dart-sdk/tests/language_strong/syncstar_yield_test.dart
Bob Nystrom 6c757957db Move the dev_compiler strong mode tests into sdk/tests/.
DDC's codegen test copies those files to a local "gen" directory so
that it can do stuff like splitting out the multitests before it
compiles them to JS.

I left all of that alone, so the rest of DDC's test infrastructure is
unchanged. The very first step that builds the "gen" directory just
copies from sdk/tests/..._strong/... instead and the rest is good to go.

I did not move not_yet_strong_tests.dart somewhere more accessible yet
because I'm not sure if kernel needs it or where it should go.

I did not create any status files because DDC doesn't need them and
there are no test suites for the new directories for the other
platforms.
2016-12-09 11:09:55 -08:00

57 lines
1.6 KiB
Dart

// Copyright (c) 2015, 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.
// TODO(jmesserly): this is a copy of the language test of the same name,
// we can remove this copy when we're running against those tests.
import "package:expect/expect.dart";
Iterable<int> foo1() sync* {
yield 1;
}
Iterable<int> foo2(p) sync* {
bool t = false;
yield null;
while (true) {
a: for (int i = 0; i < p; i++) {
if (!t) {
for (int j = 0; j < 3; j++) {
yield -1;
t = true;
break a;
}
}
yield i;
}
}
}
// p is copied to all Iterators from the Iterable returned by foo3.
// Also each iterator will have its own i.
Iterable<int> foo3(int p) sync* {
int i = 0;
i++;
p++;
yield p + i;
}
main() {
Expect.listEquals([1], foo1().toList());
Expect.listEquals([null, -1, 0, 1, 2, 3, 0, 1, 2, 3],
foo2(4).take(10).toList());
Iterable t = foo3(0);
Iterator it1 = t.iterator;
Iterator it2 = t.iterator; /// copyParameters: ok
it1.moveNext();
it2.moveNext(); /// copyParameters: continued
Expect.equals(2, it1.current);
// TODO(sigurdm): Check up on the spec here.
Expect.equals(2, it2.current); /// copyParameters: continued
Expect.isFalse(it1.moveNext());
// Test that two `moveNext()` calls are fine.
Expect.isFalse(it1.moveNext());
Expect.isFalse(it2.moveNext()); /// copyParameters: continued
Expect.isFalse(it2.moveNext()); /// copyParameters: continued
}