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// 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
// Simple test program for sync* generator functions.
import "package:expect/expect.dart";
import "dart:async";
var sync = "topLevelSync";
var async = "topLevelAync";
var await = "topLevelAwait";
var yield = "topLevelYield";
test01() sync* {
var yield = 0; // //# 01: syntax error
var await = 0; // //# 02: syntax error
bool yield() => false; //# 04: syntax error
bool await() => false; //# 05: syntax error
var x1 = sync;
var x3 = await; // //# 08: syntax error
var x4 = await 55; // //# 09: compile-time error
var x4 = yield; // //# 10: syntax error
var stream = new Stream.fromIterable([1, 2, 3]);
await for (var e in stream) print(e); // //# 11: compile-time error
}
test02() sync* {
yield 12321;
return null; // //# 20: compile-time error
}
test03() sync* => null; // //# 30: syntax error
get test04 sync* => null; // //# 40: syntax error
set test04(a) sync* { print(a); } // //# 41: compile-time error
class K {
K() sync* {} // //# 50: compile-time error
get nix sync* {}
get garnix sync* => null; // //# 51: syntax error
set etwas(var z) sync* { } // //# 52: compile-time error
sync() sync* {
yield sync; // Yields a tear-off of the sync() method.
}
}
main() {
var x;
x = test01();
Expect.equals("()", x.toString());
x = test02();
test03(); //# 30: continued
Expect.equals("(12321)", x.toString());
x = test04; // //# 40: continued
test04 = x; // //# 41: continued
x = new K();
print(x.garnix); //# 51: continued
x.etwas = null; //# 52: continued
print(x.sync().toList());
Expect.equals(1, x.sync().length);
// Expect.isTrue(x.sync().single is Function);
}