From 8be9d0a9cdce8baa53844e54f6045c4600274269 Mon Sep 17 00:00:00 2001
From: Fariborz Jahanian <fjahanian@apple.com>
Date: Wed, 31 Oct 2007 00:12:35 +0000
Subject: [PATCH] Added new type and bitfield fields in some decl types in
 preparation for objective-c's type qualifiers. Added initialization of
 Class/SEMA types.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43534 91177308-0d34-0410-b5e6-96231b3b80d8
---
 Sema/SemaDecl.cpp               |  4 ++++
 clang.xcodeproj/project.pbxproj |  1 +
 include/clang/AST/Decl.h        | 22 +++++++++++++++++++++-
 include/clang/AST/DeclObjC.h    |  6 ++++++
 4 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/Sema/SemaDecl.cpp b/Sema/SemaDecl.cpp
index 4f59fe1278..861c31e0d7 100644
--- a/Sema/SemaDecl.cpp
+++ b/Sema/SemaDecl.cpp
@@ -1201,6 +1201,8 @@ Sema::DeclTy *Sema::ActOnStartCategoryImplementation(
   // somewhere else. At this time, this is a good enough place to do type
   // encoding of methods and ivars for the rewrite client.
   GetObjcIdType(AtCatImplLoc);
+  // GetObjcClassType(AtCatImplLoc); NYI
+  GetObjcSelType(AtCatImplLoc);
   
   /// TODO: Check that CatName, category name, is not used in another
   // implementation.
@@ -1278,6 +1280,8 @@ Sema::DeclTy *Sema::ActOnStartClassImplementation(
   // somewhere else. At this time, this is a good enough place to do type
   // encoding of methods and ivars for the rewrite client.
   GetObjcIdType(AtClassImplLoc);
+  // GetObjcClassType(AtClassImplLoc); NYI
+  GetObjcSelType(AtClassImplLoc);
   
   return IMPDecl;
 }
diff --git a/clang.xcodeproj/project.pbxproj b/clang.xcodeproj/project.pbxproj
index de41b4628d..fe4cf8d85b 100644
--- a/clang.xcodeproj/project.pbxproj
+++ b/clang.xcodeproj/project.pbxproj
@@ -756,6 +756,7 @@
 		08FB7793FE84155DC02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			buildConfigurationList = 1DEB923508733DC60010E9CD /* Build configuration list for PBXProject "clang" */;
+			compatibilityVersion = "Xcode 2.4";
 			hasScannedForEncodings = 1;
 			mainGroup = 08FB7794FE84155DC02AAC07 /* clang */;
 			projectDirPath = "";
diff --git a/include/clang/AST/Decl.h b/include/clang/AST/Decl.h
index 923ea8a11b..0ed304cab7 100644
--- a/include/clang/AST/Decl.h
+++ b/include/clang/AST/Decl.h
@@ -98,6 +98,19 @@ public:
     IDNS_Ordinary
   };
   
+  /// ObjcDeclQualifier - Qualifier used on types in method declarations
+  /// for remote messaging. They are meant for the arguments though and
+  /// applied to the Decls (ObjcMethodDecl and ParmVarDecl).
+  enum ObjcDeclQualifier {
+    OBJC_TQ_None = 0x0,
+    OBJC_TQ_In = 0x1,
+    OBJC_TQ_Inout = 0x2,
+    OBJC_TQ_Out = 0x4,
+    OBJC_TQ_Bycopy = 0x8,
+    OBJC_TQ_Byref = 0x10,
+    OBJC_TQ_Oneway = 0x20
+  };
+    
 private:
   /// Loc - The location that this decl.
   SourceLocation Loc;
@@ -280,6 +293,8 @@ public:
   //  as static variables declared within a function.
   bool hasGlobalStorage() const { return !hasAutoStorage(); }
   
+  ObjcDeclQualifier getObjcDeclQualifier() const { return objcDeclQualifier; }
+  
   // Implement isa/cast/dyncast/etc.
   static bool classof(const Decl *D) {
     return D->getKind() >= VarFirst && D->getKind() <= VarLast;
@@ -288,11 +303,16 @@ public:
 protected:
   VarDecl(Kind DK, SourceLocation L, IdentifierInfo *Id, QualType T,
           StorageClass SC, ScopedDecl *PrevDecl)
-    : ValueDecl(DK, L, Id, T, PrevDecl), Init(0) { SClass = SC; }
+    : ValueDecl(DK, L, Id, T, PrevDecl), Init(0), 
+      objcDeclQualifier(OBJC_TQ_None) { SClass = SC; }
 private:
   Expr *Init;
   // FIXME: This can be packed into the bitfields in Decl.
   unsigned SClass : 3;
+  /// FIXME: Also can be paced into the bitfields in Decl.
+  /// in, inout, etc.
+  ObjcDeclQualifier objcDeclQualifier : 6;
+  
   friend class StmtIteratorBase;
 };
 
diff --git a/include/clang/AST/DeclObjC.h b/include/clang/AST/DeclObjC.h
index 9cc9e5ae49..0ca98bb6ec 100644
--- a/include/clang/AST/DeclObjC.h
+++ b/include/clang/AST/DeclObjC.h
@@ -218,6 +218,9 @@ private:
   /// @required/@optional
   ImplementationControl DeclImplementation : 2;
   
+  /// in, inout, etc.
+  ObjcDeclQualifier objcDeclQualifier : 6;
+  
   // A unigue name for this method.
   Selector SelName;
   
@@ -241,11 +244,14 @@ public:
                  Decl *PrevDecl = 0)
     : Decl(ObjcMethod, beginLoc),
       IsInstance(isInstance), DeclImplementation(impControl),
+      objcDeclQualifier(OBJC_TQ_None),
       SelName(SelInfo), MethodDeclType(T), 
       ParamInfo(paramInfo), NumMethodParams(numParams),
       MethodAttrs(M), EndLoc(endLoc) {}
   virtual ~ObjcMethodDecl();
   
+  ObjcDeclQualifier getObjcDeclQualifier() const { return objcDeclQualifier; }
+  
   // Location information, modeled after the Stmt API.
   SourceLocation getLocStart() const { return getLocation(); }
   SourceLocation getLocEnd() const { return EndLoc; }
-- 
2.40.0