Jakob Roland Andersen
d687bc6673
Bug: Change-Id: Icb90877af264b2f61c9e32be7420ed748cab601f Reviewed-on: https://dart-review.googlesource.com/5741 Commit-Queue: Jakob Roland Andersen <jakobr@google.com> Reviewed-by: Florian Loitsch <floitsch@google.com>
54 lines
1.6 KiB
Dart
54 lines
1.6 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Regression test for dart2js code generation in checked mode. See
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// last part of https://code.google.com/p/dart/issues/detail?id=9687.
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import "package:expect/expect.dart";
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class A {
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final finalField;
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final otherFinalField;
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A()
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: finalField = 42,
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otherFinalField = 54;
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expectFinalField(arg1, arg2) {
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Expect.equals(arg1, arg2);
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Expect.equals(finalField, arg1);
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}
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expectOtherFinalField(_, arg1, arg2) {
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Expect.equals(arg1, arg2);
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Expect.equals(otherFinalField, arg1);
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}
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}
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var array = [new A()];
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main() {
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// [untypedReceiver] is made so that the compiler does not know
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// what it is.
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var untypedReceiver = array[0];
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// [typedReceiver] is made so that the compiler knows what it is.
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var typedReceiver = new A();
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// Using [: finalField :] twice will make the compiler want to
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// allocate one temporary for it.
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var a = untypedReceiver.expectFinalField(
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typedReceiver.finalField, typedReceiver.finalField);
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// Having a check instruction in between two allocations of
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// temporary variables used to trigger a bug in the compiler.
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int b = a;
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// Using [: otherFinalField :] twice will make the compiler want to
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// allocate one temporary for it. The compiler used to assign the
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// same temporary for [: otherFinalField :] and [: finalField :].
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untypedReceiver.expectOtherFinalField(
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b, typedReceiver.otherFinalField, typedReceiver.otherFinalField);
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}
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