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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const Template = require("./Template");
/** @typedef {import("./Module")} Module */
module.exports = class RuntimeTemplate {
constructor(outputOptions, requestShortener) {
this.outputOptions = outputOptions || {};
this.requestShortener = requestShortener;
}
/**
* Add a comment
* @param {object} options Information content of the comment
* @param {string=} options.request request string used originally
* @param {string=} options.chunkName name of the chunk referenced
* @param {string=} options.chunkReason reason information of the chunk
* @param {string=} options.message additional message
* @param {string=} options.exportName name of the export
* @returns {string} comment
*/
comment({ request, chunkName, chunkReason, message, exportName }) {
let content;
if (this.outputOptions.pathinfo) {
content = [message, request, chunkName, chunkReason]
.filter(Boolean)
.map(item => this.requestShortener.shorten(item))
.join(" | ");
} else {
content = [message, chunkName, chunkReason]
.filter(Boolean)
.map(item => this.requestShortener.shorten(item))
.join(" | ");
}
if (!content) return "";
if (this.outputOptions.pathinfo) {
return Template.toComment(content) + " ";
} else {
return Template.toNormalComment(content) + " ";
}
}
throwMissingModuleErrorFunction({ request }) {
const err = `Cannot find module '${request}'`;
return `function webpackMissingModule() { var e = new Error(${JSON.stringify(
err
)}); e.code = 'MODULE_NOT_FOUND'; throw e; }`;
}
missingModule({ request }) {
return `!(${this.throwMissingModuleErrorFunction({ request })}())`;
}
missingModuleStatement({ request }) {
return `${this.missingModule({ request })};\n`;
}
missingModulePromise({ request }) {
return `Promise.resolve().then(${this.throwMissingModuleErrorFunction({
request
})})`;
}
moduleId({ module, request }) {
if (!module) {
return this.missingModule({
request
});
}
if (module.id === null) {
throw new Error(
`RuntimeTemplate.moduleId(): Module ${module.identifier()} has no id. This should not happen.`
);
}
return `${this.comment({ request })}${JSON.stringify(module.id)}`;
}
moduleRaw({ module, request }) {
if (!module) {
return this.missingModule({
request
});
}
return `__webpack_require__(${this.moduleId({ module, request })})`;
}
moduleExports({ module, request }) {
return this.moduleRaw({
module,
request
});
}
moduleNamespace({ module, request, strict }) {
if (!module) {
return this.missingModule({
request
});
}
const moduleId = this.moduleId({
module,
request
});
const exportsType = module.buildMeta && module.buildMeta.exportsType;
if (exportsType === "namespace") {
const rawModule = this.moduleRaw({
module,
request
});
return rawModule;
} else if (exportsType === "named") {
return `__webpack_require__.t(${moduleId}, 3)`;
} else if (strict) {
return `__webpack_require__.t(${moduleId}, 1)`;
} else {
return `__webpack_require__.t(${moduleId}, 7)`;
}
}
moduleNamespacePromise({ block, module, request, message, strict, weak }) {
if (!module) {
return this.missingModulePromise({
request
});
}
if (module.id === null) {
throw new Error(
`RuntimeTemplate.moduleNamespacePromise(): Module ${module.identifier()} has no id. This should not happen.`
);
}
const promise = this.blockPromise({
block,
message
});
let getModuleFunction;
let idExpr = JSON.stringify(module.id);
const comment = this.comment({
request
});
let header = "";
if (weak) {
if (idExpr.length > 8) {
// 'var x="nnnnnn";x,"+x+",x' vs '"nnnnnn",nnnnnn,"nnnnnn"'
header += `var id = ${idExpr}; `;
idExpr = "id";
}
header += `if(!__webpack_require__.m[${idExpr}]) { var e = new Error("Module '" + ${idExpr} + "' is not available (weak dependency)"); e.code = 'MODULE_NOT_FOUND'; throw e; } `;
}
const moduleId = this.moduleId({
module,
request
});
const exportsType = module.buildMeta && module.buildMeta.exportsType;
if (exportsType === "namespace") {
if (header) {
const rawModule = this.moduleRaw({
module,
request
});
getModuleFunction = `function() { ${header}return ${rawModule}; }`;
} else {
getModuleFunction = `__webpack_require__.bind(null, ${comment}${idExpr})`;
}
} else if (exportsType === "named") {
if (header) {
getModuleFunction = `function() { ${header}return __webpack_require__.t(${moduleId}, 3); }`;
} else {
