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1 files changed, 274 insertions, 0 deletions

diff --git a/node_modules/webpack/lib/dependencies/AMDRequireDependenciesBlockParserPlugin.js b/node_modules/webpack/lib/dependencies/AMDRequireDependenciesBlockParserPlugin.js
new file mode 100644
index 00000000..ea52d819
--- /dev/null
+++ b/node_modules/webpack/lib/dependencies/AMDRequireDependenciesBlockParserPlugin.js
@@ -0,0 +1,274 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const AMDRequireItemDependency = require("./AMDRequireItemDependency");
+const AMDRequireArrayDependency = require("./AMDRequireArrayDependency");
+const AMDRequireContextDependency = require("./AMDRequireContextDependency");
+const AMDRequireDependenciesBlock = require("./AMDRequireDependenciesBlock");
+const UnsupportedDependency = require("./UnsupportedDependency");
+const LocalModuleDependency = require("./LocalModuleDependency");
+const ContextDependencyHelpers = require("./ContextDependencyHelpers");
+const LocalModulesHelpers = require("./LocalModulesHelpers");
+const ConstDependency = require("./ConstDependency");
+const getFunctionExpression = require("./getFunctionExpression");
+const UnsupportedFeatureWarning = require("../UnsupportedFeatureWarning");
+
+class AMDRequireDependenciesBlockParserPlugin {
+	constructor(options) {
+		this.options = options;
+	}
+
+	processFunctionArgument(parser, expression) {
+		let bindThis = true;
+		const fnData = getFunctionExpression(expression);
+		if (fnData) {
+			parser.inScope(
+				fnData.fn.params.filter(i => {
+					return !["require", "module", "exports"].includes(i.name);
+				}),
+				() => {
+					if (fnData.fn.body.type === "BlockStatement") {
+						parser.walkStatement(fnData.fn.body);
+					} else {
+						parser.walkExpression(fnData.fn.body);
+					}
+				}
+			);
+			parser.walkExpressions(fnData.expressions);
+			if (fnData.needThis === false) {
+				bindThis = false;
+			}
+		} else {
+			parser.walkExpression(expression);
+		}
+		return bindThis;
+	}
+
+	apply(parser) {
+		parser.hooks.call
+			.for("require")
+			.tap(
+				"AMDRequireDependenciesBlockParserPlugin",
+				this.processCallRequire.bind(this, parser)
+			);
+	}
+
+	processArray(parser, expr, param) {
+		if (param.isArray()) {
+			for (const p of param.items) {
+				const result = this.processItem(parser, expr, p);
+				if (result === undefined) {
+					this.processContext(parser, expr, p);
+				}
+			}
+			return true;
+		} else if (param.isConstArray()) {
+			const deps = [];
+			for (const request of param.array) {
+				let dep, localModule;
+				if (request === "require") {
+					dep = "__webpack_require__";
+				} else if (["exports", "module"].includes(request)) {
+					dep = request;
+				} else if (
+					(localModule = LocalModulesHelpers.getLocalModule(
+						parser.state,
+						request
+					))
+				) {
+					dep = new LocalModuleDependency(localModule, undefined, false);
+					dep.loc = expr.loc;
+					parser.state.current.addDependency(dep);
+				} else {
+					dep = this.newRequireItemDependency(request);
+					dep.loc = expr.loc;
+					dep.optional = !!parser.scope.inTry;
+					parser.state.current.addDependency(dep);
+				}
+				deps.push(dep);
+			}
+			const dep = this.newRequireArrayDependency(deps, param.range);
+			dep.loc = expr.loc;
+			dep.optional = !!parser.scope.inTry;
+			parser.state.current.addDependency(dep);
+			return true;
+		}
+	}
+	processItem(parser, expr, param) {
+		if (param.isConditional()) {
+			for (const p of param.options) {
+				const result = this.processItem(parser, expr, p);
+				if (result === undefined) {
+					this.processContext(parser, expr, p);
+				}
+			}
+			return true;
+		} else if (param.isString()) {
+			let dep, localModule;
+			if (param.string === "require") {
+				dep = new ConstDependency("__webpack_require__", param.string);
+			} else if (param.string === "module") {
+				dep = new ConstDependency(
