mirror of https://github.com/webpack/webpack.git
129 lines
3.7 KiB
JavaScript
129 lines
3.7 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const { WEBASSEMBLY_MODULE_TYPE_SYNC } = require("../ModuleTypeConstants");
|
|
const RuntimeGlobals = require("../RuntimeGlobals");
|
|
const Template = require("../Template");
|
|
const WasmChunkLoadingRuntimeModule = require("../wasm-sync/WasmChunkLoadingRuntimeModule");
|
|
|
|
/** @typedef {import("../Chunk")} Chunk */
|
|
/** @typedef {import("../Compiler")} Compiler */
|
|
|
|
/**
|
|
* @typedef {object} ReadFileCompileWasmPluginOptions
|
|
* @property {boolean=} mangleImports mangle imports
|
|
* @property {boolean=} import use import?
|
|
*/
|
|
|
|
// TODO webpack 6 remove
|
|
|
|
const PLUGIN_NAME = "ReadFileCompileWasmPlugin";
|
|
|
|
class ReadFileCompileWasmPlugin {
|
|
/**
|
|
* @param {ReadFileCompileWasmPluginOptions=} options options object
|
|
*/
|
|
constructor(options = {}) {
|
|
this.options = options;
|
|
}
|
|
|
|
/**
|
|
* Apply the plugin
|
|
* @param {Compiler} compiler the compiler instance
|
|
* @returns {void}
|
|
*/
|
|
apply(compiler) {
|
|
compiler.hooks.thisCompilation.tap(PLUGIN_NAME, (compilation) => {
|
|
const globalWasmLoading = compilation.outputOptions.wasmLoading;
|
|
/**
|
|
* @param {Chunk} chunk chunk
|
|
* @returns {boolean} true, when wasm loading is enabled for the chunk
|
|
*/
|
|
const isEnabledForChunk = (chunk) => {
|
|
const options = chunk.getEntryOptions();
|
|
const wasmLoading =
|
|
options && options.wasmLoading !== undefined
|
|
? options.wasmLoading
|
|
: globalWasmLoading;
|
|
return wasmLoading === "async-node";
|
|
};
|
|
|
|
/**
|
|
* @type {(path: string) => string} callback to generate code to load the wasm file
|
|
*/
|
|
const generateLoadBinaryCode = this.options.import
|
|
? (path) =>
|
|
Template.asString([
|
|
"Promise.all([import('fs'), import('url')]).then(([{ readFile }, { URL }]) => new Promise((resolve, reject) => {",
|
|
Template.indent([
|
|
`readFile(new URL(${path}, ${compilation.outputOptions.importMetaName}.url), (err, buffer) => {`,
|
|
Template.indent([
|
|
"if (err) return reject(err);",
|
|
"",
|
|
"// Fake fetch response",
|
|
"resolve({",
|
|
Template.indent(["arrayBuffer() { return buffer; }"]),
|
|
"});"
|
|
]),
|
|
"});"
|
|
]),
|
|
"}))"
|
|
])
|
|
: (path) =>
|
|
Template.asString([
|
|
"new Promise(function (resolve, reject) {",
|
|
Template.indent([
|
|
`var { readFile } = require(${compilation.runtimeTemplate.renderNodePrefixForCoreModule("fs")});`,
|
|
`var { join } = require(${compilation.runtimeTemplate.renderNodePrefixForCoreModule("path")});`,
|
|
"",
|
|
"try {",
|
|
Template.indent([
|
|
`readFile(join(__dirname, ${path}), function(err, buffer){`,
|
|
Template.indent([
|
|
"if (err) return reject(err);",
|
|
"",
|
|
"// Fake fetch response",
|
|
"resolve({",
|
|
Template.indent(["arrayBuffer() { return buffer; }"]),
|
|
"});"
|
|
]),
|
|
"});"
|
|
]),
|
|
"} catch (err) { reject(err); }"
|
|
]),
|
|
"})"
|
|
]);
|
|
|
|
compilation.hooks.runtimeRequirementInTree
|
|
.for(RuntimeGlobals.ensureChunkHandlers)
|
|
.tap(PLUGIN_NAME, (chunk, set, { chunkGraph }) => {
|
|
if (!isEnabledForChunk(chunk)) return;
|
|
if (
|
|
!chunkGraph.hasModuleInGraph(
|
|
chunk,
|
|
(m) => m.type === WEBASSEMBLY_MODULE_TYPE_SYNC
|
|
)
|
|
) {
|
|
return;
|
|
}
|
|
set.add(RuntimeGlobals.moduleCache);
|
|
compilation.addRuntimeModule(
|
|
chunk,
|
|
new WasmChunkLoadingRuntimeModule({
|
|
generateLoadBinaryCode,
|
|
supportsStreaming: false,
|
|
mangleImports: this.options.mangleImports,
|
|
runtimeRequirements: set
|
|
})
|
|
);
|
|
});
|
|
});
|
|
}
|
|
}
|
|
|
|
module.exports = ReadFileCompileWasmPlugin;
|