[ptr-traits] Move a class definition up to the top of this header so it

can be referenced as part of a PointerIntPair.

This is part of a series of patches to allow LLVM to check for complete
pointee types when computing its pointer traits. This is absolutely
necessary to get correct (or reproducible) results for things like how
many low bits are guaranteed to be zero.

llvm-svn: 256613

1 files changed, 24 insertions, 25 deletions

diff --git a/clang/include/clang/Analysis/ProgramPoint.h b/clang/include/clang/Analysis/ProgramPoint.h
index f87271550c2..6d816fd733e 100644
--- a/clang/include/clang/Analysis/ProgramPoint.h
+++ b/clang/include/clang/Analysis/ProgramPoint.h
@@ -33,8 +33,31 @@ namespace clang {
 class AnalysisDeclContext;
 class FunctionDecl;
 class LocationContext;
-class ProgramPointTag;
   
+/// ProgramPoints can be "tagged" as representing points specific to a given
+/// analysis entity.  Tags are abstract annotations, with an associated
+/// description and potentially other information.
+class ProgramPointTag {
+public:
+  ProgramPointTag(void *tagKind = nullptr) : TagKind(tagKind) {}
+  virtual ~ProgramPointTag();
+  virtual StringRef getTagDescription() const = 0;    
+
+protected:
+  /// Used to implement 'isKind' in subclasses.
+  const void *getTagKind() { return TagKind; }
+  
+private:
+  const void *TagKind;
+};
+
+class SimpleProgramPointTag : public ProgramPointTag {
+  std::string Desc;
+public:
+  SimpleProgramPointTag(StringRef MsgProvider, StringRef Msg);
+  StringRef getTagDescription() const override;
+};
+
 class ProgramPoint {
 public:
   enum Kind { BlockEdgeKind,
@@ -643,30 +666,6 @@ private:
   }
 };
 
-/// ProgramPoints can be "tagged" as representing points specific to a given
-/// analysis entity.  Tags are abstract annotations, with an associated
-/// description and potentially other information.
-class ProgramPointTag {
-public:
-  ProgramPointTag(void *tagKind = nullptr) : TagKind(tagKind) {}
-  virtual ~ProgramPointTag();
-  virtual StringRef getTagDescription() const = 0;    
-
-protected:
-  /// Used to implement 'isKind' in subclasses.
-  const void *getTagKind() { return TagKind; }
-  
-private:
-  const void *TagKind;
-};
-
-class SimpleProgramPointTag : public ProgramPointTag {
-  std::string Desc;
-public:
-  SimpleProgramPointTag(StringRef MsgProvider, StringRef Msg);
-  StringRef getTagDescription() const override;
-};
-
 } // end namespace clang