Nicholas Shahan
c2a879e41d
The existing usage will no longer work as expected once the security measures to prevent native Object prototype pollution are enabled. The recommended replacements are `Object.getPrototypeOf()` and `Object.setPrototypeOf()`. Change-Id: I0617233bd31ccd2afc9f94c527eecb31c5f1b340 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/330047 Reviewed-by: Srujan Gaddam <srujzs@google.com> Commit-Queue: Nicholas Shahan <nshahan@google.com>
89 lines
2.0 KiB
Dart
89 lines
2.0 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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import "native_testing.dart";
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// Test to see if resolving a hidden native class's method interferes with
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// subsequent resolving the subclass's method. This might happen if the
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// superclass caches the method in the prototype, so shadowing the dispatcher
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// stored on Object.prototype.
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@Native("A")
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class A {
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foo() => 'A.foo ${bar()}';
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bar() => 'A.bar';
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}
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@Native("B")
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class B extends A {
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bar() => 'B.bar';
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}
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@Native("C")
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class C extends B {
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foo() => 'C.foo; super.foo = ${super.foo()}';
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bar() => 'C.bar';
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}
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@Native("D")
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class D extends C {
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bar() => 'D.bar';
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}
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makeA() native;
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makeB() native;
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makeC() native;
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makeD() 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 inherits(child, parent) {
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if (Object.getPrototypeOf(child.prototype)) {
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Object.setPrototypeOf(child.prototype, parent.prototype);
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} else {
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function tmp() {};
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tmp.prototype = parent.prototype;
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child.prototype = new tmp();
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child.prototype.constructor = child;
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}
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}
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function A(){}
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function B(){}
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inherits(B, A);
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function C(){}
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inherits(C, B);
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function D(){}
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inherits(D, C);
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self.makeA = function(){return new A()};
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self.makeB = function(){return new B()};
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self.makeC = function(){return new C()};
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self.makeD = function(){return new D()};
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self.nativeConstructor(A);
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self.nativeConstructor(B);
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self.nativeConstructor(C);
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self.nativeConstructor(D);
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})()""");
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applyTestExtensions(['A', 'B', 'C', 'D']);
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}
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main() {
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nativeTesting();
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setup();
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var a = makeA();
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var b = makeB();
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var c = makeC();
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var d = makeD();
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Expect.equals('A.foo A.bar', a.foo());
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Expect.equals('A.foo B.bar', b.foo());
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Expect.equals('C.foo; super.foo = A.foo C.bar', c.foo());
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Expect.equals('C.foo; super.foo = A.foo D.bar', d.foo());
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}
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