Florian Schneider
e25461c151
If there is no override of noSuchMethod in any class, we can propagate the receiver type downwards from calls that call a unique selector. This speeds up dart2js by around 3%, a particle simulation benchmark by around 10%. BUG= R=rmacnak@google.com Review URL: https://codereview.chromium.org/2412653002 .
35 lines
715 B
Dart
35 lines
715 B
Dart
// Copyright (c) 2016, 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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import "package:expect/expect.dart";
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class A {
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_unique_method() => "foo";
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bar() => "A";
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}
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class B {
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noSuchMethod(invocation) => "nsm";
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bar() => "B";
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}
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confuse(x) {
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try {
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throw x;
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} catch (e) {
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return e;
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}
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return null;
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}
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main() {
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var a = confuse(new A());
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Expect.equals("foo", a._unique_method());
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Expect.equals("A", a.bar());
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var b = confuse(new B());
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Expect.equals("nsm", b._unique_method());
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Expect.equals("B", b.bar()); // Don't propagate type A to b.
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}
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