настройка webpack

node_modules/webpack/lib/dependencies/RequireResolveDependencyParserPlugin.js

@@ -0,0 +1,86 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const RequireResolveDependency = require("./RequireResolveDependency");
+const RequireResolveContextDependency = require("./RequireResolveContextDependency");
+const RequireResolveHeaderDependency = require("./RequireResolveHeaderDependency");
+const ContextDependencyHelpers = require("./ContextDependencyHelpers");
+
+class RequireResolveDependencyParserPlugin {
+	constructor(options) {
+		this.options = options;
+	}
+
+	apply(parser) {
+		const options = this.options;
+
+		const process = (expr, weak) => {
+			if (expr.arguments.length !== 1) return;
+			const param = parser.evaluateExpression(expr.arguments[0]);
+			if (param.isConditional()) {
+				for (const option of param.options) {
+					const result = processItem(expr, option, weak);
+					if (result === undefined) {
+						processContext(expr, option, weak);
+					}
+				}
+				const dep = new RequireResolveHeaderDependency(expr.callee.range);
+				dep.loc = expr.loc;
+				parser.state.current.addDependency(dep);
+				return true;
+			} else {
+				const result = processItem(expr, param, weak);
+				if (result === undefined) {
+					processContext(expr, param, weak);
+				}
+				const dep = new RequireResolveHeaderDependency(expr.callee.range);
+				dep.loc = expr.loc;
+				parser.state.current.addDependency(dep);
+				return true;
+			}
+		};
+		const processItem = (expr, param, weak) => {
+			if (param.isString()) {
+				const dep = new RequireResolveDependency(param.string, param.range);
+				dep.loc = expr.loc;
+				dep.optional = !!parser.scope.inTry;
+				dep.weak = weak;
+				parser.state.current.addDependency(dep);
+				return true;
+			}
+		};
+		const processContext = (expr, param, weak) => {
+			const dep = ContextDependencyHelpers.create(
+				RequireResolveContextDependency,
+				param.range,
+				param,
+				expr,
+				options,
+				{
+					mode: weak ? "weak" : "sync"
+				},
+				parser
+			);
+			if (!dep) return;
+			dep.loc = expr.loc;
+			dep.optional = !!parser.scope.inTry;
+			parser.state.current.addDependency(dep);
+			return true;
+		};
+
+		parser.hooks.call
+			.for("require.resolve")
+			.tap("RequireResolveDependencyParserPlugin", expr => {
+				return process(expr, false);
+			});
+		parser.hooks.call
+			.for("require.resolveWeak")
+			.tap("RequireResolveDependencyParserPlugin", expr => {
+				return process(expr, true);
+			});
+	}
+}
+module.exports = RequireResolveDependencyParserPlugin;