/*
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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 UnsupportedWebAssemblyFeatureError = require("./UnsupportedWebAssemblyFeatureError");
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class WasmFinalizeExportsPlugin {
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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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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 reason of module.reasons) {
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// 2. is referenced by a non-WebAssembly module
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if (reason.module.type.startsWith("webassembly") === false) {
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const ref = compilation.getDependencyReference(
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reason.module,
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reason.dependency
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);
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if (!ref) continue;
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const importedNames = ref.importedNames;
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if (Array.isArray(importedNames)) {
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importedNames.forEach(name => {
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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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/** @type {any} */
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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`
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);
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error.module = module;
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error.origin = reason.module;
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error.originLoc = reason.dependency.loc;
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error.dependencies = [reason.dependency];
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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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}
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module.exports = WasmFinalizeExportsPlugin;
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