dart-sdk/tests/web_2/injected_cast_test.dart
Sigmund Cherem 912005267d [web] rename suite dart2js -> web.
Change-Id: I46be49b2effec3e38a3dc44cd45cfe736f77fa78
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182680
Commit-Queue: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Joshua Litt <joshualitt@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Stephen Adams <sra@google.com>
2021-02-04 23:11:32 +00:00

48 lines
1.1 KiB
Dart

// Copyright (c) 2019, 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 = 2.7
import 'package:expect/expect.dart';
var field;
class Class {
@pragma('dart2js:noInline')
method(int i, int j, int k) {}
}
@pragma('dart2js:noInline')
test1(dynamic c, num n) {
if (c is Class) {
c.method(field = 41, n, field = 42);
}
}
@pragma('dart2js:noInline')
test2(dynamic c, num n) {
if (c is! Class) return;
c.method(field = 86, n, field = 87);
}
main() {
try {
test1(new Class(), 0.5);
field = 123;
field = 123;
} catch (e) {}
// CFE inserts the implicit cast directly on the argument expression, making
// it fail before later arguments are evaluated.
Expect.equals(41, field);
try {
test2(new Class(), 0.5);
field = 321;
field = 321;
} catch (e) {}
// dart2js inserts implicit casts, but does so after evaluating all arguments
// to ensure semantics match what it would be like to check the types when
// entering the callee.
Expect.equals(87, field);
}