[cfe-dev] Repeated NNS in Elaborated types?

[Douglas Gregor]

On Mar 2, 2011, at 3:22 PM, Enea Zaffanella wrote:

> Il 02/03/2011 18:26, Douglas Gregor ha scritto:
>> 
>> On Mar 2, 2011, at 8:44 AM, Enea Zaffanella wrote:
> [...]
>>> Does this sound as a reasonable approach?
>> 
>> 
>> Good find. I hadn't realized that this duplication actually occurred
>> in our ASTs.
>> 
>> However, I suggest that we take the opposite approach: when we see
>> that we're building a TemplateSpecializationType with a
>> QualifiedTemplateName, map that QTN down to the underlying template
>> name.
> 
> We had a try on this, but we start suspecting that we have not enough
> confidence with this portion of clang code, which also seems to be
> changing very quickly. It is unclear to us, for instance, whether a QTN
> can be mapped to a simple template name without breaking the existing
> invariants. So, if you have a clearer picture of what needs to be done,
> then your help will be greatly appreciated. On our side, we will keep
> checking the accuracy of source location info and provide all feedback
> we can.

r126946 is the easy way to do this, at least until we can do the more significant refactoring to introduce TypeTemplateDecl.

	- Doug