Merge pull request #5260 from ljqx/iife-nested-this-properties

[Parser] support rename `this` in `.call(this)` inside arbitrary level `.call` for IIFE

lib/Parser.js

@@ -266,6 +266,14 @@ class Parser extends Tapable {
 				return this.applyPluginsBailResult1("evaluate defined Identifier " + name, expr);
 			}
 		});
+		this.plugin("evaluate ThisExpression", function(expr) {
+			const name = this.scope.renames.$this;
+			if(name) {
+				const result = this.applyPluginsBailResult1("evaluate Identifier " + name, expr);
+				if(result) return result;
+				return new BasicEvaluatedExpression().setIdentifier(name).setRange(expr.range);
+			}
+		});
 		this.plugin("evaluate MemberExpression", function(expression) {
 			let expr = expression;
 			let exprName = [];

test/Parser.test.js

@@ -180,6 +180,17 @@ describe("Parser", () => {
 				ijksub: ["test"]
 			}
 		],
+		"renaming this's properties with nested IIFE (called)": [
+			function() {
+				! function() {
+					! function() {
+						this.sub;
+					}.call(this);
+				}.call(ijk);
+			}, {
+				ijksub: ["test"]
+			}
+		],
 	};
 
 	Object.keys(testCases).forEach((name) => {

test/configCases/plugins/provide-plugin/index.js

@@ -24,6 +24,16 @@ it("should provide a module for a nested var within a IIFE's this", function() {
 	}.call(process));
 });
 
+it("should provide a module for a nested var within a nested IIFE's this", function() {
+	(function() {
+		(function() {
+			(this.env.NODE_ENV).should.be.eql("development");
+			var x = this.env.NODE_ENV;
+			x.should.be.eql("development");
+		}.call(this));
+	}.call(process));
+});
+
 it("should not provide a module for a part of a var", function() {
 	(typeof bbb).should.be.eql("undefined");
 });