+					parser.state.module.buildInfo.moduleArgument,
+					param.range
+				);
+			} else if (param.string === "exports") {
+				dep = new ConstDependency(
+					parser.state.module.buildInfo.exportsArgument,
+					param.range
+				);
+			} else if (
+				(localModule = LocalModulesHelpers.getLocalModule(
+					parser.state,
+					param.string
+				))
+			) {
+				dep = new LocalModuleDependency(localModule, param.range, false);
+			} else {
+				dep = this.newRequireItemDependency(param.string, param.range);
+			}
+			dep.loc = expr.loc;
+			dep.optional = !!parser.scope.inTry;
+			parser.state.current.addDependency(dep);
+			return true;
+		}
+	}
+	processContext(parser, expr, param) {
+		const dep = ContextDependencyHelpers.create(
+			AMDRequireContextDependency,
+			param.range,
+			param,
+			expr,
+			this.options,
+			{},
+			parser
+		);
+		if (!dep) return;
+		dep.loc = expr.loc;
+		dep.optional = !!parser.scope.inTry;
+		parser.state.current.addDependency(dep);
+		return true;
+	}
+
+	processArrayForRequestString(param) {
+		if (param.isArray()) {
+			const result = param.items.map(item =>
+				this.processItemForRequestString(item)
+			);
+			if (result.every(Boolean)) return result.join(" ");
+		} else if (param.isConstArray()) {
+			return param.array.join(" ");
+		}
+	}
+
+	processItemForRequestString(param) {
+		if (param.isConditional()) {
+			const result = param.options.map(item =>
+				this.processItemForRequestString(item)
+			);
+			if (result.every(Boolean)) return result.join("|");
+		} else if (param.isString()) {
+			return param.string;
+		}
+	}
+
+	processCallRequire(parser, expr) {
+		let param;
+		let dep;
+		let result;
+
+		const old = parser.state.current;
+
+		if (expr.arguments.length >= 1) {
+			param = parser.evaluateExpression(expr.arguments[0]);
+			dep = this.newRequireDependenciesBlock(
+				expr,
+				param.range,
+				expr.arguments.length > 1 ? expr.arguments[1].range : null,
+				expr.arguments.length > 2 ? expr.arguments[2].range : null,
+				parser.state.module,
+				expr.loc,
+				this.processArrayForRequestString(param)
+			);
+			parser.state.current = dep;
+		}
+
+		if (expr.arguments.length === 1) {
+			parser.inScope([], () => {
+				result = this.processArray(parser, expr, param);
+			});
+			parser.state.current = old;
+			if (!result) return;
+			parser.state.current.addBlock(dep);
+			return true;
+		}
+
+		if (expr.arguments.length === 2 || expr.arguments.length === 3) {
+			try {
+				parser.inScope([], () => {
+					result = this.processArray(parser, expr, param);
+				});
+				if (!result) {
+					dep = new UnsupportedDependency("unsupported", expr.range);
+					old.addDependency(dep);
+					if (parser.state.module) {
+						parser.state.module.errors.push(
+							new UnsupportedFeatureWarning(
+								parser.state.module,
+								"Cannot statically analyse 'require(…, …)' in line " +
+									expr.loc.start.line,
+								expr.loc
+							)
+						);
+					}
+					dep = null;
+					return true;
+				}
+				dep.functionBindThis = this.processFunctionArgument(
+					parser,
+					expr.arguments[1]
+				);
+				if (expr.arguments.length === 3) {
+					dep.errorCallbackBindThis = this.processFunctionArgument(
+						parser,
+						expr.arguments[2]
+					);
+				}
+			} finally {
+				parser.state.current = old;
+				if (dep) parser.state.current.addBlock(dep);
+			}
+			return true;
+		}
+	}
+
+	newRequireDependenciesBlock(
+		expr,
+		arrayRange,
+		functionRange,
+		errorCallbackRange,
+		module,
+		loc,
+		request
+	) {
+		return new AMDRequireDependenciesBlock(
+			expr,
+			arrayRange,
+			functionRange,
+			errorCallbackRange,
+			module,
+			loc,
+			request
+		);
+	}
+	newRequireItemDependency(request, range) {
+		return new AMDRequireItemDependency(request, range);
+	}
+	newRequireArrayDependency(depsArray, range) {
+		return new AMDRequireArrayDependency(depsArray, range);
+	}
+}
+module.exports = AMDRequireDependenciesBlockParserPlugin;