|
}
|
|
|
|
node.body = this.flowParseObjectType({
|
|
allowStatic: isClass,
|
|
allowExact: false,
|
|
allowSpread: false,
|
|
allowProto: isClass,
|
|
allowInexact: false
|
|
});
|
|
}
|
|
|
|
flowParseInterfaceExtends() {
|
|
const node = this.startNode();
|
|
node.id = this.flowParseQualifiedTypeIdentifier();
|
|
|
|
if (this.isRelational("<")) {
|
|
node.typeParameters = this.flowParseTypeParameterInstantiation();
|
|
} else {
|
|
node.typeParameters = null;
|
|
}
|
|
|
|
return this.finishNode(node, "InterfaceExtends");
|
|
}
|
|
|
|
flowParseInterface(node) {
|
|
this.flowParseInterfaceish(node);
|
|
return this.finishNode(node, "InterfaceDeclaration");
|
|
}
|
|
|
|
checkNotUnderscore(word) {
|
|
if (word === "_") {
|
|
this.raise(this.state.start, FlowErrors.UnexpectedReservedUnderscore);
|
|
}
|
|
}
|
|
|
|
checkReservedType(word, startLoc, declaration) {
|
|
if (!reservedTypes.has(word)) return;
|
|
this.raise(startLoc, declaration ? FlowErrors.AssignReservedType : FlowErrors.UnexpectedReservedType, word);
|
|
}
|
|
|
|
flowParseRestrictedIdentifier(liberal, declaration) {
|
|
this.checkReservedType(this.state.value, this.state.start, declaration);
|
|
return this.parseIdentifier(liberal);
|
|
}
|
|
|
|
flowParseTypeAlias(node) {
|
|
node.id = this.flowParseRestrictedIdentifier(false, true);
|
|
this.scope.declareName(node.id.name, BIND_LEXICAL, node.id.start);
|
|
|
|
if (this.isRelational("<")) {
|
|
node.typeParameters = this.flowParseTypeParameterDeclaration();
|
|
} else {
|
|
node.typeParameters = null;
|
|
}
|
|
|
|
node.right = this.flowParseTypeInitialiser(types.eq);
|
|
this.semicolon();
|
|
return this.finishNode(node, "TypeAlias");
|
|
}
|
|
|
|
flowParseOpaqueType(node, declare) {
|
|
this.expectContextual("type");
|
|
node.id = this.flowParseRestrictedIdentifier(true, true);
|
|
this.scope.declareName(node.id.name, BIND_LEXICAL, node.id.start);
|
|
|
|
if (this.isRelational("<")) {
|
|
node.typeParameters = this.flowParseTypeParameterDeclaration();
|
|
} else {
|
|
node.typeParameters = null;
|
|
}
|
|
|
|
node.supertype = null;
|
|
|
|
if (this.match(types.colon)) {
|
|
node.supertype = this.flowParseTypeInitialiser(types.colon);
|
|
}
|
|
|
|
node.impltype = null;
|
|
|
|
if (!declare) {
|
|
node.impltype = this.flowParseTypeInitialiser(types.eq);
|
|
}
|
|
|
|
this.semicolon();
|
|
return this.finishNode(node, "OpaqueType");
|
|
}
|
|
|
|
flowParseTypeParameter(requireDefault = false) {
|
|
const nodeStart = this.state.start;
|
|
const node = this.startNode();
|
|
const variance = this.flowParseVariance();
|
|
const ident = this.flowParseTypeAnnotatableIdentifier();
|
|
node.name = ident.name;
|
|
node.variance = variance;
|
|
node.bound = ident.typeAnnotation;
|
|
|
|
if (this.match(types.eq)) {
|
|
this.eat(types.eq);
|
|
node.default = this.flowParseType();
|
|
} else {
|
|
if (requireDefault) {
|
|
this.raise(nodeStart, FlowErrors.MissingTypeParamDefault);
|
|
}
|
|
}
|
|
|
|
return this.finishNode(node, "TypeParameter");
|
|
}
|
|
|
|
flowParseTypeParameterDeclaration() {
|
|
const oldInType = this.state.inType;
|
|
const node = this.startNode();
|
|
node.params = [];
|
|
this.state.inType = true;
|
|
|
|
if (this.isRelational("<") || this.match(types.jsxTagStart)) {
|
|
this.next();
|
|
} else {
|
|
this.unexpected();
|
|
}
|
|
|
|
let defaultRequired = false;
|
|
|
|
do {
|
|
const typeParameter = this.flowParseTypeParameter(defaultRequired);
|
|
node.params.push(typeParameter);
|
|
|
|
if (typeParameter.default) {
|
|
defaultRequired = true;
|
|
}
|
|
|
|
if (!this.isRelational(">")) {
|
|
this.expect(types.comma);
|
|
}
|
|
} while (!this.isRelational(">"));
|
|
|
|
this.expectRelational(">");
|
|
this.state.inType = oldInType;
|
|
return this.finishNode(node, "TypeParameterDeclaration");
|
|
}
|
|
|
|
flowParseTypeParameterInstantiation() {
|
|
const node = this.startNode();
|
|
const oldInType = this.state.inType;
|
|
node.params = [];
|
|
this.state.inType = true;
|
|
this.expectRelational("<");
|
|
const oldNoAnonFunctionType = this.state.noAnonFunctionType;
|
|
this.state.noAnonFunctionType = false;
|
|
|
|
while (!this.isRelational(">")) {
|
|
node.params.push(this.flowParseType());
|
|
|
|
if (!this.isRelational(">")) {
|
|
this.expect(types.comma);
|
|
}
|
|
}
|
|
|
|
this.state.noAnonFunctionType = oldNoAnonFunctionType;
|
|
this.expectRelational(">");
|
|
this.state.inType = oldInType;
|
|
return this.finishNode(node, "TypeParameterInstantiation");
|
|
}
|
|
|
|
flowParseTypeParameterInstantiationCallOrNew() {
|
|
const node = this.startNode();
|
|
const oldInType = this.state.inType;
|
|
node.params = [];
|
|
this.state.inType = true;
|
|
this.expectRelational("<");
|
|
|
|
while (!this.isRelational(">")) {
|
|
node.params.push(this.flowParseTypeOrImplicitInstantiation());
|
|
|
|
if (!this.isRelational(">")) {
|
|
this.expect(types.comma);
|
|
}
|
|
}
|
|
|
|
this.expectRelational(">");
|
|
this.state.inType = oldInType;
|
|
return this.finishNode(node, "TypeParameterInstantiation");
|
|
}
|
|
|
|
flowParseInterfaceType() {
|
|
const node = this.startNode();
|
|
this.expectContextual("interface");
|
|
node.extends = [];
|
|
|
|
if (this.eat(types._extends)) {
|
|
do {
|
|
node.extends.push(this.flowParseInterfaceExtends());
|
|
} while (this.eat(types.comma));
|
|
}
|
|
|
|
node.body = this.flowParseObjectType({
|
|
allowStatic: false,
|
|
allowExact: false,
|
|
allowSpread: false,
|
|
allowProto: false,
|
|
allowInexact: false
|
|
});
|
|
return this.finishNode(node, "InterfaceTypeAnnotation");
|
|
}
|
|
|
|
flowParseObjectPropertyKey() {
|
|
return this.match(types.num) || this.match(types.string) ? this.parseExprAtom() : this.parseIdentifier(true);
|
|
}
|
|
|
|
flowParseObjectTypeIndexer(node, isStatic, variance) {
|
|
node.static = isStatic;
|
|
|
|
if (this.lookahead().type === types.colon) {
|
|
node.id = this.flowParseObjectPropertyKey();
|
|
node.key = this.flowParseTypeInitialiser();
|
|
} else {
|
|
node.id = null;
|
|
node.key = this.flowParseType();
|
|
}
|
|
|
|
this.expect(types.bracketR);
|
|
node.value = this.flowParseTypeInitialiser();
|
|
node.variance = variance;
|
|
return this.finishNode(node, "ObjectTypeIndexer");
|
|
}
|
|
|
|
flowParseObjectTypeInternalSlot(node, isStatic) {
|
|
node.static = isStatic;
|
|
node.id = this.flowParseObjectPropertyKey();
|
|
this.expect(types.bracketR);
|
|
this.expect(types.bracketR);
|
|
|
|
if (this.isRelational("<") || this.match(types.parenL)) {
|
|
node.method = true;
|
|
node.optional = false;
|
|
node.value = this.flowParseObjectTypeMethodish(this.startNodeAt(node.start, node.loc.start));
|
|
} else {
|
|
node.method = false;
|
|
|
|
if (this.eat(types.question)) {
|
|
node.optional = true;
|
|
}
|
|
|
|
node.value = this.flowParseTypeInitialiser();
|
|
}
|
|
|
|
return this.finishNode(node, "ObjectTypeInternalSlot");
|
|
}
|
|
|
|
flowParseObjectTypeMethodish(node) {
|
|
node.params = [];
|
|
node.rest = null;
|
|
node.typeParameters = null;
|
|
|
|
if (this.isRelational("<")) {
|
|
node.typeParameters = this.flowParseTypeParameterDeclaration();
|
|
}
|
|
|
|
this.expect(types.parenL);
|
|
|
|
while (!this.match(types.parenR) && !this.match(types.ellipsis)) {
|
|
node.params.push(this.flowParseFunctionTypeParam());
|
|
|
|
if (!this.match(types.parenR)) {
|
|
this.expect(types.comma);
|
|
}
|
|
}
|
|
|
|
if (this.eat(types.ellipsis)) {
|
|
node.rest = this.flowParseFunctionTypeParam();
|
|
}
|
|
|
|
this.expect(types.parenR);
|
|
node.returnType = this.flowParseTypeInitialiser();
|
|
return this.finishNode(node, "FunctionTypeAnnotation");
|
|
}
|
|
|
|
flowParseObjectTypeCallProperty(node, isStatic) {
|
|
const valueNode = this.startNode();
|
|
node.static = isStatic;
|
|
node.value = this.flowParseObjectTypeMethodish(valueNode);
|
|
return this.finishNode(node, "ObjectTypeCallProperty");
|
|
}
|
|
|
|
flowParseObjectType({
|
|
allowStatic,
|
|
allowExact,
|
|
allowSpread,
|
|
allowProto,
|
|
allowInexact
|
|
}) {
|
|
const oldInType = this.state.inType;
|
|
this.state.inType = true;
|
|
const nodeStart = this.startNode();
|
|
nodeStart.callProperties = [];
|
|
nodeStart.properties = [];
|
|
nodeStart.indexers = [];
|
|
nodeStart.internalSlots = [];
|
|
let endDelim;
|
|
let exact;
|
|
let inexact = false;
|
|
|
|
if (allowExact && this.match(types.braceBarL)) {
|
|
this.expect(types.braceBarL);
|
|
endDelim = types.braceBarR;
|
|
exact = true;
|
|
} else {
|
|
this.expect(types.braceL);
|
|
endDelim = types.braceR;
|
|
exact = false;
|
|
}
|
|
|
|
nodeStart.exact = exact;
|
|
|
|
while (!this.match(endDelim)) {
|
|
let isStatic = false;
|
|
let protoStart = null;
|
|
let inexactStart = null;
|
|
const node = this.startNode();
|
|
|
|
if (allowProto && this.isContextual("proto")) {
|
|
const lookahead = this.lookahead();
|
|
|
|
if (lookahead.type !== types.colon && lookahead.type !== types.question) {
|
|
this.next();
|
|
protoStart = this.state.start;
|
|
allowStatic = false;
|
|
}
|
|
}
|
|
|
|
if (allowStatic && this.isContextual("static")) {
|
|
const lookahead = this.lookahead();
|
|
|
|
if (lookahead.type !== types.colon && lookahead.type !== types.question) {
|
|
this.next();
|
|
isStatic = true;
|
|
}
|
|
}
|
|
|
|
const variance = this.flowParseVariance();
|
|
|
|
if (this.eat(types.bracketL)) {
|
|
if (protoStart != null) {
|
|
this.unexpected(protoStart);
|
|
}
|
|
|
|
if (this.eat(types.bracketL)) {
|
|
if (variance) {
|
|
this.unexpected(variance.start);
|
|
}
|
|
|
|
nodeStart.internalSlots.push(this.flowParseObjectTypeInternalSlot(node, isStatic));
|
|
} else {
|
|
nodeStart.indexers.push(this.flowParseObjectTypeIndexer(node, isStatic, variance));
|
|
}
|
|
} else if (this.match(types.parenL) || this.isRelational("<")) {
|
|
if (protoStart != null) {
|
|
this.unexpected(protoStart);
|
|
}
|
|
|
|
if (variance) {
|
|
this.unexpected(variance.start);
|
|
}
|
|
|
|
nodeStart.callProperties.push(this.flowParseObjectTypeCallProperty(node, isStatic));
|
|
} else {
|
|
let kind = "init";
|
|
|
|
if (this.isContextual("get") || this.isContextual("set")) {
|
|
const lookahead = this.lookahead();
|
|
|
|
if (lookahead.type === types.name || lookahead.type === types.string || lookahead.type === types.num) {
|
|
kind = this.state.value;
|
|
this.next();
|
|
}
|
|
}
|
|
|
|
const propOrInexact = this.flowParseObjectTypeProperty(node, isStatic, protoStart, variance, kind, allowSpread, allowInexact != null ? allowInexact : !exact);
|
|
|
|
if (propOrInexact === null) {
|
|
inexact = true;
|
|
inexactStart = this.state.lastTokStart;
|
|
} else {
|
|
nodeStart.properties.push(propOrInexact);
|
|
}
|
|
}
|
|
|
|
this.flowObjectTypeSemicolon();
|
|
|
|
if (inexactStart && !this.match(types.braceR) && !this.match(types.braceBarR)) {
|
|
this.raise(inexactStart, FlowErrors.UnexpectedExplicitInexactInObject);
|
|
}
|
|
}
|
|
|
|
this.expect(endDelim);
|
|
|
|
if (allowSpread) {
|
|
nodeStart.inexact = inexact;
|
|
}
|
|
|
|
const out = this.finishNode(nodeStart, "ObjectTypeAnnotation");
|
|
this.state.inType = oldInType;
|
|
return out;
|
|
}
|
|
|
|
flowParseObjectTypeProperty(node, isStatic, protoStart, variance, kind, allowSpread, allowInexact) {
|
|
if (this.eat(types.ellipsis)) {
|
|
const isInexactToken = this.match(types.comma) || this.match(types.semi) || this.match(types.braceR) || this.match(types.braceBarR);
|
|
|
|
if (isInexactToken) {
|
|
if (!allowSpread) {
|
|
this.raise(this.state.lastTokStart, FlowErrors.InexactInsideNonObject);
|
|
} else if (!allowInexact) {
|
|
this.raise(this.state.lastTokStart, FlowErrors.InexactInsideExact);
|
|
}
|
|
|
|
if (variance) {
|
|
this.raise(variance.start, FlowErrors.InexactVariance);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
if (!allowSpread) {
|
|
this.raise(this.state.lastTokStart, FlowErrors.UnexpectedSpreadType);
|
|
}
|
|
|
|
if (protoStart != null) {
|
|
this.unexpected(protoStart);
|
|
}
|
|
|
|
if (variance) {
|
|
this.raise(variance.start, FlowErrors.SpreadVariance);
|
|
}
|
|
|
|
node.argument = this.flowParseType();
|
|
return this.finishNode(node, "ObjectTypeSpreadProperty");
|
|
} else {
|
|
node.key = this.flowParseObjectPropertyKey();
|
|
node.static = isStatic;
|
|
node.proto = protoStart != null;
|
|
node.kind = kind;
|
|
let optional = false;
|
|
|
|
if (this.isRelational("<") || this.match(types.parenL)) {
|
|
node.method = true;
|
|
|
|
if (protoStart != null) {
|
|
this.unexpected(protoStart);
|
|
}
|
|
|
|
if (variance) {
|
|
this.unexpected(variance.start);
|
|
}
|
|
|
|
node.value = this.flowParseObjectTypeMethodish(this.startNodeAt(node.start, node.loc.start));
|
|
|
|
if (kind === "get" || kind === "set") {
|
|
this.flowCheckGetterSetterParams(node);
|
|
}
|
|
} else {
|
|
if (kind !== "init") this.unexpected();
|
|
node.method = false;
|
|
|
|
if (this.eat(types.question)) {
|
|
optional = true;
|
|
}
|
|
|
|
node.value = this.flowParseTypeInitialiser();
|
|
node.variance = variance;
|
|
}
|
|
|
|
node.optional = optional;
|
|
return this.finishNode(node, "ObjectTypeProperty");
|
|
}
|
|
}
|
|
|
|
flowCheckGetterSetterParams(property) {
|
|
const paramCount = property.kind === "get" ? 0 : 1;
|
|
const start = property.start;
|
|
const length = property.value.params.length + (property.value.rest ? 1 : 0);
|
|
|
|
if (length !== paramCount) {
|
|
if (property.kind === "get") {
|
|
this.raise(start, ErrorMessages.BadGetterArity);
|
|
} else {
|
|
this.raise(start, ErrorMessages.BadSetterArity);
|
|
}
|
|
}
|
|
|
|
if (property.kind === "set" && property.value.rest) {
|
|
this.raise(start, ErrorMessages.BadSetterRestParameter);
|
|
}
|
|
}
|
|
|
|
flowObjectTypeSemicolon() {
|
|
if (!this.eat(types.semi) && !this.eat(types.comma) && !this.match(types.braceR) && !this.match(types.braceBarR)) {
|
|
this.unexpected();
|
|
}
|
|
}
|
|
|
|
flowParseQualifiedTypeIdentifier(startPos, startLoc, id) {
|
|
startPos = startPos || this.state.start;
|
|
startLoc = startLoc || this.state.startLoc;
|
|
let node = id || this.flowParseRestrictedIdentifier(true);
|
|
|
|
while (this.eat(types.dot)) {
|
|
const node2 = this.startNodeAt(startPos, startLoc);
|
|
node2.qualification = node;
|
|
node2.id = this.flowParseRestrictedIdentifier(true);
|
|
node = this.finishNode(node2, "QualifiedTypeIdentifier");
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
flowParseGenericType(startPos, startLoc, id) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.typeParameters = null;
|
|
node.id = this.flowParseQualifiedTypeIdentifier(startPos, startLoc, id);
|
|
|
|
if (this.isRelational("<")) {
|
|
node.typeParameters = this.flowParseTypeParameterInstantiation();
|
|
}
|
|
|
|
return this.finishNode(node, "GenericTypeAnnotation");
|
|
}
|
|
|
|
flowParseTypeofType() {
|
|
const node = this.startNode();
|
|
this.expect(types._typeof);
|
|
node.argument = this.flowParsePrimaryType();
|
|
return this.finishNode(node, "TypeofTypeAnnotation");
|
|
}
|
|
|
|
flowParseTupleType() {
|
|
const node = this.startNode();
|
|
node.types = [];
|
|
this.expect(types.bracketL);
|
|
|
|
while (this.state.pos < this.length && !this.match(types.bracketR)) {
|
|
node.types.push(this.flowParseType());
|
|
if (this.match(types.bracketR)) break;
|
|
this.expect(types.comma);
|
|
}
|
|
|
|
this.expect(types.bracketR);
|
|
return this.finishNode(node, "TupleTypeAnnotation");
|
|
}
|
|
|
|
flowParseFunctionTypeParam() {
|
|
let name = null;
|
|
let optional = false;
|
|
let typeAnnotation = null;
|
|
const node = this.startNode();
|
|
const lh = this.lookahead();
|
|
|
|
if (lh.type === types.colon || lh.type === types.question) {
|
|
name = this.parseIdentifier();
|
|
|
|
if (this.eat(types.question)) {
|
|
optional = true;
|
|
}
|
|
|
|
typeAnnotation = this.flowParseTypeInitialiser();
|
|
} else {
|
|
typeAnnotation = this.flowParseType();
|
|
}
|
|
|
|
node.name = name;
|
|
node.optional = optional;
|
|
node.typeAnnotation = typeAnnotation;
|
|
return this.finishNode(node, "FunctionTypeParam");
|
|
}
|
|
|
|
reinterpretTypeAsFunctionTypeParam(type) {
|
|
const node = this.startNodeAt(type.start, type.loc.start);
|
|
node.name = null;
|
|
node.optional = false;
|
|
node.typeAnnotation = type;
|
|
return this.finishNode(node, "FunctionTypeParam");
|
|
}
|
|
|
|
flowParseFunctionTypeParams(params = []) {
|
|
let rest = null;
|
|
|
|
while (!this.match(types.parenR) && !this.match(types.ellipsis)) {
|
|
params.push(this.flowParseFunctionTypeParam());
|
|
|
|
if (!this.match(types.parenR)) {
|
|
this.expect(types.comma);
|
|
}
|
|
}
|
|
|
|
if (this.eat(types.ellipsis)) {
|
|
rest = this.flowParseFunctionTypeParam();
|
|
}
|
|
|
|
return {
|
|
params,
|
|
rest
|
|
};
|
|
}
|
|
|
|
flowIdentToTypeAnnotation(startPos, startLoc, node, id) {
|
|
switch (id.name) {
|
|
case "any":
|
|
return this.finishNode(node, "AnyTypeAnnotation");
|
|
|
|
case "bool":
|
|
case "boolean":
|
|
return this.finishNode(node, "BooleanTypeAnnotation");
|
|
|
|
case "mixed":
|
|
return this.finishNode(node, "MixedTypeAnnotation");
|
|
|
|
case "empty":
|
|
return this.finishNode(node, "EmptyTypeAnnotation");
|
|
|
|
case "number":
|
|
return this.finishNode(node, "NumberTypeAnnotation");
|
|
|
|
case "string":
|
|
return this.finishNode(node, "StringTypeAnnotation");
|
|
|
|
case "symbol":
|
|
return this.finishNode(node, "SymbolTypeAnnotation");
|
|
|
|
default:
|
|
this.checkNotUnderscore(id.name);
|
|
return this.flowParseGenericType(startPos, startLoc, id);
|
|
}
|
|
}
|
|
|
|
flowParsePrimaryType() {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
const node = this.startNode();
|
|
let tmp;
|
|
let type;
|
|
let isGroupedType = false;
|
|
const oldNoAnonFunctionType = this.state.noAnonFunctionType;
|
|
|
|
switch (this.state.type) {
|
|
case types.name:
|
|
if (this.isContextual("interface")) {
|
|
return this.flowParseInterfaceType();
|
|
}
|
|
|
|
return this.flowIdentToTypeAnnotation(startPos, startLoc, node, this.parseIdentifier());
|
|
|
|
case types.braceL:
|
|
return this.flowParseObjectType({
|
|
allowStatic: false,
|
|
allowExact: false,
|
|
allowSpread: true,
|
|
allowProto: false,
|
|
allowInexact: true
|
|
});
|
|
|
|
case types.braceBarL:
|
|
return this.flowParseObjectType({
|
|
allowStatic: false,
|
|
allowExact: true,
|
|
allowSpread: true,
|
|
allowProto: false,
|
|
allowInexact: false
|
|
});
|
|
|
|
case types.bracketL:
|
|
this.state.noAnonFunctionType = false;
|
|
type = this.flowParseTupleType();
|
|
this.state.noAnonFunctionType = oldNoAnonFunctionType;
|
|
return type;
|
|
|
|
case types.relational:
|
|
if (this.state.value === "<") {
|
|
node.typeParameters = this.flowParseTypeParameterDeclaration();
|
|
this.expect(types.parenL);
|
|
tmp = this.flowParseFunctionTypeParams();
|
|
node.params = tmp.params;
|
|
node.rest = tmp.rest;
|
|
this.expect(types.parenR);
|
|
this.expect(types.arrow);
|
|
node.returnType = this.flowParseType();
|
|
return this.finishNode(node, "FunctionTypeAnnotation");
|
|
}
|
|
|
|
break;
|
|
|
|
case types.parenL:
|
|
this.next();
|
|
|
|
if (!this.match(types.parenR) && !this.match(types.ellipsis)) {
|
|
if (this.match(types.name)) {
|
|
const token = this.lookahead().type;
|
|
isGroupedType = token !== types.question && token !== types.colon;
|
|
} else {
|
|
isGroupedType = true;
|
|
}
|
|
}
|
|
|
|
if (isGroupedType) {
|
|
this.state.noAnonFunctionType = false;
|
|
type = this.flowParseType();
|
|
this.state.noAnonFunctionType = oldNoAnonFunctionType;
|
|
|
|
if (this.state.noAnonFunctionType || !(this.match(types.comma) || this.match(types.parenR) && this.lookahead().type === types.arrow)) {
|
|
this.expect(types.parenR);
|
|
return type;
|
|
} else {
|
|
this.eat(types.comma);
|
|
}
|
|
}
|
|
|
|
if (type) {
|
|
tmp = this.flowParseFunctionTypeParams([this.reinterpretTypeAsFunctionTypeParam(type)]);
|
|
} else {
|
|
tmp = this.flowParseFunctionTypeParams();
|
|
}
|
|
|
|
node.params = tmp.params;
|
|
node.rest = tmp.rest;
|
|
this.expect(types.parenR);
|
|
this.expect(types.arrow);
|
|
node.returnType = this.flowParseType();
|
|
node.typeParameters = null;
|
|
return this.finishNode(node, "FunctionTypeAnnotation");
|
|
|
|
case types.string:
|
|
return this.parseLiteral(this.state.value, "StringLiteralTypeAnnotation");
|
|
|
|
case types._true:
|
|
case types._false:
|
|
node.value = this.match(types._true);
|
|
this.next();
|
|
return this.finishNode(node, "BooleanLiteralTypeAnnotation");
|
|
|
|
case types.plusMin:
|
|
if (this.state.value === "-") {
|
|
this.next();
|
|
|
|
if (this.match(types.num)) {
|
|
return this.parseLiteral(-this.state.value, "NumberLiteralTypeAnnotation", node.start, node.loc.start);
|
|
}
|
|
|
|
if (this.match(types.bigint)) {
|
|
return this.parseLiteral(-this.state.value, "BigIntLiteralTypeAnnotation", node.start, node.loc.start);
|
|
}
|
|
|
|
throw this.raise(this.state.start, FlowErrors.UnexpectedSubtractionOperand);
|
|
}
|
|
|
|
throw this.unexpected();
|
|
|
|
case types.num:
|
|
return this.parseLiteral(this.state.value, "NumberLiteralTypeAnnotation");
|
|
|
|
case types.bigint:
|
|
return this.parseLiteral(this.state.value, "BigIntLiteralTypeAnnotation");
|
|
|
|
case types._void:
|
|
this.next();
|
|
return this.finishNode(node, "VoidTypeAnnotation");
|
|
|
|
case types._null:
|
|
this.next();
|
|
return this.finishNode(node, "NullLiteralTypeAnnotation");
|
|
|
|
case types._this:
|
|
this.next();
|
|
return this.finishNode(node, "ThisTypeAnnotation");
|
|
|
|
case types.star:
|
|
this.next();
|
|
return this.finishNode(node, "ExistsTypeAnnotation");
|
|
|
|
default:
|
|
if (this.state.type.keyword === "typeof") {
|
|
return this.flowParseTypeofType();
|
|
} else if (this.state.type.keyword) {
|
|
const label = this.state.type.label;
|
|
this.next();
|
|
return super.createIdentifier(node, label);
|
|
}
|
|
|
|
}
|
|
|
|
throw this.unexpected();
|
|
}
|
|
|
|
flowParsePostfixType() {
|
|
const startPos = this.state.start,
|
|
startLoc = this.state.startLoc;
|
|
let type = this.flowParsePrimaryType();
|
|
|
|
while (this.match(types.bracketL) && !this.canInsertSemicolon()) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.elementType = type;
|
|
this.expect(types.bracketL);
|
|
this.expect(types.bracketR);
|
|
type = this.finishNode(node, "ArrayTypeAnnotation");
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
flowParsePrefixType() {
|
|
const node = this.startNode();
|
|
|
|
if (this.eat(types.question)) {
|
|
node.typeAnnotation = this.flowParsePrefixType();
|
|
return this.finishNode(node, "NullableTypeAnnotation");
|
|
} else {
|
|
return this.flowParsePostfixType();
|
|
}
|
|
}
|
|
|
|
flowParseAnonFunctionWithoutParens() {
|
|
const param = this.flowParsePrefixType();
|
|
|
|
if (!this.state.noAnonFunctionType && this.eat(types.arrow)) {
|
|
const node = this.startNodeAt(param.start, param.loc.start);
|
|
node.params = [this.reinterpretTypeAsFunctionTypeParam(param)];
|
|
node.rest = null;
|
|
node.returnType = this.flowParseType();
|
|
node.typeParameters = null;
|
|
return this.finishNode(node, "FunctionTypeAnnotation");
|
|
}
|
|
|
|
return param;
|
|
}
|
|
|
|
flowParseIntersectionType() {
|
|
const node = this.startNode();
|
|
this.eat(types.bitwiseAND);
|
|
const type = this.flowParseAnonFunctionWithoutParens();
|
|
node.types = [type];
|
|
|
|
while (this.eat(types.bitwiseAND)) {
|
|
node.types.push(this.flowParseAnonFunctionWithoutParens());
|
|
}
|
|
|
|
return node.types.length === 1 ? type : this.finishNode(node, "IntersectionTypeAnnotation");
|
|
}
|
|
|
|
flowParseUnionType() {
|
|
const node = this.startNode();
|
|
this.eat(types.bitwiseOR);
|
|
const type = this.flowParseIntersectionType();
|
|
node.types = [type];
|
|
|
|
while (this.eat(types.bitwiseOR)) {
|
|
node.types.push(this.flowParseIntersectionType());
|
|
}
|
|
|
|
return node.types.length === 1 ? type : this.finishNode(node, "UnionTypeAnnotation");
|
|
}
|
|
|
|
flowParseType() {
|
|
const oldInType = this.state.inType;
|
|
this.state.inType = true;
|
|
const type = this.flowParseUnionType();
|
|
this.state.inType = oldInType;
|
|
this.state.exprAllowed = this.state.exprAllowed || this.state.noAnonFunctionType;
|
|
return type;
|
|
}
|
|
|
|
flowParseTypeOrImplicitInstantiation() {
|
|
if (this.state.type === types.name && this.state.value === "_") {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
const node = this.parseIdentifier();
|
|
return this.flowParseGenericType(startPos, startLoc, node);
|
|
} else {
|
|
return this.flowParseType();
|
|
}
|
|
}
|
|
|
|
flowParseTypeAnnotation() {
|
|
const node = this.startNode();
|
|
node.typeAnnotation = this.flowParseTypeInitialiser();
|
|
return this.finishNode(node, "TypeAnnotation");
|
|
}
|
|
|
|
flowParseTypeAnnotatableIdentifier(allowPrimitiveOverride) {
|
|
const ident = allowPrimitiveOverride ? this.parseIdentifier() : this.flowParseRestrictedIdentifier();
|
|
|
|
if (this.match(types.colon)) {
|
|
ident.typeAnnotation = this.flowParseTypeAnnotation();
|
|
this.resetEndLocation(ident);
|
|
}
|
|
|
|
return ident;
|
|
}
|
|
|
|
typeCastToParameter(node) {
|
|
node.expression.typeAnnotation = node.typeAnnotation;
|
|
this.resetEndLocation(node.expression, node.typeAnnotation.end, node.typeAnnotation.loc.end);
|
|
return node.expression;
|
|
}
|
|
|
|
flowParseVariance() {
|
|
let variance = null;
|
|
|
|
if (this.match(types.plusMin)) {
|
|
variance = this.startNode();
|
|
|
|
if (this.state.value === "+") {
|
|
variance.kind = "plus";
|
|
} else {
|
|
variance.kind = "minus";
|
|
}
|
|
|
|
this.next();
|
|
this.finishNode(variance, "Variance");
|
|
}
|
|
|
|
return variance;
|
|
}
|
|
|
|
parseFunctionBody(node, allowExpressionBody, isMethod = false) {
|
|
if (allowExpressionBody) {
|
|
return this.forwardNoArrowParamsConversionAt(node, () => super.parseFunctionBody(node, true, isMethod));
|
|
}
|
|
|
|
return super.parseFunctionBody(node, false, isMethod);
|
|
}
|
|
|
|
parseFunctionBodyAndFinish(node, type, isMethod = false) {
|
|
if (this.match(types.colon)) {
|
|
const typeNode = this.startNode();
|
|
[typeNode.typeAnnotation, node.predicate] = this.flowParseTypeAndPredicateInitialiser();
|
|
node.returnType = typeNode.typeAnnotation ? this.finishNode(typeNode, "TypeAnnotation") : null;
|
|
}
|
|
|
|
super.parseFunctionBodyAndFinish(node, type, isMethod);
|
|
}
|
|
|
|
parseStatement(context, topLevel) {
|
|
if (this.state.strict && this.match(types.name) && this.state.value === "interface") {
|
|
const node = this.startNode();
|
|
this.next();
|
|
return this.flowParseInterface(node);
|
|
} else if (this.shouldParseEnums() && this.isContextual("enum")) {
|
|
const node = this.startNode();
|
|
this.next();
|
|
return this.flowParseEnumDeclaration(node);
|
|
} else {
|
|
const stmt = super.parseStatement(context, topLevel);
|
|
|
|
if (this.flowPragma === undefined && !this.isValidDirective(stmt)) {
|
|
this.flowPragma = null;
|
|
}
|
|
|
|
return stmt;
|
|
}
|
|
}
|
|
|
|
parseExpressionStatement(node, expr) {
|
|
if (expr.type === "Identifier") {
|
|
if (expr.name === "declare") {
|
|
if (this.match(types._class) || this.match(types.name) || this.match(types._function) || this.match(types._var) || this.match(types._export)) {
|
|
return this.flowParseDeclare(node);
|
|
}
|
|
} else if (this.match(types.name)) {
|
|
if (expr.name === "interface") {
|
|
return this.flowParseInterface(node);
|
|
} else if (expr.name === "type") {
|
|
return this.flowParseTypeAlias(node);
|
|
} else if (expr.name === "opaque") {
|
|
return this.flowParseOpaqueType(node, false);
|
|
}
|
|
}
|
|
}
|
|
|
|
return super.parseExpressionStatement(node, expr);
|
|
}
|
|
|
|
shouldParseExportDeclaration() {
|
|
return this.isContextual("type") || this.isContextual("interface") || this.isContextual("opaque") || this.shouldParseEnums() && this.isContextual("enum") || super.shouldParseExportDeclaration();
|
|
}
|
|
|
|
isExportDefaultSpecifier() {
|
|
if (this.match(types.name) && (this.state.value === "type" || this.state.value === "interface" || this.state.value === "opaque" || this.shouldParseEnums() && this.state.value === "enum")) {
|
|
return false;
|
|
}
|
|
|
|
return super.isExportDefaultSpecifier();
|
|
}
|
|
|
|
parseExportDefaultExpression() {
|
|
if (this.shouldParseEnums() && this.isContextual("enum")) {
|
|
const node = this.startNode();
|
|
this.next();
|
|
return this.flowParseEnumDeclaration(node);
|
|
}
|
|
|
|
return super.parseExportDefaultExpression();
|
|
}
|
|
|
|
parseConditional(expr, noIn, startPos, startLoc, refNeedsArrowPos) {
|
|
if (!this.match(types.question)) return expr;
|
|
|
|
if (refNeedsArrowPos) {
|
|
const result = this.tryParse(() => super.parseConditional(expr, noIn, startPos, startLoc));
|
|
|
|
if (!result.node) {
|
|
refNeedsArrowPos.start = result.error.pos || this.state.start;
|
|
return expr;
|
|
}
|
|
|
|
if (result.error) this.state = result.failState;
|
|
return result.node;
|
|
}
|
|
|
|
this.expect(types.question);
|
|
const state = this.state.clone();
|
|
const originalNoArrowAt = this.state.noArrowAt;
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
let {
|
|
consequent,
|
|
failed
|
|
} = this.tryParseConditionalConsequent();
|
|
let [valid, invalid] = this.getArrowLikeExpressions(consequent);
|
|
|
|
if (failed || invalid.length > 0) {
|
|
const noArrowAt = [...originalNoArrowAt];
|
|
|
|
if (invalid.length > 0) {
|
|
this.state = state;
|
|
this.state.noArrowAt = noArrowAt;
|
|
|
|
for (let i = 0; i < invalid.length; i++) {
|
|
noArrowAt.push(invalid[i].start);
|
|
}
|
|
|
|
({
|
|
consequent,
|
|
failed
|
|
} = this.tryParseConditionalConsequent());
|
|
[valid, invalid] = this.getArrowLikeExpressions(consequent);
|
|
}
|
|
|
|
if (failed && valid.length > 1) {
|
|
this.raise(state.start, FlowErrors.AmbiguousConditionalArrow);
|
|
}
|
|
|
|
if (failed && valid.length === 1) {
|
|
this.state = state;
|
|
this.state.noArrowAt = noArrowAt.concat(valid[0].start);
|
|
({
|
|
consequent,
|
|
failed
|
|
} = this.tryParseConditionalConsequent());
|
|
}
|
|
}
|
|
|
|
this.getArrowLikeExpressions(consequent, true);
|
|
this.state.noArrowAt = originalNoArrowAt;
|
|
this.expect(types.colon);
|
|
node.test = expr;
|
|
node.consequent = consequent;
|
|
node.alternate = this.forwardNoArrowParamsConversionAt(node, () => this.parseMaybeAssign(noIn, undefined, undefined, undefined));
|
|
return this.finishNode(node, "ConditionalExpression");
|
|
}
|
|
|
|
tryParseConditionalConsequent() {
|
|
this.state.noArrowParamsConversionAt.push(this.state.start);
|
|
const consequent = this.parseMaybeAssign();
|
|
const failed = !this.match(types.colon);
|
|
this.state.noArrowParamsConversionAt.pop();
|
|
return {
|
|
consequent,
|
|
failed
|
|
};
|
|
}
|
|
|
|
getArrowLikeExpressions(node, disallowInvalid) {
|
|
const stack = [node];
|
|
const arrows = [];
|
|
|
|
while (stack.length !== 0) {
|
|
const node = stack.pop();
|
|
|
|
if (node.type === "ArrowFunctionExpression") {
|
|
if (node.typeParameters || !node.returnType) {
|
|
this.finishArrowValidation(node);
|
|
} else {
|
|
arrows.push(node);
|
|
}
|
|
|
|
stack.push(node.body);
|
|
} else if (node.type === "ConditionalExpression") {
|
|
stack.push(node.consequent);
|
|
stack.push(node.alternate);
|
|
}
|
|
}
|
|
|
|
if (disallowInvalid) {
|
|
arrows.forEach(node => this.finishArrowValidation(node));
|
|
return [arrows, []];
|
|
}
|
|
|
|
return partition(arrows, node => node.params.every(param => this.isAssignable(param, true)));
|
|
}
|
|
|
|
finishArrowValidation(node) {
|
|
var _node$extra;
|
|
|
|
this.toAssignableList(node.params, (_node$extra = node.extra) == null ? void 0 : _node$extra.trailingComma);
|
|
this.scope.enter(SCOPE_FUNCTION | SCOPE_ARROW);
|
|
super.checkParams(node, false, true);
|
|
this.scope.exit();
|
|
}
|
|
|
|
forwardNoArrowParamsConversionAt(node, parse) {
|
|
let result;
|
|
|
|
if (this.state.noArrowParamsConversionAt.indexOf(node.start) !== -1) {
|
|
this.state.noArrowParamsConversionAt.push(this.state.start);
|
|
result = parse();
|
|
this.state.noArrowParamsConversionAt.pop();
|
|
} else {
|
|
result = parse();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
parseParenItem(node, startPos, startLoc) {
|
|
node = super.parseParenItem(node, startPos, startLoc);
|
|
|
|
if (this.eat(types.question)) {
|
|
node.optional = true;
|
|
this.resetEndLocation(node);
|
|
}
|
|
|
|
if (this.match(types.colon)) {
|
|
const typeCastNode = this.startNodeAt(startPos, startLoc);
|
|
typeCastNode.expression = node;
|
|
typeCastNode.typeAnnotation = this.flowParseTypeAnnotation();
|
|
return this.finishNode(typeCastNode, "TypeCastExpression");
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
assertModuleNodeAllowed(node) {
|
|
if (node.type === "ImportDeclaration" && (node.importKind === "type" || node.importKind === "typeof") || node.type === "ExportNamedDeclaration" && node.exportKind === "type" || node.type === "ExportAllDeclaration" && node.exportKind === "type") {
|
|
return;
|
|
}
|
|
|
|
super.assertModuleNodeAllowed(node);
|
|
}
|
|
|
|
parseExport(node) {
|
|
const decl = super.parseExport(node);
|
|
|
|
if (decl.type === "ExportNamedDeclaration" || decl.type === "ExportAllDeclaration") {
|
|
decl.exportKind = decl.exportKind || "value";
|
|
}
|
|
|
|
return decl;
|
|
}
|
|
|
|
parseExportDeclaration(node) {
|
|
if (this.isContextual("type")) {
|
|
node.exportKind = "type";
|
|
const declarationNode = this.startNode();
|
|
this.next();
|
|
|
|
if (this.match(types.braceL)) {
|
|
node.specifiers = this.parseExportSpecifiers();
|
|
this.parseExportFrom(node);
|
|
return null;
|
|
} else {
|
|
return this.flowParseTypeAlias(declarationNode);
|
|
}
|
|
} else if (this.isContextual("opaque")) {
|
|
node.exportKind = "type";
|
|
const declarationNode = this.startNode();
|
|
this.next();
|
|
return this.flowParseOpaqueType(declarationNode, false);
|
|
} else if (this.isContextual("interface")) {
|
|
node.exportKind = "type";
|
|
const declarationNode = this.startNode();
|
|
this.next();
|
|
return this.flowParseInterface(declarationNode);
|
|
} else if (this.shouldParseEnums() && this.isContextual("enum")) {
|
|
node.exportKind = "value";
|
|
const declarationNode = this.startNode();
|
|
this.next();
|
|
return this.flowParseEnumDeclaration(declarationNode);
|
|
} else {
|
|
return super.parseExportDeclaration(node);
|
|
}
|
|
}
|
|
|
|
eatExportStar(node) {
|
|
if (super.eatExportStar(...arguments)) return true;
|
|
|
|
if (this.isContextual("type") && this.lookahead().type === types.star) {
|
|
node.exportKind = "type";
|
|
this.next();
|
|
this.next();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
maybeParseExportNamespaceSpecifier(node) {
|
|
const pos = this.state.start;
|
|
const hasNamespace = super.maybeParseExportNamespaceSpecifier(node);
|
|
|
|
if (hasNamespace && node.exportKind === "type") {
|
|
this.unexpected(pos);
|
|
}
|
|
|
|
return hasNamespace;
|
|
}
|
|
|
|
parseClassId(node, isStatement, optionalId) {
|
|
super.parseClassId(node, isStatement, optionalId);
|
|
|
|
if (this.isRelational("<")) {
|
|
node.typeParameters = this.flowParseTypeParameterDeclaration();
|
|
}
|
|
}
|
|
|
|
parseClassMember(classBody, member, state, constructorAllowsSuper) {
|
|
const pos = this.state.start;
|
|
|
|
if (this.isContextual("declare")) {
|
|
if (this.parseClassMemberFromModifier(classBody, member)) {
|
|
return;
|
|
}
|
|
|
|
member.declare = true;
|
|
}
|
|
|
|
super.parseClassMember(classBody, member, state, constructorAllowsSuper);
|
|
|
|
if (member.declare) {
|
|
if (member.type !== "ClassProperty" && member.type !== "ClassPrivateProperty") {
|
|
this.raise(pos, FlowErrors.DeclareClassElement);
|
|
} else if (member.value) {
|
|
this.raise(member.value.start, FlowErrors.DeclareClassFieldInitializer);
|
|
}
|
|
}
|
|
}
|
|
|
|
getTokenFromCode(code) {
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (code === 123 && next === 124) {
|
|
return this.finishOp(types.braceBarL, 2);
|
|
} else if (this.state.inType && (code === 62 || code === 60)) {
|
|
return this.finishOp(types.relational, 1);
|
|
} else if (isIteratorStart(code, next)) {
