webpack/lib/wasm-async/AsyncWebAssemblyGenerator.js

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports 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 Generator = require("../Generator");

/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../Generator").GenerateContext} GenerateContext */
/** @typedef {import("../NormalModule")} NormalModule */

const TYPES = new Set(["webassembly"]);

/**
 * @typedef {object} AsyncWebAssemblyGeneratorOptions
 * @property {boolean} [mangleImports] mangle imports
 */

class AsyncWebAssemblyGenerator extends Generator {
	/**
	 * @param {AsyncWebAssemblyGeneratorOptions} options options
	 */
	constructor(options) {
		super();
		this.options = options;
	}

	/**
	 * @param {NormalModule} module fresh module
	 * @returns {Set<string>} available types (do not mutate)
	 */
	getTypes(module) {
		return TYPES;
	}

	/**
	 * @param {NormalModule} module the module
	 * @param {string=} type source type
	 * @returns {number} estimate size of the module
	 */
	getSize(module, type) {
		const originalSource = module.originalSource();
		if (!originalSource) {
			return 0;
		}
		return originalSource.size();
	}

	/**
	 * @param {NormalModule} module module for which the code should be generated
	 * @param {GenerateContext} generateContext context for generate
	 * @returns {Source} generated code
	 */
	generate(module, generateContext) {
		return /** @type {Source} */ (module.originalSource());
	}
}

module.exports = AsyncWebAssemblyGenerator;