blob: e527e3e2c9b5a111ae055a194b2191d69acc192c [file] [log] [blame]
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// @dart = 2.7
import "native_testing.dart";
// Test to see if resolving a hidden native class's method interferes with
// subsequent resolving the subclass's method. This might happen if the
// superclass caches the method in the prototype, so shadowing the dispatcher
// stored on Object.prototype.
// Version 1: It might be possible to call foo directly.
@Native("A1")
class A1 {
foo() native;
}
@Native("B1")
class B1 extends A1 {
foo() native;
}
makeA1() native;
makeB1() native;
// Version 2: foo needs some kind of trampoline.
@Native("A2")
class A2 {
foo([a = 99]) native;
}
@Native("B2")
class B2 extends A2 {
foo([z = 1000]) native;
}
makeA2() native;
makeB2() native;
void setup() {
JS('', r"""
(function(){
// This code is inside 'setup' and so not accessible from the global scope.
function inherits(child, parent) {
if (child.prototype.__proto__) {
child.prototype.__proto__ = parent.prototype;
} else {
function tmp() {};
tmp.prototype = parent.prototype;
child.prototype = new tmp();
child.prototype.constructor = child;
}
}
function A1(){}
function B1(){}
inherits(B1, A1);
A1.prototype.foo = function(){return 100;};
B1.prototype.foo = function(){return 200;};
self.makeA1 = function(){return new A1()};
self.makeB1 = function(){return new B1()};
function A2(){}
function B2(){}
inherits(B2, A2);
A2.prototype.foo = function(a){return a + 10000;};
B2.prototype.foo = function(z){return z + 20000;};
self.makeA2 = function(){return new A2()};
self.makeB2 = function(){return new B2()};
self.nativeConstructor(A1);
self.nativeConstructor(A2);
self.nativeConstructor(B1);
self.nativeConstructor(B2);
})()""");
applyTestExtensions(['A1', 'A2', 'B1', 'B2']);
}
main() {
nativeTesting();
setup();
var a1 = makeA1();
var b1 = makeB1();
Expect.equals(100, a1.foo());
Expect.equals(200, b1.foo());
var a2 = makeA2();
var b2 = makeB2();
Expect.equals(10000 + 99, a2.foo());
Expect.equals(20000 + 1000, b2.foo());
Expect.equals(10000 + 1, a2.foo(1));
Expect.equals(20000 + 2, b2.foo(2));
bool caught = false;
try {
a1.foo(20);
} catch (ex) {
caught = true;
Expect.isTrue(ex is NoSuchMethodError);
}
Expect.isTrue(caught, 'a1.foo(20) should throw');
caught = false;
try {
dynamic x = 123;
x.foo(20);
} catch (ex) {
caught = true;
Expect.isTrue(ex is NoSuchMethodError);
}
Expect.isTrue(caught, "x.foo(20) should throw");
}