chushihua

node_modules/webpack/lib/DependenciesBlockVariable.js

@@ -0,0 +1,51 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const ReplaceSource = require("webpack-sources").ReplaceSource;
+const RawSource = require("webpack-sources").RawSource;
+
+class DependenciesBlockVariable {
+	constructor(name, expression, dependencies) {
+		this.name = name;
+		this.expression = expression;
+		this.dependencies = dependencies || [];
+	}
+
+	updateHash(hash) {
+		hash.update(this.name);
+		hash.update(this.expression);
+		this.dependencies.forEach(d => {
+			d.updateHash(hash);
+		});
+	}
+
+	expressionSource(dependencyTemplates, outputOptions, requestShortener) {
+		const source = new ReplaceSource(new RawSource(this.expression));
+		this.dependencies.forEach(dep => {
+			const template = dependencyTemplates.get(dep.constructor);
+			if(!template) throw new Error(`No template for dependency: ${dep.constructor.name}`);
+			template.apply(dep, source, outputOptions, requestShortener, dependencyTemplates);
+		});
+		return source;
+	}
+
+	disconnect() {
+		this.dependencies.forEach(d => {
+			d.disconnect();
+		});
+	}
+
+	hasDependencies(filter) {
+		if(filter) {
+			if(this.dependencies.some(filter)) return true;
+		} else {
+			if(this.dependencies.length > 0) return true;
+		}
+		return false;
+	}
+}
+
+module.exports = DependenciesBlockVariable;