|
|
this.state.isIterator = true;
|
|
return super.readWord();
|
|
} else {
|
|
return super.getTokenFromCode(code);
|
|
}
|
|
}
|
|
|
|
isAssignable(node, isBinding) {
|
|
switch (node.type) {
|
|
case "Identifier":
|
|
case "ObjectPattern":
|
|
case "ArrayPattern":
|
|
case "AssignmentPattern":
|
|
return true;
|
|
|
|
case "ObjectExpression":
|
|
{
|
|
const last = node.properties.length - 1;
|
|
return node.properties.every((prop, i) => {
|
|
return prop.type !== "ObjectMethod" && (i === last || prop.type === "SpreadElement") && this.isAssignable(prop);
|
|
});
|
|
}
|
|
|
|
case "ObjectProperty":
|
|
return this.isAssignable(node.value);
|
|
|
|
case "SpreadElement":
|
|
return this.isAssignable(node.argument);
|
|
|
|
case "ArrayExpression":
|
|
return node.elements.every(element => this.isAssignable(element));
|
|
|
|
case "AssignmentExpression":
|
|
return node.operator === "=";
|
|
|
|
case "ParenthesizedExpression":
|
|
case "TypeCastExpression":
|
|
return this.isAssignable(node.expression);
|
|
|
|
case "MemberExpression":
|
|
case "OptionalMemberExpression":
|
|
return !isBinding;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
toAssignable(node) {
|
|
if (node.type === "TypeCastExpression") {
|
|
return super.toAssignable(this.typeCastToParameter(node));
|
|
} else {
|
|
return super.toAssignable(node);
|
|
}
|
|
}
|
|
|
|
toAssignableList(exprList, trailingCommaPos) {
|
|
for (let i = 0; i < exprList.length; i++) {
|
|
const expr = exprList[i];
|
|
|
|
if ((expr == null ? void 0 : expr.type) === "TypeCastExpression") {
|
|
exprList[i] = this.typeCastToParameter(expr);
|
|
}
|
|
}
|
|
|
|
return super.toAssignableList(exprList, trailingCommaPos);
|
|
}
|
|
|
|
toReferencedList(exprList, isParenthesizedExpr) {
|
|
for (let i = 0; i < exprList.length; i++) {
|
|
var _expr$extra;
|
|
|
|
const expr = exprList[i];
|
|
|
|
if (expr && expr.type === "TypeCastExpression" && !((_expr$extra = expr.extra) == null ? void 0 : _expr$extra.parenthesized) && (exprList.length > 1 || !isParenthesizedExpr)) {
|
|
this.raise(expr.typeAnnotation.start, FlowErrors.TypeCastInPattern);
|
|
}
|
|
}
|
|
|
|
return exprList;
|
|
}
|
|
|
|
checkLVal(expr, bindingType = BIND_NONE, checkClashes, contextDescription) {
|
|
if (expr.type !== "TypeCastExpression") {
|
|
return super.checkLVal(expr, bindingType, checkClashes, contextDescription);
|
|
}
|
|
}
|
|
|
|
parseClassProperty(node) {
|
|
if (this.match(types.colon)) {
|
|
node.typeAnnotation = this.flowParseTypeAnnotation();
|
|
}
|
|
|
|
return super.parseClassProperty(node);
|
|
}
|
|
|
|
parseClassPrivateProperty(node) {
|
|
if (this.match(types.colon)) {
|
|
node.typeAnnotation = this.flowParseTypeAnnotation();
|
|
}
|
|
|
|
return super.parseClassPrivateProperty(node);
|
|
}
|
|
|
|
isClassMethod() {
|
|
return this.isRelational("<") || super.isClassMethod();
|
|
}
|
|
|
|
isClassProperty() {
|
|
return this.match(types.colon) || super.isClassProperty();
|
|
}
|
|
|
|
isNonstaticConstructor(method) {
|
|
return !this.match(types.colon) && super.isNonstaticConstructor(method);
|
|
}
|
|
|
|
pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper) {
|
|
if (method.variance) {
|
|
this.unexpected(method.variance.start);
|
|
}
|
|
|
|
delete method.variance;
|
|
|
|
if (this.isRelational("<")) {
|
|
method.typeParameters = this.flowParseTypeParameterDeclaration();
|
|
}
|
|
|
|
super.pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper);
|
|
}
|
|
|
|
pushClassPrivateMethod(classBody, method, isGenerator, isAsync) {
|
|
if (method.variance) {
|
|
this.unexpected(method.variance.start);
|
|
}
|
|
|
|
delete method.variance;
|
|
|
|
if (this.isRelational("<")) {
|
|
method.typeParameters = this.flowParseTypeParameterDeclaration();
|
|
}
|
|
|
|
super.pushClassPrivateMethod(classBody, method, isGenerator, isAsync);
|
|
}
|
|
|
|
parseClassSuper(node) {
|
|
super.parseClassSuper(node);
|
|
|
|
if (node.superClass && this.isRelational("<")) {
|
|
node.superTypeParameters = this.flowParseTypeParameterInstantiation();
|
|
}
|
|
|
|
if (this.isContextual("implements")) {
|
|
this.next();
|
|
const implemented = node.implements = [];
|
|
|
|
do {
|
|
const node = this.startNode();
|
|
node.id = this.flowParseRestrictedIdentifier(true);
|
|
|
|
if (this.isRelational("<")) {
|
|
node.typeParameters = this.flowParseTypeParameterInstantiation();
|
|
} else {
|
|
node.typeParameters = null;
|
|
}
|
|
|
|
implemented.push(this.finishNode(node, "ClassImplements"));
|
|
} while (this.eat(types.comma));
|
|
}
|
|
}
|
|
|
|
parsePropertyName(node, isPrivateNameAllowed) {
|
|
const variance = this.flowParseVariance();
|
|
const key = super.parsePropertyName(node, isPrivateNameAllowed);
|
|
node.variance = variance;
|
|
return key;
|
|
}
|
|
|
|
parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, refExpressionErrors, containsEsc) {
|
|
if (prop.variance) {
|
|
this.unexpected(prop.variance.start);
|
|
}
|
|
|
|
delete prop.variance;
|
|
let typeParameters;
|
|
|
|
if (this.isRelational("<")) {
|
|
typeParameters = this.flowParseTypeParameterDeclaration();
|
|
if (!this.match(types.parenL)) this.unexpected();
|
|
}
|
|
|
|
super.parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, refExpressionErrors, containsEsc);
|
|
|
|
if (typeParameters) {
|
|
(prop.value || prop).typeParameters = typeParameters;
|
|
}
|
|
}
|
|
|
|
parseAssignableListItemTypes(param) {
|
|
if (this.eat(types.question)) {
|
|
if (param.type !== "Identifier") {
|
|
this.raise(param.start, FlowErrors.OptionalBindingPattern);
|
|
}
|
|
|
|
param.optional = true;
|
|
}
|
|
|
|
if (this.match(types.colon)) {
|
|
param.typeAnnotation = this.flowParseTypeAnnotation();
|
|
}
|
|
|
|
this.resetEndLocation(param);
|
|
return param;
|
|
}
|
|
|
|
parseMaybeDefault(startPos, startLoc, left) {
|
|
const node = super.parseMaybeDefault(startPos, startLoc, left);
|
|
|
|
if (node.type === "AssignmentPattern" && node.typeAnnotation && node.right.start < node.typeAnnotation.start) {
|
|
this.raise(node.typeAnnotation.start, FlowErrors.TypeBeforeInitializer);
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
shouldParseDefaultImport(node) {
|
|
if (!hasTypeImportKind(node)) {
|
|
return super.shouldParseDefaultImport(node);
|
|
}
|
|
|
|
return isMaybeDefaultImport(this.state);
|
|
}
|
|
|
|
parseImportSpecifierLocal(node, specifier, type, contextDescription) {
|
|
specifier.local = hasTypeImportKind(node) ? this.flowParseRestrictedIdentifier(true, true) : this.parseIdentifier();
|
|
this.checkLVal(specifier.local, BIND_LEXICAL, undefined, contextDescription);
|
|
node.specifiers.push(this.finishNode(specifier, type));
|
|
}
|
|
|
|
maybeParseDefaultImportSpecifier(node) {
|
|
node.importKind = "value";
|
|
let kind = null;
|
|
|
|
if (this.match(types._typeof)) {
|
|
kind = "typeof";
|
|
} else if (this.isContextual("type")) {
|
|
kind = "type";
|
|
}
|
|
|
|
if (kind) {
|
|
const lh = this.lookahead();
|
|
|
|
if (kind === "type" && lh.type === types.star) {
|
|
this.unexpected(lh.start);
|
|
}
|
|
|
|
if (isMaybeDefaultImport(lh) || lh.type === types.braceL || lh.type === types.star) {
|
|
this.next();
|
|
node.importKind = kind;
|
|
}
|
|
}
|
|
|
|
return super.maybeParseDefaultImportSpecifier(node);
|
|
}
|
|
|
|
parseImportSpecifier(node) {
|
|
const specifier = this.startNode();
|
|
const firstIdentLoc = this.state.start;
|
|
const firstIdent = this.parseIdentifier(true);
|
|
let specifierTypeKind = null;
|
|
|
|
if (firstIdent.name === "type") {
|
|
specifierTypeKind = "type";
|
|
} else if (firstIdent.name === "typeof") {
|
|
specifierTypeKind = "typeof";
|
|
}
|
|
|
|
let isBinding = false;
|
|
|
|
if (this.isContextual("as") && !this.isLookaheadContextual("as")) {
|
|
const as_ident = this.parseIdentifier(true);
|
|
|
|
if (specifierTypeKind !== null && !this.match(types.name) && !this.state.type.keyword) {
|
|
specifier.imported = as_ident;
|
|
specifier.importKind = specifierTypeKind;
|
|
specifier.local = as_ident.__clone();
|
|
} else {
|
|
specifier.imported = firstIdent;
|
|
specifier.importKind = null;
|
|
specifier.local = this.parseIdentifier();
|
|
}
|
|
} else if (specifierTypeKind !== null && (this.match(types.name) || this.state.type.keyword)) {
|
|
specifier.imported = this.parseIdentifier(true);
|
|
specifier.importKind = specifierTypeKind;
|
|
|
|
if (this.eatContextual("as")) {
|
|
specifier.local = this.parseIdentifier();
|
|
} else {
|
|
isBinding = true;
|
|
specifier.local = specifier.imported.__clone();
|
|
}
|
|
} else {
|
|
isBinding = true;
|
|
specifier.imported = firstIdent;
|
|
specifier.importKind = null;
|
|
specifier.local = specifier.imported.__clone();
|
|
}
|
|
|
|
const nodeIsTypeImport = hasTypeImportKind(node);
|
|
const specifierIsTypeImport = hasTypeImportKind(specifier);
|
|
|
|
if (nodeIsTypeImport && specifierIsTypeImport) {
|
|
this.raise(firstIdentLoc, FlowErrors.ImportTypeShorthandOnlyInPureImport);
|
|
}
|
|
|
|
if (nodeIsTypeImport || specifierIsTypeImport) {
|
|
this.checkReservedType(specifier.local.name, specifier.local.start, true);
|
|
}
|
|
|
|
if (isBinding && !nodeIsTypeImport && !specifierIsTypeImport) {
|
|
this.checkReservedWord(specifier.local.name, specifier.start, true, true);
|
|
}
|
|
|
|
this.checkLVal(specifier.local, BIND_LEXICAL, undefined, "import specifier");
|
|
node.specifiers.push(this.finishNode(specifier, "ImportSpecifier"));
|
|
}
|
|
|
|
parseFunctionParams(node, allowModifiers) {
|
|
const kind = node.kind;
|
|
|
|
if (kind !== "get" && kind !== "set" && this.isRelational("<")) {
|
|
node.typeParameters = this.flowParseTypeParameterDeclaration();
|
|
}
|
|
|
|
super.parseFunctionParams(node, allowModifiers);
|
|
}
|
|
|
|
parseVarId(decl, kind) {
|
|
super.parseVarId(decl, kind);
|
|
|
|
if (this.match(types.colon)) {
|
|
decl.id.typeAnnotation = this.flowParseTypeAnnotation();
|
|
this.resetEndLocation(decl.id);
|
|
}
|
|
}
|
|
|
|
parseAsyncArrowFromCallExpression(node, call) {
|
|
if (this.match(types.colon)) {
|
|
const oldNoAnonFunctionType = this.state.noAnonFunctionType;
|
|
this.state.noAnonFunctionType = true;
|
|
node.returnType = this.flowParseTypeAnnotation();
|
|
this.state.noAnonFunctionType = oldNoAnonFunctionType;
|
|
}
|
|
|
|
return super.parseAsyncArrowFromCallExpression(node, call);
|
|
}
|
|
|
|
shouldParseAsyncArrow() {
|
|
return this.match(types.colon) || super.shouldParseAsyncArrow();
|
|
}
|
|
|
|
parseMaybeAssign(noIn, refExpressionErrors, afterLeftParse, refNeedsArrowPos) {
|
|
var _jsx;
|
|
|
|
let state = null;
|
|
let jsx;
|
|
|
|
if (this.hasPlugin("jsx") && (this.match(types.jsxTagStart) || this.isRelational("<"))) {
|
|
state = this.state.clone();
|
|
jsx = this.tryParse(() => super.parseMaybeAssign(noIn, refExpressionErrors, afterLeftParse, refNeedsArrowPos), state);
|
|
if (!jsx.error) return jsx.node;
|
|
const {
|
|
context
|
|
} = this.state;
|
|
|
|
if (context[context.length - 1] === types$1.j_oTag) {
|
|
context.length -= 2;
|
|
} else if (context[context.length - 1] === types$1.j_expr) {
|
|
context.length -= 1;
|
|
}
|
|
}
|
|
|
|
if (((_jsx = jsx) == null ? void 0 : _jsx.error) || this.isRelational("<")) {
|
|
var _arrow$node, _jsx2, _jsx3;
|
|
|
|
state = state || this.state.clone();
|
|
let typeParameters;
|
|
const arrow = this.tryParse(() => {
|
|
typeParameters = this.flowParseTypeParameterDeclaration();
|
|
const arrowExpression = this.forwardNoArrowParamsConversionAt(typeParameters, () => super.parseMaybeAssign(noIn, refExpressionErrors, afterLeftParse, refNeedsArrowPos));
|
|
arrowExpression.typeParameters = typeParameters;
|
|
this.resetStartLocationFromNode(arrowExpression, typeParameters);
|
|
return arrowExpression;
|
|
}, state);
|
|
const arrowExpression = ((_arrow$node = arrow.node) == null ? void 0 : _arrow$node.type) === "ArrowFunctionExpression" ? arrow.node : null;
|
|
if (!arrow.error && arrowExpression) return arrowExpression;
|
|
|
|
if ((_jsx2 = jsx) == null ? void 0 : _jsx2.node) {
|
|
this.state = jsx.failState;
|
|
return jsx.node;
|
|
}
|
|
|
|
if (arrowExpression) {
|
|
this.state = arrow.failState;
|
|
return arrowExpression;
|
|
}
|
|
|
|
if ((_jsx3 = jsx) == null ? void 0 : _jsx3.thrown) throw jsx.error;
|
|
if (arrow.thrown) throw arrow.error;
|
|
throw this.raise(typeParameters.start, FlowErrors.UnexpectedTokenAfterTypeParameter);
|
|
}
|
|
|
|
return super.parseMaybeAssign(noIn, refExpressionErrors, afterLeftParse, refNeedsArrowPos);
|
|
}
|
|
|
|
parseArrow(node) {
|
|
if (this.match(types.colon)) {
|
|
const result = this.tryParse(() => {
|
|
const oldNoAnonFunctionType = this.state.noAnonFunctionType;
|
|
this.state.noAnonFunctionType = true;
|
|
const typeNode = this.startNode();
|
|
[typeNode.typeAnnotation, node.predicate] = this.flowParseTypeAndPredicateInitialiser();
|
|
this.state.noAnonFunctionType = oldNoAnonFunctionType;
|
|
if (this.canInsertSemicolon()) this.unexpected();
|
|
if (!this.match(types.arrow)) this.unexpected();
|
|
return typeNode;
|
|
});
|
|
if (result.thrown) return null;
|
|
if (result.error) this.state = result.failState;
|
|
node.returnType = result.node.typeAnnotation ? this.finishNode(result.node, "TypeAnnotation") : null;
|
|
}
|
|
|
|
return super.parseArrow(node);
|
|
}
|
|
|
|
shouldParseArrow() {
|
|
return this.match(types.colon) || super.shouldParseArrow();
|
|
}
|
|
|
|
setArrowFunctionParameters(node, params) {
|
|
if (this.state.noArrowParamsConversionAt.indexOf(node.start) !== -1) {
|
|
node.params = params;
|
|
} else {
|
|
super.setArrowFunctionParameters(node, params);
|
|
}
|
|
}
|
|
|
|
checkParams(node, allowDuplicates, isArrowFunction) {
|
|
if (isArrowFunction && this.state.noArrowParamsConversionAt.indexOf(node.start) !== -1) {
|
|
return;
|
|
}
|
|
|
|
return super.checkParams(...arguments);
|
|
}
|
|
|
|
parseParenAndDistinguishExpression(canBeArrow) {
|
|
return super.parseParenAndDistinguishExpression(canBeArrow && this.state.noArrowAt.indexOf(this.state.start) === -1);
|
|
}
|
|
|
|
parseSubscripts(base, startPos, startLoc, noCalls) {
|
|
if (base.type === "Identifier" && base.name === "async" && this.state.noArrowAt.indexOf(startPos) !== -1) {
|
|
this.next();
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.callee = base;
|
|
node.arguments = this.parseCallExpressionArguments(types.parenR, false);
|
|
base = this.finishNode(node, "CallExpression");
|
|
} else if (base.type === "Identifier" && base.name === "async" && this.isRelational("<")) {
|
|
const state = this.state.clone();
|
|
const arrow = this.tryParse(abort => this.parseAsyncArrowWithTypeParameters(startPos, startLoc) || abort(), state);
|
|
if (!arrow.error && !arrow.aborted) return arrow.node;
|
|
const result = this.tryParse(() => super.parseSubscripts(base, startPos, startLoc, noCalls), state);
|
|
if (result.node && !result.error) return result.node;
|
|
|
|
if (arrow.node) {
|
|
this.state = arrow.failState;
|
|
return arrow.node;
|
|
}
|
|
|
|
if (result.node) {
|
|
this.state = result.failState;
|
|
return result.node;
|
|
}
|
|
|
|
throw arrow.error || result.error;
|
|
}
|
|
|
|
return super.parseSubscripts(base, startPos, startLoc, noCalls);
|
|
}
|
|
|
|
parseSubscript(base, startPos, startLoc, noCalls, subscriptState) {
|
|
if (this.match(types.questionDot) && this.isLookaheadRelational("<")) {
|
|
subscriptState.optionalChainMember = true;
|
|
|
|
if (noCalls) {
|
|
subscriptState.stop = true;
|
|
return base;
|
|
}
|
|
|
|
this.next();
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.callee = base;
|
|
node.typeArguments = this.flowParseTypeParameterInstantiation();
|
|
this.expect(types.parenL);
|
|
node.arguments = this.parseCallExpressionArguments(types.parenR, false);
|
|
node.optional = true;
|
|
return this.finishCallExpression(node, true);
|
|
} else if (!noCalls && this.shouldParseTypes() && this.isRelational("<")) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.callee = base;
|
|
const result = this.tryParse(() => {
|
|
node.typeArguments = this.flowParseTypeParameterInstantiationCallOrNew();
|
|
this.expect(types.parenL);
|
|
node.arguments = this.parseCallExpressionArguments(types.parenR, false);
|
|
if (subscriptState.optionalChainMember) node.optional = false;
|
|
return this.finishCallExpression(node, subscriptState.optionalChainMember);
|
|
});
|
|
|
|
if (result.node) {
|
|
if (result.error) this.state = result.failState;
|
|
return result.node;
|
|
}
|
|
}
|
|
|
|
return super.parseSubscript(base, startPos, startLoc, noCalls, subscriptState);
|
|
}
|
|
|
|
parseNewArguments(node) {
|
|
let targs = null;
|
|
|
|
if (this.shouldParseTypes() && this.isRelational("<")) {
|
|
targs = this.tryParse(() => this.flowParseTypeParameterInstantiationCallOrNew()).node;
|
|
}
|
|
|
|
node.typeArguments = targs;
|
|
super.parseNewArguments(node);
|
|
}
|
|
|
|
parseAsyncArrowWithTypeParameters(startPos, startLoc) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
this.parseFunctionParams(node);
|
|
if (!this.parseArrow(node)) return;
|
|
return this.parseArrowExpression(node, undefined, true);
|
|
}
|
|
|
|
readToken_mult_modulo(code) {
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (code === 42 && next === 47 && this.state.hasFlowComment) {
|
|
this.state.hasFlowComment = false;
|
|
this.state.pos += 2;
|
|
this.nextToken();
|
|
return;
|
|
}
|
|
|
|
super.readToken_mult_modulo(code);
|
|
}
|
|
|
|
readToken_pipe_amp(code) {
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (code === 124 && next === 125) {
|
|
this.finishOp(types.braceBarR, 2);
|
|
return;
|
|
}
|
|
|
|
super.readToken_pipe_amp(code);
|
|
}
|
|
|
|
parseTopLevel(file, program) {
|
|
const fileNode = super.parseTopLevel(file, program);
|
|
|
|
if (this.state.hasFlowComment) {
|
|
this.raise(this.state.pos, FlowErrors.UnterminatedFlowComment);
|
|
}
|
|
|
|
return fileNode;
|
|
}
|
|
|
|
skipBlockComment() {
|
|
if (this.hasPlugin("flowComments") && this.skipFlowComment()) {
|
|
if (this.state.hasFlowComment) {
|
|
this.unexpected(null, FlowErrors.NestedFlowComment);
|
|
}
|
|
|
|
this.hasFlowCommentCompletion();
|
|
this.state.pos += this.skipFlowComment();
|
|
this.state.hasFlowComment = true;
|
|
return;
|
|
}
|
|
|
|
if (this.state.hasFlowComment) {
|
|
const end = this.input.indexOf("*-/", this.state.pos += 2);
|
|
|
|
if (end === -1) {
|
|
throw this.raise(this.state.pos - 2, ErrorMessages.UnterminatedComment);
|
|
}
|
|
|
|
this.state.pos = end + 3;
|
|
return;
|
|
}
|
|
|
|
super.skipBlockComment();
|
|
}
|
|
|
|
skipFlowComment() {
|
|
const {
|
|
pos
|
|
} = this.state;
|
|
let shiftToFirstNonWhiteSpace = 2;
|
|
|
|
while ([32, 9].includes(this.input.charCodeAt(pos + shiftToFirstNonWhiteSpace))) {
|
|
shiftToFirstNonWhiteSpace++;
|
|
}
|
|
|
|
const ch2 = this.input.charCodeAt(shiftToFirstNonWhiteSpace + pos);
|
|
const ch3 = this.input.charCodeAt(shiftToFirstNonWhiteSpace + pos + 1);
|
|
|
|
if (ch2 === 58 && ch3 === 58) {
|
|
return shiftToFirstNonWhiteSpace + 2;
|
|
}
|
|
|
|
if (this.input.slice(shiftToFirstNonWhiteSpace + pos, shiftToFirstNonWhiteSpace + pos + 12) === "flow-include") {
|
|
return shiftToFirstNonWhiteSpace + 12;
|
|
}
|
|
|
|
if (ch2 === 58 && ch3 !== 58) {
|
|
return shiftToFirstNonWhiteSpace;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
hasFlowCommentCompletion() {
|
|
const end = this.input.indexOf("*/", this.state.pos);
|
|
|
|
if (end === -1) {
|
|
throw this.raise(this.state.pos, ErrorMessages.UnterminatedComment);
|
|
}
|
|
}
|
|
|
|
flowEnumErrorBooleanMemberNotInitialized(pos, {
|
|
enumName,
|
|
memberName
|
|
}) {
|
|
this.raise(pos, FlowErrors.EnumBooleanMemberNotInitialized, memberName, enumName);
|
|
}
|
|
|
|
flowEnumErrorInvalidMemberName(pos, {
|
|
enumName,
|
|
memberName
|
|
}) {
|
|
const suggestion = memberName[0].toUpperCase() + memberName.slice(1);
|
|
this.raise(pos, FlowErrors.EnumInvalidMemberName, memberName, suggestion, enumName);
|
|
}
|
|
|
|
flowEnumErrorDuplicateMemberName(pos, {
|
|
enumName,
|
|
memberName
|
|
}) {
|
|
this.raise(pos, FlowErrors.EnumDuplicateMemberName, memberName, enumName);
|
|
}
|
|
|
|
flowEnumErrorInconsistentMemberValues(pos, {
|
|
enumName
|
|
}) {
|
|
this.raise(pos, FlowErrors.EnumInconsistentMemberValues, enumName);
|
|
}
|
|
|
|
flowEnumErrorInvalidExplicitType(pos, {
|
|
enumName,
|
|
suppliedType
|
|
}) {
|
|
return this.raise(pos, suppliedType === null ? FlowErrors.EnumInvalidExplicitTypeUnknownSupplied : FlowErrors.EnumInvalidExplicitType, enumName, suppliedType);
|
|
}
|
|
|
|
flowEnumErrorInvalidMemberInitializer(pos, {
|
|
enumName,
|
|
explicitType,
|
|
memberName
|
|
}) {
|
|
let message = null;
|
|
|
|
switch (explicitType) {
|
|
case "boolean":
|
|
case "number":
|
|
case "string":
|
|
message = FlowErrors.EnumInvalidMemberInitializerPrimaryType;
|
|
break;
|
|
|
|
case "symbol":
|
|
message = FlowErrors.EnumInvalidMemberInitializerSymbolType;
|
|
break;
|
|
|
|
default:
|
|
message = FlowErrors.EnumInvalidMemberInitializerUnknownType;
|
|
}
|
|
|
|
return this.raise(pos, message, enumName, memberName, explicitType);
|
|
}
|
|
|
|
flowEnumErrorNumberMemberNotInitialized(pos, {
|
|
enumName,
|
|
memberName
|
|
}) {
|
|
this.raise(pos, FlowErrors.EnumNumberMemberNotInitialized, enumName, memberName);
|
|
}
|
|
|
|
flowEnumErrorStringMemberInconsistentlyInitailized(pos, {
|
|
enumName
|
|
}) {
|
|
this.raise(pos, FlowErrors.EnumStringMemberInconsistentlyInitailized, enumName);
|
|
}
|
|
|
|
flowEnumMemberInit() {
|
|
const startPos = this.state.start;
|
|
|
|
const endOfInit = () => this.match(types.comma) || this.match(types.braceR);
|
|
|
|
switch (this.state.type) {
|
|
case types.num:
|
|
{
|
|
const literal = this.parseLiteral(this.state.value, "NumericLiteral");
|
|
|
|
if (endOfInit()) {
|
|
return {
|
|
type: "number",
|
|
pos: literal.start,
|
|
value: literal
|
|
};
|
|
}
|
|
|
|
return {
|
|
type: "invalid",
|
|
pos: startPos
|
|
};
|
|
}
|
|
|
|
case types.string:
|
|
{
|
|
const literal = this.parseLiteral(this.state.value, "StringLiteral");
|
|
|
|
if (endOfInit()) {
|
|
return {
|
|
type: "string",
|
|
pos: literal.start,
|
|
value: literal
|
|
};
|
|
}
|
|
|
|
return {
|
|
type: "invalid",
|
|
pos: startPos
|
|
};
|
|
}
|
|
|
|
case types._true:
|
|
case types._false:
|
|
{
|
|
const literal = this.parseBooleanLiteral();
|
|
|
|
if (endOfInit()) {
|
|
return {
|
|
type: "boolean",
|
|
pos: literal.start,
|
|
value: literal
|
|
};
|
|
}
|
|
|
|
return {
|
|
type: "invalid",
|
|
pos: startPos
|
|
};
|
|
}
|
|
|
|
default:
|
|
return {
|
|
type: "invalid",
|
|
pos: startPos
|
|
};
|
|
}
|
|
}
|
|
|
|
flowEnumMemberRaw() {
|
|
const pos = this.state.start;
|
|
const id = this.parseIdentifier(true);
|
|
const init = this.eat(types.eq) ? this.flowEnumMemberInit() : {
|
|
type: "none",
|
|
pos
|
|
};
|
|
return {
|
|
id,
|
|
init
|
|
};
|
|
}
|
|
|
|
flowEnumCheckExplicitTypeMismatch(pos, context, expectedType) {
|
|
const {
|
|
explicitType
|
|
} = context;
|
|
|
|
if (explicitType === null) {
|
|
return;
|
|
}
|
|
|
|
if (explicitType !== expectedType) {
|
|
this.flowEnumErrorInvalidMemberInitializer(pos, context);
|
|
}
|
|
}
|
|
|
|
flowEnumMembers({
|
|
enumName,
|
|
explicitType
|
|
}) {
|
|
const seenNames = new Set();
|
|
const members = {
|
|
booleanMembers: [],
|
|
numberMembers: [],
|
|
stringMembers: [],
|
|
defaultedMembers: []
|
|
};
|
|
|
|
while (!this.match(types.braceR)) {
|
|
const memberNode = this.startNode();
|
|
const {
|
|
id,
|
|
init
|
|
} = this.flowEnumMemberRaw();
|
|
const memberName = id.name;
|
|
|
|
if (memberName === "") {
|
|
continue;
|
|
}
|
|
|
|
if (/^[a-z]/.test(memberName)) {
|
|
this.flowEnumErrorInvalidMemberName(id.start, {
|
|
enumName,
|
|
memberName
|
|
});
|
|
}
|
|
|
|
if (seenNames.has(memberName)) {
|
|
this.flowEnumErrorDuplicateMemberName(id.start, {
|
|
enumName,
|
|
memberName
|
|
});
|
|
}
|
|
|
|
seenNames.add(memberName);
|
|
const context = {
|
|
enumName,
|
|
explicitType,
|
|
memberName
|
|
};
|
|
memberNode.id = id;
|
|
|
|
switch (init.type) {
|
|
case "boolean":
|
|
{
|
|
this.flowEnumCheckExplicitTypeMismatch(init.pos, context, "boolean");
|
|
memberNode.init = init.value;
|
|
members.booleanMembers.push(this.finishNode(memberNode, "EnumBooleanMember"));
|
|
break;
|
|
}
|
|
|
|
case "number":
|
|
{
|
|
this.flowEnumCheckExplicitTypeMismatch(init.pos, context, "number");
|
|
memberNode.init = init.value;
|
|
members.numberMembers.push(this.finishNode(memberNode, "EnumNumberMember"));
|
|
break;
|
|
}
|
|
|
|
case "string":
|
|
{
|
|
this.flowEnumCheckExplicitTypeMismatch(init.pos, context, "string");
|
|
memberNode.init = init.value;
|
|
members.stringMembers.push(this.finishNode(memberNode, "EnumStringMember"));
|
|
break;
|
|
}
|
|
|
|
case "invalid":
|
|
{
|
|
throw this.flowEnumErrorInvalidMemberInitializer(init.pos, context);
|
|
}
|
|
|
|
case "none":
|
|
{
|
|
switch (explicitType) {
|
|
case "boolean":
|
|
this.flowEnumErrorBooleanMemberNotInitialized(init.pos, context);
|
|
break;
|
|
|
|
case "number":
|
|
this.flowEnumErrorNumberMemberNotInitialized(init.pos, context);
|
|
break;
|
|
|
|
default:
|
|
members.defaultedMembers.push(this.finishNode(memberNode, "EnumDefaultedMember"));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!this.match(types.braceR)) {
|
|
this.expect(types.comma);
|
|
}
|
|
}
|
|
|
|
return members;
|
|
}
|
|
|
|
flowEnumStringMembers(initializedMembers, defaultedMembers, {
|
|
enumName
|
|
}) {
|
|
if (initializedMembers.length === 0) {
|
|
return defaultedMembers;
|
|
} else if (defaultedMembers.length === 0) {
|
|
return initializedMembers;
|
|
} else if (defaultedMembers.length > initializedMembers.length) {
|
|
for (let _i = 0; _i < initializedMembers.length; _i++) {
|
|
const member = initializedMembers[_i];
|
|
this.flowEnumErrorStringMemberInconsistentlyInitailized(member.start, {
|
|
enumName
|
|
});
|
|
}
|
|
|
|
return defaultedMembers;
|
|
} else {
|
|
for (let _i2 = 0; _i2 < defaultedMembers.length; _i2++) {
|
|
const member = defaultedMembers[_i2];
|
|
this.flowEnumErrorStringMemberInconsistentlyInitailized(member.start, {
|
|
enumName
|
|
});
|
|
}
|
|
|
|
return initializedMembers;
|
|
}
|
|
}
|
|
|
|
flowEnumParseExplicitType({
|
|
enumName
|
|
}) {
|
|
if (this.eatContextual("of")) {
|
|
if (!this.match(types.name)) {
|
|
throw this.flowEnumErrorInvalidExplicitType(this.state.start, {
|
|
enumName,
|
|
suppliedType: null
|
|
});
|
|
}
|
|
|
|
const {
|
|
value
|
|
} = this.state;
|
|
this.next();
|
|
|
|
if (value !== "boolean" && value !== "number" && value !== "string" && value !== "symbol") {
|
|
this.flowEnumErrorInvalidExplicitType(this.state.start, {
|
|
enumName,
|
|
suppliedType: value
|
|
});
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
flowEnumBody(node, {
|
|
enumName,
|
|
nameLoc
|
|
}) {
|
|
const explicitType = this.flowEnumParseExplicitType({
|
|
enumName
|
|
});
|
|
this.expect(types.braceL);
|
|
const members = this.flowEnumMembers({
|
|
enumName,
|
|
explicitType
|
|
});
|
|
|
|
switch (explicitType) {
|
|
case "boolean":
|
|
node.explicitType = true;
|
|
node.members = members.booleanMembers;
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "EnumBooleanBody");
|
|
|
|
case "number":
|
|
node.explicitType = true;
|
|
node.members = members.numberMembers;
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "EnumNumberBody");
|
|
|
|
case "string":
|
|
node.explicitType = true;
|
|
node.members = this.flowEnumStringMembers(members.stringMembers, members.defaultedMembers, {
|
|
enumName
|
|
});
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "EnumStringBody");
|
|
|
|
case "symbol":
|
|
node.members = members.defaultedMembers;
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "EnumSymbolBody");
|
|
|
|
default:
|
|
{
|
|
const empty = () => {
|
|
node.members = [];
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "EnumStringBody");
|
|
};
|
|
|
|
node.explicitType = false;
|
|
const boolsLen = members.booleanMembers.length;
|
|
const numsLen = members.numberMembers.length;
|
|
const strsLen = members.stringMembers.length;
|
|
const defaultedLen = members.defaultedMembers.length;
|
|
|
|
if (!boolsLen && !numsLen && !strsLen && !defaultedLen) {
|
|
return empty();
|
|
} else if (!boolsLen && !numsLen) {
|
|
node.members = this.flowEnumStringMembers(members.stringMembers, members.defaultedMembers, {
|
|
enumName
|
|
});
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "EnumStringBody");
|
|
} else if (!numsLen && !strsLen && boolsLen >= defaultedLen) {
|
|
for (let _i3 = 0, _members$defaultedMem = members.defaultedMembers; _i3 < _members$defaultedMem.length; _i3++) {
|
|
const member = _members$defaultedMem[_i3];
|
|
this.flowEnumErrorBooleanMemberNotInitialized(member.start, {
|
|
enumName,
|
|
memberName: member.id.name
|
|
});
|
|
}
|
|
|
|
node.members = members.booleanMembers;
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "EnumBooleanBody");
|
|
} else if (!boolsLen && !strsLen && numsLen >= defaultedLen) {
|
|
for (let _i4 = 0, _members$defaultedMem2 = members.defaultedMembers; _i4 < _members$defaultedMem2.length; _i4++) {
|
|
const member = _members$defaultedMem2[_i4];
|
|
this.flowEnumErrorNumberMemberNotInitialized(member.start, {
|
|
enumName,
|
|
memberName: member.id.name
|
|
});
|
|
}
|
|
|
|
node.members = members.numberMembers;
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "EnumNumberBody");
|
|
} else {
|
|
this.flowEnumErrorInconsistentMemberValues(nameLoc, {
|
|
enumName
|
|
});
|
|
return empty();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
flowParseEnumDeclaration(node) {
|
|
const id = this.parseIdentifier();
|
|
node.id = id;
|
|
node.body = this.flowEnumBody(this.startNode(), {
|
|
enumName: id.name,
|
|
nameLoc: id.start
|
|
});
|
|
return this.finishNode(node, "EnumDeclaration");
|
|
}
|
|
|
|
updateContext(prevType) {
|
|
if (this.match(types.name) && this.state.value === "of" && prevType === types.name && this.input.slice(this.state.lastTokStart, this.state.lastTokEnd) === "interface") {
|
|
this.state.exprAllowed = false;
|
|
} else {
|
|
super.updateContext(prevType);
|
|
}
|
|
}
|
|
|
|
});
|
|
|
|
const entities = {
|
|
quot: "\u0022",
|
|
amp: "&",
|
|
apos: "\u0027",
|
|
lt: "<",
|
|
gt: ">",
|
|
nbsp: "\u00A0",
|
|
iexcl: "\u00A1",
|
|
cent: "\u00A2",
|
|
pound: "\u00A3",
|
|
curren: "\u00A4",
|
|
yen: "\u00A5",
|
|
brvbar: "\u00A6",
|
|
sect: "\u00A7",
|
|
uml: "\u00A8",
|
|
copy: "\u00A9",
|
|
ordf: "\u00AA",
|
|
laquo: "\u00AB",
|
|
not: "\u00AC",
|
|
shy: "\u00AD",
|
|
reg: "\u00AE",
|
|
macr: "\u00AF",
|
|
deg: "\u00B0",
|
|
plusmn: "\u00B1",
|
|
sup2: "\u00B2",
|
|
sup3: "\u00B3",
|
|
acute: "\u00B4",
|
|
micro: "\u00B5",
|
|
para: "\u00B6",
|
|
middot: "\u00B7",
|
|
cedil: "\u00B8",
|
|
sup1: "\u00B9",
|
|
ordm: "\u00BA",
|
|
raquo: "\u00BB",
|
|
frac14: "\u00BC",
|
|
frac12: "\u00BD",
|
|
frac34: "\u00BE",
|
|
iquest: "\u00BF",
|
|
Agrave: "\u00C0",
|
|
Aacute: "\u00C1",
|
|
Acirc: "\u00C2",
|
|
Atilde: "\u00C3",
|
|
Auml: "\u00C4",
|
|
Aring: "\u00C5",
|
|
AElig: "\u00C6",
|
|
Ccedil: "\u00C7",
|
|
Egrave: "\u00C8",
|
|
Eacute: "\u00C9",
|
|
Ecirc: "\u00CA",
|
|
Euml: "\u00CB",
|
|
Igrave: "\u00CC",
|
|
Iacute: "\u00CD",
|
|
Icirc: "\u00CE",
|
|
Iuml: "\u00CF",
|
|
ETH: "\u00D0",
|
|
Ntilde: "\u00D1",
|
|
Ograve: "\u00D2",
|
|
Oacute: "\u00D3",
|
|
Ocirc: "\u00D4",
|
|
Otilde: "\u00D5",
|
|
Ouml: "\u00D6",
|
|
times: "\u00D7",
|
|
Oslash: "\u00D8",
|
|
Ugrave: "\u00D9",
|
|
Uacute: "\u00DA",
|
|
Ucirc: "\u00DB",
|
|
Uuml: "\u00DC",
|
|
Yacute: "\u00DD",
|
|
THORN: "\u00DE",
|
|
szlig: "\u00DF",
|
|
agrave: "\u00E0",
|
|
aacute: "\u00E1",
|
|
acirc: "\u00E2",
|
|
atilde: "\u00E3",
|
|
auml: "\u00E4",
|
|
aring: "\u00E5",
|
|
aelig: "\u00E6",
|
|
ccedil: "\u00E7",
|
|
egrave: "\u00E8",
|
|
eacute: "\u00E9",
|
|
ecirc: "\u00EA",
|
|
euml: "\u00EB",
|
|
igrave: "\u00EC",
|
|
iacute: "\u00ED",
|
|
icirc: "\u00EE",
|
|
iuml: "\u00EF",
|
|
eth: "\u00F0",
|
|
ntilde: "\u00F1",
|
|
ograve: "\u00F2",
|
|
oacute: "\u00F3",
|
|
ocirc: "\u00F4",
|
|
otilde: "\u00F5",
|
|
ouml: "\u00F6",
|
|
divide: "\u00F7",
|
|
oslash: "\u00F8",
|
|
ugrave: "\u00F9",
|
|
uacute: "\u00FA",
|
|
ucirc: "\u00FB",
|
|
uuml: "\u00FC",
|
|
yacute: "\u00FD",
|
|
thorn: "\u00FE",
|
|
yuml: "\u00FF",
|
|
OElig: "\u0152",
|
|
oelig: "\u0153",
|
|
Scaron: "\u0160",
|
|
scaron: "\u0161",
|
|
Yuml: "\u0178",
|
|
fnof: "\u0192",
|
|
circ: "\u02C6",
|
|
tilde: "\u02DC",
|
|
Alpha: "\u0391",
|
|
Beta: "\u0392",
|
|
Gamma: "\u0393",
|
|
Delta: "\u0394",
|
|
Epsilon: "\u0395",
|
|
Zeta: "\u0396",
|
|
Eta: "\u0397",
|
|
Theta: "\u0398",
|
|
Iota: "\u0399",
|
|
Kappa: "\u039A",
|
|
Lambda: "\u039B",
|
|
Mu: "\u039C",
|
|
Nu: "\u039D",
|
|
Xi: "\u039E",
|
|
Omicron: "\u039F",
|
|
Pi: "\u03A0",
|
|
Rho: "\u03A1",
|
|
Sigma: "\u03A3",
|
|
Tau: "\u03A4",
|
|
Upsilon: "\u03A5",
|
|
Phi: "\u03A6",
|
|
Chi: "\u03A7",
|
|
Psi: "\u03A8",
|
|
Omega: "\u03A9",
|
|
alpha: "\u03B1",
|
|
beta: "\u03B2",
|
|
gamma: "\u03B3",
|
|
delta: "\u03B4",
|
|
epsilon: "\u03B5",
|
|
zeta: "\u03B6",
|
|
eta: "\u03B7",
|
|
theta: "\u03B8",
|
|
iota: "\u03B9",
|
|
kappa: "\u03BA",
|
|
lambda: "\u03BB",
|
|
mu: "\u03BC",
|
|
nu: "\u03BD",
|
|
xi: "\u03BE",
|
|
omicron: "\u03BF",
|
|
pi: "\u03C0",
|
|
rho: "\u03C1",
|
|
sigmaf: "\u03C2",
|
|
sigma: "\u03C3",
|
|
tau: "\u03C4",
|
|
upsilon: "\u03C5",
|
|
phi: "\u03C6",
|
|
chi: "\u03C7",
|
|
psi: "\u03C8",
|
|
omega: "\u03C9",
|
|
thetasym: "\u03D1",
|
|
upsih: "\u03D2",
|
|
piv: "\u03D6",
|
|
ensp: "\u2002",
|
|
emsp: "\u2003",
|
|
thinsp: "\u2009",
|
|
zwnj: "\u200C",
|
|
zwj: "\u200D",
|
|
lrm: "\u200E",
|
|
rlm: "\u200F",
|
|
ndash: "\u2013",
|
|
mdash: "\u2014",
|
|
lsquo: "\u2018",
|
|
rsquo: "\u2019",
|
|
sbquo: "\u201A",
|
|
ldquo: "\u201C",
|
|
rdquo: "\u201D",
|
|
bdquo: "\u201E",
|
|
dagger: "\u2020",
|
|
Dagger: "\u2021",
|
|
bull: "\u2022",
|
|
hellip: "\u2026",
|
|
permil: "\u2030",
|
|
prime: "\u2032",
|
|
Prime: "\u2033",
|
|
lsaquo: "\u2039",
|
|
rsaquo: "\u203A",
|
|
oline: "\u203E",
|
|
frasl: "\u2044",
|
|
euro: "\u20AC",
|
|
image: "\u2111",
|
|
weierp: "\u2118",
|
|
real: "\u211C",
|
|
trade: "\u2122",
|
|
alefsym: "\u2135",
|
|
larr: "\u2190",
|
|
uarr: "\u2191",
|
|
rarr: "\u2192",
|
|
darr: "\u2193",
|
|
harr: "\u2194",
|
|
crarr: "\u21B5",
|
|
lArr: "\u21D0",
|
|
uArr: "\u21D1",
|
|
rArr: "\u21D2",
|
|
dArr: "\u21D3",
|
|
hArr: "\u21D4",
|
|
forall: "\u2200",
|
|
part: "\u2202",
|
|
exist: "\u2203",
|
|
empty: "\u2205",
|
|
nabla: "\u2207",
|
|
isin: "\u2208",
|
|
notin: "\u2209",
|
|
ni: "\u220B",
|
|
prod: "\u220F",
|
|
sum: "\u2211",
|
|
minus: "\u2212",
|
|
lowast: "\u2217",
|
|
radic: "\u221A",
|
|
prop: "\u221D",
|
|
infin: "\u221E",
|
|
ang: "\u2220",
|
|
and: "\u2227",
|
|
or: "\u2228",
|
|
cap: "\u2229",
|
|
cup: "\u222A",
|
|
int: "\u222B",
|
|
there4: "\u2234",
|
|
sim: "\u223C",
|
|
cong: "\u2245",
|
|
asymp: "\u2248",
|
|
ne: "\u2260",
|
|
equiv: "\u2261",
|
|
le: "\u2264",
|
|
ge: "\u2265",
|
|
sub: "\u2282",
|
|
sup: "\u2283",
|
|
nsub: "\u2284",
|
|
sube: "\u2286",
|
|
supe: "\u2287",
|
|
oplus: "\u2295",
|
|
otimes: "\u2297",
|
|
perp: "\u22A5",
|
|
sdot: "\u22C5",
|
|
lceil: "\u2308",
|
|
rceil: "\u2309",
|
|
lfloor: "\u230A",
|
|
rfloor: "\u230B",
|
|
lang: "\u2329",
|
|
rang: "\u232A",
|
|
loz: "\u25CA",
|
|
spades: "\u2660",
|
|
clubs: "\u2663",
|
|
hearts: "\u2665",
|
|
diams: "\u2666"
|
|
};
|
|
|
|
const HEX_NUMBER = /^[\da-fA-F]+$/;
|
|
const DECIMAL_NUMBER = /^\d+$/;
|
|
const JsxErrors = Object.freeze({
|
|
AttributeIsEmpty: "JSX attributes must only be assigned a non-empty expression",
|
|
MissingClosingTagFragment: "Expected corresponding JSX closing tag for <>",
|
|
MissingClosingTagElement: "Expected corresponding JSX closing tag for <%0>",
|
|
UnsupportedJsxValue: "JSX value should be either an expression or a quoted JSX text",
|
|
UnterminatedJsxContent: "Unterminated JSX contents",
|
|
UnwrappedAdjacentJSXElements: "Adjacent JSX elements must be wrapped in an enclosing tag. Did you want a JSX fragment <>...</>?"
