[cfe-commits] r95991 - in /cfe/trunk: include/clang/AST/Decl.h lib/Frontend/PCHReaderDecl.cpp lib/Frontend/PCHWriterDecl.cpp lib/Sema/SemaType.cpp

[Douglas Gregor]

Author: dgregor
Date: Fri Feb 12 11:40:34 2010
New Revision: 95991

URL: http://llvm.org/viewvc/llvm-project?rev=95991&view=rev
Log:
Improve representation of tag declarations first declared or defined
within the declarator of another declaration, from Enea Zaffanella!

Modified:
    cfe/trunk/include/clang/AST/Decl.h
    cfe/trunk/lib/Frontend/PCHReaderDecl.cpp
    cfe/trunk/lib/Frontend/PCHWriterDecl.cpp
    cfe/trunk/lib/Sema/SemaType.cpp

Modified: cfe/trunk/include/clang/AST/Decl.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/Decl.h?rev=95991&r1=95990&r2=95991&view=diff

==============================================================================
--- cfe/trunk/include/clang/AST/Decl.h (original)
+++ cfe/trunk/include/clang/AST/Decl.h Fri Feb 12 11:40:34 2010
@@ -1511,9 +1511,10 @@
   /// it is a declaration ("struct foo;").
   bool IsDefinition : 1;
 
-  /// IsDefinedInDeclarator - True if this tag declaration is
-  /// syntactically defined in a declarator.
-  bool IsDefinedInDeclarator : 1;
+  /// IsEmbeddedInDeclarator - True if this tag declaration is
+  /// "embedded" (i.e., defined or declared for the very first time)
+  /// in the syntax of a declarator,
+  bool IsEmbeddedInDeclarator : 1;
 
   /// TypedefForAnonDecl - If a TagDecl is anonymous and part of a typedef,
   /// this points to the TypedefDecl. Used for mangling.
@@ -1531,7 +1532,7 @@
     assert((DK != Enum || TK == TK_enum) &&"EnumDecl not matched with TK_enum");
     TagDeclKind = TK;
     IsDefinition = false;
-    IsDefinedInDeclarator = false;
+    IsEmbeddedInDeclarator = false;
     setPreviousDeclaration(PrevDecl);
   }
 
@@ -1565,11 +1566,11 @@
     return IsDefinition;
   }
 
-  bool isDefinedInDeclarator() const {
-    return IsDefinedInDeclarator;
+  bool isEmbeddedInDeclarator() const {
+    return IsEmbeddedInDeclarator;
   }
-  void setDefinedInDeclarator(bool isInDeclarator) {
-    IsDefinedInDeclarator = isInDeclarator;
+  void setEmbeddedInDeclarator(bool isInDeclarator) {
+    IsEmbeddedInDeclarator = isInDeclarator;
   }
 
   /// \brief Whether this declaration declares a type that is

Modified: cfe/trunk/lib/Frontend/PCHReaderDecl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/PCHReaderDecl.cpp?rev=95991&r1=95990&r2=95991&view=diff

==============================================================================
--- cfe/trunk/lib/Frontend/PCHReaderDecl.cpp (original)
+++ cfe/trunk/lib/Frontend/PCHReaderDecl.cpp Fri Feb 12 11:40:34 2010
@@ -117,7 +117,7 @@
                         cast_or_null<TagDecl>(Reader.GetDecl(Record[Idx++])));
   TD->setTagKind((TagDecl::TagKind)Record[Idx++]);
   TD->setDefinition(Record[Idx++]);
-  TD->setDefinedInDeclarator(Record[Idx++]);
+  TD->setEmbeddedInDeclarator(Record[Idx++]);
   TD->setTypedefForAnonDecl(
                     cast_or_null<TypedefDecl>(Reader.GetDecl(Record[Idx++])));
   TD->setRBraceLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));

Modified: cfe/trunk/lib/Frontend/PCHWriterDecl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/PCHWriterDecl.cpp?rev=95991&r1=95990&r2=95991&view=diff

==============================================================================
--- cfe/trunk/lib/Frontend/PCHWriterDecl.cpp (original)
+++ cfe/trunk/lib/Frontend/PCHWriterDecl.cpp Fri Feb 12 11:40:34 2010
@@ -115,7 +115,7 @@
   Writer.AddDeclRef(D->getPreviousDeclaration(), Record);
   Record.push_back((unsigned)D->getTagKind()); // FIXME: stable encoding
   Record.push_back(D->isDefinition());
-  Record.push_back(D->isDefinedInDeclarator());
+  Record.push_back(D->isEmbeddedInDeclarator());
   Writer.AddDeclRef(D->getTypedefForAnonDecl(), Record);
   Writer.AddSourceLocation(D->getRBraceLoc(), Record);
   Writer.AddSourceLocation(D->getTagKeywordLoc(), Record);

Modified: cfe/trunk/lib/Sema/SemaType.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaType.cpp?rev=95991&r1=95990&r2=95991&view=diff

==============================================================================
--- cfe/trunk/lib/Sema/SemaType.cpp (original)
+++ cfe/trunk/lib/Sema/SemaType.cpp Fri Feb 12 11:40:34 2010
@@ -930,7 +930,10 @@
     
     if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) {
       TagDecl* Owned = cast<TagDecl>((Decl *)D.getDeclSpec().getTypeRep());
-      Owned->setDefinedInDeclarator(Owned->isDefinition());
+      // Owned is embedded if it was defined here, or if it is the
+      // very first (i.e., canonical) declaration of this tag type.
+      Owned->setEmbeddedInDeclarator(Owned->isDefinition() ||
+                                     Owned->isCanonicalDecl());
       if (OwnedDecl) *OwnedDecl = Owned;
     }
     break;