[cfe-commits] r122369 - /cfe/trunk/lib/Sema/SemaTemplate.cpp
Douglas Gregor
dgregor at apple.com
Tue Dec 21 14:27:23 PST 2010
Author: dgregor
Date: Tue Dec 21 16:27:23 2010
New Revision: 122369
URL: http://llvm.org/viewvc/llvm-project?rev=122369&view=rev
Log:
Tweak the checking of class template partial specialization arguments
to cope with parameter packs. This is a band-aid I will be
revisiting this section when I implement declaration matching
semantics for variadic templates.
Modified:
cfe/trunk/lib/Sema/SemaTemplate.cpp
Modified: cfe/trunk/lib/Sema/SemaTemplate.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaTemplate.cpp?rev=122369&r1=122368&r2=122369&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaTemplate.cpp (original)
+++ cfe/trunk/lib/Sema/SemaTemplate.cpp Tue Dec 21 16:27:23 2010
@@ -3937,16 +3937,27 @@
// specialization is identical to the implicit argument list of
// the primary template. The caller may need to diagnostic this as
// an error per C++ [temp.class.spec]p9b3.
+ TemplateArgument MirrorArg = ArgList[I];
+ if (MirrorsPrimaryTemplate &&
+ MirrorArg.getKind() == TemplateArgument::Pack) {
+ if (MirrorArg.pack_size() == 1)
+ MirrorArg = *MirrorArg.pack_begin();
+ else
+ MirrorsPrimaryTemplate = false;
+ }
+
if (MirrorsPrimaryTemplate) {
if (TemplateTypeParmDecl *TTP
- = dyn_cast<TemplateTypeParmDecl>(TemplateParams->getParam(I))) {
- if (Context.getCanonicalType(Context.getTypeDeclType(TTP)) !=
- Context.getCanonicalType(ArgList[I].getAsType()))
+ = dyn_cast<TemplateTypeParmDecl>(TemplateParams->getParam(I))) {
+ if (MirrorsPrimaryTemplate &&
+ !Context.hasSameType(Context.getTypeDeclType(TTP),
+ MirrorArg.getAsType()))
MirrorsPrimaryTemplate = false;
} else if (TemplateTemplateParmDecl *TTP
= dyn_cast<TemplateTemplateParmDecl>(
TemplateParams->getParam(I))) {
- TemplateName Name = ArgList[I].getAsTemplate();
+ // FIXME: Variadic templates pack expansion/parameter pack
+ TemplateName Name = MirrorArg.getAsTemplate();
TemplateTemplateParmDecl *ArgDecl
= dyn_cast_or_null<TemplateTemplateParmDecl>(Name.getAsTemplateDecl());
if (!ArgDecl ||
@@ -3964,6 +3975,7 @@
Expr *ArgExpr = ArgList[I].getAsExpr();
if (!ArgExpr) {
+ // FIXME: Variadic templates pack expansion/parameter pack
MirrorsPrimaryTemplate = false;
continue;
}
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