| // 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. |
| |
| // 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. |
| |
| class A native "*A" { |
| int foo(int x) native; |
| } |
| |
| class B native "*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 { return new A(); } |
| B makeB() native { return new B(); } |
| |
| void setup() native """ |
| 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;}; |
| """; |
| |
| |
| testDynamicContext() { |
| var things = [makeA(), makeB()]; |
| var a = things[0]; |
| var b = things[1]; |
| |
| 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.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)); |
| } |
| |
| main() { |
| setup(); |
| testDynamicContext(); |
| testStaticContext(); |
| } |