dart-sdk/tests/dart2js_2/inferrer_is_int_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

33 lines
871 B
Dart

// Copyright (c) 2013, 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 dart2js's inferrer and code optimizers know a double
// literal might become an int at runtime.
import "package:expect/expect.dart";
import '../language_2/compiler_annotations.dart';
@DontInline()
callWithStringAndDouble(value) {
() => 42;
if (value is! int) throw new ArgumentError(value);
return 42;
}
@DontInline()
callWithDouble(value) {
() => 42;
if (value is! int) throw new ArgumentError(value);
return 42;
}
main() {
Expect.throws(
() => callWithStringAndDouble('foo'), (e) => e is ArgumentError);
Expect.equals(42, callWithStringAndDouble(0.0));
Expect.equals(42, callWithDouble(0.0));
}