Minifying renamer for classes, methods and instance variables.

tests/compiler/dart2js/class_codegen_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 // Test that parameters keep their names in the output.
 
 #import("compiler_helper.dart");
 #import("parser_helper.dart");
 
 const String TEST_ONE = r"""
 class A { }
@@ skipping 44 matching lines @@
 class A {
   var a;
   A(a) : this.a = a {}
 }
 
 main() {
   new A(3);
 }
 """;
 
-twoClasses() {
-  String generated = compileAll(TEST_ONE);
-  Expect.isTrue(generated.contains('\$.A = {"": [],\n "super": "Object"'));
-  Expect.isTrue(generated.contains('\$.B = {"": [],\n "super": "Object"'));
+
+String getClassName(String generated, int idx) {

[floitsch, 2012/10/25 12:58:38]

index

+  RegExp classNameRE = new RegExp(r'\$\$.([A-Za-z]) ?= ?\{"":');
+  return classNameRE.allMatches(generated)[idx][1];
+}
+
+String classRE(className) {
+  return '\\\$.$className ?= ?\\{"":\\s*\\[\\],\\s*"super": ?"O(bject)?"';
 }
 
 subClass() {
-  checkOutput(String generated) {
-    Expect.isTrue(generated.contains('\$.A = {"": [],\n "super": "Object"'));
-    Expect.isTrue(generated.contains('\$.B = {"": [],\n "super": "A"'));
+
+twoClasses() {
+  String generated = compileAll(TEST_ONE);
+  String className = getClassName(generated, 0);
+  String className2 = getClassName(generated, 1);
+  Expect.isFalse(className == className2);
+  Expect.isTrue(new RegExp(classRe(className)).hasMatch(generated));
+  Expect.isTrue(new RegExp(classRe(className2)).hasMatch(generated));
+}
+
+subClass() {
+  void checkForClass(String generated, String className, String superClass) {
+    RegExp re = new RegExp(
+        '\\\$\\.$className ?= ?\\{"":\\s*\\[\\],\\s*"super": ?"$superClass"');

[floitsch, 2012/10/25 12:58:38]

Not sure if it's better, but it would get rid of some escapes:
r'\$\.''$className'r'....'

+    Expect.isTrue(re.hasMatch(generated));
   }
 
-  checkOutput(compileAll(TEST_TWO));
-  checkOutput(compileAll(TEST_THREE));
+  checkOutput1(String generated) {
+    String className = getClassName(generated, 0);
+    String className2 = getClassName(generated, 1);
+    checkForClass(generated, className, 'O(bject)?');
+    checkForClass(generated, className2, className);
+  }
+
+  checkOutput2(String generated) {
+    String className = getClassName(generated, 0);
+    String className2 = getClassName(generated, 1);
+    checkForClass(generated, className, className2);
+    checkForClass(generated, className2, 'O(bject)?');
+  }
+
+  checkOutput1(compileAll(TEST_TWO));
+  checkOutput2(compileAll(TEST_THREE));
 }
 
 fieldTest() {
   String generated = compileAll(TEST_FOUR);
-  Expect.isTrue(generated.contains(r"""
-$.B = {"": ["y", "z", "x"],
+  var className = getClassName(generated, 1);
+  Expect.isTrue(generated.contains("""
+\$.$className = {"":
+ ["y", "z", "x"],
  "super": "A"
 }"""));
 }
 
 constructor1() {
   String generated = compileAll(TEST_FIVE);
-  Expect.isTrue(generated.contains(r"new $.A(a);"));
+  Expect.isTrue(generated.contains(r"new $.A(a);") ||
+                generated.contains(r"new $.S(a);"));
 }
 
 main() {
   twoClasses();
   subClass();
   fieldTest();
   constructor1();
 }