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node_modules/webpack/lib/ModuleReason.js 1.14 KB
aaac7fed   liuqimichale   add
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  /*
  	MIT License http://www.opensource.org/licenses/mit-license.php
  	Author Tobias Koppers @sokra
  */
  "use strict";
  
  const util = require("util");
  
  class ModuleReason {
  	constructor(module, dependency) {
  		this.module = module;
  		this.dependency = dependency;
  		this._chunks = null;
  	}
  
  	hasChunk(chunk) {
  		if(this._chunks) {
  			if(this._chunks.has(chunk))
  				return true;
  		} else if(this.module._chunks.has(chunk))
  			return true;
  		return false;
  	}
  
  	rewriteChunks(oldChunk, newChunks) {
  		if(!this._chunks) {
  			if(!this.module._chunks.has(oldChunk))
  				return;
  			this._chunks = new Set(this.module._chunks);
  		}
  		if(this._chunks.has(oldChunk)) {
  			this._chunks.delete(oldChunk);
  			for(let i = 0; i < newChunks.length; i++) {
  				this._chunks.add(newChunks[i]);
  			}
  		}
  	}
  }
  
  Object.defineProperty(ModuleReason.prototype, "chunks", {
  	configurable: false,
  	get: util.deprecate(function() {
  		return this._chunks ? Array.from(this._chunks) : null;
  	}, "ModuleReason.chunks: Use ModuleReason.hasChunk/rewriteChunks instead"),
  	set() {
  		throw new Error("Readonly. Use ModuleReason.rewriteChunks to modify chunks.");
  	}
  });
  
  module.exports = ModuleReason;