Move FunctionDecl::TemplateSpecializationInfo out into its own class,

FunctionTemplateSpecializationInfo, in DeclTemplate.h. No functionality change.

llvm-svn: 74431

clang/include/clang/AST/Decl.h

@@ -26,6 +26,7 @@ class Stmt;
 class CompoundStmt;
 class StringLiteral;
 class TemplateArgumentList;
+class FunctionTemplateSpecializationInfo;
   
 /// TranslationUnitDecl - The top declaration context.
 class TranslationUnitDecl : public Decl, public DeclContext {
@@ -621,15 +622,8 @@ public:
   enum StorageClass {
     None, Extern, Static, PrivateExtern
   };
-private:
-  /// \brief Provides information about a function template specialization, 
-  /// which is a FunctionDecl that has been explicitly specialization or
-  /// instantiated from a function template.
-  struct TemplateSpecializationInfo {
-    FunctionTemplateDecl *Template;
-    const TemplateArgumentList *TemplateArguments;
-  };
   
+private:  
   /// ParamInfo - new[]'d array of pointers to VarDecls for the formal
   /// parameters of this function.  This is null if a prototype or if there are
   /// no formals.
@@ -684,7 +678,8 @@ private:
   /// the template being specialized and the template arguments involved in 
   /// that specialization.
   llvm::PointerUnion3<FunctionTemplateDecl*, FunctionDecl*,
-                      TemplateSpecializationInfo*> TemplateOrSpecialization;
+                      FunctionTemplateSpecializationInfo*>
+    TemplateOrSpecialization;
 
 protected:
   FunctionDecl(Kind DK, DeclContext *DC, SourceLocation L,
@@ -940,27 +935,14 @@ public:
   ///
   /// If this function declaration is not a function template specialization,
   /// returns NULL.
-  FunctionTemplateDecl *getPrimaryTemplate() const {
-    if (TemplateSpecializationInfo *Info 
-          = TemplateOrSpecialization.dyn_cast<TemplateSpecializationInfo*>()) {
-      return Info->Template;
-    }
-    return 0;
-  }
+  FunctionTemplateDecl *getPrimaryTemplate() const;
   
   /// \brief Retrieve the template arguments used to produce this function
   /// template specialization from the primary template.
   ///
   /// If this function declaration is not a function template specialization,
   /// returns NULL.
-  const TemplateArgumentList *getTemplateSpecializationArgs() const {
-    if (TemplateSpecializationInfo *Info 
-          = TemplateOrSpecialization.dyn_cast<TemplateSpecializationInfo*>()) {
-      return Info->TemplateArguments;
-    }
-    return 0;
-  }
-  
+  const TemplateArgumentList *getTemplateSpecializationArgs() const;  
   
   /// \brief Specify that this function declaration is actually a function
   /// template specialization.

clang/include/clang/AST/DeclTemplate.h

@@ -154,9 +154,34 @@ protected:
   TemplateParameterList* TemplateParams;
 };
  
+/// \brief Provides information about a function template specialization, 
+/// which is a FunctionDecl that has been explicitly specialization or
+/// instantiated from a function template.
+class FunctionTemplateSpecializationInfo {
+public:
+  FunctionTemplateDecl *Template;
+  const TemplateArgumentList *TemplateArguments;
+};
+  
 /// Declaration of a template function.
 class FunctionTemplateDecl : public TemplateDecl {
 protected:
+  /// \brief Data that is common to all of the declarations of a given
+  /// class template.
+  struct Common {
+    /// \brief The class template specializations for this class
+    /// template, including explicit specializations and instantiations.
+    llvm::FoldingSet<ClassTemplateSpecializationDecl> Specializations;
+    
+    /// \brief The class template partial specializations for this class
+    /// template.
+    llvm::FoldingSet<ClassTemplatePartialSpecializationDecl> 
+    PartialSpecializations;
+    
+    /// \brief The injected-class-name type for this class template.
+    QualType InjectedClassNameType;
+  };
+  
   FunctionTemplateDecl(DeclContext *DC, SourceLocation L, DeclarationName Name,
                        TemplateParameterList *Params, NamedDecl *Decl)
     : TemplateDecl(FunctionTemplate, DC, L, Name, Params, Decl) { }

clang/lib/AST/Decl.cpp

@@ -372,8 +372,9 @@ void FunctionDecl::Destroy(ASTContext& C) {
 
   C.Deallocate(ParamInfo);
 
-  if (TemplateSpecializationInfo *Info 
-        = TemplateOrSpecialization.dyn_cast<TemplateSpecializationInfo*>())
+  if (FunctionTemplateSpecializationInfo *Info 
+        = TemplateOrSpecialization
+            .dyn_cast<FunctionTemplateSpecializationInfo*>())
     C.Deallocate(Info);
   
   Decl::Destroy(C);
@@ -572,14 +573,33 @@ OverloadedOperatorKind FunctionDecl::getOverloadedOperator() const {
     return OO_None;
 }
 
+FunctionTemplateDecl *FunctionDecl::getPrimaryTemplate() const {
+  if (FunctionTemplateSpecializationInfo *Info 
+        = TemplateOrSpecialization
+            .dyn_cast<FunctionTemplateSpecializationInfo*>()) {
+    return Info->Template;
+  }
+  return 0;
+}
+
+const TemplateArgumentList *
+FunctionDecl::getTemplateSpecializationArgs() const {
+  if (FunctionTemplateSpecializationInfo *Info 
+      = TemplateOrSpecialization
+      .dyn_cast<FunctionTemplateSpecializationInfo*>()) {
+    return Info->TemplateArguments;
+  }
+  return 0;
+}
+
 void 
 FunctionDecl::setFunctionTemplateSpecialization(ASTContext &Context,
                                                 FunctionTemplateDecl *Template,
                                      const TemplateArgumentList *TemplateArgs) {
-  TemplateSpecializationInfo *Info 
-    = TemplateOrSpecialization.dyn_cast<TemplateSpecializationInfo*>();
+  FunctionTemplateSpecializationInfo *Info 
+    = TemplateOrSpecialization.dyn_cast<FunctionTemplateSpecializationInfo*>();
   if (!Info)
-    Info = new (Context) TemplateSpecializationInfo;
+    Info = new (Context) FunctionTemplateSpecializationInfo;
   
   Info->Template = Template;
   Info->TemplateArguments = TemplateArgs;

clang/lib/CodeGen/CodeGenModule.cpp

@@ -1477,9 +1477,19 @@ void CodeGenModule::EmitTopLevelDecl(Decl *D) {
   if (Diags.hasErrorOccurred())
     return;
 
+  // Ignore dependent declarations.
+  if (D->getDeclContext() && D->getDeclContext()->isDependentContext())
+    return;
+  
   switch (D->getKind()) {
   case Decl::CXXMethod:
   case Decl::Function:
+    // Skip function templates
+    if (cast<FunctionDecl>(D)->getDescribedFunctionTemplate())
+      return;
+      
+    // Fall through
+        
   case Decl::Var:
     EmitGlobal(GlobalDecl(cast<ValueDecl>(D)));
     break;