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1 files changed, 138 insertions, 0 deletions

diff --git a/node_modules/webpack/lib/dependencies/CommonJsRequireDependencyParserPlugin.js b/node_modules/webpack/lib/dependencies/CommonJsRequireDependencyParserPlugin.js
new file mode 100644
index 00000000..b0faa1a3
--- /dev/null
+++ b/node_modules/webpack/lib/dependencies/CommonJsRequireDependencyParserPlugin.js
@@ -0,0 +1,138 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const CommonJsRequireDependency = require("./CommonJsRequireDependency");
+const CommonJsRequireContextDependency = require("./CommonJsRequireContextDependency");
+const RequireHeaderDependency = require("./RequireHeaderDependency");
+const LocalModuleDependency = require("./LocalModuleDependency");
+const ContextDependencyHelpers = require("./ContextDependencyHelpers");
+const LocalModulesHelpers = require("./LocalModulesHelpers");
+const ParserHelpers = require("../ParserHelpers");
+
+class CommonJsRequireDependencyParserPlugin {
+	constructor(options) {
+		this.options = options;
+	}
+
+	apply(parser) {
+		const options = this.options;
+
+		const processItem = (expr, param) => {
+			if (param.isString()) {
+				const dep = new CommonJsRequireDependency(param.string, param.range);
+				dep.loc = expr.loc;
+				dep.optional = !!parser.scope.inTry;
+				parser.state.current.addDependency(dep);
+				return true;
+			}
+		};
+		const processContext = (expr, param) => {
+			const dep = ContextDependencyHelpers.create(
+				CommonJsRequireContextDependency,
+				expr.range,
+				param,
+				expr,
+				options,
+				{},
+				parser
+			);
+			if (!dep) return;
+			dep.loc = expr.loc;
+			dep.optional = !!parser.scope.inTry;
+			parser.state.current.addDependency(dep);
+			return true;
+		};
+
+		parser.hooks.expression
+			.for("require.cache")
+			.tap(
+				"CommonJsRequireDependencyParserPlugin",
+				ParserHelpers.toConstantDependencyWithWebpackRequire(
+					parser,
+					"__webpack_require__.c"
+				)
+			);
+		parser.hooks.expression
+			.for("require")
+			.tap("CommonJsRequireDependencyParserPlugin", expr => {
+				const dep = new CommonJsRequireContextDependency(
+					{
+						request: options.unknownContextRequest,
+						recursive: options.unknownContextRecursive,
+						regExp: options.unknownContextRegExp,
+						mode: "sync"
+					},
+					expr.range
+				);
+				dep.critical =
+					options.unknownContextCritical &&
+					"require function is used in a way in which dependencies cannot be statically extracted";
+				dep.loc = expr.loc;
+				dep.optional = !!parser.scope.inTry;
+				parser.state.current.addDependency(dep);
+				return true;
+			});
+
+		const createHandler = callNew => expr => {
+			if (expr.arguments.length !== 1) return;
+			let localModule;
+			const param = parser.evaluateExpression(expr.arguments[0]);
+			if (param.isConditional()) {
+				let isExpression = false;
+				const prevLength = parser.state.current.dependencies.length;
+				const dep = new RequireHeaderDependency(expr.callee.range);
+				dep.loc = expr.loc;
+				parser.state.current.addDependency(dep);
+				for (const p of param.options) {
+					const result = processItem(expr, p);
+					if (result === undefined) {
+						isExpression = true;
+					}
+				}
+				if (isExpression) {
+					parser.state.current.dependencies.length = prevLength;
+				} else {
+					return true;
+				}
+			}
+			if (
+				param.isString() &&
+				(localModule = LocalModulesHelpers.getLocalModule(
+					parser.state,
+					param.string
+				))
+			) {
+				const dep = new LocalModuleDependency(localModule, expr.range, callNew);
+				dep.loc = expr.loc;
+				parser.state.current.addDependency(dep);
+				return true;
+			} else {
+				const result = processItem(expr, param);
+				if (result === undefined) {
+					processContext(expr, param);
+				} else {
+					const dep = new RequireHeaderDependency(expr.callee.range);
+					dep.loc = expr.loc;
+					parser.state.current.addDependency(dep);
+				}
+				return true;
+			}
+		};
+		parser.hooks.call
+			.for("require")
+			.tap("CommonJsRequireDependencyParserPlugin", createHandler(false));
+		parser.hooks.new
+			.for("require")
+			.tap("CommonJsRequireDependencyParserPlugin", createHandler(true));
+		parser.hooks.call
+			.for("module.require")
+			.tap("CommonJsRequireDependencyParserPlugin", createHandler(false));
+		parser.hooks.new
+			.for("module.require")
+			.tap("CommonJsRequireDependencyParserPlugin", createHandler(true));
+	}
+}
+module.exports = CommonJsRequireDependencyParserPlugin;