node_modules

1 files changed, 34 insertions, 0 deletions

diff --git a/node_modules/webpack/lib/UseStrictPlugin.js b/node_modules/webpack/lib/UseStrictPlugin.js
new file mode 100644
index 000000000..2135839cf
--- /dev/null
+++ b/node_modules/webpack/lib/UseStrictPlugin.js
@@ -0,0 +1,34 @@
+/*

+	MIT License http://www.opensource.org/licenses/mit-license.php

+	Author Tobias Koppers @sokra

+*/

+"use strict";

+

+const ConstDependency = require("./dependencies/ConstDependency");

+

+class UseStrictPlugin {

+	apply(compiler) {

+		compiler.plugin("compilation", (compilation, params) => {

+			params.normalModuleFactory.plugin("parser", (parser) => {

+				const parserInstance = parser;

+				parser.plugin("program", (ast) => {

+					const firstNode = ast.body[0];

+					if(firstNode &&

+						firstNode.type === "ExpressionStatement" &&

+						firstNode.expression.type === "Literal" &&

+						firstNode.expression.value === "use strict") {

+						// Remove "use strict" expression. It will be added later by the renderer again.

+						// This is necessary in order to not break the strict mode when webpack prepends code.

+						// @see https://github.com/webpack/webpack/issues/1970

+						const dep = new ConstDependency("", firstNode.range);

+						dep.loc = firstNode.loc;

+						parserInstance.state.current.addDependency(dep);

+						parserInstance.state.module.strict = true;

+					}

+				});

+			});

+		});

+	}

+}

+

+module.exports = UseStrictPlugin;