blob: 5484a134811f8f349567b0184c2ed31c4bfd43aa [file] [log] [blame]
// 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.
// @dart = 2.9
// 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;
}
void testCapturingInSyncStar() {
int localL0 = 0;
nested1(int paramL1) sync* {
int localL1 = 0;
localL0 += 10;
paramL1 += 100;
nested2(int paramL2) sync* {
int localL2 = 0;
localL0 += 1000;
paramL1 += 10000;
localL1 += 100000;
paramL2 += 1000000;
localL2 += 10000000;
yield localL0 + paramL1 + localL1 + paramL2 + localL2;
}
yield nested2(0);
}
Iterable t1 = nested1(0);
Iterator it11 = t1.iterator;
Iterator it12 = t1.iterator;
it11.moveNext();
it12.moveNext();
Iterable t2 = it11.current;
Iterable t3 = it12.current;
Iterator it21 = t2.iterator;
Iterator it22 = t2.iterator;
Iterator it31 = t3.iterator;
Iterator it32 = t3.iterator;
it21.moveNext();
it22.moveNext();
it31.moveNext();
it32.moveNext();
Expect.equals(11111120, it21.current);
Expect.equals(11222120, it22.current);
Expect.equals(11113120, it31.current);
Expect.equals(11224120, it32.current);
}
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
testCapturingInSyncStar(); //# capturing: ok
}