webpack/lib/dependencies/UnsupportedDependency.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 makeSerializable = require("../util/makeSerializable");
const NullDependency = require("./NullDependency");

/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
/** @typedef {import("../Dependency")} Dependency */
/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
/** @typedef {import("../javascript/JavascriptParser").Range} Range */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */

class UnsupportedDependency extends NullDependency {
	/**
	 * Creates an instance of UnsupportedDependency.
	 * @param {string} request the request string
	 * @param {Range} range location in source code
	 */
	constructor(request, range) {
		super();

		this.request = request;
		this.range = range;
	}

	/**
	 * Serializes this instance into the provided serializer context.
	 * @param {ObjectSerializerContext} context context
	 */
	serialize(context) {
		const { write } = context;

		write(this.request);
		write(this.range);

		super.serialize(context);
	}

	/**
	 * Restores this instance from the provided deserializer context.
	 * @param {ObjectDeserializerContext} context context
	 */
	deserialize(context) {
		const { read } = context;

		this.request = read();
		this.range = read();

		super.deserialize(context);
	}
}

makeSerializable(
	UnsupportedDependency,
	"webpack/lib/dependencies/UnsupportedDependency"
);

UnsupportedDependency.Template = class UnsupportedDependencyTemplate extends (
	NullDependency.Template
) {
	/**
	 * Applies the plugin by registering its hooks on the compiler.
	 * @param {Dependency} dependency the dependency for which the template should be applied
	 * @param {ReplaceSource} source the current replace source which can be modified
	 * @param {DependencyTemplateContext} templateContext the context object
	 * @returns {void}
	 */
	apply(dependency, source, { runtimeTemplate }) {
		const dep = /** @type {UnsupportedDependency} */ (dependency);

		source.replace(
			dep.range[0],
			dep.range[1],
			runtimeTemplate.missingModule({
				request: dep.request
			})
		);
	}
};

module.exports = UnsupportedDependency;