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108 lines
2.5 KiB
108 lines
2.5 KiB
3 years ago
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const makeSerializable = require("./util/makeSerializable");
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/** @typedef {import("./AsyncDependenciesBlock")} AsyncDependenciesBlock */
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/** @typedef {import("./ChunkGraph")} ChunkGraph */
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/** @typedef {import("./ChunkGroup")} ChunkGroup */
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/** @typedef {import("./Dependency")} Dependency */
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/** @typedef {import("./Dependency").UpdateHashContext} UpdateHashContext */
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/** @typedef {import("./util/Hash")} Hash */
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/** @typedef {(d: Dependency) => boolean} DependencyFilterFunction */
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class DependenciesBlock {
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constructor() {
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/** @type {Dependency[]} */
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this.dependencies = [];
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/** @type {AsyncDependenciesBlock[]} */
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this.blocks = [];
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/** @type {DependenciesBlock} */
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this.parent = undefined;
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}
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getRootBlock() {
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/** @type {DependenciesBlock} */
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let current = this;
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while (current.parent) current = current.parent;
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return current;
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}
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/**
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* Adds a DependencyBlock to DependencyBlock relationship.
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* This is used for when a Module has a AsyncDependencyBlock tie (for code-splitting)
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*
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* @param {AsyncDependenciesBlock} block block being added
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* @returns {void}
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*/
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addBlock(block) {
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this.blocks.push(block);
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block.parent = this;
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}
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/**
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* @param {Dependency} dependency dependency being tied to block.
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* This is an "edge" pointing to another "node" on module graph.
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* @returns {void}
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*/
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addDependency(dependency) {
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this.dependencies.push(dependency);
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}
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/**
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* @param {Dependency} dependency dependency being removed
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* @returns {void}
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*/
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removeDependency(dependency) {
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const idx = this.dependencies.indexOf(dependency);
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if (idx >= 0) {
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this.dependencies.splice(idx, 1);
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}
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}
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/**
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* Removes all dependencies and blocks
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* @returns {void}
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*/
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clearDependenciesAndBlocks() {
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this.dependencies.length = 0;
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this.blocks.length = 0;
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}
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/**
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* @param {Hash} hash the hash used to track dependencies
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* @param {UpdateHashContext} context context
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* @returns {void}
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*/
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updateHash(hash, context) {
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for (const dep of this.dependencies) {
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dep.updateHash(hash, context);
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}
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for (const block of this.blocks) {
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block.updateHash(hash, context);
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}
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}
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serialize({ write }) {
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write(this.dependencies);
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write(this.blocks);
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}
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deserialize({ read }) {
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this.dependencies = read();
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this.blocks = read();
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for (const block of this.blocks) {
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block.parent = this;
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}
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}
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}
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makeSerializable(DependenciesBlock, "webpack/lib/DependenciesBlock");
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module.exports = DependenciesBlock;
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