Commit Graph

13 Commits

Author SHA1 Message Date
Mike Stump 11289f4280 Remove tabs, and whitespace cleanups.
llvm-svn: 81346
2009-09-09 15:08:12 +00:00
Douglas Gregor 308047d3a5 Initial stab at implement dependent member references to member
templates, e.g.,
  
  x.template get<T>

We can now parse these, represent them within an UnresolvedMemberExpr
expression, then instantiate that expression node in simple cases.

This allows us to stumble through parsing LLVM's Casting.h.

llvm-svn: 81300
2009-09-09 00:23:06 +00:00
John McCall b2e195a585 Start emitting ElaboratedTypes in C++ mode. Support the effort in various
ways:  remove elab types during desugaring, enhance pretty-printing to allow
tags to be suppressed without suppressing scopes, look through elab types
when associating a typedef name with an anonymous record type.

llvm-svn: 81065
2009-09-05 06:31:47 +00:00
Douglas Gregor 64792e021d Add a wicked little test-case that illustrates what we have to deal
with to properly support member access expressions in templates. This
test is XFAIL'd, because we get it completely wrong, but I've made the
minimal changes to the representation to at least avoid a crash.

llvm-svn: 80856
2009-09-02 23:58:38 +00:00
Douglas Gregor 053f691d5e Improve diagnostics and recovery when the nested-name-specifier of a
qualified name does not actually refer into a class/class
template/class template partial specialization. 

Improve printing of nested-name-specifiers to eliminate redudant
qualifiers. Also, make it possible to output a nested-name-specifier
through a DiagnosticBuilder, although there are relatively few places
that will use this leeway.

llvm-svn: 80056
2009-08-26 00:04:55 +00:00
Chris Lattner c61089a6c2 Key decisions about 'bool' vs '_Bool' to be based on a new flag in langoptions.
This is simple enough, but then I thought it would be nice to make PrintingPolicy
get a LangOptions so that various things can key off "bool" and "C++" independently.
This spiraled out of control.  There are many fixme's, but I think things are slightly
better than they were before.

One thing that can be improved: CFG should probably have an ASTContext pointer in it,
which would simplify its clients.

llvm-svn: 74493
2009-06-30 01:26:17 +00:00
Douglas Gregor 7de5966d76 Create a new PrintingPolicy class, which we pass down through the AST
printing logic to help customize the output. For now, we use this
rather than a special flag to suppress the "struct" when printing
"struct X" and to print the Boolean type as "bool" in C++ but "_Bool"
in C.

llvm-svn: 72590
2009-05-29 20:38:28 +00:00
Douglas Gregor dce2b62b70 Parsing, semantic analysis, and template instantiation for typename
specifiers that terminate in a simple-template-id, e.g.,

  typename MetaFun::template apply<T1, T2>

Also, implement template instantiation for dependent
nested-name-specifiers that involve unresolved identifiers, e.g.,

  typename T::type::type

llvm-svn: 68166
2009-04-01 00:28:59 +00:00
Douglas Gregor b046ffb002 Some cleanup and renaming. No functionality change
llvm-svn: 68140
2009-03-31 20:22:05 +00:00
Douglas Gregor 333489bba3 Initial implementation of parsing, semantic analysis, and template
instantiation for C++ typename-specifiers such as

  typename T::type

The parsing of typename-specifiers is relatively easy thanks to
annotation tokens. When we see the "typename", we parse the
typename-specifier and produce a typename annotation token. There are
only a few places where we need to handle this. We currently parse the
typename-specifier form that terminates in an identifier, but not the
simple-template-id form, e.g.,

  typename T::template apply<U, V>

Parsing of nested-name-specifiers has a similar problem, since at this
point we don't have any representation of a class template
specialization whose template-name is unknown.

Semantic analysis is only partially complete, with some support for
template instantiation that works for simple examples. 

llvm-svn: 67875
2009-03-27 23:10:48 +00:00
Douglas Gregor f21eb49a04 Revamp our representation of C++ nested-name-specifiers. We now have a
uniqued representation that should both save some memory and make it
far easier to properly build canonical types for types involving
dependent nested-name-specifiers, e.g., "typename T::Nested::type".

This approach will greatly simplify the representation of
CXXScopeSpec. That'll be next.

llvm-svn: 67799
2009-03-26 23:50:42 +00:00
Douglas Gregor 1835391025 Generalize printing of nested-name-specifier sequences for use in both
QualifiedNameType and QualifiedDeclRefExpr. We now keep track of the
exact nested-name-specifier spelling for a QualifiedDeclRefExpr, and
use that spelling when printing ASTs. This fixes PR3493.

llvm-svn: 67283
2009-03-19 03:51:16 +00:00
Douglas Gregor 5253768ada Introduce a representation for types that we referred to via a
qualified name, e.g., 

  foo::x

so that we retain the nested-name-specifier as written in the source
code and can reproduce that qualified name when printing the types
back (e.g., in diagnostics). This is PR3493, which won't be complete
until finished the other tasks mentioned near the end of this commit.

The parser's representation of nested-name-specifiers, CXXScopeSpec,
is now a bit fatter, because it needs to contain the scopes that
precede each '::' and keep track of whether the global scoping
operator '::' was at the beginning. For example, we need to keep track
of the leading '::', 'foo', and 'bar' in
 
  ::foo::bar::x

The Action's CXXScopeTy * is no longer a DeclContext *. It's now the
opaque version of the new NestedNameSpecifier, which contains a single
component of a nested-name-specifier (either a DeclContext * or a Type
*, bitmangled). 

The new sugar type QualifiedNameType composes a sequence of
NestedNameSpecifiers with a representation of the type we're actually
referring to. At present, we only build QualifiedNameType nodes within
Sema::getTypeName. This will be extended to other type-constructing
actions (e.g., ActOnClassTemplateId).

Also on the way: QualifiedDeclRefExprs will also store a sequence of
NestedNameSpecifiers, so that we can print out the property
nested-name-specifier. I expect to also use this for handling
dependent names like Fibonacci<I - 1>::value.

llvm-svn: 67265
2009-03-19 00:18:19 +00:00