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Do not desugar typedef pointing to compiler 'details'.

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Rather than skipping the desugaring of typedef pointing to anything in std, we
skip the desugaring of typedef pointing to a type starting with an underscore.
This commit is contained in:
Philippe Canal 2013-09-03 00:28:58 -05:00 committed by sftnight
parent 53bf555194
commit 5572e076ac
1 changed files with 11 additions and 4 deletions
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15
lib/Utils/AST.cpp
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@ -469,17 +469,24 @@ namespace utils {
}
}
static bool IsStdDetails(const TagType *tagTy)
static bool IsCompilerDetails(const TagType *tagTy)
{
// Return true if the TagType is a 'details' of the std implementation.
// (For now it means declared in std and __gnu_cxx
const TagDecl *decl = tagTy->getDecl();
assert(decl);
IdentifierInfo *info = decl->getDeclName().getAsIdentifierInfo();
if (info && info->getNameStart()[0] == '_') {
// We have a name starting by _, this is reserve for compiler
// implementation, so let's not desugar to it.
return true;
}
// And let's check if it is in one of the know compiler implementation
// namespace.
const NamedDecl *outer =dyn_cast_or_null<NamedDecl>(decl->getDeclContext());
while (outer && outer->getName().size() ) {
if (//outer->getName().compare("std") == 0 ||
outer->getName().compare("__gnu_cxx") == 0) {
if (outer->getName().compare("__gnu_cxx") == 0) {
return true;
}
outer = dyn_cast_or_null<NamedDecl>(outer->getDeclContext());
@ -517,7 +524,7 @@ namespace utils {
}
const TagType *tagTy = underlyingType->getAs<TagType>();
if (tagTy) {
bool details = IsStdDetails(tagTy);
bool details = IsCompilerDetails(tagTy);
if (details) return true;
}
}