lib/dependencies/HarmonyExportHeaderDependency.js - main - githubmirror/webpack

lib/dependencies/HarmonyExportHeaderDependency.js
80 строк3 KB
Alexander Akait
Type serializer read/write contexts with positional tuples (#21201)
18 июн 2026, 00:07
18 июн 2026, 00:07907d23f
/*
	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<[Range | false, Range]>} ObjectDeserializerContext */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext<[Range | false, Range]>} ObjectSerializerContext */

class HarmonyExportHeaderDependency extends NullDependency {
	/**
	 * Creates an instance of HarmonyExportHeaderDependency.
	 * @param {Range | false} range range
	 * @param {Range} rangeStatement range statement
	 */
	constructor(range, rangeStatement) {
		super();
		this.range = range;
		this.rangeStatement = rangeStatement;
	}

	get type() {
		return "harmony export header";
	}

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

	/**
	 * Restores this instance from the provided deserializer context.
	 * @param {ObjectDeserializerContext} context context
	 */
	deserialize(context) {
		this.range = context.read();
		const c1 = context.rest;
		this.rangeStatement = c1.read();
		super.deserialize(c1.rest);
	}
}

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

HarmonyExportHeaderDependency.Template = class HarmonyExportDependencyTemplate 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, templateContext) {
		const dep = /** @type {HarmonyExportHeaderDependency} */ (dependency);
		const content = "";
		const replaceUntil = dep.range
			? dep.range[0] - 1
			: dep.rangeStatement[1] - 1;
		source.replace(dep.rangeStatement[0], replaceUntil, content);
	}
};

module.exports = HarmonyExportHeaderDependency;