Robert Nystrom
c959c9aba7
Change-Id: I3f67dd79ff2ee745cc2ea161ce7150630e805c97 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150186 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com>
63 lines
1.4 KiB
Dart
63 lines
1.4 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 that used to optimistically infer the
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// wrong types for fields because of generative constructors being
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// inlined.
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import "package:expect/expect.dart";
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import "../compiler_annotations.dart";
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class A {
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var foo;
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var bar;
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@DontInline()
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A() {
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// Currently defeat inlining by using a closure.
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bar = () => 42;
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foo = 54;
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}
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A.inline();
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}
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main() {
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// Make sure A's constructor is analyzed first by surrounding the
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// body by two allocations.
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new A();
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bar();
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new A();
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}
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class B {
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var bar;
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var closure;
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@DontInline()
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B() {
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// Currently defeat inlining by using a closure.
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closure = () => 42;
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bar = new A().foo;
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}
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}
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@DontInline()
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bar() {
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// Make sure B's constructor is analyzed first by surrounding the
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// body by two allocations.
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new B();
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// Currently defeat inlining by using a closure.
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Expect.throwsNoSuchMethodError(() => new A.inline().foo + 42);
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codegenLast();
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new B();
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}
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@DontInline()
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codegenLast() {
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// This assignment currently defeats simple type inference, but not
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// the optimistic inferrer.
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new A().foo = new B().bar;
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// Currently defeat inlining by using a closure.
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new B().closure = () => 42;
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}
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