|
|
});
|
|
types$1.j_oTag = new TokContext("<tag", false);
|
|
types$1.j_cTag = new TokContext("</tag", false);
|
|
types$1.j_expr = new TokContext("<tag>...</tag>", true, true);
|
|
types.jsxName = new TokenType("jsxName");
|
|
types.jsxText = new TokenType("jsxText", {
|
|
beforeExpr: true
|
|
});
|
|
types.jsxTagStart = new TokenType("jsxTagStart", {
|
|
startsExpr: true
|
|
});
|
|
types.jsxTagEnd = new TokenType("jsxTagEnd");
|
|
|
|
types.jsxTagStart.updateContext = function () {
|
|
this.state.context.push(types$1.j_expr);
|
|
this.state.context.push(types$1.j_oTag);
|
|
this.state.exprAllowed = false;
|
|
};
|
|
|
|
types.jsxTagEnd.updateContext = function (prevType) {
|
|
const out = this.state.context.pop();
|
|
|
|
if (out === types$1.j_oTag && prevType === types.slash || out === types$1.j_cTag) {
|
|
this.state.context.pop();
|
|
this.state.exprAllowed = this.curContext() === types$1.j_expr;
|
|
} else {
|
|
this.state.exprAllowed = true;
|
|
}
|
|
};
|
|
|
|
function isFragment(object) {
|
|
return object ? object.type === "JSXOpeningFragment" || object.type === "JSXClosingFragment" : false;
|
|
}
|
|
|
|
function getQualifiedJSXName(object) {
|
|
if (object.type === "JSXIdentifier") {
|
|
return object.name;
|
|
}
|
|
|
|
if (object.type === "JSXNamespacedName") {
|
|
return object.namespace.name + ":" + object.name.name;
|
|
}
|
|
|
|
if (object.type === "JSXMemberExpression") {
|
|
return getQualifiedJSXName(object.object) + "." + getQualifiedJSXName(object.property);
|
|
}
|
|
|
|
throw new Error("Node had unexpected type: " + object.type);
|
|
}
|
|
|
|
var jsx = (superClass => class extends superClass {
|
|
jsxReadToken() {
|
|
let out = "";
|
|
let chunkStart = this.state.pos;
|
|
|
|
for (;;) {
|
|
if (this.state.pos >= this.length) {
|
|
throw this.raise(this.state.start, JsxErrors.UnterminatedJsxContent);
|
|
}
|
|
|
|
const ch = this.input.charCodeAt(this.state.pos);
|
|
|
|
switch (ch) {
|
|
case 60:
|
|
case 123:
|
|
if (this.state.pos === this.state.start) {
|
|
if (ch === 60 && this.state.exprAllowed) {
|
|
++this.state.pos;
|
|
return this.finishToken(types.jsxTagStart);
|
|
}
|
|
|
|
return super.getTokenFromCode(ch);
|
|
}
|
|
|
|
out += this.input.slice(chunkStart, this.state.pos);
|
|
return this.finishToken(types.jsxText, out);
|
|
|
|
case 38:
|
|
out += this.input.slice(chunkStart, this.state.pos);
|
|
out += this.jsxReadEntity();
|
|
chunkStart = this.state.pos;
|
|
break;
|
|
|
|
default:
|
|
if (isNewLine(ch)) {
|
|
out += this.input.slice(chunkStart, this.state.pos);
|
|
out += this.jsxReadNewLine(true);
|
|
chunkStart = this.state.pos;
|
|
} else {
|
|
++this.state.pos;
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
jsxReadNewLine(normalizeCRLF) {
|
|
const ch = this.input.charCodeAt(this.state.pos);
|
|
let out;
|
|
++this.state.pos;
|
|
|
|
if (ch === 13 && this.input.charCodeAt(this.state.pos) === 10) {
|
|
++this.state.pos;
|
|
out = normalizeCRLF ? "\n" : "\r\n";
|
|
} else {
|
|
out = String.fromCharCode(ch);
|
|
}
|
|
|
|
++this.state.curLine;
|
|
this.state.lineStart = this.state.pos;
|
|
return out;
|
|
}
|
|
|
|
jsxReadString(quote) {
|
|
let out = "";
|
|
let chunkStart = ++this.state.pos;
|
|
|
|
for (;;) {
|
|
if (this.state.pos >= this.length) {
|
|
throw this.raise(this.state.start, ErrorMessages.UnterminatedString);
|
|
}
|
|
|
|
const ch = this.input.charCodeAt(this.state.pos);
|
|
if (ch === quote) break;
|
|
|
|
if (ch === 38) {
|
|
out += this.input.slice(chunkStart, this.state.pos);
|
|
out += this.jsxReadEntity();
|
|
chunkStart = this.state.pos;
|
|
} else if (isNewLine(ch)) {
|
|
out += this.input.slice(chunkStart, this.state.pos);
|
|
out += this.jsxReadNewLine(false);
|
|
chunkStart = this.state.pos;
|
|
} else {
|
|
++this.state.pos;
|
|
}
|
|
}
|
|
|
|
out += this.input.slice(chunkStart, this.state.pos++);
|
|
return this.finishToken(types.string, out);
|
|
}
|
|
|
|
jsxReadEntity() {
|
|
let str = "";
|
|
let count = 0;
|
|
let entity;
|
|
let ch = this.input[this.state.pos];
|
|
const startPos = ++this.state.pos;
|
|
|
|
while (this.state.pos < this.length && count++ < 10) {
|
|
ch = this.input[this.state.pos++];
|
|
|
|
if (ch === ";") {
|
|
if (str[0] === "#") {
|
|
if (str[1] === "x") {
|
|
str = str.substr(2);
|
|
|
|
if (HEX_NUMBER.test(str)) {
|
|
entity = String.fromCodePoint(parseInt(str, 16));
|
|
}
|
|
} else {
|
|
str = str.substr(1);
|
|
|
|
if (DECIMAL_NUMBER.test(str)) {
|
|
entity = String.fromCodePoint(parseInt(str, 10));
|
|
}
|
|
}
|
|
} else {
|
|
entity = entities[str];
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
str += ch;
|
|
}
|
|
|
|
if (!entity) {
|
|
this.state.pos = startPos;
|
|
return "&";
|
|
}
|
|
|
|
return entity;
|
|
}
|
|
|
|
jsxReadWord() {
|
|
let ch;
|
|
const start = this.state.pos;
|
|
|
|
do {
|
|
ch = this.input.charCodeAt(++this.state.pos);
|
|
} while (isIdentifierChar(ch) || ch === 45);
|
|
|
|
return this.finishToken(types.jsxName, this.input.slice(start, this.state.pos));
|
|
}
|
|
|
|
jsxParseIdentifier() {
|
|
const node = this.startNode();
|
|
|
|
if (this.match(types.jsxName)) {
|
|
node.name = this.state.value;
|
|
} else if (this.state.type.keyword) {
|
|
node.name = this.state.type.keyword;
|
|
} else {
|
|
this.unexpected();
|
|
}
|
|
|
|
this.next();
|
|
return this.finishNode(node, "JSXIdentifier");
|
|
}
|
|
|
|
jsxParseNamespacedName() {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
const name = this.jsxParseIdentifier();
|
|
if (!this.eat(types.colon)) return name;
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.namespace = name;
|
|
node.name = this.jsxParseIdentifier();
|
|
return this.finishNode(node, "JSXNamespacedName");
|
|
}
|
|
|
|
jsxParseElementName() {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
let node = this.jsxParseNamespacedName();
|
|
|
|
if (node.type === "JSXNamespacedName") {
|
|
return node;
|
|
}
|
|
|
|
while (this.eat(types.dot)) {
|
|
const newNode = this.startNodeAt(startPos, startLoc);
|
|
newNode.object = node;
|
|
newNode.property = this.jsxParseIdentifier();
|
|
node = this.finishNode(newNode, "JSXMemberExpression");
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
jsxParseAttributeValue() {
|
|
let node;
|
|
|
|
switch (this.state.type) {
|
|
case types.braceL:
|
|
node = this.startNode();
|
|
this.next();
|
|
node = this.jsxParseExpressionContainer(node);
|
|
|
|
if (node.expression.type === "JSXEmptyExpression") {
|
|
this.raise(node.start, JsxErrors.AttributeIsEmpty);
|
|
}
|
|
|
|
return node;
|
|
|
|
case types.jsxTagStart:
|
|
case types.string:
|
|
return this.parseExprAtom();
|
|
|
|
default:
|
|
throw this.raise(this.state.start, JsxErrors.UnsupportedJsxValue);
|
|
}
|
|
}
|
|
|
|
jsxParseEmptyExpression() {
|
|
const node = this.startNodeAt(this.state.lastTokEnd, this.state.lastTokEndLoc);
|
|
return this.finishNodeAt(node, "JSXEmptyExpression", this.state.start, this.state.startLoc);
|
|
}
|
|
|
|
jsxParseSpreadChild(node) {
|
|
this.next();
|
|
node.expression = this.parseExpression();
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "JSXSpreadChild");
|
|
}
|
|
|
|
jsxParseExpressionContainer(node) {
|
|
if (this.match(types.braceR)) {
|
|
node.expression = this.jsxParseEmptyExpression();
|
|
} else {
|
|
node.expression = this.parseExpression();
|
|
}
|
|
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "JSXExpressionContainer");
|
|
}
|
|
|
|
jsxParseAttribute() {
|
|
const node = this.startNode();
|
|
|
|
if (this.eat(types.braceL)) {
|
|
this.expect(types.ellipsis);
|
|
node.argument = this.parseMaybeAssign();
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "JSXSpreadAttribute");
|
|
}
|
|
|
|
node.name = this.jsxParseNamespacedName();
|
|
node.value = this.eat(types.eq) ? this.jsxParseAttributeValue() : null;
|
|
return this.finishNode(node, "JSXAttribute");
|
|
}
|
|
|
|
jsxParseOpeningElementAt(startPos, startLoc) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
|
|
if (this.match(types.jsxTagEnd)) {
|
|
this.expect(types.jsxTagEnd);
|
|
return this.finishNode(node, "JSXOpeningFragment");
|
|
}
|
|
|
|
node.name = this.jsxParseElementName();
|
|
return this.jsxParseOpeningElementAfterName(node);
|
|
}
|
|
|
|
jsxParseOpeningElementAfterName(node) {
|
|
const attributes = [];
|
|
|
|
while (!this.match(types.slash) && !this.match(types.jsxTagEnd)) {
|
|
attributes.push(this.jsxParseAttribute());
|
|
}
|
|
|
|
node.attributes = attributes;
|
|
node.selfClosing = this.eat(types.slash);
|
|
this.expect(types.jsxTagEnd);
|
|
return this.finishNode(node, "JSXOpeningElement");
|
|
}
|
|
|
|
jsxParseClosingElementAt(startPos, startLoc) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
|
|
if (this.match(types.jsxTagEnd)) {
|
|
this.expect(types.jsxTagEnd);
|
|
return this.finishNode(node, "JSXClosingFragment");
|
|
}
|
|
|
|
node.name = this.jsxParseElementName();
|
|
this.expect(types.jsxTagEnd);
|
|
return this.finishNode(node, "JSXClosingElement");
|
|
}
|
|
|
|
jsxParseElementAt(startPos, startLoc) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
const children = [];
|
|
const openingElement = this.jsxParseOpeningElementAt(startPos, startLoc);
|
|
let closingElement = null;
|
|
|
|
if (!openingElement.selfClosing) {
|
|
contents: for (;;) {
|
|
switch (this.state.type) {
|
|
case types.jsxTagStart:
|
|
startPos = this.state.start;
|
|
startLoc = this.state.startLoc;
|
|
this.next();
|
|
|
|
if (this.eat(types.slash)) {
|
|
closingElement = this.jsxParseClosingElementAt(startPos, startLoc);
|
|
break contents;
|
|
}
|
|
|
|
children.push(this.jsxParseElementAt(startPos, startLoc));
|
|
break;
|
|
|
|
case types.jsxText:
|
|
children.push(this.parseExprAtom());
|
|
break;
|
|
|
|
case types.braceL:
|
|
{
|
|
const node = this.startNode();
|
|
this.next();
|
|
|
|
if (this.match(types.ellipsis)) {
|
|
children.push(this.jsxParseSpreadChild(node));
|
|
} else {
|
|
children.push(this.jsxParseExpressionContainer(node));
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
throw this.unexpected();
|
|
}
|
|
}
|
|
|
|
if (isFragment(openingElement) && !isFragment(closingElement)) {
|
|
this.raise(closingElement.start, JsxErrors.MissingClosingTagFragment);
|
|
} else if (!isFragment(openingElement) && isFragment(closingElement)) {
|
|
this.raise(closingElement.start, JsxErrors.MissingClosingTagElement, getQualifiedJSXName(openingElement.name));
|
|
} else if (!isFragment(openingElement) && !isFragment(closingElement)) {
|
|
if (getQualifiedJSXName(closingElement.name) !== getQualifiedJSXName(openingElement.name)) {
|
|
this.raise(closingElement.start, JsxErrors.MissingClosingTagElement, getQualifiedJSXName(openingElement.name));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (isFragment(openingElement)) {
|
|
node.openingFragment = openingElement;
|
|
node.closingFragment = closingElement;
|
|
} else {
|
|
node.openingElement = openingElement;
|
|
node.closingElement = closingElement;
|
|
}
|
|
|
|
node.children = children;
|
|
|
|
if (this.isRelational("<")) {
|
|
throw this.raise(this.state.start, JsxErrors.UnwrappedAdjacentJSXElements);
|
|
}
|
|
|
|
return isFragment(openingElement) ? this.finishNode(node, "JSXFragment") : this.finishNode(node, "JSXElement");
|
|
}
|
|
|
|
jsxParseElement() {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
this.next();
|
|
return this.jsxParseElementAt(startPos, startLoc);
|
|
}
|
|
|
|
parseExprAtom(refExpressionErrors) {
|
|
if (this.match(types.jsxText)) {
|
|
return this.parseLiteral(this.state.value, "JSXText");
|
|
} else if (this.match(types.jsxTagStart)) {
|
|
return this.jsxParseElement();
|
|
} else if (this.isRelational("<") && this.input.charCodeAt(this.state.pos) !== 33) {
|
|
this.finishToken(types.jsxTagStart);
|
|
return this.jsxParseElement();
|
|
} else {
|
|
return super.parseExprAtom(refExpressionErrors);
|
|
}
|
|
}
|
|
|
|
getTokenFromCode(code) {
|
|
if (this.state.inPropertyName) return super.getTokenFromCode(code);
|
|
const context = this.curContext();
|
|
|
|
if (context === types$1.j_expr) {
|
|
return this.jsxReadToken();
|
|
}
|
|
|
|
if (context === types$1.j_oTag || context === types$1.j_cTag) {
|
|
if (isIdentifierStart(code)) {
|
|
return this.jsxReadWord();
|
|
}
|
|
|
|
if (code === 62) {
|
|
++this.state.pos;
|
|
return this.finishToken(types.jsxTagEnd);
|
|
}
|
|
|
|
if ((code === 34 || code === 39) && context === types$1.j_oTag) {
|
|
return this.jsxReadString(code);
|
|
}
|
|
}
|
|
|
|
if (code === 60 && this.state.exprAllowed && this.input.charCodeAt(this.state.pos + 1) !== 33) {
|
|
++this.state.pos;
|
|
return this.finishToken(types.jsxTagStart);
|
|
}
|
|
|
|
return super.getTokenFromCode(code);
|
|
}
|
|
|
|
updateContext(prevType) {
|
|
if (this.match(types.braceL)) {
|
|
const curContext = this.curContext();
|
|
|
|
if (curContext === types$1.j_oTag) {
|
|
this.state.context.push(types$1.braceExpression);
|
|
} else if (curContext === types$1.j_expr) {
|
|
this.state.context.push(types$1.templateQuasi);
|
|
} else {
|
|
super.updateContext(prevType);
|
|
}
|
|
|
|
this.state.exprAllowed = true;
|
|
} else if (this.match(types.slash) && prevType === types.jsxTagStart) {
|
|
this.state.context.length -= 2;
|
|
this.state.context.push(types$1.j_cTag);
|
|
this.state.exprAllowed = false;
|
|
} else {
|
|
return super.updateContext(prevType);
|
|
}
|
|
}
|
|
|
|
});
|
|
|
|
class Scope {
|
|
constructor(flags) {
|
|
this.var = [];
|
|
this.lexical = [];
|
|
this.functions = [];
|
|
this.flags = flags;
|
|
}
|
|
|
|
}
|
|
class ScopeHandler {
|
|
constructor(raise, inModule) {
|
|
this.scopeStack = [];
|
|
this.undefinedExports = new Map();
|
|
this.undefinedPrivateNames = new Map();
|
|
this.raise = raise;
|
|
this.inModule = inModule;
|
|
}
|
|
|
|
get inFunction() {
|
|
return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0;
|
|
}
|
|
|
|
get allowSuper() {
|
|
return (this.currentThisScope().flags & SCOPE_SUPER) > 0;
|
|
}
|
|
|
|
get allowDirectSuper() {
|
|
return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0;
|
|
}
|
|
|
|
get inClass() {
|
|
return (this.currentThisScope().flags & SCOPE_CLASS) > 0;
|
|
}
|
|
|
|
get inNonArrowFunction() {
|
|
return (this.currentThisScope().flags & SCOPE_FUNCTION) > 0;
|
|
}
|
|
|
|
get treatFunctionsAsVar() {
|
|
return this.treatFunctionsAsVarInScope(this.currentScope());
|
|
}
|
|
|
|
createScope(flags) {
|
|
return new Scope(flags);
|
|
}
|
|
|
|
enter(flags) {
|
|
this.scopeStack.push(this.createScope(flags));
|
|
}
|
|
|
|
exit() {
|
|
this.scopeStack.pop();
|
|
}
|
|
|
|
treatFunctionsAsVarInScope(scope) {
|
|
return !!(scope.flags & SCOPE_FUNCTION || !this.inModule && scope.flags & SCOPE_PROGRAM);
|
|
}
|
|
|
|
declareName(name, bindingType, pos) {
|
|
let scope = this.currentScope();
|
|
|
|
if (bindingType & BIND_SCOPE_LEXICAL || bindingType & BIND_SCOPE_FUNCTION) {
|
|
this.checkRedeclarationInScope(scope, name, bindingType, pos);
|
|
|
|
if (bindingType & BIND_SCOPE_FUNCTION) {
|
|
scope.functions.push(name);
|
|
} else {
|
|
scope.lexical.push(name);
|
|
}
|
|
|
|
if (bindingType & BIND_SCOPE_LEXICAL) {
|
|
this.maybeExportDefined(scope, name);
|
|
}
|
|
} else if (bindingType & BIND_SCOPE_VAR) {
|
|
for (let i = this.scopeStack.length - 1; i >= 0; --i) {
|
|
scope = this.scopeStack[i];
|
|
this.checkRedeclarationInScope(scope, name, bindingType, pos);
|
|
scope.var.push(name);
|
|
this.maybeExportDefined(scope, name);
|
|
if (scope.flags & SCOPE_VAR) break;
|
|
}
|
|
}
|
|
|
|
if (this.inModule && scope.flags & SCOPE_PROGRAM) {
|
|
this.undefinedExports.delete(name);
|
|
}
|
|
}
|
|
|
|
maybeExportDefined(scope, name) {
|
|
if (this.inModule && scope.flags & SCOPE_PROGRAM) {
|
|
this.undefinedExports.delete(name);
|
|
}
|
|
}
|
|
|
|
checkRedeclarationInScope(scope, name, bindingType, pos) {
|
|
if (this.isRedeclaredInScope(scope, name, bindingType)) {
|
|
this.raise(pos, ErrorMessages.VarRedeclaration, name);
|
|
}
|
|
}
|
|
|
|
isRedeclaredInScope(scope, name, bindingType) {
|
|
if (!(bindingType & BIND_KIND_VALUE)) return false;
|
|
|
|
if (bindingType & BIND_SCOPE_LEXICAL) {
|
|
return scope.lexical.indexOf(name) > -1 || scope.functions.indexOf(name) > -1 || scope.var.indexOf(name) > -1;
|
|
}
|
|
|
|
if (bindingType & BIND_SCOPE_FUNCTION) {
|
|
return scope.lexical.indexOf(name) > -1 || !this.treatFunctionsAsVarInScope(scope) && scope.var.indexOf(name) > -1;
|
|
}
|
|
|
|
return scope.lexical.indexOf(name) > -1 && !(scope.flags & SCOPE_SIMPLE_CATCH && scope.lexical[0] === name) || !this.treatFunctionsAsVarInScope(scope) && scope.functions.indexOf(name) > -1;
|
|
}
|
|
|
|
checkLocalExport(id) {
|
|
if (this.scopeStack[0].lexical.indexOf(id.name) === -1 && this.scopeStack[0].var.indexOf(id.name) === -1 && this.scopeStack[0].functions.indexOf(id.name) === -1) {
|
|
this.undefinedExports.set(id.name, id.start);
|
|
}
|
|
}
|
|
|
|
currentScope() {
|
|
return this.scopeStack[this.scopeStack.length - 1];
|
|
}
|
|
|
|
currentVarScope() {
|
|
for (let i = this.scopeStack.length - 1;; i--) {
|
|
const scope = this.scopeStack[i];
|
|
|
|
if (scope.flags & SCOPE_VAR) {
|
|
return scope;
|
|
}
|
|
}
|
|
}
|
|
|
|
currentThisScope() {
|
|
for (let i = this.scopeStack.length - 1;; i--) {
|
|
const scope = this.scopeStack[i];
|
|
|
|
if ((scope.flags & SCOPE_VAR || scope.flags & SCOPE_CLASS) && !(scope.flags & SCOPE_ARROW)) {
|
|
return scope;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
class TypeScriptScope extends Scope {
|
|
constructor(...args) {
|
|
super(...args);
|
|
this.types = [];
|
|
this.enums = [];
|
|
this.constEnums = [];
|
|
this.classes = [];
|
|
this.exportOnlyBindings = [];
|
|
}
|
|
|
|
}
|
|
|
|
class TypeScriptScopeHandler extends ScopeHandler {
|
|
createScope(flags) {
|
|
return new TypeScriptScope(flags);
|
|
}
|
|
|
|
declareName(name, bindingType, pos) {
|
|
const scope = this.currentScope();
|
|
|
|
if (bindingType & BIND_FLAGS_TS_EXPORT_ONLY) {
|
|
this.maybeExportDefined(scope, name);
|
|
scope.exportOnlyBindings.push(name);
|
|
return;
|
|
}
|
|
|
|
super.declareName(...arguments);
|
|
|
|
if (bindingType & BIND_KIND_TYPE) {
|
|
if (!(bindingType & BIND_KIND_VALUE)) {
|
|
this.checkRedeclarationInScope(scope, name, bindingType, pos);
|
|
this.maybeExportDefined(scope, name);
|
|
}
|
|
|
|
scope.types.push(name);
|
|
}
|
|
|
|
if (bindingType & BIND_FLAGS_TS_ENUM) scope.enums.push(name);
|
|
if (bindingType & BIND_FLAGS_TS_CONST_ENUM) scope.constEnums.push(name);
|
|
if (bindingType & BIND_FLAGS_CLASS) scope.classes.push(name);
|
|
}
|
|
|
|
isRedeclaredInScope(scope, name, bindingType) {
|
|
if (scope.enums.indexOf(name) > -1) {
|
|
if (bindingType & BIND_FLAGS_TS_ENUM) {
|
|
const isConst = !!(bindingType & BIND_FLAGS_TS_CONST_ENUM);
|
|
const wasConst = scope.constEnums.indexOf(name) > -1;
|
|
return isConst !== wasConst;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
if (bindingType & BIND_FLAGS_CLASS && scope.classes.indexOf(name) > -1) {
|
|
if (scope.lexical.indexOf(name) > -1) {
|
|
return !!(bindingType & BIND_KIND_VALUE);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (bindingType & BIND_KIND_TYPE && scope.types.indexOf(name) > -1) {
|
|
return true;
|
|
}
|
|
|
|
return super.isRedeclaredInScope(...arguments);
|
|
}
|
|
|
|
checkLocalExport(id) {
|
|
if (this.scopeStack[0].types.indexOf(id.name) === -1 && this.scopeStack[0].exportOnlyBindings.indexOf(id.name) === -1) {
|
|
super.checkLocalExport(id);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
const PARAM = 0b000,
|
|
PARAM_YIELD = 0b001,
|
|
PARAM_AWAIT = 0b010,
|
|
PARAM_RETURN = 0b100;
|
|
class ProductionParameterHandler {
|
|
constructor() {
|
|
this.stacks = [];
|
|
}
|
|
|
|
enter(flags) {
|
|
this.stacks.push(flags);
|
|
}
|
|
|
|
exit() {
|
|
this.stacks.pop();
|
|
}
|
|
|
|
currentFlags() {
|
|
return this.stacks[this.stacks.length - 1];
|
|
}
|
|
|
|
get hasAwait() {
|
|
return (this.currentFlags() & PARAM_AWAIT) > 0;
|
|
}
|
|
|
|
get hasYield() {
|
|
return (this.currentFlags() & PARAM_YIELD) > 0;
|
|
}
|
|
|
|
get hasReturn() {
|
|
return (this.currentFlags() & PARAM_RETURN) > 0;
|
|
}
|
|
|
|
}
|
|
function functionFlags(isAsync, isGenerator) {
|
|
return (isAsync ? PARAM_AWAIT : 0) | (isGenerator ? PARAM_YIELD : 0);
|
|
}
|
|
|
|
function nonNull(x) {
|
|
if (x == null) {
|
|
throw new Error(`Unexpected ${x} value.`);
|
|
}
|
|
|
|
return x;
|
|
}
|
|
|
|
function assert(x) {
|
|
if (!x) {
|
|
throw new Error("Assert fail");
|
|
}
|
|
}
|
|
|
|
const TSErrors = Object.freeze({
|
|
ClassMethodHasDeclare: "Class methods cannot have the 'declare' modifier",
|
|
ClassMethodHasReadonly: "Class methods cannot have the 'readonly' modifier",
|
|
DeclareClassFieldHasInitializer: "'declare' class fields cannot have an initializer",
|
|
DuplicateModifier: "Duplicate modifier: '%0'",
|
|
EmptyHeritageClauseType: "'%0' list cannot be empty.",
|
|
IndexSignatureHasAbstract: "Index signatures cannot have the 'abstract' modifier",
|
|
IndexSignatureHasAccessibility: "Index signatures cannot have an accessibility modifier ('%0')",
|
|
IndexSignatureHasStatic: "Index signatures cannot have the 'static' modifier",
|
|
OptionalTypeBeforeRequired: "A required element cannot follow an optional element.",
|
|
PatternIsOptional: "A binding pattern parameter cannot be optional in an implementation signature.",
|
|
PrivateElementHasAbstract: "Private elements cannot have the 'abstract' modifier.",
|
|
PrivateElementHasAccessibility: "Private elements cannot have an accessibility modifier ('%0')",
|
|
TemplateTypeHasSubstitution: "Template literal types cannot have any substitution",
|
|
TypeAnnotationAfterAssign: "Type annotations must come before default assignments, e.g. instead of `age = 25: number` use `age: number = 25`",
|
|
UnexpectedReadonly: "'readonly' type modifier is only permitted on array and tuple literal types.",
|
|
UnexpectedTypeAnnotation: "Did not expect a type annotation here.",
|
|
UnexpectedTypeCastInParameter: "Unexpected type cast in parameter position.",
|
|
UnsupportedImportTypeArgument: "Argument in a type import must be a string literal",
|
|
UnsupportedParameterPropertyKind: "A parameter property may not be declared using a binding pattern.",
|
|
UnsupportedSignatureParameterKind: "Name in a signature must be an Identifier, ObjectPattern or ArrayPattern, instead got %0"
|
|
});
|
|
|
|
function keywordTypeFromName(value) {
|
|
switch (value) {
|
|
case "any":
|
|
return "TSAnyKeyword";
|
|
|
|
case "boolean":
|
|
return "TSBooleanKeyword";
|
|
|
|
case "bigint":
|
|
return "TSBigIntKeyword";
|
|
|
|
case "never":
|
|
return "TSNeverKeyword";
|
|
|
|
case "number":
|
|
return "TSNumberKeyword";
|
|
|
|
case "object":
|
|
return "TSObjectKeyword";
|
|
|
|
case "string":
|
|
return "TSStringKeyword";
|
|
|
|
case "symbol":
|
|
return "TSSymbolKeyword";
|
|
|
|
case "undefined":
|
|
return "TSUndefinedKeyword";
|
|
|
|
case "unknown":
|
|
return "TSUnknownKeyword";
|
|
|
|
default:
|
|
return undefined;
|
|
}
|
|
}
|
|
|
|
var typescript = (superClass => class extends superClass {
|
|
getScopeHandler() {
|
|
return TypeScriptScopeHandler;
|
|
}
|
|
|
|
tsIsIdentifier() {
|
|
return this.match(types.name);
|
|
}
|
|
|
|
tsNextTokenCanFollowModifier() {
|
|
this.next();
|
|
return !this.hasPrecedingLineBreak() && !this.match(types.parenL) && !this.match(types.parenR) && !this.match(types.colon) && !this.match(types.eq) && !this.match(types.question) && !this.match(types.bang);
|
|
}
|
|
|
|
tsParseModifier(allowedModifiers) {
|
|
if (!this.match(types.name)) {
|
|
return undefined;
|
|
}
|
|
|
|
const modifier = this.state.value;
|
|
|
|
if (allowedModifiers.indexOf(modifier) !== -1 && this.tsTryParse(this.tsNextTokenCanFollowModifier.bind(this))) {
|
|
return modifier;
|
|
}
|
|
|
|
return undefined;
|
|
}
|
|
|
|
tsParseModifiers(modified, allowedModifiers) {
|
|
for (;;) {
|
|
const startPos = this.state.start;
|
|
const modifier = this.tsParseModifier(allowedModifiers);
|
|
if (!modifier) break;
|
|
|
|
if (Object.hasOwnProperty.call(modified, modifier)) {
|
|
this.raise(startPos, TSErrors.DuplicateModifier, modifier);
|
|
}
|
|
|
|
modified[modifier] = true;
|
|
}
|
|
}
|
|
|
|
tsIsListTerminator(kind) {
|
|
switch (kind) {
|
|
case "EnumMembers":
|
|
case "TypeMembers":
|
|
return this.match(types.braceR);
|
|
|
|
case "HeritageClauseElement":
|
|
return this.match(types.braceL);
|
|
|
|
case "TupleElementTypes":
|
|
return this.match(types.bracketR);
|
|
|
|
case "TypeParametersOrArguments":
|
|
return this.isRelational(">");
|
|
}
|
|
|
|
throw new Error("Unreachable");
|
|
}
|
|
|
|
tsParseList(kind, parseElement) {
|
|
const result = [];
|
|
|
|
while (!this.tsIsListTerminator(kind)) {
|
|
result.push(parseElement());
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
tsParseDelimitedList(kind, parseElement) {
|
|
return nonNull(this.tsParseDelimitedListWorker(kind, parseElement, true));
|
|
}
|
|
|
|
tsParseDelimitedListWorker(kind, parseElement, expectSuccess) {
|
|
const result = [];
|
|
|
|
for (;;) {
|
|
if (this.tsIsListTerminator(kind)) {
|
|
break;
|
|
}
|
|
|
|
const element = parseElement();
|
|
|
|
if (element == null) {
|
|
return undefined;
|
|
}
|
|
|
|
result.push(element);
|
|
|
|
if (this.eat(types.comma)) {
|
|
continue;
|
|
}
|
|
|
|
if (this.tsIsListTerminator(kind)) {
|
|
break;
|
|
}
|
|
|
|
if (expectSuccess) {
|
|
this.expect(types.comma);
|
|
}
|
|
|
|
return undefined;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
tsParseBracketedList(kind, parseElement, bracket, skipFirstToken) {
|
|
if (!skipFirstToken) {
|
|
if (bracket) {
|
|
this.expect(types.bracketL);
|
|
} else {
|
|
this.expectRelational("<");
|
|
}
|
|
}
|
|
|
|
const result = this.tsParseDelimitedList(kind, parseElement);
|
|
|
|
if (bracket) {
|
|
this.expect(types.bracketR);
|
|
} else {
|
|
this.expectRelational(">");
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
tsParseImportType() {
|
|
const node = this.startNode();
|
|
this.expect(types._import);
|
|
this.expect(types.parenL);
|
|
|
|
if (!this.match(types.string)) {
|
|
this.raise(this.state.start, TSErrors.UnsupportedImportTypeArgument);
|
|
}
|
|
|
|
node.argument = this.parseExprAtom();
|
|
this.expect(types.parenR);
|
|
|
|
if (this.eat(types.dot)) {
|
|
node.qualifier = this.tsParseEntityName(true);
|
|
}
|
|
|
|
if (this.isRelational("<")) {
|
|
node.typeParameters = this.tsParseTypeArguments();
|
|
}
|
|
|
|
return this.finishNode(node, "TSImportType");
|
|
}
|
|
|
|
tsParseEntityName(allowReservedWords) {
|
|
let entity = this.parseIdentifier();
|
|
|
|
while (this.eat(types.dot)) {
|
|
const node = this.startNodeAtNode(entity);
|
|
node.left = entity;
|
|
node.right = this.parseIdentifier(allowReservedWords);
|
|
entity = this.finishNode(node, "TSQualifiedName");
|
|
}
|
|
|
|
return entity;
|
|
}
|
|
|
|
tsParseTypeReference() {
|
|
const node = this.startNode();
|
|
node.typeName = this.tsParseEntityName(false);
|
|
|
|
if (!this.hasPrecedingLineBreak() && this.isRelational("<")) {
|
|
node.typeParameters = this.tsParseTypeArguments();
|
|
}
|
|
|
|
return this.finishNode(node, "TSTypeReference");
|
|
}
|
|
|
|
tsParseThisTypePredicate(lhs) {
|
|
this.next();
|
|
const node = this.startNodeAtNode(lhs);
|
|
node.parameterName = lhs;
|
|
node.typeAnnotation = this.tsParseTypeAnnotation(false);
|
|
return this.finishNode(node, "TSTypePredicate");
|
|
}
|
|
|
|
tsParseThisTypeNode() {
|
|
const node = this.startNode();
|
|
this.next();
|
|
return this.finishNode(node, "TSThisType");
|
|
}
|
|
|
|
tsParseTypeQuery() {
|
|
const node = this.startNode();
|
|
this.expect(types._typeof);
|
|
|
|
if (this.match(types._import)) {
|
|
node.exprName = this.tsParseImportType();
|
|
} else {
|
|
node.exprName = this.tsParseEntityName(true);
|
|
}
|
|
|
|
return this.finishNode(node, "TSTypeQuery");
|
|
}
|
|
|
|
tsParseTypeParameter() {
|
|
const node = this.startNode();
|
|
node.name = this.parseIdentifierName(node.start);
|
|
node.constraint = this.tsEatThenParseType(types._extends);
|
|
node.default = this.tsEatThenParseType(types.eq);
|
|
return this.finishNode(node, "TSTypeParameter");
|
|
}
|
|
|
|
tsTryParseTypeParameters() {
|
|
if (this.isRelational("<")) {
|
|
return this.tsParseTypeParameters();
|
|
}
|
|
}
|
|
|
|
tsParseTypeParameters() {
|
|
const node = this.startNode();
|
|
|
|
if (this.isRelational("<") || this.match(types.jsxTagStart)) {
|
|
this.next();
|
|
} else {
|
|
this.unexpected();
|
|
}
|
|
|
|
node.params = this.tsParseBracketedList("TypeParametersOrArguments", this.tsParseTypeParameter.bind(this), false, true);
|
|
return this.finishNode(node, "TSTypeParameterDeclaration");
|
|
}
|
|
|
|
tsTryNextParseConstantContext() {
|
|
if (this.lookahead().type === types._const) {
|
|
this.next();
|
|
return this.tsParseTypeReference();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
tsFillSignature(returnToken, signature) {
|
|
const returnTokenRequired = returnToken === types.arrow;
|
|
signature.typeParameters = this.tsTryParseTypeParameters();
|
|
this.expect(types.parenL);
|
|
signature.parameters = this.tsParseBindingListForSignature();
|
|
|
|
if (returnTokenRequired) {
|
|
signature.typeAnnotation = this.tsParseTypeOrTypePredicateAnnotation(returnToken);
|
|
} else if (this.match(returnToken)) {
|
|
signature.typeAnnotation = this.tsParseTypeOrTypePredicateAnnotation(returnToken);
|
|
}
|
|
}
|
|
|
|
tsParseBindingListForSignature() {
|
|
return this.parseBindingList(types.parenR, 41).map(pattern => {
|
|
if (pattern.type !== "Identifier" && pattern.type !== "RestElement" && pattern.type !== "ObjectPattern" && pattern.type !== "ArrayPattern") {
|
|
this.raise(pattern.start, TSErrors.UnsupportedSignatureParameterKind, pattern.type);
|
|
}
|
|
|
|
return pattern;
|
|
});
|
|
}
|
|
|
|
tsParseTypeMemberSemicolon() {
|
|
if (!this.eat(types.comma)) {
|
|
this.semicolon();
|
|
}
|
|
}
|
|
|
|
tsParseSignatureMember(kind, node) {
|
|
this.tsFillSignature(types.colon, node);
|
|
this.tsParseTypeMemberSemicolon();
|
|
return this.finishNode(node, kind);
|
|
}
|
|
|
|
tsIsUnambiguouslyIndexSignature() {
|
|
this.next();
|
|
return this.eat(types.name) && this.match(types.colon);
|
|
}
|
|
|
|
tsTryParseIndexSignature(node) {
|
|
if (!(this.match(types.bracketL) && this.tsLookAhead(this.tsIsUnambiguouslyIndexSignature.bind(this)))) {
|
|
return undefined;
|
|
}
|
|
|
|
this.expect(types.bracketL);
|
|
const id = this.parseIdentifier();
|
|
id.typeAnnotation = this.tsParseTypeAnnotation();
|
|
this.resetEndLocation(id);
|
|
this.expect(types.bracketR);
|
|
node.parameters = [id];
|
|
const type = this.tsTryParseTypeAnnotation();
|
|
if (type) node.typeAnnotation = type;
|
|
this.tsParseTypeMemberSemicolon();
|
|
return this.finishNode(node, "TSIndexSignature");
|
|
}
|
|
|
|
tsParsePropertyOrMethodSignature(node, readonly) {
|
|
if (this.eat(types.question)) node.optional = true;
|
|
const nodeAny = node;
|
|
|
|
if (!readonly && (this.match(types.parenL) || this.isRelational("<"))) {
|
|
const method = nodeAny;
|
|
this.tsFillSignature(types.colon, method);
|
|
this.tsParseTypeMemberSemicolon();
|
|
return this.finishNode(method, "TSMethodSignature");
|
|
} else {
|
|
const property = nodeAny;
|
|
if (readonly) property.readonly = true;
|
|
const type = this.tsTryParseTypeAnnotation();
|
|
if (type) property.typeAnnotation = type;
|
|
this.tsParseTypeMemberSemicolon();
|
|
return this.finishNode(property, "TSPropertySignature");
|
|
}
|
|
}
|
|
|
|
tsParseTypeMember() {
|
|
const node = this.startNode();
|
|
|
|
if (this.match(types.parenL) || this.isRelational("<")) {
|
|
return this.tsParseSignatureMember("TSCallSignatureDeclaration", node);
|
|
}
|
|
|
|
if (this.match(types._new)) {
|
|
const id = this.startNode();
|
|
this.next();
|
|
|
|
if (this.match(types.parenL) || this.isRelational("<")) {
|
|
return this.tsParseSignatureMember("TSConstructSignatureDeclaration", node);
|
|
} else {
|
|
node.key = this.createIdentifier(id, "new");
|
|
return this.tsParsePropertyOrMethodSignature(node, false);
|
|
}
|
|
}
|
|
|
|
const readonly = !!this.tsParseModifier(["readonly"]);
|
|
const idx = this.tsTryParseIndexSignature(node);
|
|
|
|
if (idx) {
|
|
if (readonly) node.readonly = true;
|
|
return idx;
|
|
}
|
|
|
|
this.parsePropertyName(node, false);
|
|
return this.tsParsePropertyOrMethodSignature(node, readonly);
|
|
}
|
|
|
|
tsParseTypeLiteral() {
|
|
const node = this.startNode();
|
|
node.members = this.tsParseObjectTypeMembers();
|
|
return this.finishNode(node, "TSTypeLiteral");
|
|
}
|
|
|
|
tsParseObjectTypeMembers() {
|
|
this.expect(types.braceL);
|
|
const members = this.tsParseList("TypeMembers", this.tsParseTypeMember.bind(this));
|
|
this.expect(types.braceR);
|
|
return members;
|
|
}
|
|
|
|
tsIsStartOfMappedType() {
|
|
this.next();
|
|
|
|
if (this.eat(types.plusMin)) {
|
|
return this.isContextual("readonly");
|
|
}
|
|
|
|
if (this.isContextual("readonly")) {
|
|
this.next();
|
|
}
|
|
|
|
if (!this.match(types.bracketL)) {
|
|
return false;
|
|
}
|
|
|
|
this.next();
|
|
|
|
if (!this.tsIsIdentifier()) {
|
|
return false;
|
|
}
|
|
|
|
this.next();
|
|
return this.match(types._in);
|
|
}
|
|
|
|
tsParseMappedTypeParameter() {
|
|
const node = this.startNode();
|
|
node.name = this.parseIdentifierName(node.start);
|
|
node.constraint = this.tsExpectThenParseType(types._in);
|
|
return this.finishNode(node, "TSTypeParameter");
|
|
}
|
|
|
|
tsParseMappedType() {
|
|
const node = this.startNode();
|
|
this.expect(types.braceL);
|
|
|
|
if (this.match(types.plusMin)) {
|
|
node.readonly = this.state.value;
|
|
this.next();
|
|
this.expectContextual("readonly");
|
|
} else if (this.eatContextual("readonly")) {
|
|
node.readonly = true;
|
|
}
|
|
|
|
this.expect(types.bracketL);
|
|
node.typeParameter = this.tsParseMappedTypeParameter();
|
|
this.expect(types.bracketR);
|
|
|
|
if (this.match(types.plusMin)) {
|
|
node.optional = this.state.value;
|
|
this.next();
|
|
this.expect(types.question);
|
|
} else if (this.eat(types.question)) {
|
|
node.optional = true;
|
|
}
|
|
|
|
node.typeAnnotation = this.tsTryParseType();
|
|
this.semicolon();
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "TSMappedType");
|
|
}
|
|
|
|
tsParseTupleType() {
|
|
const node = this.startNode();
|
|
node.elementTypes = this.tsParseBracketedList("TupleElementTypes", this.tsParseTupleElementType.bind(this), true, false);
|
|
let seenOptionalElement = false;
|
|
node.elementTypes.forEach(elementNode => {
|
|
if (elementNode.type === "TSOptionalType") {
|
|
seenOptionalElement = true;
|
|
} else if (seenOptionalElement && elementNode.type !== "TSRestType") {
|
|
this.raise(elementNode.start, TSErrors.OptionalTypeBeforeRequired);
|
|
}
|
|
});
|
|
return this.finishNode(node, "TSTupleType");
|
|
}
|
|
|
|
tsParseTupleElementType() {
|
|
if (this.match(types.ellipsis)) {
|
|
const restNode = this.startNode();
|
|
this.next();
|
|
restNode.typeAnnotation = this.tsParseType();
|
|
|
|
if (this.match(types.comma) && this.lookaheadCharCode() !== 93) {
|
|
this.raiseRestNotLast(this.state.start);
|
|
}
|
|
|
|
return this.finishNode(restNode, "TSRestType");
|
|
}
|
|
|
|
const type = this.tsParseType();
|
|
|
|
if (this.eat(types.question)) {
|
|
const optionalTypeNode = this.startNodeAtNode(type);
|
|
optionalTypeNode.typeAnnotation = type;
|
|
return this.finishNode(optionalTypeNode, "TSOptionalType");
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
tsParseParenthesizedType() {
|
|
const node = this.startNode();
|
|
this.expect(types.parenL);
|
|
node.typeAnnotation = this.tsParseType();
|
|
this.expect(types.parenR);
|
|
return this.finishNode(node, "TSParenthesizedType");
|
|
}
|
|
|
|
tsParseFunctionOrConstructorType(type) {
|
|
const node = this.startNode();
|
|
|
|
if (type === "TSConstructorType") {
|
|
this.expect(types._new);
|
|
}
|
|
|
|
this.tsFillSignature(types.arrow, node);
|
|
return this.finishNode(node, type);
|
|
}
|
|
|
|
tsParseLiteralTypeNode() {
|
|
const node = this.startNode();
|
|
|
|
node.literal = (() => {
|
|
switch (this.state.type) {
|
|
case types.num:
|
|
case types.bigint:
|
|
case types.string:
|
|
case types._true:
|
|
case types._false:
|
|
return this.parseExprAtom();
|
|
|
|
default:
|
|
throw this.unexpected();
|
|
}
|
|
})();
|
|
|
|
return this.finishNode(node, "TSLiteralType");
|
|
}
|
|
|
|
tsParseTemplateLiteralType() {
|
|
const node = this.startNode();
|
|
const templateNode = this.parseTemplate(false);
|
|
|
|
if (templateNode.expressions.length > 0) {
|
|
this.raise(templateNode.expressions[0].start, TSErrors.TemplateTypeHasSubstitution);
|
|
}
|
|
|
|
node.literal = templateNode;
|
|
return this.finishNode(node, "TSLiteralType");
|
|
}
|
|
|
|
tsParseThisTypeOrThisTypePredicate() {
|
|
const thisKeyword = this.tsParseThisTypeNode();
|
|
|
|
if (this.isContextual("is") && !this.hasPrecedingLineBreak()) {
|
|
return this.tsParseThisTypePredicate(thisKeyword);
|
|
} else {
|
|
return thisKeyword;
|
|
}
|
|
}
|
|
|
|
tsParseNonArrayType() {
|
|
switch (this.state.type) {
|
|
case types.name:
|
|
case types._void:
|
|
case types._null:
|
|
{
|
|
const type = this.match(types._void) ? "TSVoidKeyword" : this.match(types._null) ? "TSNullKeyword" : keywordTypeFromName(this.state.value);
|
|
|
|
if (type !== undefined && this.lookaheadCharCode() !== 46) {
|
|
const node = this.startNode();
|
|
this.next();
|
|
return this.finishNode(node, type);
|
|
}
|
|
|
|
return this.tsParseTypeReference();
|
|
}
|
|
|
|
case types.string:
|
|
case types.num:
|
|
case types.bigint:
|
|
case types._true:
|
|
case types._false:
|
|
return this.tsParseLiteralTypeNode();
|
|
|
|
case types.plusMin:
|
|
if (this.state.value === "-") {
|
|
const node = this.startNode();
|
|
const nextToken = this.lookahead();
|
|
|
|
if (nextToken.type !== types.num && nextToken.type !== types.bigint) {
|
|
throw this.unexpected();
|
|
}
|
|
|
|
node.literal = this.parseMaybeUnary();
|
|
return this.finishNode(node, "TSLiteralType");
|
|
}
|
|
|
|
break;
|
|
|
|
case types._this:
|
|
return this.tsParseThisTypeOrThisTypePredicate();
|
|
|
|
case types._typeof:
|
|
return this.tsParseTypeQuery();
|
|
|
|
case types._import:
|
|
return this.tsParseImportType();
|
|
|
|
case types.braceL:
|
|
return this.tsLookAhead(this.tsIsStartOfMappedType.bind(this)) ? this.tsParseMappedType() : this.tsParseTypeLiteral();
|
|
|
|
case types.bracketL:
|
|
return this.tsParseTupleType();
|
|
|
|
case types.parenL:
|
|
return this.tsParseParenthesizedType();
|
|
|
|
case types.backQuote:
|
|
return this.tsParseTemplateLiteralType();
|
|
}
|
|
|
|
throw this.unexpected();
|
|
}
|
|
|
|
tsParseArrayTypeOrHigher() {
|
|
let type = this.tsParseNonArrayType();
|
|
|
|
while (!this.hasPrecedingLineBreak() && this.eat(types.bracketL)) {
|
|
if (this.match(types.bracketR)) {
|
|
const node = this.startNodeAtNode(type);
|
|
node.elementType = type;
|
|
this.expect(types.bracketR);
|
|
type = this.finishNode(node, "TSArrayType");
|
|
} else {
|
|
const node = this.startNodeAtNode(type);
|
|
node.objectType = type;
|
|
node.indexType = this.tsParseType();
|
|
this.expect(types.bracketR);
|
|
type = this.finishNode(node, "TSIndexedAccessType");
|
|
}
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
tsParseTypeOperator(operator) {
|
|
const node = this.startNode();
|
|
this.expectContextual(operator);
|
|
node.operator = operator;
|
|
node.typeAnnotation = this.tsParseTypeOperatorOrHigher();
|
|
|
|
if (operator === "readonly") {
|
|
this.tsCheckTypeAnnotationForReadOnly(node);
|
|
}
|
|
|
|
return this.finishNode(node, "TSTypeOperator");
|
|
}
|
|
|
|
tsCheckTypeAnnotationForReadOnly(node) {
|
|
switch (node.typeAnnotation.type) {
|
|
case "TSTupleType":
|
|
case "TSArrayType":
|
|
return;
|
|
|
|
default:
|
|
this.raise(node.start, TSErrors.UnexpectedReadonly);
|
|
}
|
|
}
|
|
|
|
tsParseInferType() {
|
|
const node = this.startNode();
|
|
this.expectContextual("infer");
|
|
const typeParameter = this.startNode();
|
|
typeParameter.name = this.parseIdentifierName(typeParameter.start);
|
|
node.typeParameter = this.finishNode(typeParameter, "TSTypeParameter");
|
|
return this.finishNode(node, "TSInferType");
|
|
}
|
|
|
|
tsParseTypeOperatorOrHigher() {
|
|
const operator = ["keyof", "unique", "readonly"].find(kw => this.isContextual(kw));
|
|
return operator ? this.tsParseTypeOperator(operator) : this.isContextual("infer") ? this.tsParseInferType() : this.tsParseArrayTypeOrHigher();
|
|
}
|
|
|
|
tsParseUnionOrIntersectionType(kind, parseConstituentType, operator) {
|
|
this.eat(operator);
|
|
let type = parseConstituentType();
|
|
|
|
if (this.match(operator)) {
|
|
const types = [type];
|
|
|
|
while (this.eat(operator)) {
|
|
types.push(parseConstituentType());
|
|
}
|
|
|
|
const node = this.startNodeAtNode(type);
|
|
node.types = types;
|
|
type = this.finishNode(node, kind);
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
tsParseIntersectionTypeOrHigher() {
|
|
return this.tsParseUnionOrIntersectionType("TSIntersectionType", this.tsParseTypeOperatorOrHigher.bind(this), types.bitwiseAND);
|
|
}
|
|
|
|
tsParseUnionTypeOrHigher() {
|
|
return this.tsParseUnionOrIntersectionType("TSUnionType", this.tsParseIntersectionTypeOrHigher.bind(this), types.bitwiseOR);
|
|
}
|
|
|
|
tsIsStartOfFunctionType() {
|
