dart-sdk/tests/dart2js/closure_capture2_test.dart
Joshua Litt f9f1ca6171 [dart2js] Create tests/dart2js for nnbd.
Change-Id: Ib8721cf976803d8d1b9d723b7e691e344c768b67
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149881
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Joshua Litt <joshualitt@google.com>
2020-06-09 16:53:15 +00:00

44 lines
871 B
Dart

// Copyright (c) 2012, 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.
import "package:expect/expect.dart";
closure0() {
// f and g will both capture a variable named 'x'. If we use the original
// name in the (shared) box then there will be troubles.
var f;
var g;
{
var x = 499;
f = () {
return x;
};
x++;
}
{
var x = 42;
g = () {
return x;
};
x++;
}
Expect.equals(500, f());
Expect.equals(43, g());
}
closure1() {
// f captures variable $0 which once could yield to troubles with HForeign if
// we did not mangle correctly.
var $1 = 499;
var f = () {
return $1;
};
$1++;
Expect.equals(500, f());
}
main() {
closure0();
closure1();
}