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authorFrancois Pichet <pichet2000@gmail.com>2011-08-14 03:52:19 +0000
committerFrancois Pichet <pichet2000@gmail.com>2011-08-14 03:52:19 +0000
commitaf0f4d0b2e38c810effc8b024ad2fb6604eec5d3 (patch)
treee02768586a43f2fde43a836af675d9a94a86ad93 /lib/Sema/SemaTemplateInstantiate.cpp
parent57c43a29f5455ba5876f61e726ad622807412785 (diff)
Implement function template specialization at class scope extension in Microsoft mode. A new AST node is introduced: ClassScopeFunctionSpecialization. This node holds a FunctionDecl that is not yet specialized; then during the class template instantiation the ClassScopeFunctionSpecialization will spawn the actual function specialization.
Example: template <class T> class A { public: template <class U> void f(U p) { } template <> void f(int p) { } // <== class scope specialization }; This extension is necessary to parse MSVC standard C++ headers, MFC and ATL code. BTW, with this feature in, clang can parse (-fsyntax-only) all the MSVC 2010 standard header files without any error. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137573 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Sema/SemaTemplateInstantiate.cpp')
-rw-r--r--lib/Sema/SemaTemplateInstantiate.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Sema/SemaTemplateInstantiate.cpp b/lib/Sema/SemaTemplateInstantiate.cpp
index 67e2d871c3..830f06ae20 100644
--- a/lib/Sema/SemaTemplateInstantiate.cpp
+++ b/lib/Sema/SemaTemplateInstantiate.cpp
@@ -98,8 +98,9 @@ Sema::getTemplateInstantiationArgs(NamedDecl *D,
// Add template arguments from a function template specialization.
else if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Ctx)) {
if (!RelativeToPrimary &&
- Function->getTemplateSpecializationKind()
- == TSK_ExplicitSpecialization)
+ (Function->getTemplateSpecializationKind() ==
+ TSK_ExplicitSpecialization &&
+ !Function->getClassScopeSpecializationPattern()))
break;
if (const TemplateArgumentList *TemplateArgs