|
if (this.isRelational("<")) {
|
|
return true;
|
|
}
|
|
|
|
return this.match(types.parenL) && this.tsLookAhead(this.tsIsUnambiguouslyStartOfFunctionType.bind(this));
|
|
}
|
|
|
|
tsSkipParameterStart() {
|
|
if (this.match(types.name) || this.match(types._this)) {
|
|
this.next();
|
|
return true;
|
|
}
|
|
|
|
if (this.match(types.braceL)) {
|
|
let braceStackCounter = 1;
|
|
this.next();
|
|
|
|
while (braceStackCounter > 0) {
|
|
if (this.match(types.braceL)) {
|
|
++braceStackCounter;
|
|
} else if (this.match(types.braceR)) {
|
|
--braceStackCounter;
|
|
}
|
|
|
|
this.next();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
if (this.match(types.bracketL)) {
|
|
let braceStackCounter = 1;
|
|
this.next();
|
|
|
|
while (braceStackCounter > 0) {
|
|
if (this.match(types.bracketL)) {
|
|
++braceStackCounter;
|
|
} else if (this.match(types.bracketR)) {
|
|
--braceStackCounter;
|
|
}
|
|
|
|
this.next();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
tsIsUnambiguouslyStartOfFunctionType() {
|
|
this.next();
|
|
|
|
if (this.match(types.parenR) || this.match(types.ellipsis)) {
|
|
return true;
|
|
}
|
|
|
|
if (this.tsSkipParameterStart()) {
|
|
if (this.match(types.colon) || this.match(types.comma) || this.match(types.question) || this.match(types.eq)) {
|
|
return true;
|
|
}
|
|
|
|
if (this.match(types.parenR)) {
|
|
this.next();
|
|
|
|
if (this.match(types.arrow)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
tsParseTypeOrTypePredicateAnnotation(returnToken) {
|
|
return this.tsInType(() => {
|
|
const t = this.startNode();
|
|
this.expect(returnToken);
|
|
const asserts = this.tsTryParse(this.tsParseTypePredicateAsserts.bind(this));
|
|
|
|
if (asserts && this.match(types._this)) {
|
|
let thisTypePredicate = this.tsParseThisTypeOrThisTypePredicate();
|
|
|
|
if (thisTypePredicate.type === "TSThisType") {
|
|
const node = this.startNodeAtNode(t);
|
|
node.parameterName = thisTypePredicate;
|
|
node.asserts = true;
|
|
thisTypePredicate = this.finishNode(node, "TSTypePredicate");
|
|
} else {
|
|
thisTypePredicate.asserts = true;
|
|
}
|
|
|
|
t.typeAnnotation = thisTypePredicate;
|
|
return this.finishNode(t, "TSTypeAnnotation");
|
|
}
|
|
|
|
const typePredicateVariable = this.tsIsIdentifier() && this.tsTryParse(this.tsParseTypePredicatePrefix.bind(this));
|
|
|
|
if (!typePredicateVariable) {
|
|
if (!asserts) {
|
|
return this.tsParseTypeAnnotation(false, t);
|
|
}
|
|
|
|
const node = this.startNodeAtNode(t);
|
|
node.parameterName = this.parseIdentifier();
|
|
node.asserts = asserts;
|
|
t.typeAnnotation = this.finishNode(node, "TSTypePredicate");
|
|
return this.finishNode(t, "TSTypeAnnotation");
|
|
}
|
|
|
|
const type = this.tsParseTypeAnnotation(false);
|
|
const node = this.startNodeAtNode(t);
|
|
node.parameterName = typePredicateVariable;
|
|
node.typeAnnotation = type;
|
|
node.asserts = asserts;
|
|
t.typeAnnotation = this.finishNode(node, "TSTypePredicate");
|
|
return this.finishNode(t, "TSTypeAnnotation");
|
|
});
|
|
}
|
|
|
|
tsTryParseTypeOrTypePredicateAnnotation() {
|
|
return this.match(types.colon) ? this.tsParseTypeOrTypePredicateAnnotation(types.colon) : undefined;
|
|
}
|
|
|
|
tsTryParseTypeAnnotation() {
|
|
return this.match(types.colon) ? this.tsParseTypeAnnotation() : undefined;
|
|
}
|
|
|
|
tsTryParseType() {
|
|
return this.tsEatThenParseType(types.colon);
|
|
}
|
|
|
|
tsParseTypePredicatePrefix() {
|
|
const id = this.parseIdentifier();
|
|
|
|
if (this.isContextual("is") && !this.hasPrecedingLineBreak()) {
|
|
this.next();
|
|
return id;
|
|
}
|
|
}
|
|
|
|
tsParseTypePredicateAsserts() {
|
|
if (!this.match(types.name) || this.state.value !== "asserts" || this.hasPrecedingLineBreak()) {
|
|
return false;
|
|
}
|
|
|
|
const containsEsc = this.state.containsEsc;
|
|
this.next();
|
|
|
|
if (!this.match(types.name) && !this.match(types._this)) {
|
|
return false;
|
|
}
|
|
|
|
if (containsEsc) {
|
|
this.raise(this.state.lastTokStart, ErrorMessages.InvalidEscapedReservedWord, "asserts");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
tsParseTypeAnnotation(eatColon = true, t = this.startNode()) {
|
|
this.tsInType(() => {
|
|
if (eatColon) this.expect(types.colon);
|
|
t.typeAnnotation = this.tsParseType();
|
|
});
|
|
return this.finishNode(t, "TSTypeAnnotation");
|
|
}
|
|
|
|
tsParseType() {
|
|
assert(this.state.inType);
|
|
const type = this.tsParseNonConditionalType();
|
|
|
|
if (this.hasPrecedingLineBreak() || !this.eat(types._extends)) {
|
|
return type;
|
|
}
|
|
|
|
const node = this.startNodeAtNode(type);
|
|
node.checkType = type;
|
|
node.extendsType = this.tsParseNonConditionalType();
|
|
this.expect(types.question);
|
|
node.trueType = this.tsParseType();
|
|
this.expect(types.colon);
|
|
node.falseType = this.tsParseType();
|
|
return this.finishNode(node, "TSConditionalType");
|
|
}
|
|
|
|
tsParseNonConditionalType() {
|
|
if (this.tsIsStartOfFunctionType()) {
|
|
return this.tsParseFunctionOrConstructorType("TSFunctionType");
|
|
}
|
|
|
|
if (this.match(types._new)) {
|
|
return this.tsParseFunctionOrConstructorType("TSConstructorType");
|
|
}
|
|
|
|
return this.tsParseUnionTypeOrHigher();
|
|
}
|
|
|
|
tsParseTypeAssertion() {
|
|
const node = this.startNode();
|
|
|
|
const _const = this.tsTryNextParseConstantContext();
|
|
|
|
node.typeAnnotation = _const || this.tsNextThenParseType();
|
|
this.expectRelational(">");
|
|
node.expression = this.parseMaybeUnary();
|
|
return this.finishNode(node, "TSTypeAssertion");
|
|
}
|
|
|
|
tsParseHeritageClause(descriptor) {
|
|
const originalStart = this.state.start;
|
|
const delimitedList = this.tsParseDelimitedList("HeritageClauseElement", this.tsParseExpressionWithTypeArguments.bind(this));
|
|
|
|
if (!delimitedList.length) {
|
|
this.raise(originalStart, TSErrors.EmptyHeritageClauseType, descriptor);
|
|
}
|
|
|
|
return delimitedList;
|
|
}
|
|
|
|
tsParseExpressionWithTypeArguments() {
|
|
const node = this.startNode();
|
|
node.expression = this.tsParseEntityName(false);
|
|
|
|
if (this.isRelational("<")) {
|
|
node.typeParameters = this.tsParseTypeArguments();
|
|
}
|
|
|
|
return this.finishNode(node, "TSExpressionWithTypeArguments");
|
|
}
|
|
|
|
tsParseInterfaceDeclaration(node) {
|
|
node.id = this.parseIdentifier();
|
|
this.checkLVal(node.id, BIND_TS_INTERFACE, undefined, "typescript interface declaration");
|
|
node.typeParameters = this.tsTryParseTypeParameters();
|
|
|
|
if (this.eat(types._extends)) {
|
|
node.extends = this.tsParseHeritageClause("extends");
|
|
}
|
|
|
|
const body = this.startNode();
|
|
body.body = this.tsInType(this.tsParseObjectTypeMembers.bind(this));
|
|
node.body = this.finishNode(body, "TSInterfaceBody");
|
|
return this.finishNode(node, "TSInterfaceDeclaration");
|
|
}
|
|
|
|
tsParseTypeAliasDeclaration(node) {
|
|
node.id = this.parseIdentifier();
|
|
this.checkLVal(node.id, BIND_TS_TYPE, undefined, "typescript type alias");
|
|
node.typeParameters = this.tsTryParseTypeParameters();
|
|
node.typeAnnotation = this.tsExpectThenParseType(types.eq);
|
|
this.semicolon();
|
|
return this.finishNode(node, "TSTypeAliasDeclaration");
|
|
}
|
|
|
|
tsInNoContext(cb) {
|
|
const oldContext = this.state.context;
|
|
this.state.context = [oldContext[0]];
|
|
|
|
try {
|
|
return cb();
|
|
} finally {
|
|
this.state.context = oldContext;
|
|
}
|
|
}
|
|
|
|
tsInType(cb) {
|
|
const oldInType = this.state.inType;
|
|
this.state.inType = true;
|
|
|
|
try {
|
|
return cb();
|
|
} finally {
|
|
this.state.inType = oldInType;
|
|
}
|
|
}
|
|
|
|
tsEatThenParseType(token) {
|
|
return !this.match(token) ? undefined : this.tsNextThenParseType();
|
|
}
|
|
|
|
tsExpectThenParseType(token) {
|
|
return this.tsDoThenParseType(() => this.expect(token));
|
|
}
|
|
|
|
tsNextThenParseType() {
|
|
return this.tsDoThenParseType(() => this.next());
|
|
}
|
|
|
|
tsDoThenParseType(cb) {
|
|
return this.tsInType(() => {
|
|
cb();
|
|
return this.tsParseType();
|
|
});
|
|
}
|
|
|
|
tsParseEnumMember() {
|
|
const node = this.startNode();
|
|
node.id = this.match(types.string) ? this.parseExprAtom() : this.parseIdentifier(true);
|
|
|
|
if (this.eat(types.eq)) {
|
|
node.initializer = this.parseMaybeAssign();
|
|
}
|
|
|
|
return this.finishNode(node, "TSEnumMember");
|
|
}
|
|
|
|
tsParseEnumDeclaration(node, isConst) {
|
|
if (isConst) node.const = true;
|
|
node.id = this.parseIdentifier();
|
|
this.checkLVal(node.id, isConst ? BIND_TS_CONST_ENUM : BIND_TS_ENUM, undefined, "typescript enum declaration");
|
|
this.expect(types.braceL);
|
|
node.members = this.tsParseDelimitedList("EnumMembers", this.tsParseEnumMember.bind(this));
|
|
this.expect(types.braceR);
|
|
return this.finishNode(node, "TSEnumDeclaration");
|
|
}
|
|
|
|
tsParseModuleBlock() {
|
|
const node = this.startNode();
|
|
this.scope.enter(SCOPE_OTHER);
|
|
this.expect(types.braceL);
|
|
this.parseBlockOrModuleBlockBody(node.body = [], undefined, true, types.braceR);
|
|
this.scope.exit();
|
|
return this.finishNode(node, "TSModuleBlock");
|
|
}
|
|
|
|
tsParseModuleOrNamespaceDeclaration(node, nested = false) {
|
|
node.id = this.parseIdentifier();
|
|
|
|
if (!nested) {
|
|
this.checkLVal(node.id, BIND_TS_NAMESPACE, null, "module or namespace declaration");
|
|
}
|
|
|
|
if (this.eat(types.dot)) {
|
|
const inner = this.startNode();
|
|
this.tsParseModuleOrNamespaceDeclaration(inner, true);
|
|
node.body = inner;
|
|
} else {
|
|
this.scope.enter(SCOPE_TS_MODULE);
|
|
this.prodParam.enter(PARAM);
|
|
node.body = this.tsParseModuleBlock();
|
|
this.prodParam.exit();
|
|
this.scope.exit();
|
|
}
|
|
|
|
return this.finishNode(node, "TSModuleDeclaration");
|
|
}
|
|
|
|
tsParseAmbientExternalModuleDeclaration(node) {
|
|
if (this.isContextual("global")) {
|
|
node.global = true;
|
|
node.id = this.parseIdentifier();
|
|
} else if (this.match(types.string)) {
|
|
node.id = this.parseExprAtom();
|
|
} else {
|
|
this.unexpected();
|
|
}
|
|
|
|
if (this.match(types.braceL)) {
|
|
this.scope.enter(SCOPE_TS_MODULE);
|
|
this.prodParam.enter(PARAM);
|
|
node.body = this.tsParseModuleBlock();
|
|
this.prodParam.exit();
|
|
this.scope.exit();
|
|
} else {
|
|
this.semicolon();
|
|
}
|
|
|
|
return this.finishNode(node, "TSModuleDeclaration");
|
|
}
|
|
|
|
tsParseImportEqualsDeclaration(node, isExport) {
|
|
node.isExport = isExport || false;
|
|
node.id = this.parseIdentifier();
|
|
this.checkLVal(node.id, BIND_LEXICAL, undefined, "import equals declaration");
|
|
this.expect(types.eq);
|
|
node.moduleReference = this.tsParseModuleReference();
|
|
this.semicolon();
|
|
return this.finishNode(node, "TSImportEqualsDeclaration");
|
|
}
|
|
|
|
tsIsExternalModuleReference() {
|
|
return this.isContextual("require") && this.lookaheadCharCode() === 40;
|
|
}
|
|
|
|
tsParseModuleReference() {
|
|
return this.tsIsExternalModuleReference() ? this.tsParseExternalModuleReference() : this.tsParseEntityName(false);
|
|
}
|
|
|
|
tsParseExternalModuleReference() {
|
|
const node = this.startNode();
|
|
this.expectContextual("require");
|
|
this.expect(types.parenL);
|
|
|
|
if (!this.match(types.string)) {
|
|
throw this.unexpected();
|
|
}
|
|
|
|
node.expression = this.parseExprAtom();
|
|
this.expect(types.parenR);
|
|
return this.finishNode(node, "TSExternalModuleReference");
|
|
}
|
|
|
|
tsLookAhead(f) {
|
|
const state = this.state.clone();
|
|
const res = f();
|
|
this.state = state;
|
|
return res;
|
|
}
|
|
|
|
tsTryParseAndCatch(f) {
|
|
const result = this.tryParse(abort => f() || abort());
|
|
if (result.aborted || !result.node) return undefined;
|
|
if (result.error) this.state = result.failState;
|
|
return result.node;
|
|
}
|
|
|
|
tsTryParse(f) {
|
|
const state = this.state.clone();
|
|
const result = f();
|
|
|
|
if (result !== undefined && result !== false) {
|
|
return result;
|
|
} else {
|
|
this.state = state;
|
|
return undefined;
|
|
}
|
|
}
|
|
|
|
tsTryParseDeclare(nany) {
|
|
if (this.isLineTerminator()) {
|
|
return;
|
|
}
|
|
|
|
let starttype = this.state.type;
|
|
let kind;
|
|
|
|
if (this.isContextual("let")) {
|
|
starttype = types._var;
|
|
kind = "let";
|
|
}
|
|
|
|
switch (starttype) {
|
|
case types._function:
|
|
return this.parseFunctionStatement(nany, false, true);
|
|
|
|
case types._class:
|
|
nany.declare = true;
|
|
return this.parseClass(nany, true, false);
|
|
|
|
case types._const:
|
|
if (this.match(types._const) && this.isLookaheadContextual("enum")) {
|
|
this.expect(types._const);
|
|
this.expectContextual("enum");
|
|
return this.tsParseEnumDeclaration(nany, true);
|
|
}
|
|
|
|
case types._var:
|
|
kind = kind || this.state.value;
|
|
return this.parseVarStatement(nany, kind);
|
|
|
|
case types.name:
|
|
{
|
|
const value = this.state.value;
|
|
|
|
if (value === "global") {
|
|
return this.tsParseAmbientExternalModuleDeclaration(nany);
|
|
} else {
|
|
return this.tsParseDeclaration(nany, value, true);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
tsTryParseExportDeclaration() {
|
|
return this.tsParseDeclaration(this.startNode(), this.state.value, true);
|
|
}
|
|
|
|
tsParseExpressionStatement(node, expr) {
|
|
switch (expr.name) {
|
|
case "declare":
|
|
{
|
|
const declaration = this.tsTryParseDeclare(node);
|
|
|
|
if (declaration) {
|
|
declaration.declare = true;
|
|
return declaration;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case "global":
|
|
if (this.match(types.braceL)) {
|
|
this.scope.enter(SCOPE_TS_MODULE);
|
|
this.prodParam.enter(PARAM);
|
|
const mod = node;
|
|
mod.global = true;
|
|
mod.id = expr;
|
|
mod.body = this.tsParseModuleBlock();
|
|
this.scope.exit();
|
|
this.prodParam.exit();
|
|
return this.finishNode(mod, "TSModuleDeclaration");
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
return this.tsParseDeclaration(node, expr.name, false);
|
|
}
|
|
}
|
|
|
|
tsParseDeclaration(node, value, next) {
|
|
switch (value) {
|
|
case "abstract":
|
|
if (this.tsCheckLineTerminatorAndMatch(types._class, next)) {
|
|
const cls = node;
|
|
cls.abstract = true;
|
|
|
|
if (next) {
|
|
this.next();
|
|
|
|
if (!this.match(types._class)) {
|
|
this.unexpected(null, types._class);
|
|
}
|
|
}
|
|
|
|
return this.parseClass(cls, true, false);
|
|
}
|
|
|
|
break;
|
|
|
|
case "enum":
|
|
if (next || this.match(types.name)) {
|
|
if (next) this.next();
|
|
return this.tsParseEnumDeclaration(node, false);
|
|
}
|
|
|
|
break;
|
|
|
|
case "interface":
|
|
if (this.tsCheckLineTerminatorAndMatch(types.name, next)) {
|
|
if (next) this.next();
|
|
return this.tsParseInterfaceDeclaration(node);
|
|
}
|
|
|
|
break;
|
|
|
|
case "module":
|
|
if (next) this.next();
|
|
|
|
if (this.match(types.string)) {
|
|
return this.tsParseAmbientExternalModuleDeclaration(node);
|
|
} else if (this.tsCheckLineTerminatorAndMatch(types.name, next)) {
|
|
return this.tsParseModuleOrNamespaceDeclaration(node);
|
|
}
|
|
|
|
break;
|
|
|
|
case "namespace":
|
|
if (this.tsCheckLineTerminatorAndMatch(types.name, next)) {
|
|
if (next) this.next();
|
|
return this.tsParseModuleOrNamespaceDeclaration(node);
|
|
}
|
|
|
|
break;
|
|
|
|
case "type":
|
|
if (this.tsCheckLineTerminatorAndMatch(types.name, next)) {
|
|
if (next) this.next();
|
|
return this.tsParseTypeAliasDeclaration(node);
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
tsCheckLineTerminatorAndMatch(tokenType, next) {
|
|
return (next || this.match(tokenType)) && !this.isLineTerminator();
|
|
}
|
|
|
|
tsTryParseGenericAsyncArrowFunction(startPos, startLoc) {
|
|
if (!this.isRelational("<")) {
|
|
return undefined;
|
|
}
|
|
|
|
const oldMaybeInArrowParameters = this.state.maybeInArrowParameters;
|
|
const oldYieldPos = this.state.yieldPos;
|
|
const oldAwaitPos = this.state.awaitPos;
|
|
this.state.maybeInArrowParameters = true;
|
|
this.state.yieldPos = -1;
|
|
this.state.awaitPos = -1;
|
|
const res = this.tsTryParseAndCatch(() => {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.typeParameters = this.tsParseTypeParameters();
|
|
super.parseFunctionParams(node);
|
|
node.returnType = this.tsTryParseTypeOrTypePredicateAnnotation();
|
|
this.expect(types.arrow);
|
|
return node;
|
|
});
|
|
this.state.maybeInArrowParameters = oldMaybeInArrowParameters;
|
|
this.state.yieldPos = oldYieldPos;
|
|
this.state.awaitPos = oldAwaitPos;
|
|
|
|
if (!res) {
|
|
return undefined;
|
|
}
|
|
|
|
return this.parseArrowExpression(res, null, true);
|
|
}
|
|
|
|
tsParseTypeArguments() {
|
|
const node = this.startNode();
|
|
node.params = this.tsInType(() => this.tsInNoContext(() => {
|
|
this.expectRelational("<");
|
|
return this.tsParseDelimitedList("TypeParametersOrArguments", this.tsParseType.bind(this));
|
|
}));
|
|
this.state.exprAllowed = false;
|
|
this.expectRelational(">");
|
|
return this.finishNode(node, "TSTypeParameterInstantiation");
|
|
}
|
|
|
|
tsIsDeclarationStart() {
|
|
if (this.match(types.name)) {
|
|
switch (this.state.value) {
|
|
case "abstract":
|
|
case "declare":
|
|
case "enum":
|
|
case "interface":
|
|
case "module":
|
|
case "namespace":
|
|
case "type":
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
isExportDefaultSpecifier() {
|
|
if (this.tsIsDeclarationStart()) return false;
|
|
return super.isExportDefaultSpecifier();
|
|
}
|
|
|
|
parseAssignableListItem(allowModifiers, decorators) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
let accessibility;
|
|
let readonly = false;
|
|
|
|
if (allowModifiers) {
|
|
accessibility = this.parseAccessModifier();
|
|
readonly = !!this.tsParseModifier(["readonly"]);
|
|
}
|
|
|
|
const left = this.parseMaybeDefault();
|
|
this.parseAssignableListItemTypes(left);
|
|
const elt = this.parseMaybeDefault(left.start, left.loc.start, left);
|
|
|
|
if (accessibility || readonly) {
|
|
const pp = this.startNodeAt(startPos, startLoc);
|
|
|
|
if (decorators.length) {
|
|
pp.decorators = decorators;
|
|
}
|
|
|
|
if (accessibility) pp.accessibility = accessibility;
|
|
if (readonly) pp.readonly = readonly;
|
|
|
|
if (elt.type !== "Identifier" && elt.type !== "AssignmentPattern") {
|
|
this.raise(pp.start, TSErrors.UnsupportedParameterPropertyKind);
|
|
}
|
|
|
|
pp.parameter = elt;
|
|
return this.finishNode(pp, "TSParameterProperty");
|
|
}
|
|
|
|
if (decorators.length) {
|
|
left.decorators = decorators;
|
|
}
|
|
|
|
return elt;
|
|
}
|
|
|
|
parseFunctionBodyAndFinish(node, type, isMethod = false) {
|
|
if (this.match(types.colon)) {
|
|
node.returnType = this.tsParseTypeOrTypePredicateAnnotation(types.colon);
|
|
}
|
|
|
|
const bodilessType = type === "FunctionDeclaration" ? "TSDeclareFunction" : type === "ClassMethod" ? "TSDeclareMethod" : undefined;
|
|
|
|
if (bodilessType && !this.match(types.braceL) && this.isLineTerminator()) {
|
|
this.finishNode(node, bodilessType);
|
|
return;
|
|
}
|
|
|
|
super.parseFunctionBodyAndFinish(node, type, isMethod);
|
|
}
|
|
|
|
registerFunctionStatementId(node) {
|
|
if (!node.body && node.id) {
|
|
this.checkLVal(node.id, BIND_TS_AMBIENT, null, "function name");
|
|
} else {
|
|
super.registerFunctionStatementId(...arguments);
|
|
}
|
|
}
|
|
|
|
parseSubscript(base, startPos, startLoc, noCalls, state) {
|
|
if (!this.hasPrecedingLineBreak() && this.match(types.bang)) {
|
|
this.state.exprAllowed = false;
|
|
this.next();
|
|
const nonNullExpression = this.startNodeAt(startPos, startLoc);
|
|
nonNullExpression.expression = base;
|
|
return this.finishNode(nonNullExpression, "TSNonNullExpression");
|
|
}
|
|
|
|
if (this.isRelational("<")) {
|
|
const result = this.tsTryParseAndCatch(() => {
|
|
if (!noCalls && this.atPossibleAsyncArrow(base)) {
|
|
const asyncArrowFn = this.tsTryParseGenericAsyncArrowFunction(startPos, startLoc);
|
|
|
|
if (asyncArrowFn) {
|
|
return asyncArrowFn;
|
|
}
|
|
}
|
|
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.callee = base;
|
|
const typeArguments = this.tsParseTypeArguments();
|
|
|
|
if (typeArguments) {
|
|
if (!noCalls && this.eat(types.parenL)) {
|
|
node.arguments = this.parseCallExpressionArguments(types.parenR, false);
|
|
node.typeParameters = typeArguments;
|
|
return this.finishCallExpression(node, state.optionalChainMember);
|
|
} else if (this.match(types.backQuote)) {
|
|
return this.parseTaggedTemplateExpression(startPos, startLoc, base, state, typeArguments);
|
|
}
|
|
}
|
|
|
|
this.unexpected();
|
|
});
|
|
if (result) return result;
|
|
}
|
|
|
|
return super.parseSubscript(base, startPos, startLoc, noCalls, state);
|
|
}
|
|
|
|
parseNewArguments(node) {
|
|
if (this.isRelational("<")) {
|
|
const typeParameters = this.tsTryParseAndCatch(() => {
|
|
const args = this.tsParseTypeArguments();
|
|
if (!this.match(types.parenL)) this.unexpected();
|
|
return args;
|
|
});
|
|
|
|
if (typeParameters) {
|
|
node.typeParameters = typeParameters;
|
|
}
|
|
}
|
|
|
|
super.parseNewArguments(node);
|
|
}
|
|
|
|
parseExprOp(left, leftStartPos, leftStartLoc, minPrec, noIn) {
|
|
if (nonNull(types._in.binop) > minPrec && !this.hasPrecedingLineBreak() && this.isContextual("as")) {
|
|
const node = this.startNodeAt(leftStartPos, leftStartLoc);
|
|
node.expression = left;
|
|
|
|
const _const = this.tsTryNextParseConstantContext();
|
|
|
|
if (_const) {
|
|
node.typeAnnotation = _const;
|
|
} else {
|
|
node.typeAnnotation = this.tsNextThenParseType();
|
|
}
|
|
|
|
this.finishNode(node, "TSAsExpression");
|
|
return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn);
|
|
}
|
|
|
|
return super.parseExprOp(left, leftStartPos, leftStartLoc, minPrec, noIn);
|
|
}
|
|
|
|
checkReservedWord(word, startLoc, checkKeywords, isBinding) {}
|
|
|
|
checkDuplicateExports() {}
|
|
|
|
parseImport(node) {
|
|
if (this.match(types.name) || this.match(types.star) || this.match(types.braceL)) {
|
|
const ahead = this.lookahead();
|
|
|
|
if (this.match(types.name) && ahead.type === types.eq) {
|
|
return this.tsParseImportEqualsDeclaration(node);
|
|
}
|
|
|
|
if (this.isContextual("type") && ahead.type !== types.comma && !(ahead.type === types.name && ahead.value === "from")) {
|
|
node.importKind = "type";
|
|
this.next();
|
|
} else {
|
|
node.importKind = "value";
|
|
}
|
|
}
|
|
|
|
const importNode = super.parseImport(node);
|
|
|
|
if (importNode.importKind === "type" && importNode.specifiers.length > 1 && importNode.specifiers[0].type === "ImportDefaultSpecifier") {
|
|
this.raise(importNode.start, "A type-only import can specify a default import or named bindings, but not both.");
|
|
}
|
|
|
|
return importNode;
|
|
}
|
|
|
|
parseExport(node) {
|
|
if (this.match(types._import)) {
|
|
this.expect(types._import);
|
|
return this.tsParseImportEqualsDeclaration(node, true);
|
|
} else if (this.eat(types.eq)) {
|
|
const assign = node;
|
|
assign.expression = this.parseExpression();
|
|
this.semicolon();
|
|
return this.finishNode(assign, "TSExportAssignment");
|
|
} else if (this.eatContextual("as")) {
|
|
const decl = node;
|
|
this.expectContextual("namespace");
|
|
decl.id = this.parseIdentifier();
|
|
this.semicolon();
|
|
return this.finishNode(decl, "TSNamespaceExportDeclaration");
|
|
} else {
|
|
if (this.isContextual("type") && this.lookahead().type === types.braceL) {
|
|
this.next();
|
|
node.exportKind = "type";
|
|
} else {
|
|
node.exportKind = "value";
|
|
}
|
|
|
|
return super.parseExport(node);
|
|
}
|
|
}
|
|
|
|
isAbstractClass() {
|
|
return this.isContextual("abstract") && this.lookahead().type === types._class;
|
|
}
|
|
|
|
parseExportDefaultExpression() {
|
|
if (this.isAbstractClass()) {
|
|
const cls = this.startNode();
|
|
this.next();
|
|
this.parseClass(cls, true, true);
|
|
cls.abstract = true;
|
|
return cls;
|
|
}
|
|
|
|
if (this.state.value === "interface") {
|
|
const result = this.tsParseDeclaration(this.startNode(), this.state.value, true);
|
|
if (result) return result;
|
|
}
|
|
|
|
return super.parseExportDefaultExpression();
|
|
}
|
|
|
|
parseStatementContent(context, topLevel) {
|
|
if (this.state.type === types._const) {
|
|
const ahead = this.lookahead();
|
|
|
|
if (ahead.type === types.name && ahead.value === "enum") {
|
|
const node = this.startNode();
|
|
this.expect(types._const);
|
|
this.expectContextual("enum");
|
|
return this.tsParseEnumDeclaration(node, true);
|
|
}
|
|
}
|
|
|
|
return super.parseStatementContent(context, topLevel);
|
|
}
|
|
|
|
parseAccessModifier() {
|
|
return this.tsParseModifier(["public", "protected", "private"]);
|
|
}
|
|
|
|
parseClassMember(classBody, member, state, constructorAllowsSuper) {
|
|
this.tsParseModifiers(member, ["declare"]);
|
|
const accessibility = this.parseAccessModifier();
|
|
if (accessibility) member.accessibility = accessibility;
|
|
this.tsParseModifiers(member, ["declare"]);
|
|
super.parseClassMember(classBody, member, state, constructorAllowsSuper);
|
|
}
|
|
|
|
parseClassMemberWithIsStatic(classBody, member, state, isStatic, constructorAllowsSuper) {
|
|
this.tsParseModifiers(member, ["abstract", "readonly", "declare"]);
|
|
const idx = this.tsTryParseIndexSignature(member);
|
|
|
|
if (idx) {
|
|
classBody.body.push(idx);
|
|
|
|
if (member.abstract) {
|
|
this.raise(member.start, TSErrors.IndexSignatureHasAbstract);
|
|
}
|
|
|
|
if (isStatic) {
|
|
this.raise(member.start, TSErrors.IndexSignatureHasStatic);
|
|
}
|
|
|
|
if (member.accessibility) {
|
|
this.raise(member.start, TSErrors.IndexSignatureHasAccessibility, member.accessibility);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
super.parseClassMemberWithIsStatic(classBody, member, state, isStatic, constructorAllowsSuper);
|
|
}
|
|
|
|
parsePostMemberNameModifiers(methodOrProp) {
|
|
const optional = this.eat(types.question);
|
|
if (optional) methodOrProp.optional = true;
|
|
|
|
if (methodOrProp.readonly && this.match(types.parenL)) {
|
|
this.raise(methodOrProp.start, TSErrors.ClassMethodHasReadonly);
|
|
}
|
|
|
|
if (methodOrProp.declare && this.match(types.parenL)) {
|
|
this.raise(methodOrProp.start, TSErrors.ClassMethodHasDeclare);
|
|
}
|
|
}
|
|
|
|
parseExpressionStatement(node, expr) {
|
|
const decl = expr.type === "Identifier" ? this.tsParseExpressionStatement(node, expr) : undefined;
|
|
return decl || super.parseExpressionStatement(node, expr);
|
|
}
|
|
|
|
shouldParseExportDeclaration() {
|
|
if (this.tsIsDeclarationStart()) return true;
|
|
return super.shouldParseExportDeclaration();
|
|
}
|
|
|
|
parseConditional(expr, noIn, startPos, startLoc, refNeedsArrowPos) {
|
|
if (!refNeedsArrowPos || !this.match(types.question)) {
|
|
return super.parseConditional(expr, noIn, startPos, startLoc, refNeedsArrowPos);
|
|
}
|
|
|
|
const result = this.tryParse(() => super.parseConditional(expr, noIn, startPos, startLoc));
|
|
|
|
if (!result.node) {
|
|
refNeedsArrowPos.start = result.error.pos || this.state.start;
|
|
return expr;
|
|
}
|
|
|
|
if (result.error) this.state = result.failState;
|
|
return result.node;
|
|
}
|
|
|
|
parseParenItem(node, startPos, startLoc) {
|
|
node = super.parseParenItem(node, startPos, startLoc);
|
|
|
|
if (this.eat(types.question)) {
|
|
node.optional = true;
|
|
this.resetEndLocation(node);
|
|
}
|
|
|
|
if (this.match(types.colon)) {
|
|
const typeCastNode = this.startNodeAt(startPos, startLoc);
|
|
typeCastNode.expression = node;
|
|
typeCastNode.typeAnnotation = this.tsParseTypeAnnotation();
|
|
return this.finishNode(typeCastNode, "TSTypeCastExpression");
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
parseExportDeclaration(node) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
const isDeclare = this.eatContextual("declare");
|
|
let declaration;
|
|
|
|
if (this.match(types.name)) {
|
|
declaration = this.tsTryParseExportDeclaration();
|
|
}
|
|
|
|
if (!declaration) {
|
|
declaration = super.parseExportDeclaration(node);
|
|
}
|
|
|
|
if (declaration && (declaration.type === "TSInterfaceDeclaration" || declaration.type === "TSTypeAliasDeclaration" || isDeclare)) {
|
|
node.exportKind = "type";
|
|
}
|
|
|
|
if (declaration && isDeclare) {
|
|
this.resetStartLocation(declaration, startPos, startLoc);
|
|
declaration.declare = true;
|
|
}
|
|
|
|
return declaration;
|
|
}
|
|
|
|
parseClassId(node, isStatement, optionalId) {
|
|
if ((!isStatement || optionalId) && this.isContextual("implements")) {
|
|
return;
|
|
}
|
|
|
|
super.parseClassId(node, isStatement, optionalId, node.declare ? BIND_TS_AMBIENT : BIND_CLASS);
|
|
const typeParameters = this.tsTryParseTypeParameters();
|
|
if (typeParameters) node.typeParameters = typeParameters;
|
|
}
|
|
|
|
parseClassPropertyAnnotation(node) {
|
|
if (!node.optional && this.eat(types.bang)) {
|
|
node.definite = true;
|
|
}
|
|
|
|
const type = this.tsTryParseTypeAnnotation();
|
|
if (type) node.typeAnnotation = type;
|
|
}
|
|
|
|
parseClassProperty(node) {
|
|
this.parseClassPropertyAnnotation(node);
|
|
|
|
if (node.declare && this.match(types.equal)) {
|
|
this.raise(this.state.start, TSErrors.DeclareClassFieldHasInitializer);
|
|
}
|
|
|
|
return super.parseClassProperty(node);
|
|
}
|
|
|
|
parseClassPrivateProperty(node) {
|
|
if (node.abstract) {
|
|
this.raise(node.start, TSErrors.PrivateElementHasAbstract);
|
|
}
|
|
|
|
if (node.accessibility) {
|
|
this.raise(node.start, TSErrors.PrivateElementHasAccessibility, node.accessibility);
|
|
}
|
|
|
|
this.parseClassPropertyAnnotation(node);
|
|
return super.parseClassPrivateProperty(node);
|
|
}
|
|
|
|
pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper) {
|
|
const typeParameters = this.tsTryParseTypeParameters();
|
|
if (typeParameters) method.typeParameters = typeParameters;
|
|
super.pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper);
|
|
}
|
|
|
|
pushClassPrivateMethod(classBody, method, isGenerator, isAsync) {
|
|
const typeParameters = this.tsTryParseTypeParameters();
|
|
if (typeParameters) method.typeParameters = typeParameters;
|
|
super.pushClassPrivateMethod(classBody, method, isGenerator, isAsync);
|
|
}
|
|
|
|
parseClassSuper(node) {
|
|
super.parseClassSuper(node);
|
|
|
|
if (node.superClass && this.isRelational("<")) {
|
|
node.superTypeParameters = this.tsParseTypeArguments();
|
|
}
|
|
|
|
if (this.eatContextual("implements")) {
|
|
node.implements = this.tsParseHeritageClause("implements");
|
|
}
|
|
}
|
|
|
|
parseObjPropValue(prop, ...args) {
|
|
const typeParameters = this.tsTryParseTypeParameters();
|
|
if (typeParameters) prop.typeParameters = typeParameters;
|
|
super.parseObjPropValue(prop, ...args);
|
|
}
|
|
|
|
parseFunctionParams(node, allowModifiers) {
|
|
const typeParameters = this.tsTryParseTypeParameters();
|
|
if (typeParameters) node.typeParameters = typeParameters;
|
|
super.parseFunctionParams(node, allowModifiers);
|
|
}
|
|
|
|
parseVarId(decl, kind) {
|
|
super.parseVarId(decl, kind);
|
|
|
|
if (decl.id.type === "Identifier" && this.eat(types.bang)) {
|
|
decl.definite = true;
|
|
}
|
|
|
|
const type = this.tsTryParseTypeAnnotation();
|
|
|
|
if (type) {
|
|
decl.id.typeAnnotation = type;
|
|
this.resetEndLocation(decl.id);
|
|
}
|
|
}
|
|
|
|
parseAsyncArrowFromCallExpression(node, call) {
|
|
if (this.match(types.colon)) {
|
|
node.returnType = this.tsParseTypeAnnotation();
|
|
}
|
|
|
|
return super.parseAsyncArrowFromCallExpression(node, call);
|
|
}
|
|
|
|
parseMaybeAssign(...args) {
|
|
var _jsx, _jsx2, _typeCast, _jsx3, _typeCast2, _jsx4, _typeCast3;
|
|
|
|
let state;
|
|
let jsx;
|
|
let typeCast;
|
|
|
|
if (this.match(types.jsxTagStart)) {
|
|
state = this.state.clone();
|
|
jsx = this.tryParse(() => super.parseMaybeAssign(...args), state);
|
|
if (!jsx.error) return jsx.node;
|
|
const {
|
|
context
|
|
} = this.state;
|
|
|
|
if (context[context.length - 1] === types$1.j_oTag) {
|
|
context.length -= 2;
|
|
} else if (context[context.length - 1] === types$1.j_expr) {
|
|
context.length -= 1;
|
|
}
|
|
}
|
|
|
|
if (!((_jsx = jsx) == null ? void 0 : _jsx.error) && !this.isRelational("<")) {
|
|
return super.parseMaybeAssign(...args);
|
|
}
|
|
|
|
let typeParameters;
|
|
state = state || this.state.clone();
|
|
const arrow = this.tryParse(abort => {
|
|
var _typeParameters;
|
|
|
|
typeParameters = this.tsParseTypeParameters();
|
|
const expr = super.parseMaybeAssign(...args);
|
|
|
|
if (expr.type !== "ArrowFunctionExpression" || expr.extra && expr.extra.parenthesized) {
|
|
abort();
|
|
}
|
|
|
|
if (((_typeParameters = typeParameters) == null ? void 0 : _typeParameters.params.length) !== 0) {
|
|
this.resetStartLocationFromNode(expr, typeParameters);
|
|
}
|
|
|
|
expr.typeParameters = typeParameters;
|
|
return expr;
|
|
}, state);
|
|
if (!arrow.error && !arrow.aborted) return arrow.node;
|
|
|
|
if (!jsx) {
|
|
assert(!this.hasPlugin("jsx"));
|
|
typeCast = this.tryParse(() => super.parseMaybeAssign(...args), state);
|
|
if (!typeCast.error) return typeCast.node;
|
|
}
|
|
|
|
if ((_jsx2 = jsx) == null ? void 0 : _jsx2.node) {
|
|
this.state = jsx.failState;
|
|
return jsx.node;
|
|
}
|
|
|
|
if (arrow.node) {
|
|
this.state = arrow.failState;
|
|
return arrow.node;
|
|
}
|
|
|
|
if ((_typeCast = typeCast) == null ? void 0 : _typeCast.node) {
|
|
this.state = typeCast.failState;
|
|
return typeCast.node;
|
|
}
|
|
|
|
if ((_jsx3 = jsx) == null ? void 0 : _jsx3.thrown) throw jsx.error;
|
|
if (arrow.thrown) throw arrow.error;
|
|
if ((_typeCast2 = typeCast) == null ? void 0 : _typeCast2.thrown) throw typeCast.error;
|
|
throw ((_jsx4 = jsx) == null ? void 0 : _jsx4.error) || arrow.error || ((_typeCast3 = typeCast) == null ? void 0 : _typeCast3.error);
|
|
}
|
|
|
|
parseMaybeUnary(refExpressionErrors) {
|
|
if (!this.hasPlugin("jsx") && this.isRelational("<")) {
|
|
return this.tsParseTypeAssertion();
|
|
} else {
|
|
return super.parseMaybeUnary(refExpressionErrors);
|
|
}
|
|
}
|
|
|
|
parseArrow(node) {
|
|
if (this.match(types.colon)) {
|
|
const result = this.tryParse(abort => {
|
|
const returnType = this.tsParseTypeOrTypePredicateAnnotation(types.colon);
|
|
if (this.canInsertSemicolon() || !this.match(types.arrow)) abort();
|
|
return returnType;
|
|
});
|
|
if (result.aborted) return;
|
|
|
|
if (!result.thrown) {
|
|
if (result.error) this.state = result.failState;
|
|
node.returnType = result.node;
|
|
}
|
|
}
|
|
|
|
return super.parseArrow(node);
|
|
}
|
|
|
|
parseAssignableListItemTypes(param) {
|
|
if (this.eat(types.question)) {
|
|
if (param.type !== "Identifier") {
|
|
this.raise(param.start, TSErrors.PatternIsOptional);
|
|
}
|
|
|
|
param.optional = true;
|
|
}
|
|
|
|
const type = this.tsTryParseTypeAnnotation();
|
|
if (type) param.typeAnnotation = type;
|
|
this.resetEndLocation(param);
|
|
return param;
|
|
}
|
|
|
|
toAssignable(node) {
|
|
switch (node.type) {
|
|
case "TSTypeCastExpression":
|
|
return super.toAssignable(this.typeCastToParameter(node));
|
|
|
|
case "TSParameterProperty":
|
|
return super.toAssignable(node);
|
|
|
|
case "TSAsExpression":
|
|
case "TSNonNullExpression":
|
|
case "TSTypeAssertion":
|
|
node.expression = this.toAssignable(node.expression);
|
|
return node;
|
|
|
|
default:
|
|
return super.toAssignable(node);
|
|
}
|
|
}
|
|
|
|
checkLVal(expr, bindingType = BIND_NONE, checkClashes, contextDescription) {
|
|
switch (expr.type) {
|
|
case "TSTypeCastExpression":
|
|
return;
|
|
|
|
case "TSParameterProperty":
|
|
this.checkLVal(expr.parameter, bindingType, checkClashes, "parameter property");
|
|
return;
|
|
|
|
case "TSAsExpression":
|
|
case "TSNonNullExpression":
|
|
case "TSTypeAssertion":
|
|
this.checkLVal(expr.expression, bindingType, checkClashes, contextDescription);
|
|
return;
|
|
|
|
default:
|
|
super.checkLVal(expr, bindingType, checkClashes, contextDescription);
|
|
return;
|
|
}
|
|
}
|
|
|
|
parseBindingAtom() {
|
|
switch (this.state.type) {
|
|
case types._this:
|
|
return this.parseIdentifier(true);
|
|
|
|
default:
|
|
return super.parseBindingAtom();
|
|
}
|
|
}
|
|
|
|
parseMaybeDecoratorArguments(expr) {
|
|
if (this.isRelational("<")) {
|
|
const typeArguments = this.tsParseTypeArguments();
|
|
|
|
if (this.match(types.parenL)) {
|
|
const call = super.parseMaybeDecoratorArguments(expr);
|
|
call.typeParameters = typeArguments;
|
|
return call;
|
|
}
|
|
|
|
this.unexpected(this.state.start, types.parenL);
|
|
}
|
|
|
|
return super.parseMaybeDecoratorArguments(expr);
|
|
}
|
|
|
|
isClassMethod() {
|
|
return this.isRelational("<") || super.isClassMethod();
|
|
}
|
|
|
|
isClassProperty() {
|
|
return this.match(types.bang) || this.match(types.colon) || super.isClassProperty();
|
|
}
|
|
|
|
parseMaybeDefault(...args) {
|
|
const node = super.parseMaybeDefault(...args);
|
|
|
|
if (node.type === "AssignmentPattern" && node.typeAnnotation && node.right.start < node.typeAnnotation.start) {
|
|
this.raise(node.typeAnnotation.start, TSErrors.TypeAnnotationAfterAssign);
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
getTokenFromCode(code) {
|
|
if (this.state.inType && (code === 62 || code === 60)) {
|
|
return this.finishOp(types.relational, 1);
|
|
} else {
|
|
return super.getTokenFromCode(code);
|
|
}
|
|
}
|
|
|
|
toAssignableList(exprList) {
|
|
for (let i = 0; i < exprList.length; i++) {
|
|
const expr = exprList[i];
|
|
if (!expr) continue;
|
|
|
|
switch (expr.type) {
|
|
case "TSTypeCastExpression":
|
|
exprList[i] = this.typeCastToParameter(expr);
|
|
break;
|
|
|
|
case "TSAsExpression":
|
|
case "TSTypeAssertion":
|
|
if (!this.state.maybeInArrowParameters) {
|
|
exprList[i] = this.typeCastToParameter(expr);
|
|
} else {
|
|
this.raise(expr.start, TSErrors.UnexpectedTypeCastInParameter);
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
return super.toAssignableList(...arguments);
|
|
}
|
|
|
|
typeCastToParameter(node) {
|
|
node.expression.typeAnnotation = node.typeAnnotation;
|
|
this.resetEndLocation(node.expression, node.typeAnnotation.end, node.typeAnnotation.loc.end);
|
|
return node.expression;
|
|
}
|
|
|
|
toReferencedList(exprList, isInParens) {
|
|
for (let i = 0; i < exprList.length; i++) {
|
|
const expr = exprList[i];
|
|
|
|
if ((expr == null ? void 0 : expr.type) === "TSTypeCastExpression") {
|
|
this.raise(expr.start, TSErrors.UnexpectedTypeAnnotation);
|
|
}
|
|
}
|
|
|
|
return exprList;
|
|
}
|
|
|
|
shouldParseArrow() {
|
|
return this.match(types.colon) || super.shouldParseArrow();
|
|
}
|
|
|
|
shouldParseAsyncArrow() {
|
|
return this.match(types.colon) || super.shouldParseAsyncArrow();
|
|
}
|
|
|
|
canHaveLeadingDecorator() {
|
|
return super.canHaveLeadingDecorator() || this.isAbstractClass();
|
|
}
|
|
|
|
jsxParseOpeningElementAfterName(node) {
|
|
if (this.isRelational("<")) {
|
|
const typeArguments = this.tsTryParseAndCatch(() => this.tsParseTypeArguments());
|
|
if (typeArguments) node.typeParameters = typeArguments;
|
|
}
|
|
|
|
return super.jsxParseOpeningElementAfterName(node);
|
|
}
|
|
|
|
getGetterSetterExpectedParamCount(method) {
|
|
const baseCount = super.getGetterSetterExpectedParamCount(method);
|
|
const firstParam = method.params[0];
|
|
const hasContextParam = firstParam && firstParam.type === "Identifier" && firstParam.name === "this";
|
|
return hasContextParam ? baseCount + 1 : baseCount;
|
|
}
|
|
|
|
});
|
|
|
|
types.placeholder = new TokenType("%%", {
|
|
startsExpr: true
|
|
});
|
|
var placeholders = (superClass => class extends superClass {
|
|
parsePlaceholder(expectedNode) {
|
|
if (this.match(types.placeholder)) {
|
|
const node = this.startNode();
|
|
this.next();
|
|
this.assertNoSpace("Unexpected space in placeholder.");
|
|
node.name = super.parseIdentifier(true);
|
|
this.assertNoSpace("Unexpected space in placeholder.");
|
|
this.expect(types.placeholder);
|
|
return this.finishPlaceholder(node, expectedNode);
|
|
}
|
|
}
|
|
|
|
finishPlaceholder(node, expectedNode) {
|
|
const isFinished = !!(node.expectedNode && node.type === "Placeholder");
|
|
node.expectedNode = expectedNode;
|
|
return isFinished ? node : this.finishNode(node, "Placeholder");
|
|
}
|
|
|
|
getTokenFromCode(code) {
|
|
if (code === 37 && this.input.charCodeAt(this.state.pos + 1) === 37) {
|
|
return this.finishOp(types.placeholder, 2);
|
|
}
|
|
|
|
return super.getTokenFromCode(...arguments);
|
|
}
|
|
|
|
parseExprAtom() {
|
|
return this.parsePlaceholder("Expression") || super.parseExprAtom(...arguments);
|
|
}
|
|
|
|
parseIdentifier() {
|
|
return this.parsePlaceholder("Identifier") || super.parseIdentifier(...arguments);
|
|
}
|
|
|
|
checkReservedWord(word) {
|
|
if (word !== undefined) super.checkReservedWord(...arguments);
|
|
}
|
|
|
|
parseBindingAtom() {
|
|
return this.parsePlaceholder("Pattern") || super.parseBindingAtom(...arguments);
|
|
}
|
|
|
|
checkLVal(expr) {
|
|
if (expr.type !== "Placeholder") super.checkLVal(...arguments);
|
|
}
|
|
|
|
toAssignable(node) {
|
|
if (node && node.type === "Placeholder" && node.expectedNode === "Expression") {
|
|
node.expectedNode = "Pattern";
|
|
return node;
|
|
}
|
|
|
|
return super.toAssignable(...arguments);
|
|
}
|
|
|
|
verifyBreakContinue(node) {
|
|
if (node.label && node.label.type === "Placeholder") return;
|
|
super.verifyBreakContinue(...arguments);
|
|
}
|
|
|
|
parseExpressionStatement(node, expr) {
|
|
if (expr.type !== "Placeholder" || expr.extra && expr.extra.parenthesized) {
|
|
return super.parseExpressionStatement(...arguments);
|
|
}
|
|
|
|
if (this.match(types.colon)) {
|
|
const stmt = node;
|
|
stmt.label = this.finishPlaceholder(expr, "Identifier");
