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94 lines
2.8 KiB
JavaScript
94 lines
2.8 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 formatLocation = require("../formatLocation");
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const UnsupportedWebAssemblyFeatureError = require("./UnsupportedWebAssemblyFeatureError");
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/** @typedef {import("../Compiler")} Compiler */
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/** @typedef {import("../Dependency")} Dependency */
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/** @typedef {import("../Module")} Module */
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/** @typedef {import("../Module").BuildMeta} BuildMeta */
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class WasmFinalizeExportsPlugin {
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/**
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* Apply the plugin
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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.compilation.tap("WasmFinalizeExportsPlugin", compilation => {
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compilation.hooks.finishModules.tap(
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"WasmFinalizeExportsPlugin",
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modules => {
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for (const module of modules) {
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// 1. if a WebAssembly module
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if (module.type.startsWith("webassembly") === true) {
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const jsIncompatibleExports =
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/** @type {BuildMeta} */
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(module.buildMeta).jsIncompatibleExports;
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if (jsIncompatibleExports === undefined) {
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continue;
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}
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for (const connection of compilation.moduleGraph.getIncomingConnections(
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module
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)) {
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// 2. is active and referenced by a non-WebAssembly module
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if (
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connection.isTargetActive(undefined) &&
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/** @type {Module} */
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(connection.originModule).type.startsWith("webassembly") ===
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false
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) {
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const referencedExports =
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compilation.getDependencyReferencedExports(
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/** @type {Dependency} */ (connection.dependency),
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undefined
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);
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for (const info of referencedExports) {
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const names = Array.isArray(info) ? info : info.name;
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if (names.length === 0) continue;
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const name = names[0];
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if (typeof name === "object") continue;
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// 3. and uses a func with an incompatible JS signature
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if (
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Object.prototype.hasOwnProperty.call(
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jsIncompatibleExports,
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name
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)
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) {
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// 4. error
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const error = new UnsupportedWebAssemblyFeatureError(
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`Export "${name}" with ${jsIncompatibleExports[name]} can only be used for direct wasm to wasm dependencies\n` +
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`It's used from ${
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/** @type {Module} */
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(connection.originModule).readableIdentifier(
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compilation.requestShortener
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)
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} at ${formatLocation(
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/** @type {Dependency} */ (connection.dependency)
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.loc
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)}.`
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);
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error.module = module;
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compilation.errors.push(error);
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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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);
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});
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}
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}
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module.exports = WasmFinalizeExportsPlugin;
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