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68 lines
2.0 KiB
68 lines
2.0 KiB
4 years ago
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const WebpackError = require("./WebpackError");
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/** @typedef {import("./Module")} Module */
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class ModuleParseError extends WebpackError {
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/**
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* @param {Module} module the errored module
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* @param {string} source source code
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* @param {Error&any} err the parse error
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* @param {string[]} loaders the loaders used
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*/
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constructor(module, source, err, loaders) {
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let message = "Module parse failed: " + err.message;
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let loc = undefined;
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if (loaders.length >= 1) {
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message += `\nFile was processed with these loaders:${loaders
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.map(loader => `\n * ${loader}`)
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.join("")}`;
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message +=
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"\nYou may need an additional loader to handle the result of these loaders.";
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} else {
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message +=
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"\nYou may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders";
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}
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if (
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err.loc &&
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typeof err.loc === "object" &&
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typeof err.loc.line === "number"
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) {
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var lineNumber = err.loc.line;
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if (/[\0\u0001\u0002\u0003\u0004\u0005\u0006\u0007]/.test(source)) {
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// binary file
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message += "\n(Source code omitted for this binary file)";
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} else {
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const sourceLines = source.split(/\r?\n/);
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const start = Math.max(0, lineNumber - 3);
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const linesBefore = sourceLines.slice(start, lineNumber - 1);
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const theLine = sourceLines[lineNumber - 1];
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const linesAfter = sourceLines.slice(lineNumber, lineNumber + 2);
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message +=
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linesBefore.map(l => `\n| ${l}`).join("") +
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`\n> ${theLine}` +
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linesAfter.map(l => `\n| ${l}`).join("");
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}
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loc = err.loc;
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} else {
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message += "\n" + err.stack;
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}
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super(message);
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this.name = "ModuleParseError";
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this.module = module;
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this.loc = loc;
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this.error = err;
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Error.captureStackTrace(this, this.constructor);
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}
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}
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module.exports = ModuleParseError;
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