|
|
this.next();
|
|
stmt.body = this.parseStatement("label");
|
|
return this.finishNode(stmt, "LabeledStatement");
|
|
}
|
|
|
|
this.semicolon();
|
|
node.name = expr.name;
|
|
return this.finishPlaceholder(node, "Statement");
|
|
}
|
|
|
|
parseBlock() {
|
|
return this.parsePlaceholder("BlockStatement") || super.parseBlock(...arguments);
|
|
}
|
|
|
|
parseFunctionId() {
|
|
return this.parsePlaceholder("Identifier") || super.parseFunctionId(...arguments);
|
|
}
|
|
|
|
parseClass(node, isStatement, optionalId) {
|
|
const type = isStatement ? "ClassDeclaration" : "ClassExpression";
|
|
this.next();
|
|
this.takeDecorators(node);
|
|
const placeholder = this.parsePlaceholder("Identifier");
|
|
|
|
if (placeholder) {
|
|
if (this.match(types._extends) || this.match(types.placeholder) || this.match(types.braceL)) {
|
|
node.id = placeholder;
|
|
} else if (optionalId || !isStatement) {
|
|
node.id = null;
|
|
node.body = this.finishPlaceholder(placeholder, "ClassBody");
|
|
return this.finishNode(node, type);
|
|
} else {
|
|
this.unexpected(null, "A class name is required");
|
|
}
|
|
} else {
|
|
this.parseClassId(node, isStatement, optionalId);
|
|
}
|
|
|
|
this.parseClassSuper(node);
|
|
node.body = this.parsePlaceholder("ClassBody") || this.parseClassBody(!!node.superClass);
|
|
return this.finishNode(node, type);
|
|
}
|
|
|
|
parseExport(node) {
|
|
const placeholder = this.parsePlaceholder("Identifier");
|
|
if (!placeholder) return super.parseExport(...arguments);
|
|
|
|
if (!this.isContextual("from") && !this.match(types.comma)) {
|
|
node.specifiers = [];
|
|
node.source = null;
|
|
node.declaration = this.finishPlaceholder(placeholder, "Declaration");
|
|
return this.finishNode(node, "ExportNamedDeclaration");
|
|
}
|
|
|
|
this.expectPlugin("exportDefaultFrom");
|
|
const specifier = this.startNode();
|
|
specifier.exported = placeholder;
|
|
node.specifiers = [this.finishNode(specifier, "ExportDefaultSpecifier")];
|
|
return super.parseExport(node);
|
|
}
|
|
|
|
maybeParseExportDefaultSpecifier(node) {
|
|
if (node.specifiers && node.specifiers.length > 0) {
|
|
return true;
|
|
}
|
|
|
|
return super.maybeParseExportDefaultSpecifier(...arguments);
|
|
}
|
|
|
|
checkExport(node) {
|
|
const {
|
|
specifiers
|
|
} = node;
|
|
|
|
if (specifiers == null ? void 0 : specifiers.length) {
|
|
node.specifiers = specifiers.filter(node => node.exported.type === "Placeholder");
|
|
}
|
|
|
|
super.checkExport(node);
|
|
node.specifiers = specifiers;
|
|
}
|
|
|
|
parseImport(node) {
|
|
const placeholder = this.parsePlaceholder("Identifier");
|
|
if (!placeholder) return super.parseImport(...arguments);
|
|
node.specifiers = [];
|
|
|
|
if (!this.isContextual("from") && !this.match(types.comma)) {
|
|
node.source = this.finishPlaceholder(placeholder, "StringLiteral");
|
|
this.semicolon();
|
|
return this.finishNode(node, "ImportDeclaration");
|
|
}
|
|
|
|
const specifier = this.startNodeAtNode(placeholder);
|
|
specifier.local = placeholder;
|
|
this.finishNode(specifier, "ImportDefaultSpecifier");
|
|
node.specifiers.push(specifier);
|
|
|
|
if (this.eat(types.comma)) {
|
|
const hasStarImport = this.maybeParseStarImportSpecifier(node);
|
|
if (!hasStarImport) this.parseNamedImportSpecifiers(node);
|
|
}
|
|
|
|
this.expectContextual("from");
|
|
node.source = this.parseImportSource();
|
|
this.semicolon();
|
|
return this.finishNode(node, "ImportDeclaration");
|
|
}
|
|
|
|
parseImportSource() {
|
|
return this.parsePlaceholder("StringLiteral") || super.parseImportSource(...arguments);
|
|
}
|
|
|
|
});
|
|
|
|
var v8intrinsic = (superClass => class extends superClass {
|
|
parseV8Intrinsic() {
|
|
if (this.match(types.modulo)) {
|
|
const v8IntrinsicStart = this.state.start;
|
|
const node = this.startNode();
|
|
this.eat(types.modulo);
|
|
|
|
if (this.match(types.name)) {
|
|
const name = this.parseIdentifierName(this.state.start);
|
|
const identifier = this.createIdentifier(node, name);
|
|
identifier.type = "V8IntrinsicIdentifier";
|
|
|
|
if (this.match(types.parenL)) {
|
|
return identifier;
|
|
}
|
|
}
|
|
|
|
this.unexpected(v8IntrinsicStart);
|
|
}
|
|
}
|
|
|
|
parseExprAtom() {
|
|
return this.parseV8Intrinsic() || super.parseExprAtom(...arguments);
|
|
}
|
|
|
|
});
|
|
|
|
function hasPlugin(plugins, name) {
|
|
return plugins.some(plugin => {
|
|
if (Array.isArray(plugin)) {
|
|
return plugin[0] === name;
|
|
} else {
|
|
return plugin === name;
|
|
}
|
|
});
|
|
}
|
|
function getPluginOption(plugins, name, option) {
|
|
const plugin = plugins.find(plugin => {
|
|
if (Array.isArray(plugin)) {
|
|
return plugin[0] === name;
|
|
} else {
|
|
return plugin === name;
|
|
}
|
|
});
|
|
|
|
if (plugin && Array.isArray(plugin)) {
|
|
return plugin[1][option];
|
|
}
|
|
|
|
return null;
|
|
}
|
|
const PIPELINE_PROPOSALS = ["minimal", "smart", "fsharp"];
|
|
const RECORD_AND_TUPLE_SYNTAX_TYPES = ["hash", "bar"];
|
|
function validatePlugins(plugins) {
|
|
if (hasPlugin(plugins, "decorators")) {
|
|
if (hasPlugin(plugins, "decorators-legacy")) {
|
|
throw new Error("Cannot use the decorators and decorators-legacy plugin together");
|
|
}
|
|
|
|
const decoratorsBeforeExport = getPluginOption(plugins, "decorators", "decoratorsBeforeExport");
|
|
|
|
if (decoratorsBeforeExport == null) {
|
|
throw new Error("The 'decorators' plugin requires a 'decoratorsBeforeExport' option," + " whose value must be a boolean. If you are migrating from" + " Babylon/Babel 6 or want to use the old decorators proposal, you" + " should use the 'decorators-legacy' plugin instead of 'decorators'.");
|
|
} else if (typeof decoratorsBeforeExport !== "boolean") {
|
|
throw new Error("'decoratorsBeforeExport' must be a boolean.");
|
|
}
|
|
}
|
|
|
|
if (hasPlugin(plugins, "flow") && hasPlugin(plugins, "typescript")) {
|
|
throw new Error("Cannot combine flow and typescript plugins.");
|
|
}
|
|
|
|
if (hasPlugin(plugins, "placeholders") && hasPlugin(plugins, "v8intrinsic")) {
|
|
throw new Error("Cannot combine placeholders and v8intrinsic plugins.");
|
|
}
|
|
|
|
if (hasPlugin(plugins, "pipelineOperator") && !PIPELINE_PROPOSALS.includes(getPluginOption(plugins, "pipelineOperator", "proposal"))) {
|
|
throw new Error("'pipelineOperator' requires 'proposal' option whose value should be one of: " + PIPELINE_PROPOSALS.map(p => `'${p}'`).join(", "));
|
|
}
|
|
|
|
if (hasPlugin(plugins, "moduleAttributes")) {
|
|
const moduleAttributesVerionPluginOption = getPluginOption(plugins, "moduleAttributes", "version");
|
|
|
|
if (moduleAttributesVerionPluginOption !== "may-2020") {
|
|
throw new Error("The 'moduleAttributes' plugin requires a 'version' option," + " representing the last proposal update. Currently, the" + " only supported value is 'may-2020'.");
|
|
}
|
|
}
|
|
|
|
if (hasPlugin(plugins, "recordAndTuple") && !RECORD_AND_TUPLE_SYNTAX_TYPES.includes(getPluginOption(plugins, "recordAndTuple", "syntaxType"))) {
|
|
throw new Error("'recordAndTuple' requires 'syntaxType' option whose value should be one of: " + RECORD_AND_TUPLE_SYNTAX_TYPES.map(p => `'${p}'`).join(", "));
|
|
}
|
|
}
|
|
const mixinPlugins = {
|
|
estree,
|
|
jsx,
|
|
flow,
|
|
typescript,
|
|
v8intrinsic,
|
|
placeholders
|
|
};
|
|
const mixinPluginNames = Object.keys(mixinPlugins);
|
|
|
|
const defaultOptions = {
|
|
sourceType: "script",
|
|
sourceFilename: undefined,
|
|
startLine: 1,
|
|
allowAwaitOutsideFunction: false,
|
|
allowReturnOutsideFunction: false,
|
|
allowImportExportEverywhere: false,
|
|
allowSuperOutsideMethod: false,
|
|
allowUndeclaredExports: false,
|
|
plugins: [],
|
|
strictMode: null,
|
|
ranges: false,
|
|
tokens: false,
|
|
createParenthesizedExpressions: false,
|
|
errorRecovery: false
|
|
};
|
|
function getOptions(opts) {
|
|
const options = {};
|
|
|
|
for (let _i = 0, _Object$keys = Object.keys(defaultOptions); _i < _Object$keys.length; _i++) {
|
|
const key = _Object$keys[_i];
|
|
options[key] = opts && opts[key] != null ? opts[key] : defaultOptions[key];
|
|
}
|
|
|
|
return options;
|
|
}
|
|
|
|
class State {
|
|
constructor() {
|
|
this.errors = [];
|
|
this.potentialArrowAt = -1;
|
|
this.noArrowAt = [];
|
|
this.noArrowParamsConversionAt = [];
|
|
this.inParameters = false;
|
|
this.maybeInArrowParameters = false;
|
|
this.maybeInAsyncArrowHead = false;
|
|
this.inPipeline = false;
|
|
this.inType = false;
|
|
this.noAnonFunctionType = false;
|
|
this.inPropertyName = false;
|
|
this.hasFlowComment = false;
|
|
this.isIterator = false;
|
|
this.topicContext = {
|
|
maxNumOfResolvableTopics: 0,
|
|
maxTopicIndex: null
|
|
};
|
|
this.soloAwait = false;
|
|
this.inFSharpPipelineDirectBody = false;
|
|
this.labels = [];
|
|
this.decoratorStack = [[]];
|
|
this.yieldPos = -1;
|
|
this.awaitPos = -1;
|
|
this.comments = [];
|
|
this.trailingComments = [];
|
|
this.leadingComments = [];
|
|
this.commentStack = [];
|
|
this.commentPreviousNode = null;
|
|
this.pos = 0;
|
|
this.lineStart = 0;
|
|
this.type = types.eof;
|
|
this.value = null;
|
|
this.start = 0;
|
|
this.end = 0;
|
|
this.lastTokEndLoc = null;
|
|
this.lastTokStartLoc = null;
|
|
this.lastTokStart = 0;
|
|
this.lastTokEnd = 0;
|
|
this.context = [types$1.braceStatement];
|
|
this.exprAllowed = true;
|
|
this.containsEsc = false;
|
|
this.octalPositions = [];
|
|
this.exportedIdentifiers = [];
|
|
this.tokensLength = 0;
|
|
}
|
|
|
|
init(options) {
|
|
this.strict = options.strictMode === false ? false : options.sourceType === "module";
|
|
this.curLine = options.startLine;
|
|
this.startLoc = this.endLoc = this.curPosition();
|
|
}
|
|
|
|
curPosition() {
|
|
return new Position(this.curLine, this.pos - this.lineStart);
|
|
}
|
|
|
|
clone(skipArrays) {
|
|
const state = new State();
|
|
const keys = Object.keys(this);
|
|
|
|
for (let i = 0, length = keys.length; i < length; i++) {
|
|
const key = keys[i];
|
|
let val = this[key];
|
|
|
|
if (!skipArrays && Array.isArray(val)) {
|
|
val = val.slice();
|
|
}
|
|
|
|
state[key] = val;
|
|
}
|
|
|
|
return state;
|
|
}
|
|
|
|
}
|
|
|
|
var _isDigit = function isDigit(code) {
|
|
return code >= 48 && code <= 57;
|
|
};
|
|
const VALID_REGEX_FLAGS = new Set(["g", "m", "s", "i", "y", "u"]);
|
|
const forbiddenNumericSeparatorSiblings = {
|
|
decBinOct: [46, 66, 69, 79, 95, 98, 101, 111],
|
|
hex: [46, 88, 95, 120]
|
|
};
|
|
const allowedNumericSeparatorSiblings = {};
|
|
allowedNumericSeparatorSiblings.bin = [48, 49];
|
|
allowedNumericSeparatorSiblings.oct = [...allowedNumericSeparatorSiblings.bin, 50, 51, 52, 53, 54, 55];
|
|
allowedNumericSeparatorSiblings.dec = [...allowedNumericSeparatorSiblings.oct, 56, 57];
|
|
allowedNumericSeparatorSiblings.hex = [...allowedNumericSeparatorSiblings.dec, 65, 66, 67, 68, 69, 70, 97, 98, 99, 100, 101, 102];
|
|
class Token {
|
|
constructor(state) {
|
|
this.type = state.type;
|
|
this.value = state.value;
|
|
this.start = state.start;
|
|
this.end = state.end;
|
|
this.loc = new SourceLocation(state.startLoc, state.endLoc);
|
|
}
|
|
|
|
}
|
|
class Tokenizer extends ParserError {
|
|
constructor(options, input) {
|
|
super();
|
|
this.tokens = [];
|
|
this.state = new State();
|
|
this.state.init(options);
|
|
this.input = input;
|
|
this.length = input.length;
|
|
this.isLookahead = false;
|
|
}
|
|
|
|
pushToken(token) {
|
|
this.tokens.length = this.state.tokensLength;
|
|
this.tokens.push(token);
|
|
++this.state.tokensLength;
|
|
}
|
|
|
|
next() {
|
|
if (!this.isLookahead) {
|
|
this.checkKeywordEscapes();
|
|
|
|
if (this.options.tokens) {
|
|
this.pushToken(new Token(this.state));
|
|
}
|
|
}
|
|
|
|
this.state.lastTokEnd = this.state.end;
|
|
this.state.lastTokStart = this.state.start;
|
|
this.state.lastTokEndLoc = this.state.endLoc;
|
|
this.state.lastTokStartLoc = this.state.startLoc;
|
|
this.nextToken();
|
|
}
|
|
|
|
eat(type) {
|
|
if (this.match(type)) {
|
|
this.next();
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
match(type) {
|
|
return this.state.type === type;
|
|
}
|
|
|
|
lookahead() {
|
|
const old = this.state;
|
|
this.state = old.clone(true);
|
|
this.isLookahead = true;
|
|
this.next();
|
|
this.isLookahead = false;
|
|
const curr = this.state;
|
|
this.state = old;
|
|
return curr;
|
|
}
|
|
|
|
nextTokenStart() {
|
|
const thisTokEnd = this.state.pos;
|
|
skipWhiteSpace.lastIndex = thisTokEnd;
|
|
const skip = skipWhiteSpace.exec(this.input);
|
|
return thisTokEnd + skip[0].length;
|
|
}
|
|
|
|
lookaheadCharCode() {
|
|
return this.input.charCodeAt(this.nextTokenStart());
|
|
}
|
|
|
|
setStrict(strict) {
|
|
this.state.strict = strict;
|
|
if (!this.match(types.num) && !this.match(types.string)) return;
|
|
this.state.pos = this.state.start;
|
|
|
|
while (this.state.pos < this.state.lineStart) {
|
|
this.state.lineStart = this.input.lastIndexOf("\n", this.state.lineStart - 2) + 1;
|
|
--this.state.curLine;
|
|
}
|
|
|
|
this.nextToken();
|
|
}
|
|
|
|
curContext() {
|
|
return this.state.context[this.state.context.length - 1];
|
|
}
|
|
|
|
nextToken() {
|
|
const curContext = this.curContext();
|
|
if (!(curContext == null ? void 0 : curContext.preserveSpace)) this.skipSpace();
|
|
this.state.octalPositions = [];
|
|
this.state.start = this.state.pos;
|
|
this.state.startLoc = this.state.curPosition();
|
|
|
|
if (this.state.pos >= this.length) {
|
|
this.finishToken(types.eof);
|
|
return;
|
|
}
|
|
|
|
const override = curContext == null ? void 0 : curContext.override;
|
|
|
|
if (override) {
|
|
override(this);
|
|
} else {
|
|
this.getTokenFromCode(this.input.codePointAt(this.state.pos));
|
|
}
|
|
}
|
|
|
|
pushComment(block, text, start, end, startLoc, endLoc) {
|
|
const comment = {
|
|
type: block ? "CommentBlock" : "CommentLine",
|
|
value: text,
|
|
start: start,
|
|
end: end,
|
|
loc: new SourceLocation(startLoc, endLoc)
|
|
};
|
|
if (this.options.tokens) this.pushToken(comment);
|
|
this.state.comments.push(comment);
|
|
this.addComment(comment);
|
|
}
|
|
|
|
skipBlockComment() {
|
|
const startLoc = this.state.curPosition();
|
|
const start = this.state.pos;
|
|
const end = this.input.indexOf("*/", this.state.pos + 2);
|
|
if (end === -1) throw this.raise(start, ErrorMessages.UnterminatedComment);
|
|
this.state.pos = end + 2;
|
|
lineBreakG.lastIndex = start;
|
|
let match;
|
|
|
|
while ((match = lineBreakG.exec(this.input)) && match.index < this.state.pos) {
|
|
++this.state.curLine;
|
|
this.state.lineStart = match.index + match[0].length;
|
|
}
|
|
|
|
if (this.isLookahead) return;
|
|
this.pushComment(true, this.input.slice(start + 2, end), start, this.state.pos, startLoc, this.state.curPosition());
|
|
}
|
|
|
|
skipLineComment(startSkip) {
|
|
const start = this.state.pos;
|
|
const startLoc = this.state.curPosition();
|
|
let ch = this.input.charCodeAt(this.state.pos += startSkip);
|
|
|
|
if (this.state.pos < this.length) {
|
|
while (!isNewLine(ch) && ++this.state.pos < this.length) {
|
|
ch = this.input.charCodeAt(this.state.pos);
|
|
}
|
|
}
|
|
|
|
if (this.isLookahead) return;
|
|
this.pushComment(false, this.input.slice(start + startSkip, this.state.pos), start, this.state.pos, startLoc, this.state.curPosition());
|
|
}
|
|
|
|
skipSpace() {
|
|
loop: while (this.state.pos < this.length) {
|
|
const ch = this.input.charCodeAt(this.state.pos);
|
|
|
|
switch (ch) {
|
|
case 32:
|
|
case 160:
|
|
case 9:
|
|
++this.state.pos;
|
|
break;
|
|
|
|
case 13:
|
|
if (this.input.charCodeAt(this.state.pos + 1) === 10) {
|
|
++this.state.pos;
|
|
}
|
|
|
|
case 10:
|
|
case 8232:
|
|
case 8233:
|
|
++this.state.pos;
|
|
++this.state.curLine;
|
|
this.state.lineStart = this.state.pos;
|
|
break;
|
|
|
|
case 47:
|
|
switch (this.input.charCodeAt(this.state.pos + 1)) {
|
|
case 42:
|
|
this.skipBlockComment();
|
|
break;
|
|
|
|
case 47:
|
|
this.skipLineComment(2);
|
|
break;
|
|
|
|
default:
|
|
break loop;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
if (isWhitespace(ch)) {
|
|
++this.state.pos;
|
|
} else {
|
|
break loop;
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
finishToken(type, val) {
|
|
this.state.end = this.state.pos;
|
|
this.state.endLoc = this.state.curPosition();
|
|
const prevType = this.state.type;
|
|
this.state.type = type;
|
|
this.state.value = val;
|
|
if (!this.isLookahead) this.updateContext(prevType);
|
|
}
|
|
|
|
readToken_numberSign() {
|
|
if (this.state.pos === 0 && this.readToken_interpreter()) {
|
|
return;
|
|
}
|
|
|
|
const nextPos = this.state.pos + 1;
|
|
const next = this.input.charCodeAt(nextPos);
|
|
|
|
if (next >= 48 && next <= 57) {
|
|
throw this.raise(this.state.pos, ErrorMessages.UnexpectedDigitAfterHash);
|
|
}
|
|
|
|
if (next === 123 || next === 91 && this.hasPlugin("recordAndTuple")) {
|
|
this.expectPlugin("recordAndTuple");
|
|
|
|
if (this.getPluginOption("recordAndTuple", "syntaxType") !== "hash") {
|
|
throw this.raise(this.state.pos, next === 123 ? ErrorMessages.RecordExpressionHashIncorrectStartSyntaxType : ErrorMessages.TupleExpressionHashIncorrectStartSyntaxType);
|
|
}
|
|
|
|
if (next === 123) {
|
|
this.finishToken(types.braceHashL);
|
|
} else {
|
|
this.finishToken(types.bracketHashL);
|
|
}
|
|
|
|
this.state.pos += 2;
|
|
} else {
|
|
this.finishOp(types.hash, 1);
|
|
}
|
|
}
|
|
|
|
readToken_dot() {
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (next >= 48 && next <= 57) {
|
|
this.readNumber(true);
|
|
return;
|
|
}
|
|
|
|
if (next === 46 && this.input.charCodeAt(this.state.pos + 2) === 46) {
|
|
this.state.pos += 3;
|
|
this.finishToken(types.ellipsis);
|
|
} else {
|
|
++this.state.pos;
|
|
this.finishToken(types.dot);
|
|
}
|
|
}
|
|
|
|
readToken_slash() {
|
|
if (this.state.exprAllowed && !this.state.inType) {
|
|
++this.state.pos;
|
|
this.readRegexp();
|
|
return;
|
|
}
|
|
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (next === 61) {
|
|
this.finishOp(types.assign, 2);
|
|
} else {
|
|
this.finishOp(types.slash, 1);
|
|
}
|
|
}
|
|
|
|
readToken_interpreter() {
|
|
if (this.state.pos !== 0 || this.length < 2) return false;
|
|
let ch = this.input.charCodeAt(this.state.pos + 1);
|
|
if (ch !== 33) return false;
|
|
const start = this.state.pos;
|
|
this.state.pos += 1;
|
|
|
|
while (!isNewLine(ch) && ++this.state.pos < this.length) {
|
|
ch = this.input.charCodeAt(this.state.pos);
|
|
}
|
|
|
|
const value = this.input.slice(start + 2, this.state.pos);
|
|
this.finishToken(types.interpreterDirective, value);
|
|
return true;
|
|
}
|
|
|
|
readToken_mult_modulo(code) {
|
|
let type = code === 42 ? types.star : types.modulo;
|
|
let width = 1;
|
|
let next = this.input.charCodeAt(this.state.pos + 1);
|
|
const exprAllowed = this.state.exprAllowed;
|
|
|
|
if (code === 42 && next === 42) {
|
|
width++;
|
|
next = this.input.charCodeAt(this.state.pos + 2);
|
|
type = types.exponent;
|
|
}
|
|
|
|
if (next === 61 && !exprAllowed) {
|
|
width++;
|
|
type = types.assign;
|
|
}
|
|
|
|
this.finishOp(type, width);
|
|
}
|
|
|
|
readToken_pipe_amp(code) {
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (next === code) {
|
|
if (this.input.charCodeAt(this.state.pos + 2) === 61) {
|
|
this.finishOp(types.assign, 3);
|
|
} else {
|
|
this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (code === 124) {
|
|
if (next === 62) {
|
|
this.finishOp(types.pipeline, 2);
|
|
return;
|
|
}
|
|
|
|
if (this.hasPlugin("recordAndTuple") && next === 125) {
|
|
if (this.getPluginOption("recordAndTuple", "syntaxType") !== "bar") {
|
|
throw this.raise(this.state.pos, ErrorMessages.RecordExpressionBarIncorrectEndSyntaxType);
|
|
}
|
|
|
|
this.finishOp(types.braceBarR, 2);
|
|
return;
|
|
}
|
|
|
|
if (this.hasPlugin("recordAndTuple") && next === 93) {
|
|
if (this.getPluginOption("recordAndTuple", "syntaxType") !== "bar") {
|
|
throw this.raise(this.state.pos, ErrorMessages.TupleExpressionBarIncorrectEndSyntaxType);
|
|
}
|
|
|
|
this.finishOp(types.bracketBarR, 2);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (next === 61) {
|
|
this.finishOp(types.assign, 2);
|
|
return;
|
|
}
|
|
|
|
this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1);
|
|
}
|
|
|
|
readToken_caret() {
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (next === 61) {
|
|
this.finishOp(types.assign, 2);
|
|
} else {
|
|
this.finishOp(types.bitwiseXOR, 1);
|
|
}
|
|
}
|
|
|
|
readToken_plus_min(code) {
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (next === code) {
|
|
if (next === 45 && !this.inModule && this.input.charCodeAt(this.state.pos + 2) === 62 && (this.state.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.pos)))) {
|
|
this.skipLineComment(3);
|
|
this.skipSpace();
|
|
this.nextToken();
|
|
return;
|
|
}
|
|
|
|
this.finishOp(types.incDec, 2);
|
|
return;
|
|
}
|
|
|
|
if (next === 61) {
|
|
this.finishOp(types.assign, 2);
|
|
} else {
|
|
this.finishOp(types.plusMin, 1);
|
|
}
|
|
}
|
|
|
|
readToken_lt_gt(code) {
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
let size = 1;
|
|
|
|
if (next === code) {
|
|
size = code === 62 && this.input.charCodeAt(this.state.pos + 2) === 62 ? 3 : 2;
|
|
|
|
if (this.input.charCodeAt(this.state.pos + size) === 61) {
|
|
this.finishOp(types.assign, size + 1);
|
|
return;
|
|
}
|
|
|
|
this.finishOp(types.bitShift, size);
|
|
return;
|
|
}
|
|
|
|
if (next === 33 && code === 60 && !this.inModule && this.input.charCodeAt(this.state.pos + 2) === 45 && this.input.charCodeAt(this.state.pos + 3) === 45) {
|
|
this.skipLineComment(4);
|
|
this.skipSpace();
|
|
this.nextToken();
|
|
return;
|
|
}
|
|
|
|
if (next === 61) {
|
|
size = 2;
|
|
}
|
|
|
|
this.finishOp(types.relational, size);
|
|
}
|
|
|
|
readToken_eq_excl(code) {
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (next === 61) {
|
|
this.finishOp(types.equality, this.input.charCodeAt(this.state.pos + 2) === 61 ? 3 : 2);
|
|
return;
|
|
}
|
|
|
|
if (code === 61 && next === 62) {
|
|
this.state.pos += 2;
|
|
this.finishToken(types.arrow);
|
|
return;
|
|
}
|
|
|
|
this.finishOp(code === 61 ? types.eq : types.bang, 1);
|
|
}
|
|
|
|
readToken_question() {
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
const next2 = this.input.charCodeAt(this.state.pos + 2);
|
|
|
|
if (next === 63 && !this.state.inType) {
|
|
if (next2 === 61) {
|
|
this.finishOp(types.assign, 3);
|
|
} else {
|
|
this.finishOp(types.nullishCoalescing, 2);
|
|
}
|
|
} else if (next === 46 && !(next2 >= 48 && next2 <= 57)) {
|
|
this.state.pos += 2;
|
|
this.finishToken(types.questionDot);
|
|
} else {
|
|
++this.state.pos;
|
|
this.finishToken(types.question);
|
|
}
|
|
}
|
|
|
|
getTokenFromCode(code) {
|
|
switch (code) {
|
|
case 46:
|
|
this.readToken_dot();
|
|
return;
|
|
|
|
case 40:
|
|
++this.state.pos;
|
|
this.finishToken(types.parenL);
|
|
return;
|
|
|
|
case 41:
|
|
++this.state.pos;
|
|
this.finishToken(types.parenR);
|
|
return;
|
|
|
|
case 59:
|
|
++this.state.pos;
|
|
this.finishToken(types.semi);
|
|
return;
|
|
|
|
case 44:
|
|
++this.state.pos;
|
|
this.finishToken(types.comma);
|
|
return;
|
|
|
|
case 91:
|
|
if (this.hasPlugin("recordAndTuple") && this.input.charCodeAt(this.state.pos + 1) === 124) {
|
|
if (this.getPluginOption("recordAndTuple", "syntaxType") !== "bar") {
|
|
throw this.raise(this.state.pos, ErrorMessages.TupleExpressionBarIncorrectStartSyntaxType);
|
|
}
|
|
|
|
this.finishToken(types.bracketBarL);
|
|
this.state.pos += 2;
|
|
} else {
|
|
++this.state.pos;
|
|
this.finishToken(types.bracketL);
|
|
}
|
|
|
|
return;
|
|
|
|
case 93:
|
|
++this.state.pos;
|
|
this.finishToken(types.bracketR);
|
|
return;
|
|
|
|
case 123:
|
|
if (this.hasPlugin("recordAndTuple") && this.input.charCodeAt(this.state.pos + 1) === 124) {
|
|
if (this.getPluginOption("recordAndTuple", "syntaxType") !== "bar") {
|
|
throw this.raise(this.state.pos, ErrorMessages.RecordExpressionBarIncorrectStartSyntaxType);
|
|
}
|
|
|
|
this.finishToken(types.braceBarL);
|
|
this.state.pos += 2;
|
|
} else {
|
|
++this.state.pos;
|
|
this.finishToken(types.braceL);
|
|
}
|
|
|
|
return;
|
|
|
|
case 125:
|
|
++this.state.pos;
|
|
this.finishToken(types.braceR);
|
|
return;
|
|
|
|
case 58:
|
|
if (this.hasPlugin("functionBind") && this.input.charCodeAt(this.state.pos + 1) === 58) {
|
|
this.finishOp(types.doubleColon, 2);
|
|
} else {
|
|
++this.state.pos;
|
|
this.finishToken(types.colon);
|
|
}
|
|
|
|
return;
|
|
|
|
case 63:
|
|
this.readToken_question();
|
|
return;
|
|
|
|
case 96:
|
|
++this.state.pos;
|
|
this.finishToken(types.backQuote);
|
|
return;
|
|
|
|
case 48:
|
|
{
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (next === 120 || next === 88) {
|
|
this.readRadixNumber(16);
|
|
return;
|
|
}
|
|
|
|
if (next === 111 || next === 79) {
|
|
this.readRadixNumber(8);
|
|
return;
|
|
}
|
|
|
|
if (next === 98 || next === 66) {
|
|
this.readRadixNumber(2);
|
|
return;
|
|
}
|
|
}
|
|
|
|
case 49:
|
|
case 50:
|
|
case 51:
|
|
case 52:
|
|
case 53:
|
|
case 54:
|
|
case 55:
|
|
case 56:
|
|
case 57:
|
|
this.readNumber(false);
|
|
return;
|
|
|
|
case 34:
|
|
case 39:
|
|
this.readString(code);
|
|
return;
|
|
|
|
case 47:
|
|
this.readToken_slash();
|
|
return;
|
|
|
|
case 37:
|
|
case 42:
|
|
this.readToken_mult_modulo(code);
|
|
return;
|
|
|
|
case 124:
|
|
case 38:
|
|
this.readToken_pipe_amp(code);
|
|
return;
|
|
|
|
case 94:
|
|
this.readToken_caret();
|
|
return;
|
|
|
|
case 43:
|
|
case 45:
|
|
this.readToken_plus_min(code);
|
|
return;
|
|
|
|
case 60:
|
|
case 62:
|
|
this.readToken_lt_gt(code);
|
|
return;
|
|
|
|
case 61:
|
|
case 33:
|
|
this.readToken_eq_excl(code);
|
|
return;
|
|
|
|
case 126:
|
|
this.finishOp(types.tilde, 1);
|
|
return;
|
|
|
|
case 64:
|
|
++this.state.pos;
|
|
this.finishToken(types.at);
|
|
return;
|
|
|
|
case 35:
|
|
this.readToken_numberSign();
|
|
return;
|
|
|
|
case 92:
|
|
this.readWord();
|
|
return;
|
|
|
|
default:
|
|
if (isIdentifierStart(code)) {
|
|
this.readWord();
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
throw this.raise(this.state.pos, ErrorMessages.InvalidOrUnexpectedToken, String.fromCodePoint(code));
|
|
}
|
|
|
|
finishOp(type, size) {
|
|
const str = this.input.slice(this.state.pos, this.state.pos + size);
|
|
this.state.pos += size;
|
|
this.finishToken(type, str);
|
|
}
|
|
|
|
readRegexp() {
|
|
const start = this.state.pos;
|
|
let escaped, inClass;
|
|
|
|
for (;;) {
|
|
if (this.state.pos >= this.length) {
|
|
throw this.raise(start, ErrorMessages.UnterminatedRegExp);
|
|
}
|
|
|
|
const ch = this.input.charAt(this.state.pos);
|
|
|
|
if (lineBreak.test(ch)) {
|
|
throw this.raise(start, ErrorMessages.UnterminatedRegExp);
|
|
}
|
|
|
|
if (escaped) {
|
|
escaped = false;
|
|
} else {
|
|
if (ch === "[") {
|
|
inClass = true;
|
|
} else if (ch === "]" && inClass) {
|
|
inClass = false;
|
|
} else if (ch === "/" && !inClass) {
|
|
break;
|
|
}
|
|
|
|
escaped = ch === "\\";
|
|
}
|
|
|
|
++this.state.pos;
|
|
}
|
|
|
|
const content = this.input.slice(start, this.state.pos);
|
|
++this.state.pos;
|
|
let mods = "";
|
|
|
|
while (this.state.pos < this.length) {
|
|
const char = this.input[this.state.pos];
|
|
const charCode = this.input.codePointAt(this.state.pos);
|
|
|
|
if (VALID_REGEX_FLAGS.has(char)) {
|
|
if (mods.indexOf(char) > -1) {
|
|
this.raise(this.state.pos + 1, ErrorMessages.DuplicateRegExpFlags);
|
|
}
|
|
} else if (isIdentifierChar(charCode) || charCode === 92) {
|
|
this.raise(this.state.pos + 1, ErrorMessages.MalformedRegExpFlags);
|
|
} else {
|
|
break;
|
|
}
|
|
|
|
++this.state.pos;
|
|
mods += char;
|
|
}
|
|
|
|
this.finishToken(types.regexp, {
|
|
pattern: content,
|
|
flags: mods
|
|
});
|
|
}
|
|
|
|
readInt(radix, len, forceLen, allowNumSeparator = true) {
|
|
const start = this.state.pos;
|
|
const forbiddenSiblings = radix === 16 ? forbiddenNumericSeparatorSiblings.hex : forbiddenNumericSeparatorSiblings.decBinOct;
|
|
const allowedSiblings = radix === 16 ? allowedNumericSeparatorSiblings.hex : radix === 10 ? allowedNumericSeparatorSiblings.dec : radix === 8 ? allowedNumericSeparatorSiblings.oct : allowedNumericSeparatorSiblings.bin;
|
|
let invalid = false;
|
|
let total = 0;
|
|
|
|
for (let i = 0, e = len == null ? Infinity : len; i < e; ++i) {
|
|
const code = this.input.charCodeAt(this.state.pos);
|
|
let val;
|
|
|
|
if (this.hasPlugin("numericSeparator")) {
|
|
if (code === 95) {
|
|
const prev = this.input.charCodeAt(this.state.pos - 1);
|
|
const next = this.input.charCodeAt(this.state.pos + 1);
|
|
|
|
if (allowedSiblings.indexOf(next) === -1) {
|
|
this.raise(this.state.pos, ErrorMessages.UnexpectedNumericSeparator);
|
|
} else if (forbiddenSiblings.indexOf(prev) > -1 || forbiddenSiblings.indexOf(next) > -1 || Number.isNaN(next)) {
|
|
this.raise(this.state.pos, ErrorMessages.UnexpectedNumericSeparator);
|
|
}
|
|
|
|
if (!allowNumSeparator) {
|
|
this.raise(this.state.pos, ErrorMessages.NumericSeparatorInEscapeSequence);
|
|
}
|
|
|
|
++this.state.pos;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (code >= 97) {
|
|
val = code - 97 + 10;
|
|
} else if (code >= 65) {
|
|
val = code - 65 + 10;
|
|
} else if (_isDigit(code)) {
|
|
val = code - 48;
|
|
} else {
|
|
val = Infinity;
|
|
}
|
|
|
|
if (val >= radix) {
|
|
if (this.options.errorRecovery && val <= 9) {
|
|
val = 0;
|
|
this.raise(this.state.start + i + 2, ErrorMessages.InvalidDigit, radix);
|
|
} else if (forceLen) {
|
|
val = 0;
|
|
invalid = true;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
++this.state.pos;
|
|
total = total * radix + val;
|
|
}
|
|
|
|
if (this.state.pos === start || len != null && this.state.pos - start !== len || invalid) {
|
|
return null;
|
|
}
|
|
|
|
return total;
|
|
}
|
|
|
|
readRadixNumber(radix) {
|
|
const start = this.state.pos;
|
|
let isBigInt = false;
|
|
this.state.pos += 2;
|
|
const val = this.readInt(radix);
|
|
|
|
if (val == null) {
|
|
this.raise(this.state.start + 2, ErrorMessages.InvalidDigit, radix);
|
|
}
|
|
|
|
const next = this.input.charCodeAt(this.state.pos);
|
|
|
|
if (next === 95) {
|
|
this.expectPlugin("numericSeparator", this.state.pos);
|
|
}
|
|
|
|
if (next === 110) {
|
|
++this.state.pos;
|
|
isBigInt = true;
|
|
}
|
|
|
|
if (isIdentifierStart(this.input.codePointAt(this.state.pos))) {
|
|
throw this.raise(this.state.pos, ErrorMessages.NumberIdentifier);
|
|
}
|
|
|
|
if (isBigInt) {
|
|
const str = this.input.slice(start, this.state.pos).replace(/[_n]/g, "");
|
|
this.finishToken(types.bigint, str);
|
|
return;
|
|
}
|
|
|
|
this.finishToken(types.num, val);
|
|
}
|
|
|
|
readNumber(startsWithDot) {
|
|
const start = this.state.pos;
|
|
let isFloat = false;
|
|
let isBigInt = false;
|
|
let isNonOctalDecimalInt = false;
|
|
|
|
if (!startsWithDot && this.readInt(10) === null) {
|
|
this.raise(start, ErrorMessages.InvalidNumber);
|
|
}
|
|
|
|
let octal = this.state.pos - start >= 2 && this.input.charCodeAt(start) === 48;
|
|
|
|
if (octal) {
|
|
if (this.state.strict) {
|
|
this.raise(start, ErrorMessages.StrictOctalLiteral);
|
|
}
|
|
|
|
if (/[89]/.test(this.input.slice(start, this.state.pos))) {
|
|
octal = false;
|
|
isNonOctalDecimalInt = true;
|
|
}
|
|
}
|
|
|
|
let next = this.input.charCodeAt(this.state.pos);
|
|
|
|
if (next === 46 && !octal) {
|
|
++this.state.pos;
|
|
this.readInt(10);
|
|
isFloat = true;
|
|
next = this.input.charCodeAt(this.state.pos);
|
|
}
|
|
|
|
if ((next === 69 || next === 101) && !octal) {
|
|
next = this.input.charCodeAt(++this.state.pos);
|
|
|
|
if (next === 43 || next === 45) {
|
|
++this.state.pos;
|
|
}
|
|
|
|
if (this.readInt(10) === null) this.raise(start, "Invalid number");
|
|
isFloat = true;
|
|
next = this.input.charCodeAt(this.state.pos);
|
|
}
|
|
|
|
if (this.hasPlugin("numericSeparator") && (octal || isNonOctalDecimalInt)) {
|
|
const underscorePos = this.input.slice(start, this.state.pos).indexOf("_");
|
|
|
|
if (underscorePos > 0) {
|
|
this.raise(underscorePos + start, ErrorMessages.ZeroDigitNumericSeparator);
|
|
}
|
|
}
|
|
|
|
if (next === 95) {
|
|
this.expectPlugin("numericSeparator", this.state.pos);
|
|
}
|
|
|
|
if (next === 110) {
|
|
if (isFloat || octal || isNonOctalDecimalInt) {
|
|
this.raise(start, "Invalid BigIntLiteral");
|
|
}
|
|
|
|
++this.state.pos;
|
|
isBigInt = true;
|
|
}
|
|
|
|
if (isIdentifierStart(this.input.codePointAt(this.state.pos))) {
|
|
throw this.raise(this.state.pos, ErrorMessages.NumberIdentifier);
|
|
}
|
|
|
|
const str = this.input.slice(start, this.state.pos).replace(/[_n]/g, "");
|
|
|
|
if (isBigInt) {
|
|
this.finishToken(types.bigint, str);
|
|
return;
|
|
}
|
|
|
|
const val = octal ? parseInt(str, 8) : parseFloat(str);
|
|
this.finishToken(types.num, val);
|
|
}
|
|
|
|
readCodePoint(throwOnInvalid) {
|
|
const ch = this.input.charCodeAt(this.state.pos);
|
|
let code;
|
|
|
|
if (ch === 123) {
|
|
const codePos = ++this.state.pos;
|
|
code = this.readHexChar(this.input.indexOf("}", this.state.pos) - this.state.pos, true, throwOnInvalid);
|
|
++this.state.pos;
|
|
|
|
if (code !== null && code > 0x10ffff) {
|
|
if (throwOnInvalid) {
|
|
this.raise(codePos, ErrorMessages.InvalidCodePoint);
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
} else {
|
|
code = this.readHexChar(4, false, throwOnInvalid);
|
|
}
|
|
|
|
return code;
|
|
}
|
|
|
|
readString(quote) {
|
|
let out = "",
|
|
chunkStart = ++this.state.pos;
|
|
|
|
for (;;) {
|
|
if (this.state.pos >= this.length) {
|
|
throw this.raise(this.state.start, ErrorMessages.UnterminatedString);
|
|
}
|
|
|
|
const ch = this.input.charCodeAt(this.state.pos);
|
|
if (ch === quote) break;
|
|
|
|
if (ch === 92) {
|
|
out += this.input.slice(chunkStart, this.state.pos);
|
|
out += this.readEscapedChar(false);
|
|
chunkStart = this.state.pos;
|
|
} else if (ch === 8232 || ch === 8233) {
|
|
++this.state.pos;
|
|
++this.state.curLine;
|
|
this.state.lineStart = this.state.pos;
|
|
} else if (isNewLine(ch)) {
|
|
throw this.raise(this.state.start, ErrorMessages.UnterminatedString);
|
|
} else {
|
|
++this.state.pos;
|
|
}
|
|
}
|
|
|
|
out += this.input.slice(chunkStart, this.state.pos++);
|
|
this.finishToken(types.string, out);
|
|
}
|
|
|
|
readTmplToken() {
|
|
let out = "",
|
|
chunkStart = this.state.pos,
|
|
containsInvalid = false;
|
|
|
|
for (;;) {
|
|
if (this.state.pos >= this.length) {
|
|
throw this.raise(this.state.start, ErrorMessages.UnterminatedTemplate);
|
|
}
|
|
|
|
const ch = this.input.charCodeAt(this.state.pos);
|
|
|
|
if (ch === 96 || ch === 36 && this.input.charCodeAt(this.state.pos + 1) === 123) {
|
|
if (this.state.pos === this.state.start && this.match(types.template)) {
|
|
if (ch === 36) {
|
|
this.state.pos += 2;
|
|
this.finishToken(types.dollarBraceL);
|
|
return;
|
|
} else {
|
|
++this.state.pos;
|
|
this.finishToken(types.backQuote);
|
|
return;
|
|
}
|
|
}
|
|
|
|
out += this.input.slice(chunkStart, this.state.pos);
|
|
this.finishToken(types.template, containsInvalid ? null : out);
|
|
return;
|
|
}
|
|
|
|
if (ch === 92) {
|
|
out += this.input.slice(chunkStart, this.state.pos);
|
|
const escaped = this.readEscapedChar(true);
|
|
|
|
if (escaped === null) {
|
|
containsInvalid = true;
|
|
} else {
|
|
out += escaped;
|
|
}
|
|
|
|
chunkStart = this.state.pos;
|
|
} else if (isNewLine(ch)) {
|
|
out += this.input.slice(chunkStart, this.state.pos);
|
|
++this.state.pos;
|
|
|
|
switch (ch) {
|
|
case 13:
|
|
if (this.input.charCodeAt(this.state.pos) === 10) {
|
|
++this.state.pos;
|
|
}
|
|
|
|
case 10:
|
|
out += "\n";
|
|
break;
|
|
|
|
default:
|
|
out += String.fromCharCode(ch);
|
|
break;
|
|
}
|
|
|
|
++this.state.curLine;
|
|
this.state.lineStart = this.state.pos;
|
|
chunkStart = this.state.pos;
|
|
} else {
|
|
++this.state.pos;
|
|
}
|
|
}
|
|
}
|
|
|
|
readEscapedChar(inTemplate) {
|
|
const throwOnInvalid = !inTemplate;
|
|
const ch = this.input.charCodeAt(++this.state.pos);
|
|
++this.state.pos;
|
|
|
|
switch (ch) {
|
|
case 110:
|
|
return "\n";
|
|
|
|
case 114:
|
|
return "\r";
|
|
|
|
case 120:
|
|
{
|
|
const code = this.readHexChar(2, false, throwOnInvalid);
|
|
return code === null ? null : String.fromCharCode(code);
|
|
}
|
|
|
|
case 117:
|
|
{
|
|
const code = this.readCodePoint(throwOnInvalid);
|
|
return code === null ? null : String.fromCodePoint(code);
|
|
}
|
|
|
|
case 116:
|
|
return "\t";
|
|
|
|
case 98:
|
|
return "\b";
|
|
|
|
case 118:
|
|
return "\u000b";
|
|
|
|
case 102:
|
|
return "\f";
|
|
|
|
case 13:
|
|
if (this.input.charCodeAt(this.state.pos) === 10) {
|
|
++this.state.pos;
|
|
}
|
|
|
|
case 10:
|
|
this.state.lineStart = this.state.pos;
|
|
++this.state.curLine;
|
|
|
|
case 8232:
|
|
case 8233:
|
|
return "";
|
|
|
|
case 56:
|
|
case 57:
|
|
if (inTemplate) {
|
|
return null;
|
|
}
|
|
|
|
default:
|
|
if (ch >= 48 && ch <= 55) {
|
|
const codePos = this.state.pos - 1;
|
|
const match = this.input.substr(this.state.pos - 1, 3).match(/^[0-7]+/);
|
|
let octalStr = match[0];
|
|
let octal = parseInt(octalStr, 8);
|
|
|
|
if (octal > 255) {
|
|
octalStr = octalStr.slice(0, -1);
|
|
octal = parseInt(octalStr, 8);
|
|
}
|
|
|
|
this.state.pos += octalStr.length - 1;
|
|
const next = this.input.charCodeAt(this.state.pos);
|
|
|
|
if (octalStr !== "0" || next === 56 || next === 57) {
|
|
if (inTemplate) {
|
|
return null;
|
|
} else if (this.state.strict) {
|
|
this.raise(codePos, ErrorMessages.StrictOctalLiteral);
|
|
} else {
|
|
this.state.octalPositions.push(codePos);
|
|
}
|
|
}
|
|
|
|
return String.fromCharCode(octal);
|
|
}
|
|
|
|
return String.fromCharCode(ch);
|
|
}
|
|
}
|
|
|
|
readHexChar(len, forceLen, throwOnInvalid) {
|
|
const codePos = this.state.pos;
|
|
const n = this.readInt(16, len, forceLen, false);
|
|
|
|
if (n === null) {
|
|
if (throwOnInvalid) {
|
|
this.raise(codePos, ErrorMessages.InvalidEscapeSequence);
|
|
} else {
|
|
this.state.pos = codePos - 1;
|
|
}
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
readWord1() {
|
|
let word = "";
|
|
this.state.containsEsc = false;
|
|
const start = this.state.pos;
|
|
let chunkStart = this.state.pos;
|
|
|
|
while (this.state.pos < this.length) {
|
|
const ch = this.input.codePointAt(this.state.pos);
|
|
|
|
if (isIdentifierChar(ch)) {
|
|
this.state.pos += ch <= 0xffff ? 1 : 2;
|
|
} else if (this.state.isIterator && ch === 64) {
|
|
++this.state.pos;
|
|
} else if (ch === 92) {
|
|
this.state.containsEsc = true;
|
|
word += this.input.slice(chunkStart, this.state.pos);
|
|
const escStart = this.state.pos;
|
|
const identifierCheck = this.state.pos === start ? isIdentifierStart : isIdentifierChar;
|
|
|
|
if (this.input.charCodeAt(++this.state.pos) !== 117) {
|
|
this.raise(this.state.pos, ErrorMessages.MissingUnicodeEscape);
|
|
continue;
|
|
}
|
|
|
|
++this.state.pos;
|
|
const esc = this.readCodePoint(true);
|
|
|
|
if (esc !== null) {
|
|
if (!identifierCheck(esc)) {
|
|
this.raise(escStart, ErrorMessages.EscapedCharNotAnIdentifier);
|
|
}
|
|
|
|
word += String.fromCodePoint(esc);
|
|
}
|
|
|
|
chunkStart = this.state.pos;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return word + this.input.slice(chunkStart, this.state.pos);
|
|
}
|
|
|
|
isIterator(word) {
|
|
return word === "@@iterator" || word === "@@asyncIterator";
|
|
}
|
|
|
|
readWord() {
|
|
const word = this.readWord1();
|
|
const type = keywords.get(word) || types.name;
|
|
|
|
if (this.state.isIterator && (!this.isIterator(word) || !this.state.inType)) {
|
|
this.raise(this.state.pos, ErrorMessages.InvalidIdentifier, word);
|
|
}
|
|
|
|
this.finishToken(type, word);
|
|
}
|
|
|
|
checkKeywordEscapes() {
|
|
const kw = this.state.type.keyword;
|
|
|
|
if (kw && this.state.containsEsc) {
|
|
this.raise(this.state.start, ErrorMessages.InvalidEscapedReservedWord, kw);
|
|
}
|
|
}
|
|
|
|
braceIsBlock(prevType) {
|
|
const parent = this.curContext();
|
|
|
|
if (parent === types$1.functionExpression || parent === types$1.functionStatement) {
|
|
return true;
|
|
}
|
|
|
|
if (prevType === types.colon && (parent === types$1.braceStatement || parent === types$1.braceExpression)) {
|
|
return !parent.isExpr;
|
|
}
|
|
|
|
if (prevType === types._return || prevType === types.name && this.state.exprAllowed) {
|
|
return lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start));
|
|
}
|
|
|
|
if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR || prevType === types.arrow) {
|
|
return true;
|
|
}
|
|
|
|
if (prevType === types.braceL) {
|
|
return parent === types$1.braceStatement;
|
|
}
|
|
|
|
if (prevType === types._var || prevType === types._const || prevType === types.name) {
|
|
return false;
|
|
}
|
|
|
|
if (prevType === types.relational) {
|
|
return true;
|
|
}
|
|
|
|
return !this.state.exprAllowed;
|
|
}
|
|
|
|
updateContext(prevType) {
|
|
const type = this.state.type;
|
|
let update;
|
|
|
|
if (type.keyword && (prevType === types.dot || prevType === types.questionDot)) {
|
|
this.state.exprAllowed = false;
|
|
} else if (update = type.updateContext) {
|
|
update.call(this, prevType);
|
|
} else {
|
|
this.state.exprAllowed = type.beforeExpr;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
class UtilParser extends Tokenizer {
|
|
addExtra(node, key, val) {
|
|
if (!node) return;
|
|
const extra = node.extra = node.extra || {};
|
|
extra[key] = val;
|
|
}
|
|
|
|
isRelational(op) {
|
|
return this.match(types.relational) && this.state.value === op;
|
|
}
|
|
|
|
isLookaheadRelational(op) {
|
|
const next = this.nextTokenStart();
|
|
|
