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

Issue 2756693002: Add generic-methods 'golden' tests for 'reify' transformation (Closed)
Patch Set: Mark tests with Crash/Fail in reify.status instead of excluding Created 3 years, 9 months ago
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Index: pkg/kernel/testcases/reify/generic_methods_recursive_bound_error_test.dart
diff --git a/pkg/kernel/testcases/reify/generic_methods_recursive_bound_error_test.dart b/pkg/kernel/testcases/reify/generic_methods_recursive_bound_error_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..c90957daf2f570d2938db80c736357935a4d98c7
--- /dev/null
+++ b/pkg/kernel/testcases/reify/generic_methods_recursive_bound_error_test.dart
@@ -0,0 +1,33 @@
+// Copyright (c) 2017, 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 F-bounded quantification works for generic methods, and that types
+// that are passed to generic methods in dynamic calls are checked for being
+// recursively defined. An exception should be thrown if the type doesn't meet
+// the expectation.
+
+library generic_methods_recursive_bound_error_test;
+
+import "test_base.dart";
+
+abstract class I<T> {
+ bool fun(T x);
+}
+
+void foo<T extends I<T>>(List<T> a) {
+ if (a.length > 1) {
+ a[0].fun(a[1]);
+ }
+}
+
+class C implements I<C> {
+ bool fun(C c) => true;
+}
+
+main() {
+ dynamic bar = foo;
+ List<int> list = <int>[4, 2];
+ // The type int does not extend I<int>.
+ expectThrows(() => bar<int>(list), (e) => e is TypeError);
+}

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