You should be checking whether *str* is actually a string with *
str->IsString()*. Or you could try using *str->ToString()*, but I'm not sure
if that performs the type conversion for you (try checking the docs and/or
the source code).

On Sun, Jan 17, 2010 at 8:59 AM, Remi Gillig <[email protected]> wrote:

> Hello,
>
> I have a little problem with this code :
>
> #include <exception>
> #include <string>
> #include <v8/v8.h>
>
> using namespace v8;
>
> class Engine
> {
> private:
>    Persistent<Context> context;
> public:
>    Engine()
>    {
>        context = Context::New();
>    }
>
>    Handle<Value> Run(const std::string& scriptContent)
>    {
>        Context::Scope contextScope(context);
>
>        HandleScope handleScope;
>
>        Handle<String> source = String::New(scriptContent.c_str());
>
>        Handle<Script> script = Script::Compile(source);
>
>        TryCatch trycatch;
>
>        Handle<Value> result = script->Run();
>
>        if (result.IsEmpty())
>        {
>            Handle<Value> exception = trycatch.Exception();
>            String::AsciiValue exceptionString(exception);
>            throw std::exception(*exceptionString);
>        }
>
>        return handleScope.Close(result);
>    }
>
>    ~Engine()
>    {
>        context.Dispose();
>    }
> };
>
> int main(int argc, char* argv[])
> {
>    Engine engine;
>
>    HandleScope handleScope;
>    Handle<Value> str = engine.Run("42;");
>
>    String::AsciiValue ascii(str);
>    printf("%s", *ascii);
>
>    return 0;
> }
>
> I am using Visual Studio 2008 and this code crashes at the conversion
> to AsciiValue and the debugger breaks at line 38 in contexts.cc inside
> Context::builtins() : GlobalObject* object = global();
>
> What I would like to create is a little class which would load
> configuration scripts and keep the context so that I can retrieve the
> config data for my application.
>
> Thanks for any help!
>
> Remi Gillig.
>
> --
> v8-users mailing list
> [email protected]
> http://groups.google.com/group/v8-users
>



-- 
Thank you
Abdulla
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