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WebAssemblyImportDependency.js
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Thu, Feb 13, 13:36

WebAssemblyImportDependency.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const makeSerializable = require("../util/makeSerializable");
const UnsupportedWebAssemblyFeatureError = require("../wasm-sync/UnsupportedWebAssemblyFeatureError");
const ModuleDependency = require("./ModuleDependency");
/** @typedef {import("@webassemblyjs/ast").ModuleImportDescription} ModuleImportDescription */
/** @typedef {import("../Dependency").ReferencedExport} ReferencedExport */
/** @typedef {import("../ModuleGraph")} ModuleGraph */
/** @typedef {import("../WebpackError")} WebpackError */
/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
class WebAssemblyImportDependency extends ModuleDependency {
/**
* @param {string} request the request
* @param {string} name the imported name
* @param {ModuleImportDescription} description the WASM ast node
* @param {false | string} onlyDirectImport if only direct imports are allowed
*/
constructor(request, name, description, onlyDirectImport) {
super(request);
/** @type {string} */
this.name = name;
/** @type {ModuleImportDescription} */
this.description = description;
/** @type {false | string} */
this.onlyDirectImport = onlyDirectImport;
}
get type() {
return "wasm import";
}
get category() {
return "wasm";
}
/**
* Returns list of exports referenced by this dependency
* @param {ModuleGraph} moduleGraph module graph
* @param {RuntimeSpec} runtime the runtime for which the module is analysed
* @returns {(string[] | ReferencedExport)[]} referenced exports
*/
getReferencedExports(moduleGraph, runtime) {
return [[this.name]];
}
/**
* Returns errors
* @param {ModuleGraph} moduleGraph module graph
* @returns {WebpackError[]} errors
*/
getErrors(moduleGraph) {
const module = moduleGraph.getModule(this);
if (
this.onlyDirectImport &&
module &&
!module.type.startsWith("webassembly")
) {
return [
new UnsupportedWebAssemblyFeatureError(
`Import "${this.name}" from "${this.request}" with ${this.onlyDirectImport} can only be used for direct wasm to wasm dependencies`
)
];
}
}
serialize(context) {
const { write } = context;
write(this.name);
write(this.description);
write(this.onlyDirectImport);
super.serialize(context);
}
deserialize(context) {
const { read } = context;
this.name = read();
this.description = read();
this.onlyDirectImport = read();
super.deserialize(context);
}
}
makeSerializable(
WebAssemblyImportDependency,
"webpack/lib/dependencies/WebAssemblyImportDependency"
);
module.exports = WebAssemblyImportDependency;

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