1 files changed, 88 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/dependencies/CommonJsPlugin.js b/node_modules/webpack/lib/dependencies/CommonJsPlugin.js
new file mode 100644
index 000000000..e514fd99e
--- /dev/null
+++ b/node_modules/webpack/lib/dependencies/CommonJsPlugin.js
@@ -0,0 +1,88 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+const ConstDependency = require("./ConstDependency");
+const CommonJsRequireDependency = require("./CommonJsRequireDependency");
+const CommonJsRequireContextDependency = require("./CommonJsRequireContextDependency");
+const RequireResolveDependency = require("./RequireResolveDependency");
+const RequireResolveContextDependency = require("./RequireResolveContextDependency");
+const RequireResolveHeaderDependency = require("./RequireResolveHeaderDependency");
+const RequireHeaderDependency = require("./RequireHeaderDependency");
+
+const NullFactory = require("../NullFactory");
+
+const RequireResolveDependencyParserPlugin = require("./RequireResolveDependencyParserPlugin");
+const CommonJsRequireDependencyParserPlugin = require("./CommonJsRequireDependencyParserPlugin");
+
+const ParserHelpers = require("../ParserHelpers");
+
+class CommonJsPlugin {
+	constructor(options) {
+		this.options = options;
+	}
+
+	apply(compiler) {
+		const options = this.options;
+		compiler.plugin("compilation", (compilation, params) => {
+			const normalModuleFactory = params.normalModuleFactory;
+			const contextModuleFactory = params.contextModuleFactory;
+
+			compilation.dependencyFactories.set(CommonJsRequireDependency, normalModuleFactory);
+			compilation.dependencyTemplates.set(CommonJsRequireDependency, new CommonJsRequireDependency.Template());
+
+			compilation.dependencyFactories.set(CommonJsRequireContextDependency, contextModuleFactory);
+			compilation.dependencyTemplates.set(CommonJsRequireContextDependency, new CommonJsRequireContextDependency.Template());
+
+			compilation.dependencyFactories.set(RequireResolveDependency, normalModuleFactory);
+			compilation.dependencyTemplates.set(RequireResolveDependency, new RequireResolveDependency.Template());
+
+			compilation.dependencyFactories.set(RequireResolveContextDependency, contextModuleFactory);
+			compilation.dependencyTemplates.set(RequireResolveContextDependency, new RequireResolveContextDependency.Template());
+
+			compilation.dependencyFactories.set(RequireResolveHeaderDependency, new NullFactory());
+			compilation.dependencyTemplates.set(RequireResolveHeaderDependency, new RequireResolveHeaderDependency.Template());
+
+			compilation.dependencyFactories.set(RequireHeaderDependency, new NullFactory());
+			compilation.dependencyTemplates.set(RequireHeaderDependency, new RequireHeaderDependency.Template());
+
+			params.normalModuleFactory.plugin("parser", (parser, parserOptions) => {
+
+				if(typeof parserOptions.commonjs !== "undefined" && !parserOptions.commonjs)
+					return;
+
+				const requireExpressions = ["require", "require.resolve", "require.resolveWeak"];
+				for(let expression of requireExpressions) {
+					parser.plugin(`typeof ${expression}`, ParserHelpers.toConstantDependency("function"));
+					parser.plugin(`evaluate typeof ${expression}`, ParserHelpers.evaluateToString("function"));
+				}
+
+				parser.plugin("evaluate typeof module", ParserHelpers.evaluateToString("object"));
+				parser.plugin("assign require", (expr) => {
+					// to not leak to global "require", we need to define a local require here.
+					const dep = new ConstDependency("var require;", 0);
+					dep.loc = expr.loc;
+					parser.state.current.addDependency(dep);
+					parser.scope.definitions.push("require");
+					return true;
+				});
+				parser.plugin("can-rename require", () => true);
+				parser.plugin("rename require", (expr) => {
+					// define the require variable. It's still undefined, but not "not defined".
+					const dep = new ConstDependency("var require;", 0);
+					dep.loc = expr.loc;
+					parser.state.current.addDependency(dep);
+					return false;
+				});
+				parser.plugin("typeof module", () => true);
+				parser.plugin("evaluate typeof exports", ParserHelpers.evaluateToString("object"));
+				parser.apply(
+					new CommonJsRequireDependencyParserPlugin(options),
+					new RequireResolveDependencyParserPlugin(options)
+				);
+			});
+		});
+	}
+}
+module.exports = CommonJsPlugin;