You mean I don't have to this any more? :-)
struct Compiler
{
// Compact, thread-safe way to compile a script and capture the
line number
// of the compilation error, if any. Abuses JavaScript Integer
class to
// tunnel a pointer through to the callback. Since v8::Integer can
contain
// 64-bit values, this should be safe everywhere. Yes, it's true;
I am
// pure evil, but only inside these curly braces.
Local <Script> operator ( ) (Handle <String> source, Handle
<Value>
fileName, int & lineNumber)
{
Local <Integer> lineNumberJS (Integer::New (ptrdiff_t
(&lineNumber)));
V8::AddMessageListener (CaptureLineNumber,lineNumberJS);
Local <Script> script (Script::Compile (source,
fileName));
V8::RemoveMessageListeners (CaptureLineNumber);
return script;
}
private :
static void CaptureLineNumber (Handle <Message> message, Handle
<Value> value)
{
int * lineNumber ((int*) value->ToInteger ( )->Value (
));
*lineNumber = message->GetLineNumber ( );
}
};
On Tue, Sep 9, 2008 at 11:54 PM, Christian Plesner Hansen
<[EMAIL PROTECTED]> wrote:
>
> You can now get line numbers directly from the TryCatch; see the shell
> sample for an example of how to use this.
>
> On Sep 4, 9:25 pm, "Christian Plesner Hansen"
> <[EMAIL PROTECTED]> wrote:
>> I can't test this but as far as I can see from the code that should be
>> a safe assumption. You may need to SetVerbose on the TryCatch for
>> this to work properly, otherwise I think the message callback will not
>> be called.
>>
>> On Thu, Sep 4, 2008 at 9:11 PM, Bryan White <[EMAIL PROTECTED]> wrote:
>>
>> >> Yes, you can store the Message object in a in a global variable if you
>> >> hold it in a Persistent handle.
>>
>> > That what not my concern. I was asking if it was reasonable to assume
>> > in the TryCatch handler that the most recent call of the
>> > MessageCallback was pertinent to the error.
>>
>> > --
>> > Bryan White
> >
>
--
Pete Gontier
http://pete.gontier.org/
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