[webkit-dev] js binding: function argument type checking

Sam Weinig sam.weinig at gmail.com
Wed Aug 11 22:37:06 PDT 2010


On Wed, Aug 11, 2010 at 10:29 PM, Cedric Vivier <cedricv at neonux.com> wrote:

> On Thu, Aug 12, 2010 at 13:26, Sam Weinig <sam.weinig at gmail.com> wrote:
>
>> For this specific case, it seems like you could easily check for a null
>> WebGLProgram* in WebGLRenderingContext::useProgram and set the
>> ExceptionCode.
>
>
> Nope, null is a valid argument, it bounds to the initial program, which
> means nothing will be drawn with WebGL.
> Certainly not the expected behavior when one pass the wrong type to the
> argument like Zhenyao pointed out, therefore throwing TypeError really makes
> sense here (and elsewhere with WebGL API).
>
>
Ok, in that case, it seems like you need to do it in the bindings for this.
I would prefer not making a sweeping change at this time, and instead
keeping the changes just to places where the extra checking is necessary due
to ambiguity (as in this useProgram case).

-Sam
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