Re: pass function to C API

On Thursday, April 28, 2016 at 1:44:32 AM UTC+3, Jason Orendorff wrote:
> Yes. First, you have to have a JSContext*. Then, your SPPluginEntryFunc
> would need to get the JavaScript-implemented function from somewhere. Maybe
> it's a global function, and you can get it from your global object using
> JS_GetProperty. Then, you have to convert `caller` and `selector` from C
> strings to JS strings and store them in JS::RootedValues. Then you can use
> JS::Call to call the JS function. Then handle errors appropriately.
> 
> None of this is exactly easy, but all the APIs exist.
> 
> -j
> 
> 
> On Wed, Apr 27, 2016 at 11:13 AM, <[email protected]> wrote:
> 
> > Hello,
> >
> > I have a C API to embed. There, it is some function needing a function as
> > argument:
> >
> >
> > typedef SPAPI SPErr (*SPPluginEntryFunc)( const char *caller, const char
> > *selector, void *message );
> >
> > ...
> >
> > typedef struct SPPluginsSuite {
> > ...
> >         SPAPI SPErr (*GetPluginHostEntry)( SPPluginRef plugin,
> > SPPluginEntryFunc *host );
> > ....
> > }
> >
> > Could this be achieved in SpiderMonkey by passing some javascript
> > implemented function to the C API?
> >
> > Thank you.
> > _______________________________________________
> > dev-tech-js-engine mailing list
> > [email protected]
> > https://lists.mozilla.org/listinfo/dev-tech-js-engine
> >

Hi, thank you.

I have been detained by other issues and I had to postpone this, but I have returned to it now.

My need is to embed scripting in Illustrator, where I should write a function in javascript, then match it against the mentioned c++ signature, transform it as a c++ type reference and pass it to a C function call.

Would this be possible.