|
if (this.input.charAt(next) === op) {
|
|
if (next + 1 === this.input.length) {
|
|
return true;
|
|
}
|
|
|
|
const afterNext = this.input.charCodeAt(next + 1);
|
|
return afterNext !== op.charCodeAt(0) && afterNext !== 61;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
expectRelational(op) {
|
|
if (this.isRelational(op)) {
|
|
this.next();
|
|
} else {
|
|
this.unexpected(null, types.relational);
|
|
}
|
|
}
|
|
|
|
isContextual(name) {
|
|
return this.match(types.name) && this.state.value === name && !this.state.containsEsc;
|
|
}
|
|
|
|
isUnparsedContextual(nameStart, name) {
|
|
const nameEnd = nameStart + name.length;
|
|
return this.input.slice(nameStart, nameEnd) === name && (nameEnd === this.input.length || !isIdentifierChar(this.input.charCodeAt(nameEnd)));
|
|
}
|
|
|
|
isLookaheadContextual(name) {
|
|
const next = this.nextTokenStart();
|
|
return this.isUnparsedContextual(next, name);
|
|
}
|
|
|
|
eatContextual(name) {
|
|
return this.isContextual(name) && this.eat(types.name);
|
|
}
|
|
|
|
expectContextual(name, message) {
|
|
if (!this.eatContextual(name)) this.unexpected(null, message);
|
|
}
|
|
|
|
canInsertSemicolon() {
|
|
return this.match(types.eof) || this.match(types.braceR) || this.hasPrecedingLineBreak();
|
|
}
|
|
|
|
hasPrecedingLineBreak() {
|
|
return lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start));
|
|
}
|
|
|
|
isLineTerminator() {
|
|
return this.eat(types.semi) || this.canInsertSemicolon();
|
|
}
|
|
|
|
semicolon() {
|
|
if (!this.isLineTerminator()) this.unexpected(null, types.semi);
|
|
}
|
|
|
|
expect(type, pos) {
|
|
this.eat(type) || this.unexpected(pos, type);
|
|
}
|
|
|
|
assertNoSpace(message = "Unexpected space.") {
|
|
if (this.state.start > this.state.lastTokEnd) {
|
|
this.raise(this.state.lastTokEnd, message);
|
|
}
|
|
}
|
|
|
|
unexpected(pos, messageOrType = "Unexpected token") {
|
|
if (typeof messageOrType !== "string") {
|
|
messageOrType = `Unexpected token, expected "${messageOrType.label}"`;
|
|
}
|
|
|
|
throw this.raise(pos != null ? pos : this.state.start, messageOrType);
|
|
}
|
|
|
|
expectPlugin(name, pos) {
|
|
if (!this.hasPlugin(name)) {
|
|
throw this.raiseWithData(pos != null ? pos : this.state.start, {
|
|
missingPlugin: [name]
|
|
}, `This experimental syntax requires enabling the parser plugin: '${name}'`);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
expectOnePlugin(names, pos) {
|
|
if (!names.some(n => this.hasPlugin(n))) {
|
|
throw this.raiseWithData(pos != null ? pos : this.state.start, {
|
|
missingPlugin: names
|
|
}, `This experimental syntax requires enabling one of the following parser plugin(s): '${names.join(", ")}'`);
|
|
}
|
|
}
|
|
|
|
checkYieldAwaitInDefaultParams() {
|
|
if (this.state.yieldPos !== -1 && (this.state.awaitPos === -1 || this.state.yieldPos < this.state.awaitPos)) {
|
|
this.raise(this.state.yieldPos, "Yield cannot be used as name inside a generator function");
|
|
}
|
|
|
|
if (this.state.awaitPos !== -1) {
|
|
this.raise(this.state.awaitPos, "Await cannot be used as name inside an async function");
|
|
}
|
|
}
|
|
|
|
tryParse(fn, oldState = this.state.clone()) {
|
|
const abortSignal = {
|
|
node: null
|
|
};
|
|
|
|
try {
|
|
const node = fn((node = null) => {
|
|
abortSignal.node = node;
|
|
throw abortSignal;
|
|
});
|
|
|
|
if (this.state.errors.length > oldState.errors.length) {
|
|
const failState = this.state;
|
|
this.state = oldState;
|
|
return {
|
|
node,
|
|
error: failState.errors[oldState.errors.length],
|
|
thrown: false,
|
|
aborted: false,
|
|
failState
|
|
};
|
|
}
|
|
|
|
return {
|
|
node,
|
|
error: null,
|
|
thrown: false,
|
|
aborted: false,
|
|
failState: null
|
|
};
|
|
} catch (error) {
|
|
const failState = this.state;
|
|
this.state = oldState;
|
|
|
|
if (error instanceof SyntaxError) {
|
|
return {
|
|
node: null,
|
|
error,
|
|
thrown: true,
|
|
aborted: false,
|
|
failState
|
|
};
|
|
}
|
|
|
|
if (error === abortSignal) {
|
|
return {
|
|
node: abortSignal.node,
|
|
error: null,
|
|
thrown: false,
|
|
aborted: true,
|
|
failState
|
|
};
|
|
}
|
|
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
checkExpressionErrors(refExpressionErrors, andThrow) {
|
|
if (!refExpressionErrors) return false;
|
|
const {
|
|
shorthandAssign,
|
|
doubleProto
|
|
} = refExpressionErrors;
|
|
if (!andThrow) return shorthandAssign >= 0 || doubleProto >= 0;
|
|
|
|
if (shorthandAssign >= 0) {
|
|
this.unexpected(shorthandAssign);
|
|
}
|
|
|
|
if (doubleProto >= 0) {
|
|
this.raise(doubleProto, ErrorMessages.DuplicateProto);
|
|
}
|
|
}
|
|
|
|
isLiteralPropertyName() {
|
|
return this.match(types.name) || !!this.state.type.keyword || this.match(types.string) || this.match(types.num) || this.match(types.bigint);
|
|
}
|
|
|
|
}
|
|
class ExpressionErrors {
|
|
constructor() {
|
|
this.shorthandAssign = -1;
|
|
this.doubleProto = -1;
|
|
}
|
|
|
|
}
|
|
|
|
class Node {
|
|
constructor(parser, pos, loc) {
|
|
this.type = "";
|
|
this.start = pos;
|
|
this.end = 0;
|
|
this.loc = new SourceLocation(loc);
|
|
if (parser == null ? void 0 : parser.options.ranges) this.range = [pos, 0];
|
|
if (parser == null ? void 0 : parser.filename) this.loc.filename = parser.filename;
|
|
}
|
|
|
|
__clone() {
|
|
const newNode = new Node();
|
|
const keys = Object.keys(this);
|
|
|
|
for (let i = 0, length = keys.length; i < length; i++) {
|
|
const key = keys[i];
|
|
|
|
if (key !== "leadingComments" && key !== "trailingComments" && key !== "innerComments") {
|
|
newNode[key] = this[key];
|
|
}
|
|
}
|
|
|
|
return newNode;
|
|
}
|
|
|
|
}
|
|
|
|
class NodeUtils extends UtilParser {
|
|
startNode() {
|
|
return new Node(this, this.state.start, this.state.startLoc);
|
|
}
|
|
|
|
startNodeAt(pos, loc) {
|
|
return new Node(this, pos, loc);
|
|
}
|
|
|
|
startNodeAtNode(type) {
|
|
return this.startNodeAt(type.start, type.loc.start);
|
|
}
|
|
|
|
finishNode(node, type) {
|
|
return this.finishNodeAt(node, type, this.state.lastTokEnd, this.state.lastTokEndLoc);
|
|
}
|
|
|
|
finishNodeAt(node, type, pos, loc) {
|
|
|
|
node.type = type;
|
|
node.end = pos;
|
|
node.loc.end = loc;
|
|
if (this.options.ranges) node.range[1] = pos;
|
|
this.processComment(node);
|
|
return node;
|
|
}
|
|
|
|
resetStartLocation(node, start, startLoc) {
|
|
node.start = start;
|
|
node.loc.start = startLoc;
|
|
if (this.options.ranges) node.range[0] = start;
|
|
}
|
|
|
|
resetEndLocation(node, end = this.state.lastTokEnd, endLoc = this.state.lastTokEndLoc) {
|
|
node.end = end;
|
|
node.loc.end = endLoc;
|
|
if (this.options.ranges) node.range[1] = end;
|
|
}
|
|
|
|
resetStartLocationFromNode(node, locationNode) {
|
|
this.resetStartLocation(node, locationNode.start, locationNode.loc.start);
|
|
}
|
|
|
|
}
|
|
|
|
const unwrapParenthesizedExpression = node => {
|
|
return node.type === "ParenthesizedExpression" ? unwrapParenthesizedExpression(node.expression) : node;
|
|
};
|
|
|
|
class LValParser extends NodeUtils {
|
|
toAssignable(node) {
|
|
var _node$extra, _node$extra3;
|
|
|
|
let parenthesized = undefined;
|
|
|
|
if (node.type === "ParenthesizedExpression" || ((_node$extra = node.extra) == null ? void 0 : _node$extra.parenthesized)) {
|
|
parenthesized = unwrapParenthesizedExpression(node);
|
|
|
|
if (parenthesized.type !== "Identifier" && parenthesized.type !== "MemberExpression") {
|
|
this.raise(node.start, ErrorMessages.InvalidParenthesizedAssignment);
|
|
}
|
|
}
|
|
|
|
switch (node.type) {
|
|
case "Identifier":
|
|
case "ObjectPattern":
|
|
case "ArrayPattern":
|
|
case "AssignmentPattern":
|
|
break;
|
|
|
|
case "ObjectExpression":
|
|
node.type = "ObjectPattern";
|
|
|
|
for (let i = 0, length = node.properties.length, last = length - 1; i < length; i++) {
|
|
var _node$extra2;
|
|
|
|
const prop = node.properties[i];
|
|
const isLast = i === last;
|
|
this.toAssignableObjectExpressionProp(prop, isLast);
|
|
|
|
if (isLast && prop.type === "RestElement" && ((_node$extra2 = node.extra) == null ? void 0 : _node$extra2.trailingComma)) {
|
|
this.raiseRestNotLast(node.extra.trailingComma);
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
case "ObjectProperty":
|
|
this.toAssignable(node.value);
|
|
break;
|
|
|
|
case "SpreadElement":
|
|
{
|
|
this.checkToRestConversion(node);
|
|
node.type = "RestElement";
|
|
const arg = node.argument;
|
|
this.toAssignable(arg);
|
|
break;
|
|
}
|
|
|
|
case "ArrayExpression":
|
|
node.type = "ArrayPattern";
|
|
this.toAssignableList(node.elements, (_node$extra3 = node.extra) == null ? void 0 : _node$extra3.trailingComma);
|
|
break;
|
|
|
|
case "AssignmentExpression":
|
|
if (node.operator !== "=") {
|
|
this.raise(node.left.end, ErrorMessages.MissingEqInAssignment);
|
|
}
|
|
|
|
node.type = "AssignmentPattern";
|
|
delete node.operator;
|
|
this.toAssignable(node.left);
|
|
break;
|
|
|
|
case "ParenthesizedExpression":
|
|
this.toAssignable(parenthesized);
|
|
break;
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
toAssignableObjectExpressionProp(prop, isLast) {
|
|
if (prop.type === "ObjectMethod") {
|
|
const error = prop.kind === "get" || prop.kind === "set" ? ErrorMessages.PatternHasAccessor : ErrorMessages.PatternHasMethod;
|
|
this.raise(prop.key.start, error);
|
|
} else if (prop.type === "SpreadElement" && !isLast) {
|
|
this.raiseRestNotLast(prop.start);
|
|
} else {
|
|
this.toAssignable(prop);
|
|
}
|
|
}
|
|
|
|
toAssignableList(exprList, trailingCommaPos) {
|
|
let end = exprList.length;
|
|
|
|
if (end) {
|
|
const last = exprList[end - 1];
|
|
|
|
if ((last == null ? void 0 : last.type) === "RestElement") {
|
|
--end;
|
|
} else if ((last == null ? void 0 : last.type) === "SpreadElement") {
|
|
last.type = "RestElement";
|
|
const arg = last.argument;
|
|
this.toAssignable(arg);
|
|
|
|
if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern" && arg.type !== "ObjectPattern") {
|
|
this.unexpected(arg.start);
|
|
}
|
|
|
|
if (trailingCommaPos) {
|
|
this.raiseTrailingCommaAfterRest(trailingCommaPos);
|
|
}
|
|
|
|
--end;
|
|
}
|
|
}
|
|
|
|
for (let i = 0; i < end; i++) {
|
|
const elt = exprList[i];
|
|
|
|
if (elt) {
|
|
this.toAssignable(elt);
|
|
|
|
if (elt.type === "RestElement") {
|
|
this.raiseRestNotLast(elt.start);
|
|
}
|
|
}
|
|
}
|
|
|
|
return exprList;
|
|
}
|
|
|
|
toReferencedList(exprList, isParenthesizedExpr) {
|
|
return exprList;
|
|
}
|
|
|
|
toReferencedListDeep(exprList, isParenthesizedExpr) {
|
|
this.toReferencedList(exprList, isParenthesizedExpr);
|
|
|
|
for (let _i = 0; _i < exprList.length; _i++) {
|
|
const expr = exprList[_i];
|
|
|
|
if ((expr == null ? void 0 : expr.type) === "ArrayExpression") {
|
|
this.toReferencedListDeep(expr.elements);
|
|
}
|
|
}
|
|
}
|
|
|
|
parseSpread(refExpressionErrors, refNeedsArrowPos) {
|
|
const node = this.startNode();
|
|
this.next();
|
|
node.argument = this.parseMaybeAssign(false, refExpressionErrors, undefined, refNeedsArrowPos);
|
|
return this.finishNode(node, "SpreadElement");
|
|
}
|
|
|
|
parseRestBinding() {
|
|
const node = this.startNode();
|
|
this.next();
|
|
node.argument = this.parseBindingAtom();
|
|
return this.finishNode(node, "RestElement");
|
|
}
|
|
|
|
parseBindingAtom() {
|
|
switch (this.state.type) {
|
|
case types.bracketL:
|
|
{
|
|
const node = this.startNode();
|
|
this.next();
|
|
node.elements = this.parseBindingList(types.bracketR, 93, true);
|
|
return this.finishNode(node, "ArrayPattern");
|
|
}
|
|
|
|
case types.braceL:
|
|
return this.parseObj(types.braceR, true);
|
|
}
|
|
|
|
return this.parseIdentifier();
|
|
}
|
|
|
|
parseBindingList(close, closeCharCode, allowEmpty, allowModifiers) {
|
|
const elts = [];
|
|
let first = true;
|
|
|
|
while (!this.eat(close)) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
this.expect(types.comma);
|
|
}
|
|
|
|
if (allowEmpty && this.match(types.comma)) {
|
|
elts.push(null);
|
|
} else if (this.eat(close)) {
|
|
break;
|
|
} else if (this.match(types.ellipsis)) {
|
|
elts.push(this.parseAssignableListItemTypes(this.parseRestBinding()));
|
|
this.checkCommaAfterRest(closeCharCode);
|
|
this.expect(close);
|
|
break;
|
|
} else {
|
|
const decorators = [];
|
|
|
|
if (this.match(types.at) && this.hasPlugin("decorators")) {
|
|
this.raise(this.state.start, ErrorMessages.UnsupportedParameterDecorator);
|
|
}
|
|
|
|
while (this.match(types.at)) {
|
|
decorators.push(this.parseDecorator());
|
|
}
|
|
|
|
elts.push(this.parseAssignableListItem(allowModifiers, decorators));
|
|
}
|
|
}
|
|
|
|
return elts;
|
|
}
|
|
|
|
parseAssignableListItem(allowModifiers, decorators) {
|
|
const left = this.parseMaybeDefault();
|
|
this.parseAssignableListItemTypes(left);
|
|
const elt = this.parseMaybeDefault(left.start, left.loc.start, left);
|
|
|
|
if (decorators.length) {
|
|
left.decorators = decorators;
|
|
}
|
|
|
|
return elt;
|
|
}
|
|
|
|
parseAssignableListItemTypes(param) {
|
|
return param;
|
|
}
|
|
|
|
parseMaybeDefault(startPos, startLoc, left) {
|
|
startLoc = startLoc || this.state.startLoc;
|
|
startPos = startPos || this.state.start;
|
|
left = left || this.parseBindingAtom();
|
|
if (!this.eat(types.eq)) return left;
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.left = left;
|
|
node.right = this.parseMaybeAssign();
|
|
return this.finishNode(node, "AssignmentPattern");
|
|
}
|
|
|
|
checkLVal(expr, bindingType = BIND_NONE, checkClashes, contextDescription, disallowLetBinding, strictModeChanged = false) {
|
|
switch (expr.type) {
|
|
case "Identifier":
|
|
if (this.state.strict && (strictModeChanged ? isStrictBindReservedWord(expr.name, this.inModule) : isStrictBindOnlyReservedWord(expr.name))) {
|
|
this.raise(expr.start, bindingType === BIND_NONE ? ErrorMessages.StrictEvalArguments : ErrorMessages.StrictEvalArgumentsBinding, expr.name);
|
|
}
|
|
|
|
if (checkClashes) {
|
|
const key = `_${expr.name}`;
|
|
|
|
if (checkClashes[key]) {
|
|
this.raise(expr.start, ErrorMessages.ParamDupe);
|
|
} else {
|
|
checkClashes[key] = true;
|
|
}
|
|
}
|
|
|
|
if (disallowLetBinding && expr.name === "let") {
|
|
this.raise(expr.start, ErrorMessages.LetInLexicalBinding);
|
|
}
|
|
|
|
if (!(bindingType & BIND_NONE)) {
|
|
this.scope.declareName(expr.name, bindingType, expr.start);
|
|
}
|
|
|
|
break;
|
|
|
|
case "MemberExpression":
|
|
if (bindingType !== BIND_NONE) {
|
|
this.raise(expr.start, ErrorMessages.InvalidPropertyBindingPattern);
|
|
}
|
|
|
|
break;
|
|
|
|
case "ObjectPattern":
|
|
for (let _i2 = 0, _expr$properties = expr.properties; _i2 < _expr$properties.length; _i2++) {
|
|
let prop = _expr$properties[_i2];
|
|
if (prop.type === "ObjectProperty") prop = prop.value;else if (prop.type === "ObjectMethod") continue;
|
|
this.checkLVal(prop, bindingType, checkClashes, "object destructuring pattern", disallowLetBinding);
|
|
}
|
|
|
|
break;
|
|
|
|
case "ArrayPattern":
|
|
for (let _i3 = 0, _expr$elements = expr.elements; _i3 < _expr$elements.length; _i3++) {
|
|
const elem = _expr$elements[_i3];
|
|
|
|
if (elem) {
|
|
this.checkLVal(elem, bindingType, checkClashes, "array destructuring pattern", disallowLetBinding);
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
case "AssignmentPattern":
|
|
this.checkLVal(expr.left, bindingType, checkClashes, "assignment pattern");
|
|
break;
|
|
|
|
case "RestElement":
|
|
this.checkLVal(expr.argument, bindingType, checkClashes, "rest element");
|
|
break;
|
|
|
|
case "ParenthesizedExpression":
|
|
this.checkLVal(expr.expression, bindingType, checkClashes, "parenthesized expression");
|
|
break;
|
|
|
|
default:
|
|
{
|
|
this.raise(expr.start, bindingType === BIND_NONE ? ErrorMessages.InvalidLhs : ErrorMessages.InvalidLhsBinding, contextDescription);
|
|
}
|
|
}
|
|
}
|
|
|
|
checkToRestConversion(node) {
|
|
if (node.argument.type !== "Identifier" && node.argument.type !== "MemberExpression") {
|
|
this.raise(node.argument.start, ErrorMessages.InvalidRestAssignmentPattern);
|
|
}
|
|
}
|
|
|
|
checkCommaAfterRest(close) {
|
|
if (this.match(types.comma)) {
|
|
if (this.lookaheadCharCode() === close) {
|
|
this.raiseTrailingCommaAfterRest(this.state.start);
|
|
} else {
|
|
this.raiseRestNotLast(this.state.start);
|
|
}
|
|
}
|
|
}
|
|
|
|
raiseRestNotLast(pos) {
|
|
throw this.raise(pos, ErrorMessages.ElementAfterRest);
|
|
}
|
|
|
|
raiseTrailingCommaAfterRest(pos) {
|
|
this.raise(pos, ErrorMessages.RestTrailingComma);
|
|
}
|
|
|
|
}
|
|
|
|
class ExpressionParser extends LValParser {
|
|
checkDuplicatedProto(prop, protoRef, refExpressionErrors) {
|
|
if (prop.type === "SpreadElement" || prop.computed || prop.kind || prop.shorthand) {
|
|
return;
|
|
}
|
|
|
|
const key = prop.key;
|
|
const name = key.type === "Identifier" ? key.name : String(key.value);
|
|
|
|
if (name === "__proto__") {
|
|
if (protoRef.used) {
|
|
if (refExpressionErrors) {
|
|
if (refExpressionErrors.doubleProto === -1) {
|
|
refExpressionErrors.doubleProto = key.start;
|
|
}
|
|
} else {
|
|
this.raise(key.start, ErrorMessages.DuplicateProto);
|
|
}
|
|
}
|
|
|
|
protoRef.used = true;
|
|
}
|
|
}
|
|
|
|
getExpression() {
|
|
let paramFlags = PARAM;
|
|
|
|
if (this.hasPlugin("topLevelAwait") && this.inModule) {
|
|
paramFlags |= PARAM_AWAIT;
|
|
}
|
|
|
|
this.scope.enter(SCOPE_PROGRAM);
|
|
this.prodParam.enter(paramFlags);
|
|
this.nextToken();
|
|
const expr = this.parseExpression();
|
|
|
|
if (!this.match(types.eof)) {
|
|
this.unexpected();
|
|
}
|
|
|
|
expr.comments = this.state.comments;
|
|
expr.errors = this.state.errors;
|
|
return expr;
|
|
}
|
|
|
|
parseExpression(noIn, refExpressionErrors) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
const expr = this.parseMaybeAssign(noIn, refExpressionErrors);
|
|
|
|
if (this.match(types.comma)) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.expressions = [expr];
|
|
|
|
while (this.eat(types.comma)) {
|
|
node.expressions.push(this.parseMaybeAssign(noIn, refExpressionErrors));
|
|
}
|
|
|
|
this.toReferencedList(node.expressions);
|
|
return this.finishNode(node, "SequenceExpression");
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
parseMaybeAssign(noIn, refExpressionErrors, afterLeftParse, refNeedsArrowPos) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
|
|
if (this.isContextual("yield")) {
|
|
if (this.prodParam.hasYield) {
|
|
let left = this.parseYield(noIn);
|
|
|
|
if (afterLeftParse) {
|
|
left = afterLeftParse.call(this, left, startPos, startLoc);
|
|
}
|
|
|
|
return left;
|
|
} else {
|
|
this.state.exprAllowed = false;
|
|
}
|
|
}
|
|
|
|
let ownExpressionErrors;
|
|
|
|
if (refExpressionErrors) {
|
|
ownExpressionErrors = false;
|
|
} else {
|
|
refExpressionErrors = new ExpressionErrors();
|
|
ownExpressionErrors = true;
|
|
}
|
|
|
|
if (this.match(types.parenL) || this.match(types.name)) {
|
|
this.state.potentialArrowAt = this.state.start;
|
|
}
|
|
|
|
let left = this.parseMaybeConditional(noIn, refExpressionErrors, refNeedsArrowPos);
|
|
|
|
if (afterLeftParse) {
|
|
left = afterLeftParse.call(this, left, startPos, startLoc);
|
|
}
|
|
|
|
if (this.state.type.isAssign) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
const operator = this.state.value;
|
|
node.operator = operator;
|
|
|
|
if (operator === "??=") {
|
|
this.expectPlugin("logicalAssignment");
|
|
}
|
|
|
|
if (operator === "||=" || operator === "&&=") {
|
|
this.expectPlugin("logicalAssignment");
|
|
}
|
|
|
|
if (this.match(types.eq)) {
|
|
node.left = this.toAssignable(left);
|
|
refExpressionErrors.doubleProto = -1;
|
|
} else {
|
|
node.left = left;
|
|
}
|
|
|
|
if (refExpressionErrors.shorthandAssign >= node.left.start) {
|
|
refExpressionErrors.shorthandAssign = -1;
|
|
}
|
|
|
|
this.checkLVal(left, undefined, undefined, "assignment expression");
|
|
this.next();
|
|
node.right = this.parseMaybeAssign(noIn);
|
|
return this.finishNode(node, "AssignmentExpression");
|
|
} else if (ownExpressionErrors) {
|
|
this.checkExpressionErrors(refExpressionErrors, true);
|
|
}
|
|
|
|
return left;
|
|
}
|
|
|
|
parseMaybeConditional(noIn, refExpressionErrors, refNeedsArrowPos) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
const potentialArrowAt = this.state.potentialArrowAt;
|
|
const expr = this.parseExprOps(noIn, refExpressionErrors);
|
|
|
|
if (expr.type === "ArrowFunctionExpression" && expr.start === potentialArrowAt) {
|
|
return expr;
|
|
}
|
|
|
|
if (this.checkExpressionErrors(refExpressionErrors, false)) return expr;
|
|
return this.parseConditional(expr, noIn, startPos, startLoc, refNeedsArrowPos);
|
|
}
|
|
|
|
parseConditional(expr, noIn, startPos, startLoc, refNeedsArrowPos) {
|
|
if (this.eat(types.question)) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.test = expr;
|
|
node.consequent = this.parseMaybeAssign();
|
|
this.expect(types.colon);
|
|
node.alternate = this.parseMaybeAssign(noIn);
|
|
return this.finishNode(node, "ConditionalExpression");
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
parseExprOps(noIn, refExpressionErrors) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
const potentialArrowAt = this.state.potentialArrowAt;
|
|
const expr = this.parseMaybeUnary(refExpressionErrors);
|
|
|
|
if (expr.type === "ArrowFunctionExpression" && expr.start === potentialArrowAt) {
|
|
return expr;
|
|
}
|
|
|
|
if (this.checkExpressionErrors(refExpressionErrors, false)) {
|
|
return expr;
|
|
}
|
|
|
|
return this.parseExprOp(expr, startPos, startLoc, -1, noIn);
|
|
}
|
|
|
|
parseExprOp(left, leftStartPos, leftStartLoc, minPrec, noIn) {
|
|
let prec = this.state.type.binop;
|
|
|
|
if (prec != null && (!noIn || !this.match(types._in))) {
|
|
if (prec > minPrec) {
|
|
const operator = this.state.value;
|
|
|
|
if (operator === "|>" && this.state.inFSharpPipelineDirectBody) {
|
|
return left;
|
|
}
|
|
|
|
const node = this.startNodeAt(leftStartPos, leftStartLoc);
|
|
node.left = left;
|
|
node.operator = operator;
|
|
|
|
if (operator === "**" && left.type === "UnaryExpression" && (this.options.createParenthesizedExpressions || !(left.extra && left.extra.parenthesized))) {
|
|
this.raise(left.argument.start, ErrorMessages.UnexpectedTokenUnaryExponentiation);
|
|
}
|
|
|
|
const op = this.state.type;
|
|
const logical = op === types.logicalOR || op === types.logicalAND;
|
|
const coalesce = op === types.nullishCoalescing;
|
|
|
|
if (op === types.pipeline) {
|
|
this.expectPlugin("pipelineOperator");
|
|
this.state.inPipeline = true;
|
|
this.checkPipelineAtInfixOperator(left, leftStartPos);
|
|
} else if (coalesce) {
|
|
prec = types.logicalAND.binop;
|
|
}
|
|
|
|
this.next();
|
|
|
|
if (op === types.pipeline && this.getPluginOption("pipelineOperator", "proposal") === "minimal") {
|
|
if (this.match(types.name) && this.state.value === "await" && this.prodParam.hasAwait) {
|
|
throw this.raise(this.state.start, ErrorMessages.UnexpectedAwaitAfterPipelineBody);
|
|
}
|
|
}
|
|
|
|
node.right = this.parseExprOpRightExpr(op, prec, noIn);
|
|
this.finishNode(node, logical || coalesce ? "LogicalExpression" : "BinaryExpression");
|
|
const nextOp = this.state.type;
|
|
|
|
if (coalesce && (nextOp === types.logicalOR || nextOp === types.logicalAND) || logical && nextOp === types.nullishCoalescing) {
|
|
throw this.raise(this.state.start, ErrorMessages.MixingCoalesceWithLogical);
|
|
}
|
|
|
|
return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn);
|
|
}
|
|
}
|
|
|
|
return left;
|
|
}
|
|
|
|
parseExprOpRightExpr(op, prec, noIn) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
|
|
switch (op) {
|
|
case types.pipeline:
|
|
switch (this.getPluginOption("pipelineOperator", "proposal")) {
|
|
case "smart":
|
|
return this.withTopicPermittingContext(() => {
|
|
return this.parseSmartPipelineBody(this.parseExprOpBaseRightExpr(op, prec, noIn), startPos, startLoc);
|
|
});
|
|
|
|
case "fsharp":
|
|
return this.withSoloAwaitPermittingContext(() => {
|
|
return this.parseFSharpPipelineBody(prec, noIn);
|
|
});
|
|
}
|
|
|
|
default:
|
|
return this.parseExprOpBaseRightExpr(op, prec, noIn);
|
|
}
|
|
}
|
|
|
|
parseExprOpBaseRightExpr(op, prec, noIn) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
return this.parseExprOp(this.parseMaybeUnary(), startPos, startLoc, op.rightAssociative ? prec - 1 : prec, noIn);
|
|
}
|
|
|
|
parseMaybeUnary(refExpressionErrors) {
|
|
if (this.isContextual("await") && this.isAwaitAllowed()) {
|
|
return this.parseAwait();
|
|
} else if (this.state.type.prefix) {
|
|
const node = this.startNode();
|
|
const update = this.match(types.incDec);
|
|
node.operator = this.state.value;
|
|
node.prefix = true;
|
|
|
|
if (node.operator === "throw") {
|
|
this.expectPlugin("throwExpressions");
|
|
}
|
|
|
|
this.next();
|
|
node.argument = this.parseMaybeUnary();
|
|
this.checkExpressionErrors(refExpressionErrors, true);
|
|
|
|
if (update) {
|
|
this.checkLVal(node.argument, undefined, undefined, "prefix operation");
|
|
} else if (this.state.strict && node.operator === "delete") {
|
|
const arg = node.argument;
|
|
|
|
if (arg.type === "Identifier") {
|
|
this.raise(node.start, ErrorMessages.StrictDelete);
|
|
} else if ((arg.type === "MemberExpression" || arg.type === "OptionalMemberExpression") && arg.property.type === "PrivateName") {
|
|
this.raise(node.start, ErrorMessages.DeletePrivateField);
|
|
}
|
|
}
|
|
|
|
return this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
|
|
}
|
|
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
let expr = this.parseExprSubscripts(refExpressionErrors);
|
|
if (this.checkExpressionErrors(refExpressionErrors, false)) return expr;
|
|
|
|
while (this.state.type.postfix && !this.canInsertSemicolon()) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.operator = this.state.value;
|
|
node.prefix = false;
|
|
node.argument = expr;
|
|
this.checkLVal(expr, undefined, undefined, "postfix operation");
|
|
this.next();
|
|
expr = this.finishNode(node, "UpdateExpression");
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
parseExprSubscripts(refExpressionErrors) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
const potentialArrowAt = this.state.potentialArrowAt;
|
|
const expr = this.parseExprAtom(refExpressionErrors);
|
|
|
|
if (expr.type === "ArrowFunctionExpression" && expr.start === potentialArrowAt) {
|
|
return expr;
|
|
}
|
|
|
|
return this.parseSubscripts(expr, startPos, startLoc);
|
|
}
|
|
|
|
parseSubscripts(base, startPos, startLoc, noCalls) {
|
|
const state = {
|
|
optionalChainMember: false,
|
|
maybeAsyncArrow: this.atPossibleAsyncArrow(base),
|
|
stop: false
|
|
};
|
|
|
|
do {
|
|
const oldMaybeInAsyncArrowHead = this.state.maybeInAsyncArrowHead;
|
|
|
|
if (state.maybeAsyncArrow) {
|
|
this.state.maybeInAsyncArrowHead = true;
|
|
}
|
|
|
|
base = this.parseSubscript(base, startPos, startLoc, noCalls, state);
|
|
state.maybeAsyncArrow = false;
|
|
this.state.maybeInAsyncArrowHead = oldMaybeInAsyncArrowHead;
|
|
} while (!state.stop);
|
|
|
|
return base;
|
|
}
|
|
|
|
parseSubscript(base, startPos, startLoc, noCalls, state) {
|
|
if (!noCalls && this.eat(types.doubleColon)) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.object = base;
|
|
node.callee = this.parseNoCallExpr();
|
|
state.stop = true;
|
|
return this.parseSubscripts(this.finishNode(node, "BindExpression"), startPos, startLoc, noCalls);
|
|
}
|
|
|
|
let optional = false;
|
|
|
|
if (this.match(types.questionDot)) {
|
|
state.optionalChainMember = optional = true;
|
|
|
|
if (noCalls && this.lookaheadCharCode() === 40) {
|
|
state.stop = true;
|
|
return base;
|
|
}
|
|
|
|
this.next();
|
|
}
|
|
|
|
const computed = this.eat(types.bracketL);
|
|
|
|
if (optional && !this.match(types.parenL) && !this.match(types.backQuote) || computed || this.eat(types.dot)) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.object = base;
|
|
node.property = computed ? this.parseExpression() : this.parseMaybePrivateName(true);
|
|
node.computed = computed;
|
|
|
|
if (node.property.type === "PrivateName") {
|
|
if (node.object.type === "Super") {
|
|
this.raise(startPos, ErrorMessages.SuperPrivateField);
|
|
}
|
|
|
|
this.classScope.usePrivateName(node.property.id.name, node.property.start);
|
|
}
|
|
|
|
if (computed) {
|
|
this.expect(types.bracketR);
|
|
}
|
|
|
|
if (state.optionalChainMember) {
|
|
node.optional = optional;
|
|
return this.finishNode(node, "OptionalMemberExpression");
|
|
} else {
|
|
return this.finishNode(node, "MemberExpression");
|
|
}
|
|
} else if (!noCalls && this.match(types.parenL)) {
|
|
const oldMaybeInArrowParameters = this.state.maybeInArrowParameters;
|
|
const oldYieldPos = this.state.yieldPos;
|
|
const oldAwaitPos = this.state.awaitPos;
|
|
this.state.maybeInArrowParameters = true;
|
|
this.state.yieldPos = -1;
|
|
this.state.awaitPos = -1;
|
|
this.next();
|
|
let node = this.startNodeAt(startPos, startLoc);
|
|
node.callee = base;
|
|
|
|
if (optional) {
|
|
node.optional = true;
|
|
node.arguments = this.parseCallExpressionArguments(types.parenR, false);
|
|
} else {
|
|
node.arguments = this.parseCallExpressionArguments(types.parenR, state.maybeAsyncArrow, base.type === "Import", base.type !== "Super", node);
|
|
}
|
|
|
|
this.finishCallExpression(node, state.optionalChainMember);
|
|
|
|
if (state.maybeAsyncArrow && this.shouldParseAsyncArrow() && !optional) {
|
|
state.stop = true;
|
|
node = this.parseAsyncArrowFromCallExpression(this.startNodeAt(startPos, startLoc), node);
|
|
this.checkYieldAwaitInDefaultParams();
|
|
this.state.yieldPos = oldYieldPos;
|
|
this.state.awaitPos = oldAwaitPos;
|
|
} else {
|
|
this.toReferencedListDeep(node.arguments);
|
|
if (oldYieldPos !== -1) this.state.yieldPos = oldYieldPos;
|
|
|
|
if (!this.isAwaitAllowed() && !oldMaybeInArrowParameters || oldAwaitPos !== -1) {
|
|
this.state.awaitPos = oldAwaitPos;
|
|
}
|
|
}
|
|
|
|
this.state.maybeInArrowParameters = oldMaybeInArrowParameters;
|
|
return node;
|
|
} else if (this.match(types.backQuote)) {
|
|
return this.parseTaggedTemplateExpression(startPos, startLoc, base, state);
|
|
} else {
|
|
state.stop = true;
|
|
return base;
|
|
}
|
|
}
|
|
|
|
parseTaggedTemplateExpression(startPos, startLoc, base, state, typeArguments) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.tag = base;
|
|
node.quasi = this.parseTemplate(true);
|
|
if (typeArguments) node.typeParameters = typeArguments;
|
|
|
|
if (state.optionalChainMember) {
|
|
this.raise(startPos, ErrorMessages.OptionalChainingNoTemplate);
|
|
}
|
|
|
|
return this.finishNode(node, "TaggedTemplateExpression");
|
|
}
|
|
|
|
atPossibleAsyncArrow(base) {
|
|
return base.type === "Identifier" && base.name === "async" && this.state.lastTokEnd === base.end && !this.canInsertSemicolon() && base.end - base.start === 5 && base.start === this.state.potentialArrowAt;
|
|
}
|
|
|
|
finishCallExpression(node, optional) {
|
|
if (node.callee.type === "Import") {
|
|
if (node.arguments.length === 2) {
|
|
this.expectPlugin("moduleAttributes");
|
|
}
|
|
|
|
if (node.arguments.length === 0 || node.arguments.length > 2) {
|
|
this.raise(node.start, ErrorMessages.ImportCallArity, this.hasPlugin("moduleAttributes") ? "one or two arguments" : "one argument");
|
|
} else {
|
|
for (let _i = 0, _node$arguments = node.arguments; _i < _node$arguments.length; _i++) {
|
|
const arg = _node$arguments[_i];
|
|
|
|
if (arg.type === "SpreadElement") {
|
|
this.raise(arg.start, ErrorMessages.ImportCallSpreadArgument);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return this.finishNode(node, optional ? "OptionalCallExpression" : "CallExpression");
|
|
}
|
|
|
|
parseCallExpressionArguments(close, possibleAsyncArrow, dynamicImport, allowPlaceholder, nodeForExtra) {
|
|
const elts = [];
|
|
let innerParenStart;
|
|
let first = true;
|
|
const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody;
|
|
this.state.inFSharpPipelineDirectBody = false;
|
|
|
|
while (!this.eat(close)) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
this.expect(types.comma);
|
|
|
|
if (this.match(close)) {
|
|
if (dynamicImport && !this.hasPlugin("moduleAttributes")) {
|
|
this.raise(this.state.lastTokStart, ErrorMessages.ImportCallArgumentTrailingComma);
|
|
}
|
|
|
|
if (nodeForExtra) {
|
|
this.addExtra(nodeForExtra, "trailingComma", this.state.lastTokStart);
|
|
}
|
|
|
|
this.next();
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (this.match(types.parenL) && !innerParenStart) {
|
|
innerParenStart = this.state.start;
|
|
}
|
|
|
|
elts.push(this.parseExprListItem(false, possibleAsyncArrow ? new ExpressionErrors() : undefined, possibleAsyncArrow ? {
|
|
start: 0
|
|
} : undefined, allowPlaceholder));
|
|
}
|
|
|
|
if (possibleAsyncArrow && innerParenStart && this.shouldParseAsyncArrow()) {
|
|
this.unexpected();
|
|
}
|
|
|
|
this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody;
|
|
return elts;
|
|
}
|
|
|
|
shouldParseAsyncArrow() {
|
|
return this.match(types.arrow) && !this.canInsertSemicolon();
|
|
}
|
|
|
|
parseAsyncArrowFromCallExpression(node, call) {
|
|
var _call$extra;
|
|
|
|
this.expect(types.arrow);
|
|
this.parseArrowExpression(node, call.arguments, true, (_call$extra = call.extra) == null ? void 0 : _call$extra.trailingComma);
|
|
return node;
|
|
}
|
|
|
|
parseNoCallExpr() {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
return this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
|
|
}
|
|
|
|
parseExprAtom(refExpressionErrors) {
|
|
if (this.state.type === types.slash) this.readRegexp();
|
|
const canBeArrow = this.state.potentialArrowAt === this.state.start;
|
|
let node;
|
|
|
|
switch (this.state.type) {
|
|
case types._super:
|
|
node = this.startNode();
|
|
this.next();
|
|
|
|
if (this.match(types.parenL) && !this.scope.allowDirectSuper && !this.options.allowSuperOutsideMethod) {
|
|
this.raise(node.start, ErrorMessages.SuperNotAllowed);
|
|
} else if (!this.scope.allowSuper && !this.options.allowSuperOutsideMethod) {
|
|
this.raise(node.start, ErrorMessages.UnexpectedSuper);
|
|
}
|
|
|
|
if (!this.match(types.parenL) && !this.match(types.bracketL) && !this.match(types.dot)) {
|
|
this.raise(node.start, ErrorMessages.UnsupportedSuper);
|
|
}
|
|
|
|
return this.finishNode(node, "Super");
|
|
|
|
case types._import:
|
|
node = this.startNode();
|
|
this.next();
|
|
|
|
if (this.match(types.dot)) {
|
|
return this.parseImportMetaProperty(node);
|
|
}
|
|
|
|
if (!this.match(types.parenL)) {
|
|
this.raise(this.state.lastTokStart, ErrorMessages.UnsupportedImport);
|
|
}
|
|
|
|
return this.finishNode(node, "Import");
|
|
|
|
case types._this:
|
|
node = this.startNode();
|
|
this.next();
|
|
return this.finishNode(node, "ThisExpression");
|
|
|
|
case types.name:
|
|
{
|
|
node = this.startNode();
|
|
const containsEsc = this.state.containsEsc;
|
|
const id = this.parseIdentifier();
|
|
|
|
if (!containsEsc && id.name === "async" && this.match(types._function) && !this.canInsertSemicolon()) {
|
|
const last = this.state.context.length - 1;
|
|
|
|
if (this.state.context[last] !== types$1.functionStatement) {
|
|
throw new Error("Internal error");
|
|
}
|
|
|
|
this.state.context[last] = types$1.functionExpression;
|
|
this.next();
|
|
return this.parseFunction(node, undefined, true);
|
|
} else if (canBeArrow && !containsEsc && id.name === "async" && this.match(types.name) && !this.canInsertSemicolon()) {
|
|
const oldMaybeInArrowParameters = this.state.maybeInArrowParameters;
|
|
const oldMaybeInAsyncArrowHead = this.state.maybeInAsyncArrowHead;
|
|
const oldYieldPos = this.state.yieldPos;
|
|
const oldAwaitPos = this.state.awaitPos;
|
|
this.state.maybeInArrowParameters = true;
|
|
this.state.maybeInAsyncArrowHead = true;
|
|
this.state.yieldPos = -1;
|
|
this.state.awaitPos = -1;
|
|
const params = [this.parseIdentifier()];
|
|
this.expect(types.arrow);
|
|
this.checkYieldAwaitInDefaultParams();
|
|
this.state.maybeInArrowParameters = oldMaybeInArrowParameters;
|
|
this.state.maybeInAsyncArrowHead = oldMaybeInAsyncArrowHead;
|
|
this.state.yieldPos = oldYieldPos;
|
|
this.state.awaitPos = oldAwaitPos;
|
|
this.parseArrowExpression(node, params, true);
|
|
return node;
|
|
}
|
|
|
|
if (canBeArrow && this.match(types.arrow) && !this.canInsertSemicolon()) {
|
|
this.next();
|
|
this.parseArrowExpression(node, [id], false);
|
|
return node;
|
|
}
|
|
|
|
return id;
|
|
}
|
|
|
|
case types._do:
|
|
{
|
|
this.expectPlugin("doExpressions");
|
|
const node = this.startNode();
|
|
this.next();
|
|
const oldLabels = this.state.labels;
|
|
this.state.labels = [];
|
|
node.body = this.parseBlock();
|
|
this.state.labels = oldLabels;
|
|
return this.finishNode(node, "DoExpression");
|
|
}
|
|
|
|
case types.regexp:
|
|
{
|
|
const value = this.state.value;
|
|
node = this.parseLiteral(value.value, "RegExpLiteral");
|
|
node.pattern = value.pattern;
|
|
node.flags = value.flags;
|
|
return node;
|
|
}
|
|
|
|
case types.num:
|
|
return this.parseLiteral(this.state.value, "NumericLiteral");
|
|
|
|
case types.bigint:
|
|
return this.parseLiteral(this.state.value, "BigIntLiteral");
|
|
|
|
case types.string:
|
|
return this.parseLiteral(this.state.value, "StringLiteral");
|
|
|
|
case types._null:
|
|
node = this.startNode();
|
|
this.next();
|
|
return this.finishNode(node, "NullLiteral");
|
|
|
|
case types._true:
|
|
case types._false:
|
|
return this.parseBooleanLiteral();
|
|
|
|
case types.parenL:
|
|
return this.parseParenAndDistinguishExpression(canBeArrow);
|
|
|
|
case types.bracketBarL:
|
|
case types.bracketHashL:
|
|
{
|
|
this.expectPlugin("recordAndTuple");
|
|
const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody;
|
|
const close = this.state.type === types.bracketBarL ? types.bracketBarR : types.bracketR;
|
|
this.state.inFSharpPipelineDirectBody = false;
|
|
node = this.startNode();
|
|
this.next();
|
|
node.elements = this.parseExprList(close, true, refExpressionErrors, node);
|
|
this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody;
|
|
return this.finishNode(node, "TupleExpression");
|
|
}
|
|
|
|
case types.bracketL:
|
|
{
|
|
const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody;
|
|
this.state.inFSharpPipelineDirectBody = false;
|
|
node = this.startNode();
|
|
this.next();
|
|
node.elements = this.parseExprList(types.bracketR, true, refExpressionErrors, node);
|
|
|
|
if (!this.state.maybeInArrowParameters) {
|
|
this.toReferencedList(node.elements);
|
|
}
|
|
|
|
this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody;
|
|
return this.finishNode(node, "ArrayExpression");
|
|
}
|
|
|
|
case types.braceBarL:
|
|
case types.braceHashL:
|
|
{
|
|
this.expectPlugin("recordAndTuple");
|
|
const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody;
|
|
const close = this.state.type === types.braceBarL ? types.braceBarR : types.braceR;
|
|
this.state.inFSharpPipelineDirectBody = false;
|
|
const ret = this.parseObj(close, false, true, refExpressionErrors);
|
|
this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody;
|
|
return ret;
|
|
}
|
|
|
|
case types.braceL:
|
|
{
|
|
const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody;
|
|
this.state.inFSharpPipelineDirectBody = false;
|
|
const ret = this.parseObj(types.braceR, false, false, refExpressionErrors);
|
|
this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody;
|
|
return ret;
|
|
}
|
|
|
|
case types._function:
|
|
return this.parseFunctionExpression();
|
|
|
|
case types.at:
|
|
this.parseDecorators();
|
|
|
|
case types._class:
|
|
node = this.startNode();
|
|
this.takeDecorators(node);
|
|
return this.parseClass(node, false);
|
|
|
|
case types._new:
|
|
return this.parseNew();
|
|
|
|
case types.backQuote:
|
|
return this.parseTemplate(false);
|
|
|
|
case types.doubleColon:
|
|
{
|
|
node = this.startNode();
|
|
this.next();
|
|
node.object = null;
|
|
const callee = node.callee = this.parseNoCallExpr();
|
|
|
|
if (callee.type === "MemberExpression") {
|
|
return this.finishNode(node, "BindExpression");
|
|
} else {
|
|
throw this.raise(callee.start, ErrorMessages.UnsupportedBind);
|
|
}
|
|
}
|
|
|
|
case types.hash:
|
|
{
|
|
if (this.state.inPipeline) {
|
|
node = this.startNode();
|
|
|
|
if (this.getPluginOption("pipelineOperator", "proposal") !== "smart") {
|
|
this.raise(node.start, ErrorMessages.PrimaryTopicRequiresSmartPipeline);
|
|
}
|
|
|
|
this.next();
|
|
|
|
if (!this.primaryTopicReferenceIsAllowedInCurrentTopicContext()) {
|
|
this.raise(node.start, ErrorMessages.PrimaryTopicNotAllowed);
|
|
}
|
|
|
|
this.registerTopicReference();
|
|
return this.finishNode(node, "PipelinePrimaryTopicReference");
|
|
}
|
|
|
|
const nextCh = this.input.codePointAt(this.state.end);
|
|
|
|
if (isIdentifierStart(nextCh) || nextCh === 92) {
|
|
const start = this.state.start;
|
|
node = this.parseMaybePrivateName(true);
|
|
|
|
if (this.match(types._in)) {
|
|
this.expectPlugin("privateIn");
|
|
this.classScope.usePrivateName(node.id.name, node.start);
|
|
} else if (this.hasPlugin("privateIn")) {
|
|
this.raise(this.state.start, ErrorMessages.PrivateInExpectedIn, node.id.name);
|
|
} else {
|
|
throw this.unexpected(start);
|
|
}
|
|
|
|
return node;
|
|
}
|
|
}
|
|
|
|
default:
|
|
throw this.unexpected();
|
|
}
|
|
}
|
|
|
|
parseBooleanLiteral() {
|
|
const node = this.startNode();
|
|
node.value = this.match(types._true);
|
|
this.next();
|
|
return this.finishNode(node, "BooleanLiteral");
|
|
}
|
|
|
|
parseMaybePrivateName(isPrivateNameAllowed) {
