mirror of https://github.com/webpack/webpack.git
77 lines
1.9 KiB
JavaScript
77 lines
1.9 KiB
JavaScript
/*
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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 RuntimeGlobals = require("../RuntimeGlobals");
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const Template = require("../Template");
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const AsyncWasmChunkLoadingRuntimeModule = require("../wasm-async/AsyncWasmChunkLoadingRuntimeModule");
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/** @typedef {import("../Compiler")} Compiler */
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class ReadFileCompileAsyncWasmPlugin {
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/**
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* @param {Compiler} compiler the compiler instance
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* @returns {void}
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*/
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apply(compiler) {
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compiler.hooks.thisCompilation.tap(
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"ReadFileCompileAsyncWasmPlugin",
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compilation => {
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const generateLoadBinaryCode = path =>
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Template.asString([
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"new Promise(function (resolve, reject) {",
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Template.indent([
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"var { readFile } = require('fs');",
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"var { join } = require('path');",
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"",
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"try {",
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Template.indent([
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`readFile(join(__dirname, ${path}), function(err, buffer){`,
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Template.indent([
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"if (err) return reject(err);",
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"",
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"// Fake fetch response",
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"resolve({",
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Template.indent([
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"arrayBuffer() { return Promise.resolve(buffer); }"
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]),
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"});"
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]),
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"});"
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]),
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"} catch (err) { reject(err); }"
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]),
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"})"
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]);
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compilation.hooks.runtimeRequirementInTree
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.for(RuntimeGlobals.instantiateWasm)
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.tap("ReadFileCompileAsyncWasmPlugin", (chunk, set) => {
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const chunkGraph = compilation.chunkGraph;
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if (
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!chunkGraph.hasModuleInGraph(
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chunk,
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m => m.type === "webassembly/async"
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)
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) {
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return;
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}
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set.add(RuntimeGlobals.publicPath);
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compilation.addRuntimeModule(
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chunk,
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new AsyncWasmChunkLoadingRuntimeModule({
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generateLoadBinaryCode,
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supportsStreaming: false
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})
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);
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});
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}
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);
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}
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}
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module.exports = ReadFileCompileAsyncWasmPlugin;
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