Hi,
thank you for the feedback!
The constructor call now works, but the setProperty call does not seem to get
forwarded.
If i do (new SubClass()).someProperty = true; the setProperty method of the
TestClass/parent class is not called.
getProperty is called though.
There does not seem to be any Object.defineProperty API on the C level?
Thank you,
Moritz
On 03 Oct 2014, at 1:37 , Geoffrey Garen <gga...@apple.com> wrote:
> …Yet another option is to insert Function.prototype into the TestClass
> prototype chain.
>
> Geoff
>
>> On Oct 2, 2014, at 4:37 PM, Geoffrey Garen <gga...@apple.com> wrote:
>>
>> You’ll need to manually copy Function.prototype.apply to the TestClass
>> prototype.
>>
>> Another option is “Function.prototype.apply.call(TestClass, this,
>> arguments)”.
>>
>> Geoff
>>
>>> On Oct 2, 2014, at 8:26 AM, Moritz Moeller <mmoel...@mxs.de> wrote:
>>>
>>> Hi,
>>>
>>> I’ve created a javascript class in native code (i.e. JSClassCreate,
>>> JSObjectMakeConstructor etc.) and want to subclass this class in javascript.
>>>
>>> So pretty much:
>>>
>>> JSClassDefinition classDef = kJSClassDefinitionEmpty;
>>> classDef.className = "TestClass";
>>> classDef.getProperty = class_getProperty;
>>> classDef.setProperty = class_setProperty;
>>> JSClassRef classRef = JSClassCreate(&classDef);
>>> JSObjectRef constructor = JSObjectMakeConstructor(ctx, gClassRef,
>>> class_constructor);
>>> JSObjectSetProperty(ctx, JSContextGetGlobalObject(ctx),
>>> JsString("TestClass"), constructor, 0, NULL);
>>>
>>> class_constructor does:
>>> return JSObjectMake(ctx, classRef, NULL);
>>>
>>> This works, so I can do
>>> var test = new TestClass();
>>> test.field = 1;
>>>
>>> and both class_constructor and class_setProperty is called.
>>>
>>> Now I’m trying to subclass the TestClass:
>>> function SubClass()
>>> {
>>> TestClass.apply(this, arguments);
>>> }
>>>
>>> here it already got the problem that TestClass - being a constructor - does
>>> not have .bind() or .apply().
>>>
>>> Does someone know how to get this working?
>>>
>>> Thank you very much,
>>>
>>> Mo
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>>
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