getModuleFunction = `__webpack_require__.t.bind(null, ${comment}${idExpr}, 3)`;
}
} else if (strict) {
if (header) {
getModuleFunction = `function() { ${header}return __webpack_require__.t(${moduleId}, 1); }`;
} else {
getModuleFunction = `__webpack_require__.t.bind(null, ${comment}${idExpr}, 1)`;
}
} else {
if (header) {
getModuleFunction = `function() { ${header}return __webpack_require__.t(${moduleId}, 7); }`;
} else {
getModuleFunction = `__webpack_require__.t.bind(null, ${comment}${idExpr}, 7)`;
}
}
return `${promise || "Promise.resolve()"}.then(${getModuleFunction})`;
}
/**
*
* @param {Object} options options object
* @param {boolean=} options.update whether a new variable should be created or the existing one updated
* @param {Module} options.module the module
* @param {string} options.request the request that should be printed as comment
* @param {string} options.importVar name of the import variable
* @param {Module} options.originModule module in which the statement is emitted
* @returns {string} the import statement
*/
importStatement({ update, module, request, importVar, originModule }) {
if (!module) {
return this.missingModuleStatement({
request
});
}
const moduleId = this.moduleId({
module,
request
});
const optDeclaration = update ? "" : "var ";
const exportsType = module.buildMeta && module.buildMeta.exportsType;
let content = `/* harmony import */ ${optDeclaration}${importVar} = __webpack_require__(${moduleId});\n`;
if (!exportsType && !originModule.buildMeta.strictHarmonyModule) {
content += `/* harmony import */ ${optDeclaration}${importVar}_default = /*#__PURE__*/__webpack_require__.n(${importVar});\n`;
}
if (exportsType === "named") {
if (Array.isArray(module.buildMeta.providedExports)) {
content += `${optDeclaration}${importVar}_namespace = /*#__PURE__*/__webpack_require__.t(${moduleId}, 1);\n`;
} else {
content += `${optDeclaration}${importVar}_namespace = /*#__PURE__*/__webpack_require__.t(${moduleId});\n`;
}
}
return content;
}
exportFromImport({
module,
request,
exportName,
originModule,
asiSafe,
isCall,
callContext,
importVar
}) {
if (!module) {
return this.missingModule({
request
});
}
const exportsType = module.buildMeta && module.buildMeta.exportsType;
if (!exportsType) {
if (exportName === "default") {
if (!originModule.buildMeta.strictHarmonyModule) {
if (isCall) {
return `${importVar}_default()`;
} else if (asiSafe) {
return `(${importVar}_default())`;
} else {
return `${importVar}_default.a`;
}
} else {
return importVar;
}
} else if (originModule.buildMeta.strictHarmonyModule) {
if (exportName) {
return "/* non-default import from non-esm module */undefined";
} else {
return `/*#__PURE__*/__webpack_require__.t(${importVar})`;
}
}
}
if (exportsType === "named") {
if (exportName === "default") {
return importVar;
} else if (!exportName) {
return `${importVar}_namespace`;
}
}
if (exportName) {
const used = module.isUsed(exportName);
if (!used) {
const comment = Template.toNormalComment(`unused export ${exportName}`);
return `${comment} undefined`;
}
const comment =
used !== exportName ? Template.toNormalComment(exportName) + " " : "";
const access = `${importVar}[${comment}${JSON.stringify(used)}]`;
if (isCall) {
if (callContext === false && asiSafe) {
return `(0,${access})`;
} else if (callContext === false) {
return `Object(${access})`;
}
}
return access;
} else {
return importVar;
}
}
blockPromise({ block, message }) {
if (!block || !block.chunkGroup || block.chunkGroup.chunks.length === 0) {
const comment = this.comment({
message
});
return `Promise.resolve(${comment.trim()})`;
}
const chunks = block.chunkGroup.chunks.filter(
chunk => !chunk.hasRuntime() && chunk.id !== null
);
const comment = this.comment({
message,
chunkName: block.chunkName,
chunkReason: block.chunkReason
});
if (chunks.length === 1) {
const chunkId = JSON.stringify(chunks[0].id);
return `__webpack_require__.e(${comment}${chunkId})`;
} else if (chunks.length > 0) {
const requireChunkId = chunk =>
`__webpack_require__.e(${JSON.stringify(chunk.id)})`;
return `Promise.all(${comment.trim()}[${chunks
.map(requireChunkId)
.join(", ")}])`;
} else {
return `Promise.resolve(${comment.trim()})`;
}
}
onError() {
return "__webpack_require__.oe";
}
defineEsModuleFlagStatement({ exportsArgument }) {
return `__webpack_require__.r(${exportsArgument});\n`;
}
};