|
|
const isPrivate = this.match(types.hash);
|
|
|
|
if (isPrivate) {
|
|
this.expectOnePlugin(["classPrivateProperties", "classPrivateMethods"]);
|
|
|
|
if (!isPrivateNameAllowed) {
|
|
this.raise(this.state.pos, ErrorMessages.UnexpectedPrivateField);
|
|
}
|
|
|
|
const node = this.startNode();
|
|
this.next();
|
|
this.assertNoSpace("Unexpected space between # and identifier");
|
|
node.id = this.parseIdentifier(true);
|
|
return this.finishNode(node, "PrivateName");
|
|
} else {
|
|
return this.parseIdentifier(true);
|
|
}
|
|
}
|
|
|
|
parseFunctionExpression() {
|
|
const node = this.startNode();
|
|
let meta = this.startNode();
|
|
this.next();
|
|
meta = this.createIdentifier(meta, "function");
|
|
|
|
if (this.prodParam.hasYield && this.eat(types.dot)) {
|
|
return this.parseMetaProperty(node, meta, "sent");
|
|
}
|
|
|
|
return this.parseFunction(node);
|
|
}
|
|
|
|
parseMetaProperty(node, meta, propertyName) {
|
|
node.meta = meta;
|
|
|
|
if (meta.name === "function" && propertyName === "sent") {
|
|
if (this.isContextual(propertyName)) {
|
|
this.expectPlugin("functionSent");
|
|
} else if (!this.hasPlugin("functionSent")) {
|
|
this.unexpected();
|
|
}
|
|
}
|
|
|
|
const containsEsc = this.state.containsEsc;
|
|
node.property = this.parseIdentifier(true);
|
|
|
|
if (node.property.name !== propertyName || containsEsc) {
|
|
this.raise(node.property.start, ErrorMessages.UnsupportedMetaProperty, meta.name, propertyName);
|
|
}
|
|
|
|
return this.finishNode(node, "MetaProperty");
|
|
}
|
|
|
|
parseImportMetaProperty(node) {
|
|
const id = this.createIdentifier(this.startNodeAtNode(node), "import");
|
|
this.expect(types.dot);
|
|
|
|
if (this.isContextual("meta")) {
|
|
if (!this.inModule) {
|
|
this.raiseWithData(id.start, {
|
|
code: "BABEL_PARSER_SOURCETYPE_MODULE_REQUIRED"
|
|
}, ErrorMessages.ImportMetaOutsideModule);
|
|
}
|
|
|
|
this.sawUnambiguousESM = true;
|
|
}
|
|
|
|
return this.parseMetaProperty(node, id, "meta");
|
|
}
|
|
|
|
parseLiteral(value, type, startPos, startLoc) {
|
|
startPos = startPos || this.state.start;
|
|
startLoc = startLoc || this.state.startLoc;
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
this.addExtra(node, "rawValue", value);
|
|
this.addExtra(node, "raw", this.input.slice(startPos, this.state.end));
|
|
node.value = value;
|
|
this.next();
|
|
return this.finishNode(node, type);
|
|
}
|
|
|
|
parseParenAndDistinguishExpression(canBeArrow) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
let val;
|
|
this.expect(types.parenL);
|
|
const oldMaybeInArrowParameters = this.state.maybeInArrowParameters;
|
|
const oldYieldPos = this.state.yieldPos;
|
|
const oldAwaitPos = this.state.awaitPos;
|
|
const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody;
|
|
this.state.maybeInArrowParameters = true;
|
|
this.state.yieldPos = -1;
|
|
this.state.awaitPos = -1;
|
|
this.state.inFSharpPipelineDirectBody = false;
|
|
const innerStartPos = this.state.start;
|
|
const innerStartLoc = this.state.startLoc;
|
|
const exprList = [];
|
|
const refExpressionErrors = new ExpressionErrors();
|
|
const refNeedsArrowPos = {
|
|
start: 0
|
|
};
|
|
let first = true;
|
|
let spreadStart;
|
|
let optionalCommaStart;
|
|
|
|
while (!this.match(types.parenR)) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
this.expect(types.comma, refNeedsArrowPos.start || null);
|
|
|
|
if (this.match(types.parenR)) {
|
|
optionalCommaStart = this.state.start;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (this.match(types.ellipsis)) {
|
|
const spreadNodeStartPos = this.state.start;
|
|
const spreadNodeStartLoc = this.state.startLoc;
|
|
spreadStart = this.state.start;
|
|
exprList.push(this.parseParenItem(this.parseRestBinding(), spreadNodeStartPos, spreadNodeStartLoc));
|
|
this.checkCommaAfterRest(41);
|
|
break;
|
|
} else {
|
|
exprList.push(this.parseMaybeAssign(false, refExpressionErrors, this.parseParenItem, refNeedsArrowPos));
|
|
}
|
|
}
|
|
|
|
const innerEndPos = this.state.start;
|
|
const innerEndLoc = this.state.startLoc;
|
|
this.expect(types.parenR);
|
|
this.state.maybeInArrowParameters = oldMaybeInArrowParameters;
|
|
this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody;
|
|
let arrowNode = this.startNodeAt(startPos, startLoc);
|
|
|
|
if (canBeArrow && this.shouldParseArrow() && (arrowNode = this.parseArrow(arrowNode))) {
|
|
if (!this.isAwaitAllowed() && !this.state.maybeInAsyncArrowHead) {
|
|
this.state.awaitPos = oldAwaitPos;
|
|
}
|
|
|
|
this.checkYieldAwaitInDefaultParams();
|
|
this.state.yieldPos = oldYieldPos;
|
|
this.state.awaitPos = oldAwaitPos;
|
|
|
|
for (let _i2 = 0; _i2 < exprList.length; _i2++) {
|
|
const param = exprList[_i2];
|
|
|
|
if (param.extra && param.extra.parenthesized) {
|
|
this.unexpected(param.extra.parenStart);
|
|
}
|
|
}
|
|
|
|
this.parseArrowExpression(arrowNode, exprList, false);
|
|
return arrowNode;
|
|
}
|
|
|
|
if (oldYieldPos !== -1) this.state.yieldPos = oldYieldPos;
|
|
if (oldAwaitPos !== -1) this.state.awaitPos = oldAwaitPos;
|
|
|
|
if (!exprList.length) {
|
|
this.unexpected(this.state.lastTokStart);
|
|
}
|
|
|
|
if (optionalCommaStart) this.unexpected(optionalCommaStart);
|
|
if (spreadStart) this.unexpected(spreadStart);
|
|
this.checkExpressionErrors(refExpressionErrors, true);
|
|
if (refNeedsArrowPos.start) this.unexpected(refNeedsArrowPos.start);
|
|
this.toReferencedListDeep(exprList, true);
|
|
|
|
if (exprList.length > 1) {
|
|
val = this.startNodeAt(innerStartPos, innerStartLoc);
|
|
val.expressions = exprList;
|
|
this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
|
|
} else {
|
|
val = exprList[0];
|
|
}
|
|
|
|
if (!this.options.createParenthesizedExpressions) {
|
|
this.addExtra(val, "parenthesized", true);
|
|
this.addExtra(val, "parenStart", startPos);
|
|
return val;
|
|
}
|
|
|
|
const parenExpression = this.startNodeAt(startPos, startLoc);
|
|
parenExpression.expression = val;
|
|
this.finishNode(parenExpression, "ParenthesizedExpression");
|
|
return parenExpression;
|
|
}
|
|
|
|
shouldParseArrow() {
|
|
return !this.canInsertSemicolon();
|
|
}
|
|
|
|
parseArrow(node) {
|
|
if (this.eat(types.arrow)) {
|
|
return node;
|
|
}
|
|
}
|
|
|
|
parseParenItem(node, startPos, startLoc) {
|
|
return node;
|
|
}
|
|
|
|
parseNew() {
|
|
const node = this.startNode();
|
|
let meta = this.startNode();
|
|
this.next();
|
|
meta = this.createIdentifier(meta, "new");
|
|
|
|
if (this.eat(types.dot)) {
|
|
const metaProp = this.parseMetaProperty(node, meta, "target");
|
|
|
|
if (!this.scope.inNonArrowFunction && !this.scope.inClass) {
|
|
let error = ErrorMessages.UnexpectedNewTarget;
|
|
|
|
if (this.hasPlugin("classProperties")) {
|
|
error += " or class properties";
|
|
}
|
|
|
|
this.raise(metaProp.start, error);
|
|
}
|
|
|
|
return metaProp;
|
|
}
|
|
|
|
node.callee = this.parseNoCallExpr();
|
|
|
|
if (node.callee.type === "Import") {
|
|
this.raise(node.callee.start, ErrorMessages.ImportCallNotNewExpression);
|
|
} else if (node.callee.type === "OptionalMemberExpression" || node.callee.type === "OptionalCallExpression") {
|
|
this.raise(this.state.lastTokEnd, ErrorMessages.OptionalChainingNoNew);
|
|
} else if (this.eat(types.questionDot)) {
|
|
this.raise(this.state.start, ErrorMessages.OptionalChainingNoNew);
|
|
}
|
|
|
|
this.parseNewArguments(node);
|
|
return this.finishNode(node, "NewExpression");
|
|
}
|
|
|
|
parseNewArguments(node) {
|
|
if (this.eat(types.parenL)) {
|
|
const args = this.parseExprList(types.parenR);
|
|
this.toReferencedList(args);
|
|
node.arguments = args;
|
|
} else {
|
|
node.arguments = [];
|
|
}
|
|
}
|
|
|
|
parseTemplateElement(isTagged) {
|
|
const elem = this.startNode();
|
|
|
|
if (this.state.value === null) {
|
|
if (!isTagged) {
|
|
this.raise(this.state.start + 1, ErrorMessages.InvalidEscapeSequenceTemplate);
|
|
}
|
|
}
|
|
|
|
elem.value = {
|
|
raw: this.input.slice(this.state.start, this.state.end).replace(/\r\n?/g, "\n"),
|
|
cooked: this.state.value
|
|
};
|
|
this.next();
|
|
elem.tail = this.match(types.backQuote);
|
|
return this.finishNode(elem, "TemplateElement");
|
|
}
|
|
|
|
parseTemplate(isTagged) {
|
|
const node = this.startNode();
|
|
this.next();
|
|
node.expressions = [];
|
|
let curElt = this.parseTemplateElement(isTagged);
|
|
node.quasis = [curElt];
|
|
|
|
while (!curElt.tail) {
|
|
this.expect(types.dollarBraceL);
|
|
node.expressions.push(this.parseExpression());
|
|
this.expect(types.braceR);
|
|
node.quasis.push(curElt = this.parseTemplateElement(isTagged));
|
|
}
|
|
|
|
this.next();
|
|
return this.finishNode(node, "TemplateLiteral");
|
|
}
|
|
|
|
parseObj(close, isPattern, isRecord, refExpressionErrors) {
|
|
const propHash = Object.create(null);
|
|
let first = true;
|
|
const node = this.startNode();
|
|
node.properties = [];
|
|
this.next();
|
|
|
|
while (!this.eat(close)) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
this.expect(types.comma);
|
|
|
|
if (this.match(close)) {
|
|
this.addExtra(node, "trailingComma", this.state.lastTokStart);
|
|
this.next();
|
|
break;
|
|
}
|
|
}
|
|
|
|
const prop = this.parseObjectMember(isPattern, refExpressionErrors);
|
|
|
|
if (!isPattern) {
|
|
this.checkDuplicatedProto(prop, propHash, refExpressionErrors);
|
|
}
|
|
|
|
if (prop.shorthand) {
|
|
this.addExtra(prop, "shorthand", true);
|
|
}
|
|
|
|
node.properties.push(prop);
|
|
}
|
|
|
|
let type = "ObjectExpression";
|
|
|
|
if (isPattern) {
|
|
type = "ObjectPattern";
|
|
} else if (isRecord) {
|
|
type = "RecordExpression";
|
|
}
|
|
|
|
return this.finishNode(node, type);
|
|
}
|
|
|
|
isAsyncProp(prop) {
|
|
return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" && (this.isLiteralPropertyName() || this.match(types.bracketL) || this.match(types.star)) && !this.hasPrecedingLineBreak();
|
|
}
|
|
|
|
parseObjectMember(isPattern, refExpressionErrors) {
|
|
let decorators = [];
|
|
|
|
if (this.match(types.at)) {
|
|
if (this.hasPlugin("decorators")) {
|
|
this.raise(this.state.start, ErrorMessages.UnsupportedPropertyDecorator);
|
|
}
|
|
|
|
while (this.match(types.at)) {
|
|
decorators.push(this.parseDecorator());
|
|
}
|
|
}
|
|
|
|
const prop = this.startNode();
|
|
let isGenerator = false;
|
|
let isAsync = false;
|
|
let startPos;
|
|
let startLoc;
|
|
|
|
if (this.match(types.ellipsis)) {
|
|
if (decorators.length) this.unexpected();
|
|
|
|
if (isPattern) {
|
|
this.next();
|
|
prop.argument = this.parseIdentifier();
|
|
this.checkCommaAfterRest(125);
|
|
return this.finishNode(prop, "RestElement");
|
|
}
|
|
|
|
return this.parseSpread();
|
|
}
|
|
|
|
if (decorators.length) {
|
|
prop.decorators = decorators;
|
|
decorators = [];
|
|
}
|
|
|
|
prop.method = false;
|
|
|
|
if (isPattern || refExpressionErrors) {
|
|
startPos = this.state.start;
|
|
startLoc = this.state.startLoc;
|
|
}
|
|
|
|
if (!isPattern) {
|
|
isGenerator = this.eat(types.star);
|
|
}
|
|
|
|
const containsEsc = this.state.containsEsc;
|
|
this.parsePropertyName(prop, false);
|
|
|
|
if (!isPattern && !containsEsc && !isGenerator && this.isAsyncProp(prop)) {
|
|
isAsync = true;
|
|
isGenerator = this.eat(types.star);
|
|
this.parsePropertyName(prop, false);
|
|
} else {
|
|
isAsync = false;
|
|
}
|
|
|
|
this.parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, refExpressionErrors, containsEsc);
|
|
return prop;
|
|
}
|
|
|
|
isGetterOrSetterMethod(prop, isPattern) {
|
|
return !isPattern && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && (this.isLiteralPropertyName() || this.match(types.bracketL));
|
|
}
|
|
|
|
getGetterSetterExpectedParamCount(method) {
|
|
return method.kind === "get" ? 0 : 1;
|
|
}
|
|
|
|
checkGetterSetterParams(method) {
|
|
const paramCount = this.getGetterSetterExpectedParamCount(method);
|
|
const start = method.start;
|
|
|
|
if (method.params.length !== paramCount) {
|
|
if (method.kind === "get") {
|
|
this.raise(start, ErrorMessages.BadGetterArity);
|
|
} else {
|
|
this.raise(start, ErrorMessages.BadSetterArity);
|
|
}
|
|
}
|
|
|
|
if (method.kind === "set" && method.params[method.params.length - 1].type === "RestElement") {
|
|
this.raise(start, ErrorMessages.BadSetterRestParameter);
|
|
}
|
|
}
|
|
|
|
parseObjectMethod(prop, isGenerator, isAsync, isPattern, containsEsc) {
|
|
if (isAsync || isGenerator || this.match(types.parenL)) {
|
|
if (isPattern) this.unexpected();
|
|
prop.kind = "method";
|
|
prop.method = true;
|
|
return this.parseMethod(prop, isGenerator, isAsync, false, false, "ObjectMethod");
|
|
}
|
|
|
|
if (!containsEsc && this.isGetterOrSetterMethod(prop, isPattern)) {
|
|
if (isGenerator || isAsync) this.unexpected();
|
|
prop.kind = prop.key.name;
|
|
this.parsePropertyName(prop, false);
|
|
this.parseMethod(prop, false, false, false, false, "ObjectMethod");
|
|
this.checkGetterSetterParams(prop);
|
|
return prop;
|
|
}
|
|
}
|
|
|
|
parseObjectProperty(prop, startPos, startLoc, isPattern, refExpressionErrors) {
|
|
prop.shorthand = false;
|
|
|
|
if (this.eat(types.colon)) {
|
|
prop.value = isPattern ? this.parseMaybeDefault(this.state.start, this.state.startLoc) : this.parseMaybeAssign(false, refExpressionErrors);
|
|
return this.finishNode(prop, "ObjectProperty");
|
|
}
|
|
|
|
if (!prop.computed && prop.key.type === "Identifier") {
|
|
this.checkReservedWord(prop.key.name, prop.key.start, true, true);
|
|
|
|
if (isPattern) {
|
|
prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key.__clone());
|
|
} else if (this.match(types.eq) && refExpressionErrors) {
|
|
if (refExpressionErrors.shorthandAssign === -1) {
|
|
refExpressionErrors.shorthandAssign = this.state.start;
|
|
}
|
|
|
|
prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key.__clone());
|
|
} else {
|
|
prop.value = prop.key.__clone();
|
|
}
|
|
|
|
prop.shorthand = true;
|
|
return this.finishNode(prop, "ObjectProperty");
|
|
}
|
|
}
|
|
|
|
parseObjPropValue(prop, startPos, startLoc, isGenerator, isAsync, isPattern, refExpressionErrors, containsEsc) {
|
|
const node = this.parseObjectMethod(prop, isGenerator, isAsync, isPattern, containsEsc) || this.parseObjectProperty(prop, startPos, startLoc, isPattern, refExpressionErrors);
|
|
if (!node) this.unexpected();
|
|
return node;
|
|
}
|
|
|
|
parsePropertyName(prop, isPrivateNameAllowed) {
|
|
if (this.eat(types.bracketL)) {
|
|
prop.computed = true;
|
|
prop.key = this.parseMaybeAssign();
|
|
this.expect(types.bracketR);
|
|
} else {
|
|
const oldInPropertyName = this.state.inPropertyName;
|
|
this.state.inPropertyName = true;
|
|
prop.key = this.match(types.num) || this.match(types.string) || this.match(types.bigint) ? this.parseExprAtom() : this.parseMaybePrivateName(isPrivateNameAllowed);
|
|
|
|
if (prop.key.type !== "PrivateName") {
|
|
prop.computed = false;
|
|
}
|
|
|
|
this.state.inPropertyName = oldInPropertyName;
|
|
}
|
|
|
|
return prop.key;
|
|
}
|
|
|
|
initFunction(node, isAsync) {
|
|
node.id = null;
|
|
node.generator = false;
|
|
node.async = !!isAsync;
|
|
}
|
|
|
|
parseMethod(node, isGenerator, isAsync, isConstructor, allowDirectSuper, type, inClassScope = false) {
|
|
const oldYieldPos = this.state.yieldPos;
|
|
const oldAwaitPos = this.state.awaitPos;
|
|
this.state.yieldPos = -1;
|
|
this.state.awaitPos = -1;
|
|
this.initFunction(node, isAsync);
|
|
node.generator = !!isGenerator;
|
|
const allowModifiers = isConstructor;
|
|
this.scope.enter(SCOPE_FUNCTION | SCOPE_SUPER | (inClassScope ? SCOPE_CLASS : 0) | (allowDirectSuper ? SCOPE_DIRECT_SUPER : 0));
|
|
this.prodParam.enter(functionFlags(isAsync, node.generator));
|
|
this.parseFunctionParams(node, allowModifiers);
|
|
this.parseFunctionBodyAndFinish(node, type, true);
|
|
this.prodParam.exit();
|
|
this.scope.exit();
|
|
this.state.yieldPos = oldYieldPos;
|
|
this.state.awaitPos = oldAwaitPos;
|
|
return node;
|
|
}
|
|
|
|
parseArrowExpression(node, params, isAsync, trailingCommaPos) {
|
|
this.scope.enter(SCOPE_FUNCTION | SCOPE_ARROW);
|
|
this.prodParam.enter(functionFlags(isAsync, false));
|
|
this.initFunction(node, isAsync);
|
|
const oldMaybeInArrowParameters = this.state.maybeInArrowParameters;
|
|
const oldYieldPos = this.state.yieldPos;
|
|
const oldAwaitPos = this.state.awaitPos;
|
|
|
|
if (params) {
|
|
this.state.maybeInArrowParameters = true;
|
|
this.setArrowFunctionParameters(node, params, trailingCommaPos);
|
|
}
|
|
|
|
this.state.maybeInArrowParameters = false;
|
|
this.state.yieldPos = -1;
|
|
this.state.awaitPos = -1;
|
|
this.parseFunctionBody(node, true);
|
|
this.prodParam.exit();
|
|
this.scope.exit();
|
|
this.state.maybeInArrowParameters = oldMaybeInArrowParameters;
|
|
this.state.yieldPos = oldYieldPos;
|
|
this.state.awaitPos = oldAwaitPos;
|
|
return this.finishNode(node, "ArrowFunctionExpression");
|
|
}
|
|
|
|
setArrowFunctionParameters(node, params, trailingCommaPos) {
|
|
node.params = this.toAssignableList(params, trailingCommaPos);
|
|
}
|
|
|
|
parseFunctionBodyAndFinish(node, type, isMethod = false) {
|
|
this.parseFunctionBody(node, false, isMethod);
|
|
this.finishNode(node, type);
|
|
}
|
|
|
|
parseFunctionBody(node, allowExpression, isMethod = false) {
|
|
const isExpression = allowExpression && !this.match(types.braceL);
|
|
const oldInParameters = this.state.inParameters;
|
|
this.state.inParameters = false;
|
|
|
|
if (isExpression) {
|
|
node.body = this.parseMaybeAssign();
|
|
this.checkParams(node, false, allowExpression, false);
|
|
} else {
|
|
const oldStrict = this.state.strict;
|
|
const oldLabels = this.state.labels;
|
|
this.state.labels = [];
|
|
this.prodParam.enter(this.prodParam.currentFlags() | PARAM_RETURN);
|
|
node.body = this.parseBlock(true, false, hasStrictModeDirective => {
|
|
const nonSimple = !this.isSimpleParamList(node.params);
|
|
|
|
if (hasStrictModeDirective && nonSimple) {
|
|
const errorPos = (node.kind === "method" || node.kind === "constructor") && !!node.key ? node.key.end : node.start;
|
|
this.raise(errorPos, ErrorMessages.IllegalLanguageModeDirective);
|
|
}
|
|
|
|
const strictModeChanged = !oldStrict && this.state.strict;
|
|
this.checkParams(node, !this.state.strict && !allowExpression && !isMethod && !nonSimple, allowExpression, strictModeChanged);
|
|
|
|
if (this.state.strict && node.id) {
|
|
this.checkLVal(node.id, BIND_OUTSIDE, undefined, "function name", undefined, strictModeChanged);
|
|
}
|
|
});
|
|
this.prodParam.exit();
|
|
this.state.labels = oldLabels;
|
|
}
|
|
|
|
this.state.inParameters = oldInParameters;
|
|
}
|
|
|
|
isSimpleParamList(params) {
|
|
for (let i = 0, len = params.length; i < len; i++) {
|
|
if (params[i].type !== "Identifier") return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
checkParams(node, allowDuplicates, isArrowFunction, strictModeChanged = true) {
|
|
const nameHash = Object.create(null);
|
|
|
|
for (let i = 0; i < node.params.length; i++) {
|
|
this.checkLVal(node.params[i], BIND_VAR, allowDuplicates ? null : nameHash, "function parameter list", undefined, strictModeChanged);
|
|
}
|
|
}
|
|
|
|
parseExprList(close, allowEmpty, refExpressionErrors, nodeForExtra) {
|
|
const elts = [];
|
|
let first = true;
|
|
|
|
while (!this.eat(close)) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
this.expect(types.comma);
|
|
|
|
if (this.match(close)) {
|
|
if (nodeForExtra) {
|
|
this.addExtra(nodeForExtra, "trailingComma", this.state.lastTokStart);
|
|
}
|
|
|
|
this.next();
|
|
break;
|
|
}
|
|
}
|
|
|
|
elts.push(this.parseExprListItem(allowEmpty, refExpressionErrors));
|
|
}
|
|
|
|
return elts;
|
|
}
|
|
|
|
parseExprListItem(allowEmpty, refExpressionErrors, refNeedsArrowPos, allowPlaceholder) {
|
|
let elt;
|
|
|
|
if (allowEmpty && this.match(types.comma)) {
|
|
elt = null;
|
|
} else if (this.match(types.ellipsis)) {
|
|
const spreadNodeStartPos = this.state.start;
|
|
const spreadNodeStartLoc = this.state.startLoc;
|
|
elt = this.parseParenItem(this.parseSpread(refExpressionErrors, refNeedsArrowPos), spreadNodeStartPos, spreadNodeStartLoc);
|
|
} else if (this.match(types.question)) {
|
|
this.expectPlugin("partialApplication");
|
|
|
|
if (!allowPlaceholder) {
|
|
this.raise(this.state.start, ErrorMessages.UnexpectedArgumentPlaceholder);
|
|
}
|
|
|
|
const node = this.startNode();
|
|
this.next();
|
|
elt = this.finishNode(node, "ArgumentPlaceholder");
|
|
} else {
|
|
elt = this.parseMaybeAssign(false, refExpressionErrors, this.parseParenItem, refNeedsArrowPos);
|
|
}
|
|
|
|
return elt;
|
|
}
|
|
|
|
parseIdentifier(liberal) {
|
|
const node = this.startNode();
|
|
const name = this.parseIdentifierName(node.start, liberal);
|
|
return this.createIdentifier(node, name);
|
|
}
|
|
|
|
createIdentifier(node, name) {
|
|
node.name = name;
|
|
node.loc.identifierName = name;
|
|
return this.finishNode(node, "Identifier");
|
|
}
|
|
|
|
parseIdentifierName(pos, liberal) {
|
|
let name;
|
|
|
|
if (this.match(types.name)) {
|
|
name = this.state.value;
|
|
} else if (this.state.type.keyword) {
|
|
name = this.state.type.keyword;
|
|
const context = this.state.context;
|
|
|
|
if ((name === "class" || name === "function") && context[context.length - 1].token === "function") {
|
|
context.pop();
|
|
}
|
|
} else {
|
|
throw this.unexpected();
|
|
}
|
|
|
|
if (liberal) {
|
|
this.state.type = types.name;
|
|
} else {
|
|
this.checkReservedWord(name, this.state.start, !!this.state.type.keyword, false);
|
|
}
|
|
|
|
this.next();
|
|
return name;
|
|
}
|
|
|
|
checkReservedWord(word, startLoc, checkKeywords, isBinding) {
|
|
if (this.prodParam.hasYield && word === "yield") {
|
|
this.raise(startLoc, ErrorMessages.YieldBindingIdentifier);
|
|
return;
|
|
}
|
|
|
|
if (word === "await") {
|
|
if (this.prodParam.hasAwait) {
|
|
this.raise(startLoc, ErrorMessages.AwaitBindingIdentifier);
|
|
return;
|
|
}
|
|
|
|
if (this.state.awaitPos === -1 && (this.state.maybeInAsyncArrowHead || this.isAwaitAllowed())) {
|
|
this.state.awaitPos = this.state.start;
|
|
}
|
|
}
|
|
|
|
if (this.scope.inClass && !this.scope.inNonArrowFunction && word === "arguments") {
|
|
this.raise(startLoc, ErrorMessages.ArgumentsDisallowedInInitializer);
|
|
return;
|
|
}
|
|
|
|
if (checkKeywords && isKeyword(word)) {
|
|
this.raise(startLoc, ErrorMessages.UnexpectedKeyword, word);
|
|
return;
|
|
}
|
|
|
|
const reservedTest = !this.state.strict ? isReservedWord : isBinding ? isStrictBindReservedWord : isStrictReservedWord;
|
|
|
|
if (reservedTest(word, this.inModule)) {
|
|
if (!this.prodParam.hasAwait && word === "await") {
|
|
this.raise(startLoc, ErrorMessages.AwaitNotInAsyncFunction);
|
|
} else {
|
|
this.raise(startLoc, ErrorMessages.UnexpectedReservedWord, word);
|
|
}
|
|
}
|
|
}
|
|
|
|
isAwaitAllowed() {
|
|
if (this.scope.inFunction) return this.prodParam.hasAwait;
|
|
if (this.options.allowAwaitOutsideFunction) return true;
|
|
|
|
if (this.hasPlugin("topLevelAwait")) {
|
|
return this.inModule && this.prodParam.hasAwait;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
parseAwait() {
|
|
const node = this.startNode();
|
|
this.next();
|
|
|
|
if (this.state.inParameters) {
|
|
this.raise(node.start, ErrorMessages.AwaitExpressionFormalParameter);
|
|
} else if (this.state.awaitPos === -1) {
|
|
this.state.awaitPos = node.start;
|
|
}
|
|
|
|
if (this.eat(types.star)) {
|
|
this.raise(node.start, ErrorMessages.ObsoleteAwaitStar);
|
|
}
|
|
|
|
if (!this.scope.inFunction && !this.options.allowAwaitOutsideFunction) {
|
|
if (this.hasPrecedingLineBreak() || this.match(types.plusMin) || this.match(types.parenL) || this.match(types.bracketL) || this.match(types.backQuote) || this.match(types.regexp) || this.match(types.slash) || this.hasPlugin("v8intrinsic") && this.match(types.modulo)) {
|
|
this.ambiguousScriptDifferentAst = true;
|
|
} else {
|
|
this.sawUnambiguousESM = true;
|
|
}
|
|
}
|
|
|
|
if (!this.state.soloAwait) {
|
|
node.argument = this.parseMaybeUnary();
|
|
}
|
|
|
|
return this.finishNode(node, "AwaitExpression");
|
|
}
|
|
|
|
parseYield(noIn) {
|
|
const node = this.startNode();
|
|
|
|
if (this.state.inParameters) {
|
|
this.raise(node.start, ErrorMessages.YieldInParameter);
|
|
} else if (this.state.yieldPos === -1) {
|
|
this.state.yieldPos = node.start;
|
|
}
|
|
|
|
this.next();
|
|
|
|
if (this.match(types.semi) || !this.match(types.star) && !this.state.type.startsExpr || this.hasPrecedingLineBreak()) {
|
|
node.delegate = false;
|
|
node.argument = null;
|
|
} else {
|
|
node.delegate = this.eat(types.star);
|
|
node.argument = this.parseMaybeAssign(noIn);
|
|
}
|
|
|
|
return this.finishNode(node, "YieldExpression");
|
|
}
|
|
|
|
checkPipelineAtInfixOperator(left, leftStartPos) {
|
|
if (this.getPluginOption("pipelineOperator", "proposal") === "smart") {
|
|
if (left.type === "SequenceExpression") {
|
|
this.raise(leftStartPos, ErrorMessages.PipelineHeadSequenceExpression);
|
|
}
|
|
}
|
|
}
|
|
|
|
parseSmartPipelineBody(childExpression, startPos, startLoc) {
|
|
const pipelineStyle = this.checkSmartPipelineBodyStyle(childExpression);
|
|
this.checkSmartPipelineBodyEarlyErrors(childExpression, pipelineStyle, startPos);
|
|
return this.parseSmartPipelineBodyInStyle(childExpression, pipelineStyle, startPos, startLoc);
|
|
}
|
|
|
|
checkSmartPipelineBodyEarlyErrors(childExpression, pipelineStyle, startPos) {
|
|
if (this.match(types.arrow)) {
|
|
throw this.raise(this.state.start, ErrorMessages.PipelineBodyNoArrow);
|
|
} else if (pipelineStyle === "PipelineTopicExpression" && childExpression.type === "SequenceExpression") {
|
|
this.raise(startPos, ErrorMessages.PipelineBodySequenceExpression);
|
|
}
|
|
}
|
|
|
|
parseSmartPipelineBodyInStyle(childExpression, pipelineStyle, startPos, startLoc) {
|
|
const bodyNode = this.startNodeAt(startPos, startLoc);
|
|
|
|
switch (pipelineStyle) {
|
|
case "PipelineBareFunction":
|
|
bodyNode.callee = childExpression;
|
|
break;
|
|
|
|
case "PipelineBareConstructor":
|
|
bodyNode.callee = childExpression.callee;
|
|
break;
|
|
|
|
case "PipelineBareAwaitedFunction":
|
|
bodyNode.callee = childExpression.argument;
|
|
break;
|
|
|
|
case "PipelineTopicExpression":
|
|
if (!this.topicReferenceWasUsedInCurrentTopicContext()) {
|
|
this.raise(startPos, ErrorMessages.PipelineTopicUnused);
|
|
}
|
|
|
|
bodyNode.expression = childExpression;
|
|
break;
|
|
|
|
default:
|
|
throw new Error(`Internal @babel/parser error: Unknown pipeline style (${pipelineStyle})`);
|
|
}
|
|
|
|
return this.finishNode(bodyNode, pipelineStyle);
|
|
}
|
|
|
|
checkSmartPipelineBodyStyle(expression) {
|
|
switch (expression.type) {
|
|
default:
|
|
return this.isSimpleReference(expression) ? "PipelineBareFunction" : "PipelineTopicExpression";
|
|
}
|
|
}
|
|
|
|
isSimpleReference(expression) {
|
|
switch (expression.type) {
|
|
case "MemberExpression":
|
|
return !expression.computed && this.isSimpleReference(expression.object);
|
|
|
|
case "Identifier":
|
|
return true;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
withTopicPermittingContext(callback) {
|
|
const outerContextTopicState = this.state.topicContext;
|
|
this.state.topicContext = {
|
|
maxNumOfResolvableTopics: 1,
|
|
maxTopicIndex: null
|
|
};
|
|
|
|
try {
|
|
return callback();
|
|
} finally {
|
|
this.state.topicContext = outerContextTopicState;
|
|
}
|
|
}
|
|
|
|
withTopicForbiddingContext(callback) {
|
|
const outerContextTopicState = this.state.topicContext;
|
|
this.state.topicContext = {
|
|
maxNumOfResolvableTopics: 0,
|
|
maxTopicIndex: null
|
|
};
|
|
|
|
try {
|
|
return callback();
|
|
} finally {
|
|
this.state.topicContext = outerContextTopicState;
|
|
}
|
|
}
|
|
|
|
withSoloAwaitPermittingContext(callback) {
|
|
const outerContextSoloAwaitState = this.state.soloAwait;
|
|
this.state.soloAwait = true;
|
|
|
|
try {
|
|
return callback();
|
|
} finally {
|
|
this.state.soloAwait = outerContextSoloAwaitState;
|
|
}
|
|
}
|
|
|
|
registerTopicReference() {
|
|
this.state.topicContext.maxTopicIndex = 0;
|
|
}
|
|
|
|
primaryTopicReferenceIsAllowedInCurrentTopicContext() {
|
|
return this.state.topicContext.maxNumOfResolvableTopics >= 1;
|
|
}
|
|
|
|
topicReferenceWasUsedInCurrentTopicContext() {
|
|
return this.state.topicContext.maxTopicIndex != null && this.state.topicContext.maxTopicIndex >= 0;
|
|
}
|
|
|
|
parseFSharpPipelineBody(prec, noIn) {
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
this.state.potentialArrowAt = this.state.start;
|
|
const oldInFSharpPipelineDirectBody = this.state.inFSharpPipelineDirectBody;
|
|
this.state.inFSharpPipelineDirectBody = true;
|
|
const ret = this.parseExprOp(this.parseMaybeUnary(), startPos, startLoc, prec, noIn);
|
|
this.state.inFSharpPipelineDirectBody = oldInFSharpPipelineDirectBody;
|
|
return ret;
|
|
}
|
|
|
|
}
|
|
|
|
const loopLabel = {
|
|
kind: "loop"
|
|
},
|
|
switchLabel = {
|
|
kind: "switch"
|
|
};
|
|
const FUNC_NO_FLAGS = 0b000,
|
|
FUNC_STATEMENT = 0b001,
|
|
FUNC_HANGING_STATEMENT = 0b010,
|
|
FUNC_NULLABLE_ID = 0b100;
|
|
class StatementParser extends ExpressionParser {
|
|
parseTopLevel(file, program) {
|
|
program.sourceType = this.options.sourceType;
|
|
program.interpreter = this.parseInterpreterDirective();
|
|
this.parseBlockBody(program, true, true, types.eof);
|
|
|
|
if (this.inModule && !this.options.allowUndeclaredExports && this.scope.undefinedExports.size > 0) {
|
|
for (let _i = 0, _Array$from = Array.from(this.scope.undefinedExports); _i < _Array$from.length; _i++) {
|
|
const [name] = _Array$from[_i];
|
|
const pos = this.scope.undefinedExports.get(name);
|
|
this.raise(pos, ErrorMessages.ModuleExportUndefined, name);
|
|
}
|
|
}
|
|
|
|
file.program = this.finishNode(program, "Program");
|
|
file.comments = this.state.comments;
|
|
if (this.options.tokens) file.tokens = this.tokens;
|
|
return this.finishNode(file, "File");
|
|
}
|
|
|
|
stmtToDirective(stmt) {
|
|
const expr = stmt.expression;
|
|
const directiveLiteral = this.startNodeAt(expr.start, expr.loc.start);
|
|
const directive = this.startNodeAt(stmt.start, stmt.loc.start);
|
|
const raw = this.input.slice(expr.start, expr.end);
|
|
const val = directiveLiteral.value = raw.slice(1, -1);
|
|
this.addExtra(directiveLiteral, "raw", raw);
|
|
this.addExtra(directiveLiteral, "rawValue", val);
|
|
directive.value = this.finishNodeAt(directiveLiteral, "DirectiveLiteral", expr.end, expr.loc.end);
|
|
return this.finishNodeAt(directive, "Directive", stmt.end, stmt.loc.end);
|
|
}
|
|
|
|
parseInterpreterDirective() {
|
|
if (!this.match(types.interpreterDirective)) {
|
|
return null;
|
|
}
|
|
|
|
const node = this.startNode();
|
|
node.value = this.state.value;
|
|
this.next();
|
|
return this.finishNode(node, "InterpreterDirective");
|
|
}
|
|
|
|
isLet(context) {
|
|
if (!this.isContextual("let")) {
|
|
return false;
|
|
}
|
|
|
|
const next = this.nextTokenStart();
|
|
const nextCh = this.input.charCodeAt(next);
|
|
if (nextCh === 91) return true;
|
|
if (context) return false;
|
|
if (nextCh === 123) return true;
|
|
|
|
if (isIdentifierStart(nextCh)) {
|
|
let pos = next + 1;
|
|
|
|
while (isIdentifierChar(this.input.charCodeAt(pos))) {
|
|
++pos;
|
|
}
|
|
|
|
const ident = this.input.slice(next, pos);
|
|
if (!keywordRelationalOperator.test(ident)) return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
parseStatement(context, topLevel) {
|
|
if (this.match(types.at)) {
|
|
this.parseDecorators(true);
|
|
}
|
|
|
|
return this.parseStatementContent(context, topLevel);
|
|
}
|
|
|
|
parseStatementContent(context, topLevel) {
|
|
let starttype = this.state.type;
|
|
const node = this.startNode();
|
|
let kind;
|
|
|
|
if (this.isLet(context)) {
|
|
starttype = types._var;
|
|
kind = "let";
|
|
}
|
|
|
|
switch (starttype) {
|
|
case types._break:
|
|
case types._continue:
|
|
return this.parseBreakContinueStatement(node, starttype.keyword);
|
|
|
|
case types._debugger:
|
|
return this.parseDebuggerStatement(node);
|
|
|
|
case types._do:
|
|
return this.parseDoStatement(node);
|
|
|
|
case types._for:
|
|
return this.parseForStatement(node);
|
|
|
|
case types._function:
|
|
if (this.lookaheadCharCode() === 46) break;
|
|
|
|
if (context) {
|
|
if (this.state.strict) {
|
|
this.raise(this.state.start, ErrorMessages.StrictFunction);
|
|
} else if (context !== "if" && context !== "label") {
|
|
this.raise(this.state.start, ErrorMessages.SloppyFunction);
|
|
}
|
|
}
|
|
|
|
return this.parseFunctionStatement(node, false, !context);
|
|
|
|
case types._class:
|
|
if (context) this.unexpected();
|
|
return this.parseClass(node, true);
|
|
|
|
case types._if:
|
|
return this.parseIfStatement(node);
|
|
|
|
case types._return:
|
|
return this.parseReturnStatement(node);
|
|
|
|
case types._switch:
|
|
return this.parseSwitchStatement(node);
|
|
|
|
case types._throw:
|
|
return this.parseThrowStatement(node);
|
|
|
|
case types._try:
|
|
return this.parseTryStatement(node);
|
|
|
|
case types._const:
|
|
case types._var:
|
|
kind = kind || this.state.value;
|
|
|
|
if (context && kind !== "var") {
|
|
this.raise(this.state.start, ErrorMessages.UnexpectedLexicalDeclaration);
|
|
}
|
|
|
|
return this.parseVarStatement(node, kind);
|
|
|
|
case types._while:
|
|
return this.parseWhileStatement(node);
|
|
|
|
case types._with:
|
|
return this.parseWithStatement(node);
|
|
|
|
case types.braceL:
|
|
return this.parseBlock();
|
|
|
|
case types.semi:
|
|
return this.parseEmptyStatement(node);
|
|
|
|
case types._export:
|
|
case types._import:
|
|
{
|
|
const nextTokenCharCode = this.lookaheadCharCode();
|
|
|
|
if (nextTokenCharCode === 40 || nextTokenCharCode === 46) {
|
|
break;
|
|
}
|
|
|
|
if (!this.options.allowImportExportEverywhere && !topLevel) {
|
|
this.raise(this.state.start, ErrorMessages.UnexpectedImportExport);
|
|
}
|
|
|
|
this.next();
|
|
let result;
|
|
|
|
if (starttype === types._import) {
|
|
result = this.parseImport(node);
|
|
|
|
if (result.type === "ImportDeclaration" && (!result.importKind || result.importKind === "value")) {
|
|
this.sawUnambiguousESM = true;
|
|
}
|
|
} else {
|
|
result = this.parseExport(node);
|
|
|
|
if (result.type === "ExportNamedDeclaration" && (!result.exportKind || result.exportKind === "value") || result.type === "ExportAllDeclaration" && (!result.exportKind || result.exportKind === "value") || result.type === "ExportDefaultDeclaration") {
|
|
this.sawUnambiguousESM = true;
|
|
}
|
|
}
|
|
|
|
this.assertModuleNodeAllowed(node);
|
|
return result;
|
|
}
|
|
|
|
default:
|
|
{
|
|
if (this.isAsyncFunction()) {
|
|
if (context) {
|
|
this.raise(this.state.start, ErrorMessages.AsyncFunctionInSingleStatementContext);
|
|
}
|
|
|
|
this.next();
|
|
return this.parseFunctionStatement(node, true, !context);
|
|
}
|
|
}
|
|
}
|
|
|
|
const maybeName = this.state.value;
|
|
const expr = this.parseExpression();
|
|
|
|
if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon)) {
|
|
return this.parseLabeledStatement(node, maybeName, expr, context);
|
|
} else {
|
|
return this.parseExpressionStatement(node, expr);
|
|
}
|
|
}
|
|
|
|
assertModuleNodeAllowed(node) {
|
|
if (!this.options.allowImportExportEverywhere && !this.inModule) {
|
|
this.raiseWithData(node.start, {
|
|
code: "BABEL_PARSER_SOURCETYPE_MODULE_REQUIRED"
|
|
}, ErrorMessages.ImportOutsideModule);
|
|
}
|
|
}
|
|
|
|
takeDecorators(node) {
|
|
const decorators = this.state.decoratorStack[this.state.decoratorStack.length - 1];
|
|
|
|
if (decorators.length) {
|
|
node.decorators = decorators;
|
|
this.resetStartLocationFromNode(node, decorators[0]);
|
|
this.state.decoratorStack[this.state.decoratorStack.length - 1] = [];
|
|
}
|
|
}
|
|
|
|
canHaveLeadingDecorator() {
|
|
return this.match(types._class);
|
|
}
|
|
|
|
parseDecorators(allowExport) {
|
|
const currentContextDecorators = this.state.decoratorStack[this.state.decoratorStack.length - 1];
|
|
|
|
while (this.match(types.at)) {
|
|
const decorator = this.parseDecorator();
|
|
currentContextDecorators.push(decorator);
|
|
}
|
|
|
|
if (this.match(types._export)) {
|
|
if (!allowExport) {
|
|
this.unexpected();
|
|
}
|
|
|
|
if (this.hasPlugin("decorators") && !this.getPluginOption("decorators", "decoratorsBeforeExport")) {
|
|
this.raise(this.state.start, ErrorMessages.DecoratorExportClass);
|
|
}
|
|
} else if (!this.canHaveLeadingDecorator()) {
|
|
throw this.raise(this.state.start, ErrorMessages.UnexpectedLeadingDecorator);
|
|
}
|
|
}
|
|
|
|
parseDecorator() {
|
|
this.expectOnePlugin(["decorators-legacy", "decorators"]);
|
|
const node = this.startNode();
|
|
this.next();
|
|
|
|
if (this.hasPlugin("decorators")) {
|
|
this.state.decoratorStack.push([]);
|
|
const startPos = this.state.start;
|
|
const startLoc = this.state.startLoc;
|
|
let expr;
|
|
|
|
if (this.eat(types.parenL)) {
|
|
expr = this.parseExpression();
|
|
this.expect(types.parenR);
|
|
} else {
|
|
expr = this.parseIdentifier(false);
|
|
|
|
while (this.eat(types.dot)) {
|
|
const node = this.startNodeAt(startPos, startLoc);
|
|
node.object = expr;
|
|
node.property = this.parseIdentifier(true);
|
|
node.computed = false;
|
|
expr = this.finishNode(node, "MemberExpression");
|
|
}
|
|
}
|
|
|
|
node.expression = this.parseMaybeDecoratorArguments(expr);
|
|
this.state.decoratorStack.pop();
|
|
} else {
|
|
node.expression = this.parseExprSubscripts();
|
|
}
|
|
|
|
return this.finishNode(node, "Decorator");
|
|
}
|
|
|
|
parseMaybeDecoratorArguments(expr) {
|
|
if (this.eat(types.parenL)) {
|
|
const node = this.startNodeAtNode(expr);
|
|
node.callee = expr;
|
|
node.arguments = this.parseCallExpressionArguments(types.parenR, false);
|
|
this.toReferencedList(node.arguments);
|
|
return this.finishNode(node, "CallExpression");
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
parseBreakContinueStatement(node, keyword) {
|
|
const isBreak = keyword === "break";
|
|
this.next();
|
|
|
|
if (this.isLineTerminator()) {
|
|
node.label = null;
|
|
} else {
|
|
node.label = this.parseIdentifier();
|
|
this.semicolon();
|
|
}
|
|
|
|
this.verifyBreakContinue(node, keyword);
|
|
return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement");
|
|
}
|
|
|
|
verifyBreakContinue(node, keyword) {
|
|
const isBreak = keyword === "break";
|
|
let i;
|
|
|
|
for (i = 0; i < this.state.labels.length; ++i) {
|
|
const lab = this.state.labels[i];
|
|
|
|
if (node.label == null || lab.name === node.label.name) {
|
|
if (lab.kind != null && (isBreak || lab.kind === "loop")) break;
|
|
if (node.label && isBreak) break;
|
|
}
|
|
}
|
|
|
|
if (i === this.state.labels.length) {
|
|
this.raise(node.start, ErrorMessages.IllegalBreakContinue, keyword);
|
|
}
|
|
}
|
|
|
|
parseDebuggerStatement(node) {
|
|
this.next();
|
|
this.semicolon();
|
|
return this.finishNode(node, "DebuggerStatement");
|
|
}
|
|
|
|
parseHeaderExpression() {
|
|
this.expect(types.parenL);
|
|
const val = this.parseExpression();
|
|
this.expect(types.parenR);
|
|
return val;
|
|
}
|
|
|
|
parseDoStatement(node) {
|
|
this.next();
|
|
this.state.labels.push(loopLabel);
|
|
node.body = this.withTopicForbiddingContext(() => this.parseStatement("do"));
|
|
this.state.labels.pop();
|
|
this.expect(types._while);
|
|
node.test = this.parseHeaderExpression();
|
|
this.eat(types.semi);
|
|
return this.finishNode(node, "DoWhileStatement");
|
|
}
|
|
|
|
parseForStatement(node) {
|
|
this.next();
|
|
this.state.labels.push(loopLabel);
|
|
let awaitAt = -1;
|
|
|
|
if (this.isAwaitAllowed() && this.eatContextual("await")) {
|
|
awaitAt = this.state.lastTokStart;
|
|
}
|
|
|
|
this.scope.enter(SCOPE_OTHER);
|
|
this.expect(types.parenL);
|
|
|
|
if (this.match(types.semi)) {
|
|
if (awaitAt > -1) {
|
|
this.unexpected(awaitAt);
|
|
}
|
|
|
|
return this.parseFor(node, null);
|
|
}
|
|
|
|
const isLet = this.isLet();
|
|
|
|
if (this.match(types._var) || this.match(types._const) || isLet) {
|
|
const init = this.startNode();
|
|
const kind = isLet ? "let" : this.state.value;
|
|
this.next();
|
|
this.parseVar(init, true, kind);
|
|
this.finishNode(init, "VariableDeclaration");
|
|
|
|
if ((this.match(types._in) || this.isContextual("of")) && init.declarations.length === 1) {
|
|
return this.parseForIn(node, init, awaitAt);
|
|
}
|
|
|
|
if (awaitAt > -1) {
|
|
this.unexpected(awaitAt);
|
|
}
|
|
|
|
return this.parseFor(node, init);
|
|
}
|
|
|
|
const refExpressionErrors = new ExpressionErrors();
|
|
const init = this.parseExpression(true, refExpressionErrors);
|
|
|
|
if (this.match(types._in) || this.isContextual("of")) {
|
|
this.toAssignable(init);
|
|
const description = this.isContextual("of") ? "for-of statement" : "for-in statement";
|
|
this.checkLVal(init, undefined, undefined, description);
|
|
return this.parseForIn(node, init, awaitAt);
|
|
} else {
|
|
this.checkExpressionErrors(refExpressionErrors, true);
|
|
}
|
|
|
|
if (awaitAt > -1) {
|
|
this.unexpected(awaitAt);
|
|
}
|
|
|
|
return this.parseFor(node, init);
|
|
}
|
|
|
|
parseFunctionStatement(node, isAsync, declarationPosition) {
|
|
this.next();
|
|
return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT), isAsync);
|
|
}
|
|
|
|
parseIfStatement(node) {
|
|
this.next();
|
|
node.test = this.parseHeaderExpression();
|
|
node.consequent = this.parseStatement("if");
|
|
node.alternate = this.eat(types._else) ? this.parseStatement("if") : null;
|
|
return this.finishNode(node, "IfStatement");
|
|
}
|
|
|
|
parseReturnStatement(node) {
|
|
