Re: pass function to C API

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.
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