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Revert r160404, "Eliminating the GCC_CAST hack, take two.", for now. 

It crashes mingw32-gcc-4.4.

llvm-svn: 160486
This commit is contained in:
NAKAMURA Takumi 2012-07-19 02:27:55 +00:00
parent b1680655a6
commit 9efaf227d1
1 changed files with 11 additions and 3 deletions
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14
clang/include/clang/AST/RecursiveASTVisitor.h
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@ -464,12 +464,19 @@ template<typename Derived>
bool RecursiveASTVisitor<Derived>::dataTraverseNode(Stmt *S,
bool &EnqueueChildren) {
// The cast for DISPATCH_WALK is needed for older versions of g++, but causes
// problems for MSVC. So we'll skip the cast entirely for MSVC.
#if defined(_MSC_VER)
#define GCC_CAST(CLASS)
#else
#define GCC_CAST(CLASS) (bool (RecursiveASTVisitor::*)(CLASS*))
#endif
// Dispatch to the corresponding WalkUpFrom* function only if the derived
// class didn't override Traverse* (and thus the traversal is trivial).
#define DISPATCH_WALK(NAME, CLASS, VAR) \
if (bool (Derived::*DerivedFn)(CLASS*) = &Derived::Traverse##NAME) \
if (bool (Derived::*BaseFn)(CLASS*) = &RecursiveASTVisitor::Traverse##NAME)\
if (DerivedFn == BaseFn) \
if (&RecursiveASTVisitor::Traverse##NAME == \
GCC_CAST(CLASS)&Derived::Traverse##NAME) \
return getDerived().WalkUpFrom##NAME(static_cast<CLASS*>(VAR)); \
EnqueueChildren = false; \
return getDerived().Traverse##NAME(static_cast<CLASS*>(VAR));
@ -509,6 +516,7 @@ bool RecursiveASTVisitor<Derived>::dataTraverseNode(Stmt *S,
}
#undef DISPATCH_WALK
#undef GCC_CAST
return true;
}