blob: f590001d6dbece3a4ce023f0e1077ebd9be26393 [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.
import "native_testing.dart";
// Test that native methods with unnamed* optional arguments are called with the
// number of arguments in the call site. This is necessary because native
// methods can dispatch on the number of arguments. Passing null or undefined
// as the last argument is not the same as passing one fewer argument.
//
// * Optional positional arguments are passed in the correct position, so
// require preceding arguments to be passed.
@Native("A")
class A {
int foo(int x) native;
}
@Native("B")
class B {
int foo([x, y, z]) native;
}
// TODO(sra): Add a case where the parameters have default values. Wait until
// dart:html need non-null default values.
A makeA() native;
B makeB() native;
void setup() {
JS('', r"""
(function(){
function A() {}
A.prototype.foo = function () { return arguments.length; };
function B() {}
B.prototype.foo = function () { return arguments.length; };
makeA = function(){return new A()};
makeB = function(){return new B()};
self.nativeConstructor(A);
self.nativeConstructor(B);
})()""");
}
testDynamicContext() {
var a = confuse(makeA());
var b = confuse(makeB());
Expect.throws(() => a.foo());
Expect.equals(1, a.foo(10));
Expect.throws(() => a.foo(10, 20));
Expect.throws(() => a.foo(10, 20, 30));
Expect.equals(0, b.foo());
Expect.equals(1, b.foo(10));
Expect.equals(2, b.foo(10, 20));
Expect.equals(3, b.foo(10, 20, 30));
Expect.throws(() => b.foo(10, 20, 30, 40));
}
testStaticContext() {
A a = makeA();
B b = makeB();
Expect.throws(() => (a as dynamic).foo());
Expect.equals(1, a.foo(10));
Expect.throws(() => (a as dynamic).foo(10, 20));
Expect.throws(() => (a as dynamic).foo(10, 20, 30));
Expect.equals(0, b.foo());
Expect.equals(1, b.foo(10));
Expect.equals(2, b.foo(10, 20));
Expect.equals(3, b.foo(10, 20, 30));
Expect.throws(() => (b as dynamic).foo(10, 20, 30, 40));
}
main() {
nativeTesting();
setup();
testDynamicContext();
testStaticContext();
}