Subj : Re: SM: run a script from a native function
To   : Marcello Bastea-Forte <marcello@TEHSPAMcellosoft.com>
From : Brendan Eich <brendan@meer.net>
Date : Thu Jan 08 2004 11:03 am

Marcello Bastea-Forte wrote:

>>> In SpiderMonkey, what's the proper way to call JS_EvaluateScript from 
>>> within a native function (itself invoked by a script)? Do you have to 
>>> do anything to reset the stack frame or context state?
>>
>>
>> Do you want to make something like eval?  If not, just use 
>> JS_EvaluateScript or one of its {UC, ForPrincipals} variants.
> 
> 
> Does that mean I shouldn't be doing the following:

Certainly not.  I was answering a question about JS_EvaluateScript.  My 
answer did not exclude other API entry points from being used together 
to compile and execute (in a word, evaluate).

/be

> ------------------------------------------------------------------------
> JSBool JavaScript::JS_include(JSContext *cx, JSObject *obj, uintN argc, 
> jsval *argv, jsval *rval) {
> 
>     JSString *str = JS_ValueToString(cx, argv[0]);
>     if (!str) return JS_FALSE;
>     
>     JSScript *s = JS_CompileFile(cx, obj, JS_GetStringBytes(str));
>     jsval ret;
>     bool b = JS_ExecuteScript(cx, obj, s, &ret);
>     JS_DestroyScript(cx, s);
> 
>     return b;
> }
> ------------------------------------------------------------------------
> To make an include() function?  (Need to improve it to handle relative 
> directories.)
> 
> Marcello

.