119 lines
3.3 KiB
JavaScript
119 lines
3.3 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const { WEBASSEMBLY_MODULE_TYPE_ASYNC } = require("../ModuleTypeConstants");
|
|
const RuntimeGlobals = require("../RuntimeGlobals");
|
|
const Template = require("../Template");
|
|
const AsyncWasmLoadingRuntimeModule = require("../wasm-async/AsyncWasmLoadingRuntimeModule");
|
|
|
|
/** @typedef {import("../Chunk")} Chunk */
|
|
/** @typedef {import("../Compiler")} Compiler */
|
|
|
|
class ReadFileCompileAsyncWasmPlugin {
|
|
constructor({ type = "async-node", import: useImport = false } = {}) {
|
|
this._type = type;
|
|
this._import = useImport;
|
|
}
|
|
|
|
/**
|
|
* Apply the plugin
|
|
* @param {Compiler} compiler the compiler instance
|
|
* @returns {void}
|
|
*/
|
|
apply(compiler) {
|
|
compiler.hooks.thisCompilation.tap(
|
|
"ReadFileCompileAsyncWasmPlugin",
|
|
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 === this._type;
|
|
};
|
|
const { importMetaName } = compilation.outputOptions;
|
|
/**
|
|
* @type {(path: string) => string}
|
|
*/
|
|
const generateLoadBinaryCode = this._import
|
|
? path =>
|
|
Template.asString([
|
|
"Promise.all([import('fs'), import('url')]).then(([{ readFile }, { URL }]) => new Promise((resolve, reject) => {",
|
|
Template.indent([
|
|
`readFile(new URL(${path}, ${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([
|
|
"try {",
|
|
Template.indent([
|
|
"var { readFile } = require('fs');",
|
|
"var { join } = require('path');",
|
|
"",
|
|
`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.instantiateWasm)
|
|
.tap("ReadFileCompileAsyncWasmPlugin", (chunk, set) => {
|
|
if (!isEnabledForChunk(chunk)) return;
|
|
const chunkGraph = compilation.chunkGraph;
|
|
if (
|
|
!chunkGraph.hasModuleInGraph(
|
|
chunk,
|
|
m => m.type === WEBASSEMBLY_MODULE_TYPE_ASYNC
|
|
)
|
|
) {
|
|
return;
|
|
}
|
|
set.add(RuntimeGlobals.publicPath);
|
|
compilation.addRuntimeModule(
|
|
chunk,
|
|
new AsyncWasmLoadingRuntimeModule({
|
|
generateLoadBinaryCode,
|
|
supportsStreaming: false
|
|
})
|
|
);
|
|
});
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
module.exports = ReadFileCompileAsyncWasmPlugin;
|