Index: tests/compiler/dart2js/top_level_closure_tree_shake_test.dart |
diff --git a/tests/compiler/dart2js/top_level_closure_tree_shake_test.dart b/tests/compiler/dart2js/top_level_closure_tree_shake_test.dart |
new file mode 100644 |
index 0000000000000000000000000000000000000000..6c3ae37a0e688c5814c82f10f5349baebf4f1ae6 |
--- /dev/null |
+++ b/tests/compiler/dart2js/top_level_closure_tree_shake_test.dart |
@@ -0,0 +1,38 @@ |
+// Copyright (c) 2013, 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. |
+ |
+import 'dart:async'; |
+import 'package:expect/expect.dart'; |
+import 'package:async_helper/async_helper.dart'; |
+import 'compiler_helper.dart'; |
+ |
+const String TEST_ONE = r""" |
+main() { |
+ var f = use; |
+ if (false) { |
+ // This statement and the use of 'foo' should be optimized away, causing |
+ // 'foo' to be absent from the final code. |
+ f(foo); |
+ } |
+ f(bar); |
+} |
+ |
+foo() => 'Tarantula!'; |
+bar() => 'Coelacanth!'; |
+ |
+use(x) { |
+ print(x()); |
+} |
+"""; |
+ |
+ |
+main() { |
+ asyncTest(() => Future.wait([ |
+ compileAll(TEST_ONE).then((String generated) { |
+ Expect.isFalse(generated.contains('Tarantula!'), |
+ "failed to remove 'foo'"); |
+ Expect.isTrue(generated.contains('Coelacanth!')); |
+ }), |
+ ])); |
+} |