Re: [Spirit-general] querying and deriving attribute types

[Philipp S. <ph...@gs...>]

On Sun, Oct 31, 2010 at 09:51:21AM -0500, Hartmut Kaiser wrote:
> 
> I think you lost me. Give me a small example, please. 
> 
Certainly! I've attatched a file to, which should contain a compiling
bit of code.

In predicate_grammar I want to reuse the already available parser, by
supplying it as a template parameter, instantiating it as a member.
My first question is, if the manner in which I'm querying the
attribute type is relying on an implementation detail, or may be
considered somewhat stable.

The step I have most trouble is in composite_grammar. I retrieve the
types from the grammars passed in and create rules based on these types.
Of course this still has to match the attribute type supplied from the
outside, which also gives me reason for concerns. I replicated the
attribute type I would expect, both internally and from without, but the
resulting grammar cannot be instantiated. 
It seems to me I am not comprehending something fundamental about
attribute handling. 

thank you for your time
	Philipp


> Regards Hartmut
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