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- /*
- MIT License http://www.opensource.org/licenses/mit-license.php
- Author Tobias Koppers @sokra
- */
- "use strict";
- const WebpackError = require("./WebpackError");
- const makeSerializable = require("./util/makeSerializable");
- const WASM_HEADER = Buffer.from([0x00, 0x61, 0x73, 0x6d]);
- class ModuleParseError extends WebpackError {
- /**
- * @param {string | Buffer} source source code
- * @param {Error&any} err the parse error
- * @param {string[]} loaders the loaders used
- * @param {string} type module type
- */
- constructor(source, err, loaders, type) {
- let message = "Module parse failed: " + (err && err.message);
- let loc = undefined;
- if (
- ((Buffer.isBuffer(source) && source.slice(0, 4).equals(WASM_HEADER)) ||
- (typeof source === "string" && /^\0asm/.test(source))) &&
- !type.startsWith("webassembly")
- ) {
- message +=
- "\nThe module seem to be a WebAssembly module, but module is not flagged as WebAssembly module for webpack.";
- message +=
- "\nBREAKING CHANGE: Since webpack 5 WebAssembly is not enabled by default and flagged as experimental feature.";
- message +=
- "\nYou need to enable one of the WebAssembly experiments via 'experiments.asyncWebAssembly: true' (based on async modules) or 'experiments.syncWebAssembly: true' (like webpack 4, deprecated).";
- message +=
- "\nFor files that transpile to WebAssembly, make sure to set the module type in the 'module.rules' section of the config (e. g. 'type: \"webassembly/async\"').";
- } else if (!loaders) {
- message +=
- "\nYou may need an appropriate loader to handle this file type.";
- } else if (loaders.length >= 1) {
- message += `\nFile was processed with these loaders:${loaders
- .map(loader => `\n * ${loader}`)
- .join("")}`;
- message +=
- "\nYou may need an additional loader to handle the result of these loaders.";
- } else {
- message +=
- "\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";
- }
- if (
- err &&
- err.loc &&
- typeof err.loc === "object" &&
- typeof err.loc.line === "number"
- ) {
- var lineNumber = err.loc.line;
- if (
- Buffer.isBuffer(source) ||
- /[\0\u0001\u0002\u0003\u0004\u0005\u0006\u0007]/.test(source)
- ) {
- // binary file
- message += "\n(Source code omitted for this binary file)";
- } else {
- const sourceLines = source.split(/\r?\n/);
- const start = Math.max(0, lineNumber - 3);
- const linesBefore = sourceLines.slice(start, lineNumber - 1);
- const theLine = sourceLines[lineNumber - 1];
- const linesAfter = sourceLines.slice(lineNumber, lineNumber + 2);
- message +=
- linesBefore.map(l => `\n| ${l}`).join("") +
- `\n> ${theLine}` +
- linesAfter.map(l => `\n| ${l}`).join("");
- }
- loc = { start: err.loc };
- } else if (err && err.stack) {
- message += "\n" + err.stack;
- }
- super(message);
- this.name = "ModuleParseError";
- this.loc = loc;
- this.error = err;
- }
- serialize(context) {
- const { write } = context;
- write(this.error);
- super.serialize(context);
- }
- deserialize(context) {
- const { read } = context;
- this.error = read();
- super.deserialize(context);
- }
- }
- makeSerializable(ModuleParseError, "webpack/lib/ModuleParseError");
- module.exports = ModuleParseError;
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