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Unified Diff: pkg/kernel/testcases/reify/closure_test.dart

Issue 2697873007: Merge the work on Generic Types Reification from 'dart-lang/reify' repo (Closed)
Patch Set: Get back parameter erroneously removed by previous commit Created 3 years, 10 months ago
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Index: pkg/kernel/testcases/reify/closure_test.dart
diff --git a/pkg/kernel/testcases/reify/closure_test.dart b/pkg/kernel/testcases/reify/closure_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..17206bcc16a7734800a1329b324e77f68b86ed13
--- /dev/null
+++ b/pkg/kernel/testcases/reify/closure_test.dart
@@ -0,0 +1,49 @@
+// Copyright (c) 2016, 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.
+
+library closure_test;
+
+import 'test_base.dart';
+
+class A {}
+
+class B {}
+
+typedef B A2B(A a);
+typedef A B2A(B b);
+
+bar(A a) {
+ return null;
+}
+
+B baz(a) {
+ return null;
+}
+
+main() {
+ B foo(A a) {
+ return null;
+ }
+
+ A qux(B b) {
+ return null;
+ }
+
+ expectTrue(foo is A2B);
+ expectTrue(qux is! A2B);
+ expectTrue(foo is! B2A);
+ expectTrue(qux is B2A);
+
+ expectTrue(bar is A2B);
+ expectTrue(bar is! B2A);
+ expectTrue(baz is A2B);
+ expectTrue(baz is! B2A);
+
+ var rab = bar;
+ var zab = baz;
+ expectTrue(rab is A2B);
+ expectTrue(rab is! B2A);
+ expectTrue(zab is A2B);
+ expectTrue(zab is! B2A);
+}
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