if (!this.prodParam.hasReturn && !this.options.allowReturnOutsideFunction) {
|
|
this.raise(this.state.start, ErrorMessages.IllegalReturn);
|
|
}
|
|
|
|
this.next();
|
|
|
|
if (this.isLineTerminator()) {
|
|
node.argument = null;
|
|
} else {
|
|
node.argument = this.parseExpression();
|
|
this.semicolon();
|
|
}
|
|
|
|
return this.finishNode(node, "ReturnStatement");
|
|
}
|
|
|
|
parseSwitchStatement(node) {
|
|
this.next();
|
|
node.discriminant = this.parseHeaderExpression();
|
|
const cases = node.cases = [];
|
|
this.expect(types.braceL);
|
|
this.state.labels.push(switchLabel);
|
|
this.scope.enter(SCOPE_OTHER);
|
|
let cur;
|
|
|
|
for (let sawDefault; !this.match(types.braceR);) {
|
|
if (this.match(types._case) || this.match(types._default)) {
|
|
const isCase = this.match(types._case);
|
|
if (cur) this.finishNode(cur, "SwitchCase");
|
|
cases.push(cur = this.startNode());
|
|
cur.consequent = [];
|
|
this.next();
|
|
|
|
if (isCase) {
|
|
cur.test = this.parseExpression();
|
|
} else {
|
|
if (sawDefault) {
|
|
this.raise(this.state.lastTokStart, ErrorMessages.MultipleDefaultsInSwitch);
|
|
}
|
|
|
|
sawDefault = true;
|
|
cur.test = null;
|
|
}
|
|
|
|
this.expect(types.colon);
|
|
} else {
|
|
if (cur) {
|
|
cur.consequent.push(this.parseStatement(null));
|
|
} else {
|
|
this.unexpected();
|
|
}
|
|
}
|
|
}
|
|
|
|
this.scope.exit();
|
|
if (cur) this.finishNode(cur, "SwitchCase");
|
|
this.next();
|
|
this.state.labels.pop();
|
|
return this.finishNode(node, "SwitchStatement");
|
|
}
|
|
|
|
parseThrowStatement(node) {
|
|
this.next();
|
|
|
|
if (lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start))) {
|
|
this.raise(this.state.lastTokEnd, ErrorMessages.NewlineAfterThrow);
|
|
}
|
|
|
|
node.argument = this.parseExpression();
|
|
this.semicolon();
|
|
return this.finishNode(node, "ThrowStatement");
|
|
}
|
|
|
|
parseTryStatement(node) {
|
|
this.next();
|
|
node.block = this.parseBlock();
|
|
node.handler = null;
|
|
|
|
if (this.match(types._catch)) {
|
|
const clause = this.startNode();
|
|
this.next();
|
|
|
|
if (this.match(types.parenL)) {
|
|
this.expect(types.parenL);
|
|
clause.param = this.parseBindingAtom();
|
|
const simple = clause.param.type === "Identifier";
|
|
this.scope.enter(simple ? SCOPE_SIMPLE_CATCH : 0);
|
|
this.checkLVal(clause.param, BIND_LEXICAL, null, "catch clause");
|
|
this.expect(types.parenR);
|
|
} else {
|
|
clause.param = null;
|
|
this.scope.enter(SCOPE_OTHER);
|
|
}
|
|
|
|
clause.body = this.withTopicForbiddingContext(() => this.parseBlock(false, false));
|
|
this.scope.exit();
|
|
node.handler = this.finishNode(clause, "CatchClause");
|
|
}
|
|
|
|
node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;
|
|
|
|
if (!node.handler && !node.finalizer) {
|
|
this.raise(node.start, ErrorMessages.NoCatchOrFinally);
|
|
}
|
|
|
|
return this.finishNode(node, "TryStatement");
|
|
}
|
|
|
|
parseVarStatement(node, kind) {
|
|
this.next();
|
|
this.parseVar(node, false, kind);
|
|
this.semicolon();
|
|
return this.finishNode(node, "VariableDeclaration");
|
|
}
|
|
|
|
parseWhileStatement(node) {
|
|
this.next();
|
|
node.test = this.parseHeaderExpression();
|
|
this.state.labels.push(loopLabel);
|
|
node.body = this.withTopicForbiddingContext(() => this.parseStatement("while"));
|
|
this.state.labels.pop();
|
|
return this.finishNode(node, "WhileStatement");
|
|
}
|
|
|
|
parseWithStatement(node) {
|
|
if (this.state.strict) {
|
|
this.raise(this.state.start, ErrorMessages.StrictWith);
|
|
}
|
|
|
|
this.next();
|
|
node.object = this.parseHeaderExpression();
|
|
node.body = this.withTopicForbiddingContext(() => this.parseStatement("with"));
|
|
return this.finishNode(node, "WithStatement");
|
|
}
|
|
|
|
parseEmptyStatement(node) {
|
|
this.next();
|
|
return this.finishNode(node, "EmptyStatement");
|
|
}
|
|
|
|
parseLabeledStatement(node, maybeName, expr, context) {
|
|
for (let _i2 = 0, _this$state$labels = this.state.labels; _i2 < _this$state$labels.length; _i2++) {
|
|
const label = _this$state$labels[_i2];
|
|
|
|
if (label.name === maybeName) {
|
|
this.raise(expr.start, ErrorMessages.LabelRedeclaration, maybeName);
|
|
}
|
|
}
|
|
|
|
const kind = this.state.type.isLoop ? "loop" : this.match(types._switch) ? "switch" : null;
|
|
|
|
for (let i = this.state.labels.length - 1; i >= 0; i--) {
|
|
const label = this.state.labels[i];
|
|
|
|
if (label.statementStart === node.start) {
|
|
label.statementStart = this.state.start;
|
|
label.kind = kind;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
this.state.labels.push({
|
|
name: maybeName,
|
|
kind: kind,
|
|
statementStart: this.state.start
|
|
});
|
|
node.body = this.parseStatement(context ? context.indexOf("label") === -1 ? context + "label" : context : "label");
|
|
this.state.labels.pop();
|
|
node.label = expr;
|
|
return this.finishNode(node, "LabeledStatement");
|
|
}
|
|
|
|
parseExpressionStatement(node, expr) {
|
|
node.expression = expr;
|
|
this.semicolon();
|
|
return this.finishNode(node, "ExpressionStatement");
|
|
}
|
|
|
|
parseBlock(allowDirectives = false, createNewLexicalScope = true, afterBlockParse) {
|
|
const node = this.startNode();
|
|
this.expect(types.braceL);
|
|
|
|
if (createNewLexicalScope) {
|
|
this.scope.enter(SCOPE_OTHER);
|
|
}
|
|
|
|
this.parseBlockBody(node, allowDirectives, false, types.braceR, afterBlockParse);
|
|
|
|
if (createNewLexicalScope) {
|
|
this.scope.exit();
|
|
}
|
|
|
|
return this.finishNode(node, "BlockStatement");
|
|
}
|
|
|
|
isValidDirective(stmt) {
|
|
return stmt.type === "ExpressionStatement" && stmt.expression.type === "StringLiteral" && !stmt.expression.extra.parenthesized;
|
|
}
|
|
|
|
parseBlockBody(node, allowDirectives, topLevel, end, afterBlockParse) {
|
|
const body = node.body = [];
|
|
const directives = node.directives = [];
|
|
this.parseBlockOrModuleBlockBody(body, allowDirectives ? directives : undefined, topLevel, end, afterBlockParse);
|
|
}
|
|
|
|
parseBlockOrModuleBlockBody(body, directives, topLevel, end, afterBlockParse) {
|
|
const octalPositions = [];
|
|
const oldStrict = this.state.strict;
|
|
let hasStrictModeDirective = false;
|
|
let parsedNonDirective = false;
|
|
|
|
while (!this.match(end)) {
|
|
if (!parsedNonDirective && this.state.octalPositions.length) {
|
|
octalPositions.push(...this.state.octalPositions);
|
|
}
|
|
|
|
const stmt = this.parseStatement(null, topLevel);
|
|
|
|
if (directives && !parsedNonDirective && this.isValidDirective(stmt)) {
|
|
const directive = this.stmtToDirective(stmt);
|
|
directives.push(directive);
|
|
|
|
if (!hasStrictModeDirective && directive.value.value === "use strict") {
|
|
hasStrictModeDirective = true;
|
|
this.setStrict(true);
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
parsedNonDirective = true;
|
|
body.push(stmt);
|
|
}
|
|
|
|
if (this.state.strict && octalPositions.length) {
|
|
for (let _i3 = 0; _i3 < octalPositions.length; _i3++) {
|
|
const pos = octalPositions[_i3];
|
|
this.raise(pos, ErrorMessages.StrictOctalLiteral);
|
|
}
|
|
}
|
|
|
|
if (afterBlockParse) {
|
|
afterBlockParse.call(this, hasStrictModeDirective);
|
|
}
|
|
|
|
if (!oldStrict) {
|
|
this.setStrict(false);
|
|
}
|
|
|
|
this.next();
|
|
}
|
|
|
|
parseFor(node, init) {
|
|
node.init = init;
|
|
this.expect(types.semi);
|
|
node.test = this.match(types.semi) ? null : this.parseExpression();
|
|
this.expect(types.semi);
|
|
node.update = this.match(types.parenR) ? null : this.parseExpression();
|
|
this.expect(types.parenR);
|
|
node.body = this.withTopicForbiddingContext(() => this.parseStatement("for"));
|
|
this.scope.exit();
|
|
this.state.labels.pop();
|
|
return this.finishNode(node, "ForStatement");
|
|
}
|
|
|
|
parseForIn(node, init, awaitAt) {
|
|
const isForIn = this.match(types._in);
|
|
this.next();
|
|
|
|
if (isForIn) {
|
|
if (awaitAt > -1) this.unexpected(awaitAt);
|
|
} else {
|
|
node.await = awaitAt > -1;
|
|
}
|
|
|
|
if (init.type === "VariableDeclaration" && init.declarations[0].init != null && (!isForIn || this.state.strict || init.kind !== "var" || init.declarations[0].id.type !== "Identifier")) {
|
|
this.raise(init.start, ErrorMessages.ForInOfLoopInitializer, isForIn ? "for-in" : "for-of");
|
|
} else if (init.type === "AssignmentPattern") {
|
|
this.raise(init.start, ErrorMessages.InvalidLhs, "for-loop");
|
|
}
|
|
|
|
node.left = init;
|
|
node.right = isForIn ? this.parseExpression() : this.parseMaybeAssign();
|
|
this.expect(types.parenR);
|
|
node.body = this.withTopicForbiddingContext(() => this.parseStatement("for"));
|
|
this.scope.exit();
|
|
this.state.labels.pop();
|
|
return this.finishNode(node, isForIn ? "ForInStatement" : "ForOfStatement");
|
|
}
|
|
|
|
parseVar(node, isFor, kind) {
|
|
const declarations = node.declarations = [];
|
|
const isTypescript = this.hasPlugin("typescript");
|
|
node.kind = kind;
|
|
|
|
for (;;) {
|
|
const decl = this.startNode();
|
|
this.parseVarId(decl, kind);
|
|
|
|
if (this.eat(types.eq)) {
|
|
decl.init = this.parseMaybeAssign(isFor);
|
|
} else {
|
|
if (kind === "const" && !(this.match(types._in) || this.isContextual("of"))) {
|
|
if (!isTypescript) {
|
|
this.unexpected();
|
|
}
|
|
} else if (decl.id.type !== "Identifier" && !(isFor && (this.match(types._in) || this.isContextual("of")))) {
|
|
this.raise(this.state.lastTokEnd, ErrorMessages.DeclarationMissingInitializer, "Complex binding patterns");
|
|
}
|
|
|
|
decl.init = null;
|
|
}
|
|
|
|
declarations.push(this.finishNode(decl, "VariableDeclarator"));
|
|
if (!this.eat(types.comma)) break;
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
parseVarId(decl, kind) {
|
|
decl.id = this.parseBindingAtom();
|
|
this.checkLVal(decl.id, kind === "var" ? BIND_VAR : BIND_LEXICAL, undefined, "variable declaration", kind !== "var");
|
|
}
|
|
|
|
parseFunction(node, statement = FUNC_NO_FLAGS, isAsync = false) {
|
|
const isStatement = statement & FUNC_STATEMENT;
|
|
const isHangingStatement = statement & FUNC_HANGING_STATEMENT;
|
|
const requireId = !!isStatement && !(statement & FUNC_NULLABLE_ID);
|
|
this.initFunction(node, isAsync);
|
|
|
|
if (this.match(types.star) && isHangingStatement) {
|
|
this.raise(this.state.start, ErrorMessages.GeneratorInSingleStatementContext);
|
|
}
|
|
|
|
node.generator = this.eat(types.star);
|
|
|
|
if (isStatement) {
|
|
node.id = this.parseFunctionId(requireId);
|
|
}
|
|
|
|
const oldMaybeInArrowParameters = this.state.maybeInArrowParameters;
|
|
const oldYieldPos = this.state.yieldPos;
|
|
const oldAwaitPos = this.state.awaitPos;
|
|
this.state.maybeInArrowParameters = false;
|
|
this.state.yieldPos = -1;
|
|
this.state.awaitPos = -1;
|
|
this.scope.enter(SCOPE_FUNCTION);
|
|
this.prodParam.enter(functionFlags(isAsync, node.generator));
|
|
|
|
if (!isStatement) {
|
|
node.id = this.parseFunctionId();
|
|
}
|
|
|
|
this.parseFunctionParams(node);
|
|
this.withTopicForbiddingContext(() => {
|
|
this.parseFunctionBodyAndFinish(node, isStatement ? "FunctionDeclaration" : "FunctionExpression");
|
|
});
|
|
this.prodParam.exit();
|
|
this.scope.exit();
|
|
|
|
if (isStatement && !isHangingStatement) {
|
|
this.registerFunctionStatementId(node);
|
|
}
|
|
|
|
this.state.maybeInArrowParameters = oldMaybeInArrowParameters;
|
|
this.state.yieldPos = oldYieldPos;
|
|
this.state.awaitPos = oldAwaitPos;
|
|
return node;
|
|
}
|
|
|
|
parseFunctionId(requireId) {
|
|
return requireId || this.match(types.name) ? this.parseIdentifier() : null;
|
|
}
|
|
|
|
parseFunctionParams(node, allowModifiers) {
|
|
const oldInParameters = this.state.inParameters;
|
|
this.state.inParameters = true;
|
|
this.expect(types.parenL);
|
|
node.params = this.parseBindingList(types.parenR, 41, false, allowModifiers);
|
|
this.state.inParameters = oldInParameters;
|
|
this.checkYieldAwaitInDefaultParams();
|
|
}
|
|
|
|
registerFunctionStatementId(node) {
|
|
if (!node.id) return;
|
|
this.scope.declareName(node.id.name, this.state.strict || node.generator || node.async ? this.scope.treatFunctionsAsVar ? BIND_VAR : BIND_LEXICAL : BIND_FUNCTION, node.id.start);
|
|
}
|
|
|
|
parseClass(node, isStatement, optionalId) {
|
|
this.next();
|
|
this.takeDecorators(node);
|
|
const oldStrict = this.state.strict;
|
|
this.state.strict = true;
|
|
this.parseClassId(node, isStatement, optionalId);
|
|
this.parseClassSuper(node);
|
|
node.body = this.parseClassBody(!!node.superClass, oldStrict);
|
|
this.state.strict = oldStrict;
|
|
return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression");
|
|
}
|
|
|
|
isClassProperty() {
|
|
return this.match(types.eq) || this.match(types.semi) || this.match(types.braceR);
|
|
}
|
|
|
|
isClassMethod() {
|
|
return this.match(types.parenL);
|
|
}
|
|
|
|
isNonstaticConstructor(method) {
|
|
return !method.computed && !method.static && (method.key.name === "constructor" || method.key.value === "constructor");
|
|
}
|
|
|
|
parseClassBody(constructorAllowsSuper, oldStrict) {
|
|
this.classScope.enter();
|
|
const state = {
|
|
hadConstructor: false
|
|
};
|
|
let decorators = [];
|
|
const classBody = this.startNode();
|
|
classBody.body = [];
|
|
this.expect(types.braceL);
|
|
this.withTopicForbiddingContext(() => {
|
|
while (!this.match(types.braceR)) {
|
|
if (this.eat(types.semi)) {
|
|
if (decorators.length > 0) {
|
|
throw this.raise(this.state.lastTokEnd, ErrorMessages.DecoratorSemicolon);
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if (this.match(types.at)) {
|
|
decorators.push(this.parseDecorator());
|
|
continue;
|
|
}
|
|
|
|
const member = this.startNode();
|
|
|
|
if (decorators.length) {
|
|
member.decorators = decorators;
|
|
this.resetStartLocationFromNode(member, decorators[0]);
|
|
decorators = [];
|
|
}
|
|
|
|
this.parseClassMember(classBody, member, state, constructorAllowsSuper);
|
|
|
|
if (member.kind === "constructor" && member.decorators && member.decorators.length > 0) {
|
|
this.raise(member.start, ErrorMessages.DecoratorConstructor);
|
|
}
|
|
}
|
|
});
|
|
|
|
if (!oldStrict) {
|
|
this.state.strict = false;
|
|
}
|
|
|
|
this.next();
|
|
|
|
if (decorators.length) {
|
|
throw this.raise(this.state.start, ErrorMessages.TrailingDecorator);
|
|
}
|
|
|
|
this.classScope.exit();
|
|
return this.finishNode(classBody, "ClassBody");
|
|
}
|
|
|
|
parseClassMemberFromModifier(classBody, member) {
|
|
const containsEsc = this.state.containsEsc;
|
|
const key = this.parseIdentifier(true);
|
|
|
|
if (this.isClassMethod()) {
|
|
const method = member;
|
|
method.kind = "method";
|
|
method.computed = false;
|
|
method.key = key;
|
|
method.static = false;
|
|
this.pushClassMethod(classBody, method, false, false, false, false);
|
|
return true;
|
|
} else if (this.isClassProperty()) {
|
|
const prop = member;
|
|
prop.computed = false;
|
|
prop.key = key;
|
|
prop.static = false;
|
|
classBody.body.push(this.parseClassProperty(prop));
|
|
return true;
|
|
} else if (containsEsc) {
|
|
throw this.unexpected();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
parseClassMember(classBody, member, state, constructorAllowsSuper) {
|
|
const isStatic = this.isContextual("static");
|
|
|
|
if (isStatic && this.parseClassMemberFromModifier(classBody, member)) {
|
|
return;
|
|
}
|
|
|
|
this.parseClassMemberWithIsStatic(classBody, member, state, isStatic, constructorAllowsSuper);
|
|
}
|
|
|
|
parseClassMemberWithIsStatic(classBody, member, state, isStatic, constructorAllowsSuper) {
|
|
const publicMethod = member;
|
|
const privateMethod = member;
|
|
const publicProp = member;
|
|
const privateProp = member;
|
|
const method = publicMethod;
|
|
const publicMember = publicMethod;
|
|
member.static = isStatic;
|
|
|
|
if (this.eat(types.star)) {
|
|
method.kind = "method";
|
|
this.parseClassPropertyName(method);
|
|
|
|
if (method.key.type === "PrivateName") {
|
|
this.pushClassPrivateMethod(classBody, privateMethod, true, false);
|
|
return;
|
|
}
|
|
|
|
if (this.isNonstaticConstructor(publicMethod)) {
|
|
this.raise(publicMethod.key.start, ErrorMessages.ConstructorIsGenerator);
|
|
}
|
|
|
|
this.pushClassMethod(classBody, publicMethod, true, false, false, false);
|
|
return;
|
|
}
|
|
|
|
const containsEsc = this.state.containsEsc;
|
|
const key = this.parseClassPropertyName(member);
|
|
const isPrivate = key.type === "PrivateName";
|
|
const isSimple = key.type === "Identifier";
|
|
const maybeQuestionTokenStart = this.state.start;
|
|
this.parsePostMemberNameModifiers(publicMember);
|
|
|
|
if (this.isClassMethod()) {
|
|
method.kind = "method";
|
|
|
|
if (isPrivate) {
|
|
this.pushClassPrivateMethod(classBody, privateMethod, false, false);
|
|
return;
|
|
}
|
|
|
|
const isConstructor = this.isNonstaticConstructor(publicMethod);
|
|
let allowsDirectSuper = false;
|
|
|
|
if (isConstructor) {
|
|
publicMethod.kind = "constructor";
|
|
|
|
if (state.hadConstructor && !this.hasPlugin("typescript")) {
|
|
this.raise(key.start, ErrorMessages.DuplicateConstructor);
|
|
}
|
|
|
|
state.hadConstructor = true;
|
|
allowsDirectSuper = constructorAllowsSuper;
|
|
}
|
|
|
|
this.pushClassMethod(classBody, publicMethod, false, false, isConstructor, allowsDirectSuper);
|
|
} else if (this.isClassProperty()) {
|
|
if (isPrivate) {
|
|
this.pushClassPrivateProperty(classBody, privateProp);
|
|
} else {
|
|
this.pushClassProperty(classBody, publicProp);
|
|
}
|
|
} else if (isSimple && key.name === "async" && !containsEsc && !this.isLineTerminator()) {
|
|
const isGenerator = this.eat(types.star);
|
|
|
|
if (publicMember.optional) {
|
|
this.unexpected(maybeQuestionTokenStart);
|
|
}
|
|
|
|
method.kind = "method";
|
|
this.parseClassPropertyName(method);
|
|
this.parsePostMemberNameModifiers(publicMember);
|
|
|
|
if (method.key.type === "PrivateName") {
|
|
this.pushClassPrivateMethod(classBody, privateMethod, isGenerator, true);
|
|
} else {
|
|
if (this.isNonstaticConstructor(publicMethod)) {
|
|
this.raise(publicMethod.key.start, ErrorMessages.ConstructorIsAsync);
|
|
}
|
|
|
|
this.pushClassMethod(classBody, publicMethod, isGenerator, true, false, false);
|
|
}
|
|
} else if (isSimple && (key.name === "get" || key.name === "set") && !containsEsc && !(this.match(types.star) && this.isLineTerminator())) {
|
|
method.kind = key.name;
|
|
this.parseClassPropertyName(publicMethod);
|
|
|
|
if (method.key.type === "PrivateName") {
|
|
this.pushClassPrivateMethod(classBody, privateMethod, false, false);
|
|
} else {
|
|
if (this.isNonstaticConstructor(publicMethod)) {
|
|
this.raise(publicMethod.key.start, ErrorMessages.ConstructorIsAccessor);
|
|
}
|
|
|
|
this.pushClassMethod(classBody, publicMethod, false, false, false, false);
|
|
}
|
|
|
|
this.checkGetterSetterParams(publicMethod);
|
|
} else if (this.isLineTerminator()) {
|
|
if (isPrivate) {
|
|
this.pushClassPrivateProperty(classBody, privateProp);
|
|
} else {
|
|
this.pushClassProperty(classBody, publicProp);
|
|
}
|
|
} else {
|
|
this.unexpected();
|
|
}
|
|
}
|
|
|
|
parseClassPropertyName(member) {
|
|
const key = this.parsePropertyName(member, true);
|
|
|
|
if (!member.computed && member.static && (key.name === "prototype" || key.value === "prototype")) {
|
|
this.raise(key.start, ErrorMessages.StaticPrototype);
|
|
}
|
|
|
|
if (key.type === "PrivateName" && key.id.name === "constructor") {
|
|
this.raise(key.start, ErrorMessages.ConstructorClassPrivateField);
|
|
}
|
|
|
|
return key;
|
|
}
|
|
|
|
pushClassProperty(classBody, prop) {
|
|
if (!prop.computed && (prop.key.name === "constructor" || prop.key.value === "constructor")) {
|
|
this.raise(prop.key.start, ErrorMessages.ConstructorClassField);
|
|
}
|
|
|
|
classBody.body.push(this.parseClassProperty(prop));
|
|
}
|
|
|
|
pushClassPrivateProperty(classBody, prop) {
|
|
this.expectPlugin("classPrivateProperties", prop.key.start);
|
|
const node = this.parseClassPrivateProperty(prop);
|
|
classBody.body.push(node);
|
|
this.classScope.declarePrivateName(node.key.id.name, CLASS_ELEMENT_OTHER, node.key.start);
|
|
}
|
|
|
|
pushClassMethod(classBody, method, isGenerator, isAsync, isConstructor, allowsDirectSuper) {
|
|
classBody.body.push(this.parseMethod(method, isGenerator, isAsync, isConstructor, allowsDirectSuper, "ClassMethod", true));
|
|
}
|
|
|
|
pushClassPrivateMethod(classBody, method, isGenerator, isAsync) {
|
|
this.expectPlugin("classPrivateMethods", method.key.start);
|
|
const node = this.parseMethod(method, isGenerator, isAsync, false, false, "ClassPrivateMethod", true);
|
|
classBody.body.push(node);
|
|
const kind = node.kind === "get" ? node.static ? CLASS_ELEMENT_STATIC_GETTER : CLASS_ELEMENT_INSTANCE_GETTER : node.kind === "set" ? node.static ? CLASS_ELEMENT_STATIC_SETTER : CLASS_ELEMENT_INSTANCE_SETTER : CLASS_ELEMENT_OTHER;
|
|
this.classScope.declarePrivateName(node.key.id.name, kind, node.key.start);
|
|
}
|
|
|
|
parsePostMemberNameModifiers(methodOrProp) {}
|
|
|
|
parseAccessModifier() {
|
|
return undefined;
|
|
}
|
|
|
|
parseClassPrivateProperty(node) {
|
|
this.scope.enter(SCOPE_CLASS | SCOPE_SUPER);
|
|
this.prodParam.enter(PARAM);
|
|
node.value = this.eat(types.eq) ? this.parseMaybeAssign() : null;
|
|
this.semicolon();
|
|
this.prodParam.exit();
|
|
this.scope.exit();
|
|
return this.finishNode(node, "ClassPrivateProperty");
|
|
}
|
|
|
|
parseClassProperty(node) {
|
|
if (!node.typeAnnotation) {
|
|
this.expectPlugin("classProperties");
|
|
}
|
|
|
|
this.scope.enter(SCOPE_CLASS | SCOPE_SUPER);
|
|
this.prodParam.enter(PARAM);
|
|
|
|
if (this.match(types.eq)) {
|
|
this.expectPlugin("classProperties");
|
|
this.next();
|
|
node.value = this.parseMaybeAssign();
|
|
} else {
|
|
node.value = null;
|
|
}
|
|
|
|
this.semicolon();
|
|
this.prodParam.exit();
|
|
this.scope.exit();
|
|
return this.finishNode(node, "ClassProperty");
|
|
}
|
|
|
|
parseClassId(node, isStatement, optionalId, bindingType = BIND_CLASS) {
|
|
if (this.match(types.name)) {
|
|
node.id = this.parseIdentifier();
|
|
|
|
if (isStatement) {
|
|
this.checkLVal(node.id, bindingType, undefined, "class name");
|
|
}
|
|
} else {
|
|
if (optionalId || !isStatement) {
|
|
node.id = null;
|
|
} else {
|
|
this.unexpected(null, ErrorMessages.MissingClassName);
|
|
}
|
|
}
|
|
}
|
|
|
|
parseClassSuper(node) {
|
|
node.superClass = this.eat(types._extends) ? this.parseExprSubscripts() : null;
|
|
}
|
|
|
|
parseExport(node) {
|
|
const hasDefault = this.maybeParseExportDefaultSpecifier(node);
|
|
const parseAfterDefault = !hasDefault || this.eat(types.comma);
|
|
const hasStar = parseAfterDefault && this.eatExportStar(node);
|
|
const hasNamespace = hasStar && this.maybeParseExportNamespaceSpecifier(node);
|
|
const parseAfterNamespace = parseAfterDefault && (!hasNamespace || this.eat(types.comma));
|
|
const isFromRequired = hasDefault || hasStar;
|
|
|
|
if (hasStar && !hasNamespace) {
|
|
if (hasDefault) this.unexpected();
|
|
this.parseExportFrom(node, true);
|
|
return this.finishNode(node, "ExportAllDeclaration");
|
|
}
|
|
|
|
const hasSpecifiers = this.maybeParseExportNamedSpecifiers(node);
|
|
|
|
if (hasDefault && parseAfterDefault && !hasStar && !hasSpecifiers || hasNamespace && parseAfterNamespace && !hasSpecifiers) {
|
|
throw this.unexpected(null, types.braceL);
|
|
}
|
|
|
|
let hasDeclaration;
|
|
|
|
if (isFromRequired || hasSpecifiers) {
|
|
hasDeclaration = false;
|
|
this.parseExportFrom(node, isFromRequired);
|
|
} else {
|
|
hasDeclaration = this.maybeParseExportDeclaration(node);
|
|
}
|
|
|
|
if (isFromRequired || hasSpecifiers || hasDeclaration) {
|
|
this.checkExport(node, true, false, !!node.source);
|
|
return this.finishNode(node, "ExportNamedDeclaration");
|
|
}
|
|
|
|
if (this.eat(types._default)) {
|
|
node.declaration = this.parseExportDefaultExpression();
|
|
this.checkExport(node, true, true);
|
|
return this.finishNode(node, "ExportDefaultDeclaration");
|
|
}
|
|
|
|
throw this.unexpected(null, types.braceL);
|
|
}
|
|
|
|
eatExportStar(node) {
|
|
return this.eat(types.star);
|
|
}
|
|
|
|
maybeParseExportDefaultSpecifier(node) {
|
|
if (this.isExportDefaultSpecifier()) {
|
|
this.expectPlugin("exportDefaultFrom");
|
|
const specifier = this.startNode();
|
|
specifier.exported = this.parseIdentifier(true);
|
|
node.specifiers = [this.finishNode(specifier, "ExportDefaultSpecifier")];
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
maybeParseExportNamespaceSpecifier(node) {
|
|
if (this.isContextual("as")) {
|
|
if (!node.specifiers) node.specifiers = [];
|
|
const specifier = this.startNodeAt(this.state.lastTokStart, this.state.lastTokStartLoc);
|
|
this.next();
|
|
specifier.exported = this.parseIdentifier(true);
|
|
node.specifiers.push(this.finishNode(specifier, "ExportNamespaceSpecifier"));
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
maybeParseExportNamedSpecifiers(node) {
|
|
if (this.match(types.braceL)) {
|
|
if (!node.specifiers) node.specifiers = [];
|
|
node.specifiers.push(...this.parseExportSpecifiers());
|
|
node.source = null;
|
|
node.declaration = null;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
maybeParseExportDeclaration(node) {
|
|
if (this.shouldParseExportDeclaration()) {
|
|
if (this.isContextual("async")) {
|
|
const next = this.nextTokenStart();
|
|
|
|
if (!this.isUnparsedContextual(next, "function")) {
|
|
this.unexpected(next, types._function);
|
|
}
|
|
}
|
|
|
|
node.specifiers = [];
|
|
node.source = null;
|
|
node.declaration = this.parseExportDeclaration(node);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
isAsyncFunction() {
|
|
if (!this.isContextual("async")) return false;
|
|
const next = this.nextTokenStart();
|
|
return !lineBreak.test(this.input.slice(this.state.pos, next)) && this.isUnparsedContextual(next, "function");
|
|
}
|
|
|
|
parseExportDefaultExpression() {
|
|
const expr = this.startNode();
|
|
const isAsync = this.isAsyncFunction();
|
|
|
|
if (this.match(types._function) || isAsync) {
|
|
this.next();
|
|
|
|
if (isAsync) {
|
|
this.next();
|
|
}
|
|
|
|
return this.parseFunction(expr, FUNC_STATEMENT | FUNC_NULLABLE_ID, isAsync);
|
|
} else if (this.match(types._class)) {
|
|
return this.parseClass(expr, true, true);
|
|
} else if (this.match(types.at)) {
|
|
if (this.hasPlugin("decorators") && this.getPluginOption("decorators", "decoratorsBeforeExport")) {
|
|
this.raise(this.state.start, ErrorMessages.DecoratorBeforeExport);
|
|
}
|
|
|
|
this.parseDecorators(false);
|
|
return this.parseClass(expr, true, true);
|
|
} else if (this.match(types._const) || this.match(types._var) || this.isLet()) {
|
|
throw this.raise(this.state.start, ErrorMessages.UnsupportedDefaultExport);
|
|
} else {
|
|
const res = this.parseMaybeAssign();
|
|
this.semicolon();
|
|
return res;
|
|
}
|
|
}
|
|
|
|
parseExportDeclaration(node) {
|
|
return this.parseStatement(null);
|
|
}
|
|
|
|
isExportDefaultSpecifier() {
|
|
if (this.match(types.name)) {
|
|
const value = this.state.value;
|
|
|
|
if (value === "async" || value === "let") {
|
|
return false;
|
|
}
|
|
|
|
if ((value === "type" || value === "interface") && !this.state.containsEsc) {
|
|
const l = this.lookahead();
|
|
|
|
if (l.type === types.name && l.value !== "from" || l.type === types.braceL) {
|
|
this.expectOnePlugin(["flow", "typescript"]);
|
|
return false;
|
|
}
|
|
}
|
|
} else if (!this.match(types._default)) {
|
|
return false;
|
|
}
|
|
|
|
const next = this.nextTokenStart();
|
|
return this.input.charCodeAt(next) === 44 || this.isUnparsedContextual(next, "from");
|
|
}
|
|
|
|
parseExportFrom(node, expect) {
|
|
if (this.eatContextual("from")) {
|
|
node.source = this.parseImportSource();
|
|
this.checkExport(node);
|
|
} else {
|
|
if (expect) {
|
|
this.unexpected();
|
|
} else {
|
|
node.source = null;
|
|
}
|
|
}
|
|
|
|
this.semicolon();
|
|
}
|
|
|
|
shouldParseExportDeclaration() {
|
|
if (this.match(types.at)) {
|
|
this.expectOnePlugin(["decorators", "decorators-legacy"]);
|
|
|
|
if (this.hasPlugin("decorators")) {
|
|
if (this.getPluginOption("decorators", "decoratorsBeforeExport")) {
|
|
this.unexpected(this.state.start, ErrorMessages.DecoratorBeforeExport);
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return this.state.type.keyword === "var" || this.state.type.keyword === "const" || this.state.type.keyword === "function" || this.state.type.keyword === "class" || this.isLet() || this.isAsyncFunction();
|
|
}
|
|
|
|
checkExport(node, checkNames, isDefault, isFrom) {
|
|
if (checkNames) {
|
|
if (isDefault) {
|
|
this.checkDuplicateExports(node, "default");
|
|
} else if (node.specifiers && node.specifiers.length) {
|
|
for (let _i4 = 0, _node$specifiers = node.specifiers; _i4 < _node$specifiers.length; _i4++) {
|
|
const specifier = _node$specifiers[_i4];
|
|
this.checkDuplicateExports(specifier, specifier.exported.name);
|
|
|
|
if (!isFrom && specifier.local) {
|
|
this.checkReservedWord(specifier.local.name, specifier.local.start, true, false);
|
|
this.scope.checkLocalExport(specifier.local);
|
|
}
|
|
}
|
|
} else if (node.declaration) {
|
|
if (node.declaration.type === "FunctionDeclaration" || node.declaration.type === "ClassDeclaration") {
|
|
const id = node.declaration.id;
|
|
if (!id) throw new Error("Assertion failure");
|
|
this.checkDuplicateExports(node, id.name);
|
|
} else if (node.declaration.type === "VariableDeclaration") {
|
|
for (let _i5 = 0, _node$declaration$dec = node.declaration.declarations; _i5 < _node$declaration$dec.length; _i5++) {
|
|
const declaration = _node$declaration$dec[_i5];
|
|
this.checkDeclaration(declaration.id);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const currentContextDecorators = this.state.decoratorStack[this.state.decoratorStack.length - 1];
|
|
|
|
if (currentContextDecorators.length) {
|
|
const isClass = node.declaration && (node.declaration.type === "ClassDeclaration" || node.declaration.type === "ClassExpression");
|
|
|
|
if (!node.declaration || !isClass) {
|
|
throw this.raise(node.start, ErrorMessages.UnsupportedDecoratorExport);
|
|
}
|
|
|
|
this.takeDecorators(node.declaration);
|
|
}
|
|
}
|
|
|
|
checkDeclaration(node) {
|
|
if (node.type === "Identifier") {
|
|
this.checkDuplicateExports(node, node.name);
|
|
} else if (node.type === "ObjectPattern") {
|
|
for (let _i6 = 0, _node$properties = node.properties; _i6 < _node$properties.length; _i6++) {
|
|
const prop = _node$properties[_i6];
|
|
this.checkDeclaration(prop);
|
|
}
|
|
} else if (node.type === "ArrayPattern") {
|
|
for (let _i7 = 0, _node$elements = node.elements; _i7 < _node$elements.length; _i7++) {
|
|
const elem = _node$elements[_i7];
|
|
|
|
if (elem) {
|
|
this.checkDeclaration(elem);
|
|
}
|
|
}
|
|
} else if (node.type === "ObjectProperty") {
|
|
this.checkDeclaration(node.value);
|
|
} else if (node.type === "RestElement") {
|
|
this.checkDeclaration(node.argument);
|
|
} else if (node.type === "AssignmentPattern") {
|
|
this.checkDeclaration(node.left);
|
|
}
|
|
}
|
|
|
|
checkDuplicateExports(node, name) {
|
|
if (this.state.exportedIdentifiers.indexOf(name) > -1) {
|
|
this.raise(node.start, name === "default" ? ErrorMessages.DuplicateDefaultExport : ErrorMessages.DuplicateExport, name);
|
|
}
|
|
|
|
this.state.exportedIdentifiers.push(name);
|
|
}
|
|
|
|
parseExportSpecifiers() {
|
|
const nodes = [];
|
|
let first = true;
|
|
this.expect(types.braceL);
|
|
|
|
while (!this.eat(types.braceR)) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
this.expect(types.comma);
|
|
if (this.eat(types.braceR)) break;
|
|
}
|
|
|
|
const node = this.startNode();
|
|
node.local = this.parseIdentifier(true);
|
|
node.exported = this.eatContextual("as") ? this.parseIdentifier(true) : node.local.__clone();
|
|
nodes.push(this.finishNode(node, "ExportSpecifier"));
|
|
}
|
|
|
|
return nodes;
|
|
}
|
|
|
|
parseImport(node) {
|
|
node.specifiers = [];
|
|
|
|
if (!this.match(types.string)) {
|
|
const hasDefault = this.maybeParseDefaultImportSpecifier(node);
|
|
const parseNext = !hasDefault || this.eat(types.comma);
|
|
const hasStar = parseNext && this.maybeParseStarImportSpecifier(node);
|
|
if (parseNext && !hasStar) this.parseNamedImportSpecifiers(node);
|
|
this.expectContextual("from");
|
|
}
|
|
|
|
node.source = this.parseImportSource();
|
|
const attributes = this.maybeParseModuleAttributes();
|
|
|
|
if (attributes) {
|
|
node.attributes = attributes;
|
|
}
|
|
|
|
this.semicolon();
|
|
return this.finishNode(node, "ImportDeclaration");
|
|
}
|
|
|
|
parseImportSource() {
|
|
if (!this.match(types.string)) this.unexpected();
|
|
return this.parseExprAtom();
|
|
}
|
|
|
|
shouldParseDefaultImport(node) {
|
|
return this.match(types.name);
|
|
}
|
|
|
|
parseImportSpecifierLocal(node, specifier, type, contextDescription) {
|
|
specifier.local = this.parseIdentifier();
|
|
this.checkLVal(specifier.local, BIND_LEXICAL, undefined, contextDescription);
|
|
node.specifiers.push(this.finishNode(specifier, type));
|
|
}
|
|
|
|
maybeParseModuleAttributes() {
|
|
if (this.match(types._with) && !this.hasPrecedingLineBreak()) {
|
|
this.expectPlugin("moduleAttributes");
|
|
this.next();
|
|
} else {
|
|
if (this.hasPlugin("moduleAttributes")) return [];
|
|
return null;
|
|
}
|
|
|
|
const attrs = [];
|
|
const attributes = new Set();
|
|
|
|
do {
|
|
const node = this.startNode();
|
|
node.key = this.parseIdentifier(true);
|
|
|
|
if (node.key.name !== "type") {
|
|
this.raise(node.key.start, ErrorMessages.ModuleAttributeDifferentFromType, node.key.name);
|
|
}
|
|
|
|
if (attributes.has(node.key.name)) {
|
|
this.raise(node.key.start, ErrorMessages.ModuleAttributesWithDuplicateKeys, node.key.name);
|
|
}
|
|
|
|
attributes.add(node.key.name);
|
|
this.expect(types.colon);
|
|
|
|
if (!this.match(types.string)) {
|
|
throw this.unexpected(this.state.start, ErrorMessages.ModuleAttributeInvalidValue);
|
|
}
|
|
|
|
node.value = this.parseLiteral(this.state.value, "StringLiteral");
|
|
this.finishNode(node, "ImportAttribute");
|
|
attrs.push(node);
|
|
} while (this.eat(types.comma));
|
|
|
|
return attrs;
|
|
}
|
|
|
|
maybeParseDefaultImportSpecifier(node) {
|
|
if (this.shouldParseDefaultImport(node)) {
|
|
this.parseImportSpecifierLocal(node, this.startNode(), "ImportDefaultSpecifier", "default import specifier");
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
maybeParseStarImportSpecifier(node) {
|
|
if (this.match(types.star)) {
|
|
const specifier = this.startNode();
|
|
this.next();
|
|
this.expectContextual("as");
|
|
this.parseImportSpecifierLocal(node, specifier, "ImportNamespaceSpecifier", "import namespace specifier");
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
parseNamedImportSpecifiers(node) {
|
|
let first = true;
|
|
this.expect(types.braceL);
|
|
|
|
while (!this.eat(types.braceR)) {
|
|
if (first) {
|
|
first = false;
|
|
} else {
|
|
if (this.eat(types.colon)) {
|
|
throw this.raise(this.state.start, ErrorMessages.DestructureNamedImport);
|
|
}
|
|
|
|
this.expect(types.comma);
|
|
if (this.eat(types.braceR)) break;
|
|
}
|
|
|
|
this.parseImportSpecifier(node);
|
|
}
|
|
}
|
|
|
|
parseImportSpecifier(node) {
|
|
const specifier = this.startNode();
|
|
specifier.imported = this.parseIdentifier(true);
|
|
|
|
if (this.eatContextual("as")) {
|
|
specifier.local = this.parseIdentifier();
|
|
} else {
|
|
this.checkReservedWord(specifier.imported.name, specifier.start, true, true);
|
|
specifier.local = specifier.imported.__clone();
|
|
}
|
|
|
|
this.checkLVal(specifier.local, BIND_LEXICAL, undefined, "import specifier");
|
|
node.specifiers.push(this.finishNode(specifier, "ImportSpecifier"));
|
|
}
|
|
|
|
}
|
|
|
|
class ClassScope {
|
|
constructor() {
|
|
this.privateNames = new Set();
|
|
this.loneAccessors = new Map();
|
|
this.undefinedPrivateNames = new Map();
|
|
}
|
|
|
|
}
|
|
class ClassScopeHandler {
|
|
constructor(raise) {
|
|
this.stack = [];
|
|
this.undefinedPrivateNames = new Map();
|
|
this.raise = raise;
|
|
}
|
|
|
|
current() {
|
|
return this.stack[this.stack.length - 1];
|
|
}
|
|
|
|
enter() {
|
|
this.stack.push(new ClassScope());
|
|
}
|
|
|
|
exit() {
|
|
const oldClassScope = this.stack.pop();
|
|
const current = this.current();
|
|
|
|
for (let _i = 0, _Array$from = Array.from(oldClassScope.undefinedPrivateNames); _i < _Array$from.length; _i++) {
|
|
const [name, pos] = _Array$from[_i];
|
|
|
|
if (current) {
|
|
if (!current.undefinedPrivateNames.has(name)) {
|
|
current.undefinedPrivateNames.set(name, pos);
|
|
}
|
|
} else {
|
|
this.raise(pos, ErrorMessages.InvalidPrivateFieldResolution, name);
|
|
}
|
|
}
|
|
}
|
|
|
|
declarePrivateName(name, elementType, pos) {
|
|
const classScope = this.current();
|
|
let redefined = classScope.privateNames.has(name);
|
|
|
|
if (elementType & CLASS_ELEMENT_KIND_ACCESSOR) {
|
|
const accessor = redefined && classScope.loneAccessors.get(name);
|
|
|
|
if (accessor) {
|
|
const oldStatic = accessor & CLASS_ELEMENT_FLAG_STATIC;
|
|
const newStatic = elementType & CLASS_ELEMENT_FLAG_STATIC;
|
|
const oldKind = accessor & CLASS_ELEMENT_KIND_ACCESSOR;
|
|
const newKind = elementType & CLASS_ELEMENT_KIND_ACCESSOR;
|
|
redefined = oldKind === newKind || oldStatic !== newStatic;
|
|
if (!redefined) classScope.loneAccessors.delete(name);
|
|
} else if (!redefined) {
|
|
classScope.loneAccessors.set(name, elementType);
|
|
}
|
|
}
|
|
|
|
if (redefined) {
|
|
this.raise(pos, ErrorMessages.PrivateNameRedeclaration, name);
|
|
}
|
|
|
|
classScope.privateNames.add(name);
|
|
classScope.undefinedPrivateNames.delete(name);
|
|
}
|
|
|
|
usePrivateName(name, pos) {
|
|
let classScope;
|
|
|
|
for (let _i2 = 0, _this$stack = this.stack; _i2 < _this$stack.length; _i2++) {
|
|
classScope = _this$stack[_i2];
|
|
if (classScope.privateNames.has(name)) return;
|
|
}
|
|
|
|
if (classScope) {
|
|
classScope.undefinedPrivateNames.set(name, pos);
|
|
} else {
|
|
this.raise(pos, ErrorMessages.InvalidPrivateFieldResolution, name);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
class Parser extends StatementParser {
|
|
constructor(options, input) {
|
|
options = getOptions(options);
|
|
super(options, input);
|
|
const ScopeHandler = this.getScopeHandler();
|
|
this.options = options;
|
|
this.inModule = this.options.sourceType === "module";
|
|
this.scope = new ScopeHandler(this.raise.bind(this), this.inModule);
|
|
this.prodParam = new ProductionParameterHandler();
|
|
this.classScope = new ClassScopeHandler(this.raise.bind(this));
|
|
this.plugins = pluginsMap(this.options.plugins);
|
|
this.filename = options.sourceFilename;
|
|
}
|
|
|
|
getScopeHandler() {
|
|
return ScopeHandler;
|
|
}
|
|
|
|
parse() {
|
|
let paramFlags = PARAM;
|
|
|
|
if (this.hasPlugin("topLevelAwait") && this.inModule) {
|
|
paramFlags |= PARAM_AWAIT;
|
|
}
|
|
|
|
this.scope.enter(SCOPE_PROGRAM);
|
|
this.prodParam.enter(paramFlags);
|
|
const file = this.startNode();
|
|
const program = this.startNode();
|
|
this.nextToken();
|
|
file.errors = null;
|
|
this.parseTopLevel(file, program);
|
|
file.errors = this.state.errors;
|
|
return file;
|
|
}
|
|
|
|
}
|
|
|
|
function pluginsMap(plugins) {
|
|
const pluginMap = new Map();
|
|
|
|
for (let _i = 0; _i < plugins.length; _i++) {
|
|
const plugin = plugins[_i];
|
|
const [name, options] = Array.isArray(plugin) ? plugin : [plugin, {}];
|
|
if (!pluginMap.has(name)) pluginMap.set(name, options || {});
|
|
}
|
|
|
|
return pluginMap;
|
|
}
|
|
|
|
function parse(input, options) {
|
|
var _options;
|
|
|
|
if (((_options = options) == null ? void 0 : _options.sourceType) === "unambiguous") {
|
|
options = Object.assign({}, options);
|
|
|
|
try {
|
|
options.sourceType = "module";
|
|
const parser = getParser(options, input);
|
|
const ast = parser.parse();
|
|
|
|
if (parser.sawUnambiguousESM) {
|
|
return ast;
|
|
}
|
|
|
|
if (parser.ambiguousScriptDifferentAst) {
|
|
try {
|
|
options.sourceType = "script";
|
|
return getParser(options, input).parse();
|
|
} catch (_unused) {}
|
|
} else {
|
|
ast.program.sourceType = "script";
|
|
}
|
|
|
|
return ast;
|
|
} catch (moduleError) {
|
|
try {
|
|
options.sourceType = "script";
|
|
return getParser(options, input).parse();
|
|
} catch (_unused2) {}
|
|
|
|
throw moduleError;
|
|
}
|
|
} else {
|
|
return getParser(options, input).parse();
|
|
}
|
|
}
|
|
function parseExpression(input, options) {
|
|
const parser = getParser(options, input);
|
|
|
|
if (parser.options.strictMode) {
|
|
parser.state.strict = true;
|
|
}
|
|
|
|
return parser.getExpression();
|
|
}
|
|
|
|
function getParser(options, input) {
|
|
let cls = Parser;
|
|
|
|
if (options == null ? void 0 : options.plugins) {
|
|
validatePlugins(options.plugins);
|
|
cls = getParserClass(options.plugins);
|
|
}
|
|
|
|
return new cls(options, input);
|
|
}
|
|
|
|
const parserClassCache = {};
|
|
|
|
function getParserClass(pluginsFromOptions) {
|
|
const pluginList = mixinPluginNames.filter(name => hasPlugin(pluginsFromOptions, name));
|
|
const key = pluginList.join("/");
|
|
let cls = parserClassCache[key];
|
|
|
|
if (!cls) {
|
|
cls = Parser;
|
|
|
|
for (let _i = 0; _i < pluginList.length; _i++) {
|
|
const plugin = pluginList[_i];
|
|
cls = mixinPlugins[plugin](cls);
|
|
}
|
|
|
|
parserClassCache[key] = cls;
|
|
}
|
|
|
|
return cls;
|
|
}
|
|
|
|
exports.parse = parse;
|
|
exports.parseExpression = parseExpression;
|
|
exports.tokTypes = types;
|
|
//# sourceMappingURL=index.js.map
|