webpack/lib/dependencies/WebAssemblyImportDependency.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
"use strict";

const DependencyReference = require("./DependencyReference");
const ModuleDependency = require("./ModuleDependency");
const UnsupportedWebAssemblyFeatureError = require("../wasm/UnsupportedWebAssemblyFeatureError");

/** @typedef {import("@webassemblyjs/ast").ModuleImportDescription} ModuleImportDescription */

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;
	}

	getReference() {
		if (!this.module) return null;
		return new DependencyReference(this.module, [this.name], false);
	}

	getErrors() {
		if (
			this.onlyDirectImport &&
			this.module &&
			!this.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`
				)
			];
		}
	}

	get type() {
		return "wasm import";
	}
}

module.exports = WebAssemblyImportDependency;