dart-sdk/tests/dart2js_2/js_array_removeLast_error_test.dart
Joshua Litt 05ca544f15 [dart2js] Move tests/compiler/dart2js_extra to tests/dart2js_2.
Change-Id: Iaa0ca2b4f2d1b15f79ddca37834d3ed2497bc068
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149242
Commit-Queue: Joshua Litt <joshualitt@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
2020-06-03 15:15:30 +00:00

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901 B
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.
// @dart = 2.7
// Test that optimized JSArray removeLast() calls generate the same error as
// dynamically dispatched calls.
import 'package:expect/expect.dart';
@pragma('dart2js:noInline')
@pragma('dart2js:assumeDynamic')
confuse(x) => x;
Error getError(action()) {
try {
action();
Expect.fail('must throw');
} catch (e) {
return e;
}
}
main() {
fault1() {
return confuse([]).removeLast();
}
fault2() {
var a = [];
while (confuse(false)) a.add(1);
// This one should be optimized since [a] is a growable JSArray.
return a.removeLast();
}
var e1 = getError(fault1);
var e2 = getError(fault2);
Expect.equals('$e1', '$e2');
}