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sdk/tests/language/no_such_method/no_such_method3_test.dart
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Robert Nystrom 65032b4e4e Migrate language_2/no_such_method to NNBD.
Change-Id: I5bae11c115c7ee2c9a581ce71f2d29203b92f923
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149783
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
2020-06-03 17:15:10 +00:00

39 lines
751 B
Dart

// 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.
// Test that a static type inferrer takes [noSuchMethod] into account.
// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
import "package:expect/expect.dart";
class A {
B foobarbaz() {
return new B();
}
}
class B {
noSuchMethod(im) {
return 42;
}
}
bar() {
var b;
for (int i = 0; i < 20; ++i)
if (i % 2 == 0)
b = new A();
else
b = new B();
return b;
}
void main() {
var x = bar();
var y = x.foobarbaz();
Expect.equals(42, y);
Expect.isFalse(y is B);
}