Support TemplateTemplateParmDecl for PCH.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107884 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/AST/DeclTemplate.h b/include/clang/AST/DeclTemplate.h
index 16646b00776326b9f1ec9050b1cc267025ea3c21..1fa596cccb244fdf28f71161445f44d4bae084d9 100644 (file)
--- a/include/clang/AST/DeclTemplate.h
+++ b/include/clang/AST/DeclTemplate.h
@@ -908,6 +908,9 @@ public:
   static bool classof(const Decl *D) { return classofKind(D->getKind()); }
   static bool classof(const TemplateTemplateParmDecl *D) { return true; }
   static bool classofKind(Kind K) { return K == TemplateTemplateParm; }
+
+  friend class PCHDeclReader;
+  friend class PCHDeclWriter;
 };
 
 /// \brief Represents a class template specialization, which refers to

diff --git a/lib/Frontend/PCHReaderDecl.cpp b/lib/Frontend/PCHReaderDecl.cpp
index e392cd156e2d3a840720ff7d7a30a77f7fc4d76b..6d363ae27eb71a82dfc53e50419d4092ba753d40 100644 (file)
--- a/lib/Frontend/PCHReaderDecl.cpp
+++ b/lib/Frontend/PCHReaderDecl.cpp
@@ -856,7 +856,8 @@ void PCHDeclReader::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
 void PCHDeclReader::VisitTemplateDecl(TemplateDecl *D) {
   VisitNamedDecl(D);
 
-  NamedDecl *TemplatedDecl = cast<NamedDecl>(Reader.GetDecl(Record[Idx++]));
+  NamedDecl *TemplatedDecl
+    = cast_or_null<NamedDecl>(Reader.GetDecl(Record[Idx++]));
   TemplateParameterList* TemplateParams
       = Reader.ReadTemplateParameterList(Record, Idx); 
   D->init(TemplatedDecl, TemplateParams);
@@ -1020,7 +1021,14 @@ void PCHDeclReader::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
 }
 
 void PCHDeclReader::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
-  assert(false && "cannot read TemplateTemplateParmDecl");
+  VisitTemplateDecl(D);
+  // TemplateParmPosition.
+  D->setDepth(Record[Idx++]);
+  D->setPosition(Record[Idx++]);
+  // Rest of TemplateTemplateParmDecl.
+  TemplateArgumentLoc Arg = Reader.ReadTemplateArgumentLoc(Record, Idx);
+  bool IsInherited = Record[Idx++];
+  D->setDefaultArgument(Arg, IsInherited);
 }
 
 void PCHDeclReader::VisitStaticAssertDecl(StaticAssertDecl *D) {
@@ -1382,7 +1390,7 @@ Decl *PCHReader::ReadDeclRecord(uint64_t Offset, unsigned Index) {
                                         QualType(),0);
     break;
   case pch::DECL_TEMPLATE_TEMPLATE_PARM:
-    assert(false && "cannot read TemplateTemplateParmDecl");
+    D = TemplateTemplateParmDecl::Create(*Context, 0, SourceLocation(),0,0,0,0);
     break;
   case pch::DECL_STATIC_ASSERT:
     assert(false && "cannot read StaticAssertDecl");

diff --git a/lib/Frontend/PCHWriterDecl.cpp b/lib/Frontend/PCHWriterDecl.cpp
index 7c672bdabbbe633b035130d0ebbcf9dac21ff3d0..81cb79226bf66370589253e5523008ea2bc31b48 100644 (file)
--- a/lib/Frontend/PCHWriterDecl.cpp
+++ b/lib/Frontend/PCHWriterDecl.cpp
@@ -963,7 +963,14 @@ void PCHDeclWriter::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
 }
 
 void PCHDeclWriter::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
-  assert(false && "cannot write TemplateTemplateParmDecl");
+  VisitTemplateDecl(D);
+  // TemplateParmPosition.
+  Record.push_back(D->getDepth());
+  Record.push_back(D->getPosition());
+  // Rest of TemplateTemplateParmDecl.
+  Writer.AddTemplateArgumentLoc(D->getDefaultArgument(), Record);
+  Record.push_back(D->defaultArgumentWasInherited());
+  Code = pch::DECL_TEMPLATE_TEMPLATE_PARM;
 }
 
 void PCHDeclWriter::VisitStaticAssertDecl(StaticAssertDecl *D) {