mirror of
https://github.com/dart-lang/sdk
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912005267d
Change-Id: I46be49b2effec3e38a3dc44cd45cfe736f77fa78 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182680 Commit-Queue: Sigmund Cherem <sigmund@google.com> Reviewed-by: Joshua Litt <joshualitt@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com> Reviewed-by: Stephen Adams <sra@google.com>
108 lines
2.4 KiB
Dart
108 lines
2.4 KiB
Dart
// Copyright (c) 2011, 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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// A native method prevents other members from having that name, including
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// fields. However, native fields keep their name. The implication: a getter
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// for the field must be based on the field's name, not the field's jsname.
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import 'native_testing.dart';
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abstract class I {
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int? key;
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}
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@Native("A")
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class A implements I {
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// jsname is 'key'
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void set key(int? unused) native;
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int? get key native;
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int? getKey() => key;
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}
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class B implements I {
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int? key; // jsname is not 'key'
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B([this.key = 222]);
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int? getKey() => key;
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}
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@Native("X")
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class X {
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@JSName('key')
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int native_key_method() native;
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// This should cause B.key to be renamed, but not A.key.
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@JSName('key')
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int key() native;
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}
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A makeA() native;
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X makeX() native;
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void setup() {
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JS('', r"""
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(function(){
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// This code is inside 'setup' and so not accessible from the global scope.
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function A(){ this.key = 111; }
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A.prototype.getKey = function(){return this.key;};
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function X(){}
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X.prototype.key = function(){return 666;};
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self.makeA = function(){return new A()};
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self.makeX = function(){return new X()};
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self.nativeConstructor(A);
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self.nativeConstructor(X);
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})()""");
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applyTestExtensions(['A', 'X']);
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}
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testDynamic() {
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var a = confuse(makeA());
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var b = confuse(new B());
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var x = confuse(makeX());
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Expect.equals(111, a.key);
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Expect.equals(222, b.key);
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Expect.equals(111, a.getKey());
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Expect.equals(222, b.getKey());
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Expect.equals(666, x.native_key_method());
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Expect.equals(666, x.key());
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var fn = x.key;
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Expect.equals(666, fn());
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}
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testPartial() {
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var things = [makeA(), new B(), makeX()];
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I a = things[0] as I;
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I b = things[1] as I;
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// All subtypes of I have a field 'key'. The compiler might be tempted to
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// generate a direct property access, but that will fail since one of the
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// fields is renamed. A getter call is required here.
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Expect.equals(111, a.key);
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Expect.equals(222, b.key);
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}
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testTyped() {
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A a = makeA();
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B b = new B();
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X x = makeX();
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Expect.equals(666, x.native_key_method());
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Expect.equals(111, a.key);
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Expect.equals(222, b.key);
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Expect.equals(111, a.getKey());
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Expect.equals(222, b.getKey());
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}
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main() {
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nativeTesting();
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setup();
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testTyped();
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testPartial();
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testDynamic();
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}
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