Move identification of memory setting and copying functions (memset,

memcmp, strncmp,..) out of Sema and into FunctionDecl so that the logic
could be reused in the analyzer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148142 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 21 insertions, 0 deletions

diff --git a/include/clang/AST/Decl.h b/include/clang/AST/Decl.h
index 3b04c25ce5..7e9e9bfb3a 100644
--- a/include/clang/AST/Decl.h
+++ b/include/clang/AST/Decl.h
@@ -1968,6 +1968,27 @@ public:
   /// definition of a member function.
   virtual bool isOutOfLine() const;
 
+  /// \brief Enumeration used to identify memory setting or copying functions
+  /// identified by getMemoryFunctionKind().
+  enum MemoryFunctionKind {
+    MFK_Memset,
+    MFK_Memcpy,
+    MFK_Memmove,
+    MFK_Memcmp,
+    MFK_Strncpy,
+    MFK_Strncmp,
+    MFK_Strncasecmp,
+    MFK_Strncat,
+    MFK_Strndup,
+    MFK_Strlcpy,
+    MFK_Strlcat,
+    MFK_Invalid
+  };
+
+  /// \brief If the given function is a memory copy or setting function, return
+  /// it's kind. If the function is not a memory function, returns MFK_Invalid.
+  MemoryFunctionKind getMemoryFunctionKind();
+
   // Implement isa/cast/dyncast/etc.
   static bool classof(const Decl *D) { return classofKind(D->getKind()); }
   static bool classof(const FunctionDecl *D) { return true; }