[RFA] Implement DW_TAG_*_parameter_pack

[Jason Merrill]

On 09/18/2009 03:34 PM, Dodji Seketeli wrote:
> Le 18/09/2009 19:57, Jason Merrill a écrit :
>> I don't see why it wouldn't. DECL_PARM_INDEX is set at parse time, so
>> all parms expanded from a single function parameter pack will have the
>> same value.
>
> It makes sense. The attached patch does that.

No, it doesn't; I still see

> +    /* OK, this is a hack. We know that if PARAM_DECL is expanded from PACK,
> +       its name (built with make_ith_pack_parameter_name) is the string "<foo>#N"
> +       where <foo> is the name of PACK and N is a number.
> +       So we just check that naming pattern.  */
> +    if (! strncmp (IDENTIFIER_POINTER (DECL_NAME (param_decl)),
> +		   IDENTIFIER_POINTER (DECL_NAME (pack)),
> +		   IDENTIFIER_LENGTH (DECL_NAME (pack)))
> +	&& (IDENTIFIER_LENGTH (DECL_NAME (pack))
> +	    < IDENTIFIER_LENGTH (DECL_NAME (param_decl)))
> +	&& (IDENTIFIER_POINTER
> +	    (DECL_NAME (param_decl))[IDENTIFIER_LENGTH (DECL_NAME (pack))]
> +	    == '#'))
> +      return true;

Jason