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parttimejob/node_modules/webpack/lib/web/FetchCompileWasmPlugin.js

89 lines
2.3 KiB

/*
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 WasmChunkLoadingRuntimeModule = require("../wasm-sync/WasmChunkLoadingRuntimeModule");
/** @typedef {import("../Chunk")} Chunk */
/** @typedef {import("../Compiler")} Compiler */
// TODO webpack 6 remove
const PLUGIN_NAME = "FetchCompileWasmPlugin";
/**
* @typedef {object} FetchCompileWasmPluginOptions
* @property {boolean} [mangleImports] mangle imports
*/
class FetchCompileWasmPlugin {
/**
* @param {FetchCompileWasmPluginOptions} [options] options
*/
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, if 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 === "fetch";
};
/**
* @param {string} path path to the wasm file
* @returns {string} code to load the wasm file
*/
const generateLoadBinaryCode = path =>
`fetch(${RuntimeGlobals.publicPath} + ${path})`;
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.ensureChunkHandlers)
.tap(PLUGIN_NAME, (chunk, set) => {
if (!isEnabledForChunk(chunk)) return;
const chunkGraph = compilation.chunkGraph;
if (
!chunkGraph.hasModuleInGraph(
chunk,
m => m.type === WEBASSEMBLY_MODULE_TYPE_SYNC
)
) {
return;
}
set.add(RuntimeGlobals.moduleCache);
set.add(RuntimeGlobals.publicPath);
compilation.addRuntimeModule(
chunk,
new WasmChunkLoadingRuntimeModule({
generateLoadBinaryCode,
supportsStreaming: true,
mangleImports: this.options.mangleImports,
runtimeRequirements: set
})
);
});
});
}
}
module.exports = FetchCompileWasmPlugin;