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Unified Diff: tests/language/function_subtype_local0_test.dart

Issue 12334070: Support runtime check of function types. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Minor fix Created 7 years, 6 months ago
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Index: tests/language/function_subtype_local0_test.dart
diff --git a/tests/language/function_subtype_local0_test.dart b/tests/language/function_subtype_local0_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..bec28d3c4de2dd79184bcad9f306930360e939b3
--- /dev/null
+++ b/tests/language/function_subtype_local0_test.dart
@@ -0,0 +1,34 @@
+// 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.
+// Dart test program for constructors and initializers.
+
+// Check function subtyping for local functions.
+
+import 'package:expect/expect.dart';
+
+typedef int Foo(bool a, [String b]);
+typedef int Bar(bool a, [String b]);
+typedef int Baz(bool a, {String b});
+typedef int Boz(bool a);
+
+main() {
+ int foo(bool a, [String b]) => null;
+ int baz(bool a, {String b}) => null;
+ int boz(bool a, {int b}) => null;
+
+ Expect.isTrue(foo is Foo, 'foo is Foo');
+ Expect.isTrue(foo is Bar, 'foo is Bar');
+ Expect.isFalse(foo is Baz, 'foo is Baz');
+ Expect.isTrue(foo is Boz, 'foo is Boz');
+
+ Expect.isFalse(baz is Foo, 'baz is Foo');
+ Expect.isFalse(baz is Bar, 'baz is Bar');
+ Expect.isTrue(baz is Baz, 'baz is Baz');
+ Expect.isTrue(baz is Boz, 'baz is Boz');
+
+ Expect.isFalse(boz is Foo, 'boz is Foo');
+ Expect.isFalse(boz is Bar, 'boz is Bar');
+ Expect.isFalse(boz is Baz, 'boz is Baz');
+ Expect.isTrue(boz is Boz, 'boz is Boz');
+}

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