chushihua

node_modules/webpack/lib/Module.js

@@ -0,0 +1,250 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const util = require("util");
+
+const DependenciesBlock = require("./DependenciesBlock");
+const ModuleReason = require("./ModuleReason");
+const SortableSet = require("./util/SortableSet");
+const Template = require("./Template");
+
+let debugId = 1000;
+
+const sortById = (a, b) => {
+	return a.id - b.id;
+};
+
+const sortByDebugId = (a, b) => {
+	return a.debugId - b.debugId;
+};
+
+class Module extends DependenciesBlock {
+
+	constructor() {
+		super();
+		this.context = null;
+		this.reasons = [];
+		this.debugId = debugId++;
+		this.id = null;
+		this.portableId = null;
+		this.index = null;
+		this.index2 = null;
+		this.depth = null;
+		this.used = null;
+		this.usedExports = null;
+		this.providedExports = null;
+		this._chunks = new SortableSet(undefined, sortById);
+		this._chunksDebugIdent = undefined;
+		this.warnings = [];
+		this.dependenciesWarnings = [];
+		this.errors = [];
+		this.dependenciesErrors = [];
+		this.strict = false;
+		this.meta = {};
+		this.optimizationBailout = [];
+	}
+
+	disconnect() {
+		this.reasons.length = 0;
+		this.id = null;
+		this.index = null;
+		this.index2 = null;
+		this.depth = null;
+		this.used = null;
+		this.usedExports = null;
+		this.providedExports = null;
+		this._chunks.clear();
+		this._chunksDebugIdent = undefined;
+		this.optimizationBailout.length = 0;
+		super.disconnect();
+	}
+
+	unseal() {
+		this.id = null;
+		this.index = null;
+		this.index2 = null;
+		this.depth = null;
+		this._chunks.clear();
+		this._chunksDebugIdent = undefined;
+		super.unseal();
+	}
+
+	setChunks(chunks) {
+		this._chunks = new SortableSet(chunks, sortById);
+		this._chunksDebugIdent = undefined;
+	}
+
+	addChunk(chunk) {
+		this._chunks.add(chunk);
+		this._chunksDebugIdent = undefined;
+	}
+
+	removeChunk(chunk) {
+		if(this._chunks.delete(chunk)) {
+			this._chunksDebugIdent = undefined;
+			chunk.removeModule(this);
+			return true;
+		}
+		return false;
+	}
+
+	isInChunk(chunk) {
+		return this._chunks.has(chunk);
+	}
+
+	getChunkIdsIdent() {
+		if(this._chunksDebugIdent !== undefined) return this._chunksDebugIdent;
+		this._chunks.sortWith(sortByDebugId);
+		const chunks = this._chunks;
+		const list = [];
+		for(const chunk of chunks) {
+			const debugId = chunk.debugId;
+
+			if(typeof debugId !== "number") {
+				return this._chunksDebugIdent = null;
+			}
+
+			list.push(debugId);
+		}
+
+		return this._chunksDebugIdent = list.join(",");
+	}
+
+	forEachChunk(fn) {
+		this._chunks.forEach(fn);
+	}
+
+	mapChunks(fn) {
+		return Array.from(this._chunks, fn);
+	}
+
+	getChunks() {
+		return Array.from(this._chunks);
+	}
+
+	getNumberOfChunks() {
+		return this._chunks.size;
+	}
+
+	hasEqualsChunks(otherModule) {
+		if(this._chunks.size !== otherModule._chunks.size) return false;
+		this._chunks.sortWith(sortByDebugId);
+		otherModule._chunks.sortWith(sortByDebugId);
+		const a = this._chunks[Symbol.iterator]();
+		const b = otherModule._chunks[Symbol.iterator]();
+		while(true) { // eslint-disable-line
+			const aItem = a.next();
+			const bItem = b.next();
+			if(aItem.done) return true;
+			if(aItem.value !== bItem.value) return false;
+		}
+	}
+
+	addReason(module, dependency) {
+		this.reasons.push(new ModuleReason(module, dependency));
+	}
+
+	removeReason(module, dependency) {
+		for(let i = 0; i < this.reasons.length; i++) {
+			let r = this.reasons[i];
+			if(r.module === module && r.dependency === dependency) {
+				this.reasons.splice(i, 1);
+				return true;
+			}
+		}
+		return false;
+	}
+
+	hasReasonForChunk(chunk) {
+		for(let i = 0; i < this.reasons.length; i++) {
+			if(this.reasons[i].hasChunk(chunk))
+				return true;
+		}
+		return false;
+	}
+
+	rewriteChunkInReasons(oldChunk, newChunks) {
+		for(let i = 0; i < this.reasons.length; i++) {
+			this.reasons[i].rewriteChunks(oldChunk, newChunks);
+		}
+	}
+
+	isUsed(exportName) {
+		if(this.used === null) return exportName;
+		if(!exportName) return !!this.used;
+		if(!this.used) return false;
+		if(!this.usedExports) return false;
+		if(this.usedExports === true) return exportName;
+		let idx = this.usedExports.indexOf(exportName);
+		if(idx < 0) return false;
+		if(this.isProvided(exportName))
+			return Template.numberToIdentifer(idx);
+		return exportName;
+	}
+
+	isProvided(exportName) {
+		if(!Array.isArray(this.providedExports))
+			return null;
+		return this.providedExports.indexOf(exportName) >= 0;
+	}
+
+	toString() {
+		return `Module[${this.id || this.debugId}]`;
+	}
+
+	needRebuild(fileTimestamps, contextTimestamps) {
+		return true;
+	}
+
+	updateHash(hash) {
+		hash.update(this.id + "" + this.used);
+		hash.update(JSON.stringify(this.usedExports));
+		super.updateHash(hash);
+	}
+
+	sortItems(sortChunks) {
+		super.sortItems();
+		if(sortChunks)
+			this._chunks.sort();
+		this.reasons.sort((a, b) => sortById(a.module, b.module));
+		if(Array.isArray(this.usedExports)) {
+			this.usedExports.sort();
+		}
+	}
+
+	unbuild() {
+		this.disconnect();
+	}
+}
+
+Object.defineProperty(Module.prototype, "entry", {
+	configurable: false,
+	get() {
+		throw new Error("Module.entry was removed. Use Chunk.entryModule");
+	},
+	set() {
+		throw new Error("Module.entry was removed. Use Chunk.entryModule");
+	}
+});
+
+Object.defineProperty(Module.prototype, "chunks", {
+	configurable: false,
+	get: util.deprecate(function() {
+		return Array.from(this._chunks);
+	}, "Module.chunks: Use Module.forEachChunk/mapChunks/getNumberOfChunks/isInChunk/addChunk/removeChunk instead"),
+	set() {
+		throw new Error("Readonly. Use Module.addChunk/removeChunk to modify chunks.");
+	}
+});
+
+Module.prototype.identifier = null;
+Module.prototype.readableIdentifier = null;
+Module.prototype.build = null;
+Module.prototype.source = null;
+Module.prototype.size = null;
+Module.prototype.nameForCondition = null;
+
+module.exports = Module;