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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 // Test that native methods with unnamed* optional arguments are called with the | |
| 6 // number of arguments in the call site. This is necessary because native | |
| 7 // methods can dispatch on the number of arguments. Passing null or undefined | |
| 8 // as the last argument is not the same as passing one fewer argument. | |
| 9 // | |
| 10 // * Named arguments are passed in the correct position, so require preceding | |
| 11 // arguments to be passed. | |
| 12 | |
| 13 class A native "*A" { | |
| 14 int foo(int x) native; | |
| 15 } | |
| 16 | |
| 17 class B native "*B" { | |
| 18 int foo([x, y, z]) native; | |
| 19 } | |
| 20 | |
| 21 // TODO(sra): Add a case where the parameters have default values. Wait until | |
| 22 // dart:dom_deprecated / dart:html need non-null default values. | |
| 23 | |
| 24 A makeA() native { return new A(); } | |
| 25 B makeB() native { return new B(); } | |
| 26 | |
| 27 void setup() native """ | |
| 28 function A() {} | |
| 29 A.prototype.foo = function () { return arguments.length; }; | |
| 30 | |
| 31 function B() {} | |
| 32 B.prototype.foo = function () { return arguments.length; }; | |
| 33 | |
| 34 makeA = function(){return new A;}; | |
| 35 makeB = function(){return new B;}; | |
| 36 """; | |
| 37 | |
| 38 | |
| 39 testDynamicContext() { | |
| 40 var things = [makeA(), makeB()]; | |
| 41 var a = things[0]; | |
| 42 var b = things[1]; | |
| 43 | |
| 44 Expect.throws(() => a.foo()); | |
| 45 Expect.equals(1, a.foo(10)); | |
| 46 Expect.throws(() => a.foo(10, 20)); | |
| 47 Expect.throws(() => a.foo(10, 20, 30)); | |
| 48 | |
| 49 Expect.equals(0, b.foo()); | |
| 50 Expect.equals(1, b.foo(10)); | |
| 51 Expect.equals(2, b.foo(10, 20)); | |
| 52 Expect.equals(3, b.foo(10, 20, 30)); | |
| 53 | |
| 54 Expect.equals(1, b.foo(x: 10)); // 1 = x | |
| 55 Expect.equals(2, b.foo(y: 20)); // 2 = x, y | |
| 56 Expect.equals(3, b.foo(z: 30)); // 3 = x, y, z | |
| 57 Expect.throws(() => b.foo(10, 20, 30, 40)); | |
| 58 } | |
| 59 | |
| 60 testStaticContext() { | |
| 61 A a = makeA(); | |
| 62 B b = makeB(); | |
| 63 | |
| 64 Expect.throws(() => a.foo()); | |
| 65 Expect.equals(1, a.foo(10)); | |
| 66 Expect.throws(() => a.foo(10, 20)); | |
| 67 Expect.throws(() => a.foo(10, 20, 30)); | |
| 68 | |
| 69 Expect.equals(0, b.foo()); | |
| 70 Expect.equals(1, b.foo(10)); | |
| 71 Expect.equals(2, b.foo(10, 20)); | |
| 72 Expect.equals(3, b.foo(10, 20, 30)); | |
| 73 | |
| 74 Expect.equals(1, b.foo(x: 10)); | |
| 75 Expect.equals(2, b.foo(y: 20)); | |
| 76 Expect.equals(3, b.foo(z: 30)); | |
| 77 Expect.throws(() => b.foo(10, 20, 30, 40)); | |
| 78 } | |
| 79 | |
| 80 main() { | |
| 81 setup(); | |
| 82 testDynamicContext(); | |
| 83 testStaticContext(); | |
| 84 } | |
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