bool
InstantiateTemplateParamRewriteVisitor::VisitTemplateTypeParmTypeLoc(
TemplateTypeParmTypeLoc Loc)
{
const TemplateTypeParmDecl *D = Loc.getDecl();
if (D != ConsumerInstance->TheParameter)
return true;
// I know it's ugly, but seems sometimes Clang injects some extra
// TypeLoc which causes the problem, for example, in the code below,
// template<typename T> class A {
// public:
// template<typename T1> struct C { typedef A other; };
// };
// template<typename T1, typename T2> class B {
// typedef typename T2::template C<int>::other type;
// };
// class B<char, A<char> >;
// the "typedef typename T2 ..." is treated as
// typedef typename T2::template T2::C<int>::other type;
// where the second T2 is injected by Clang
void *Ptr = Loc.getBeginLoc().getPtrEncoding();
if (ConsumerInstance->VisitedLocs.count(Ptr))
return true;
ConsumerInstance->VisitedLocs.insert(Ptr);
SourceRange Range = Loc.getSourceRange();
ConsumerInstance->TheRewriter.ReplaceText(Range,
ConsumerInstance->TheInstantiationString);
return true;
}
bool TemplateInvalidParameterVisitor::VisitTemplateTypeParmTypeLoc(
TemplateTypeParmTypeLoc Loc)
{
const NamedDecl *ND = Loc.getDecl();
if (ConsumerInstance->isBeforeColonColon(Loc))
Parameters.insert(ND);
return true;
}