Commit Graph

4 Commits

Author SHA1 Message Date
Richard Smith 77a9c60aa6 Fix a couple of cases where we would fail to correctly parse deduced class template specialization types.
Specifically, we would not properly parse these types within template arguments
(for non-type template parameters), and in tentative parses. Fixing both of
these essentially requires that we parse deduced template specialization types
as types in all contexts, even in template argument lists -- in particular,
tentative parsing may look ahead and annotate a deduced template specialization
type before we figure out that we're actually supposed to treat the tokens as a
template-name. We deal with this by simply permitting deduced template
specialization types when parsing template arguments, and converting them to
template template arguments.

llvm-svn: 326299
2018-02-28 03:02:23 +00:00
Richard Smith 278890f85b [c++1z] Enforce restriction that deduction guide is declared in the same scope as its template.
llvm-svn: 294778
2017-02-10 20:39:58 +00:00
Richard Smith 3817e4a40c [c++1z] Disallow deduction guides with deduced types that don't syntactically match the template being deduced.
llvm-svn: 294773
2017-02-10 19:49:50 +00:00
Richard Smith 3584515018 P0091R3: Implement basic parsing support for C++17 deduction-guides.
We model deduction-guides as functions with a new kind of name that identifies
the template whose deduction they guide; the bulk of this patch is adding the
new name kind. This gives us a clean way to attach an extensible list of guides
to a class template in a way that doesn't require any special handling in AST
files etc (and we're going to need these functions we come to performing
deduction).

llvm-svn: 294266
2017-02-07 01:37:30 +00:00