From 3665e00c87ba3f69f731e5254140ec4cd36807a9 Mon Sep 17 00:00:00 2001
From: John McCall <rjmccall@apple.com>
Date: Fri, 23 Oct 2009 21:14:09 +0000
Subject: [PATCH] Add ASTContext::getTrivialDeclaratorInfo, which initializes a
 new source info block with a single location.

llvm-svn: 84970
---
 clang/include/clang/AST/ASTContext.h | 6 ++++++
 clang/lib/AST/ASTContext.cpp         | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/clang/include/clang/AST/ASTContext.h b/clang/include/clang/AST/ASTContext.h
index 30896c91a143..66e69995c698 100644
--- a/clang/include/clang/AST/ASTContext.h
+++ b/clang/include/clang/AST/ASTContext.h
@@ -1085,6 +1085,12 @@ public:
   /// should be calculated based on the type.
   DeclaratorInfo *CreateDeclaratorInfo(QualType T, unsigned Size = 0);
 
+  /// \brief Allocate a DeclaratorInfo where all locations have been
+  /// initialized to a given location, which defaults to the empty
+  /// location.
+  DeclaratorInfo *
+  getTrivialDeclaratorInfo(QualType T, SourceLocation Loc = SourceLocation());
+
 private:
   ASTContext(const ASTContext&); // DO NOT IMPLEMENT
   void operator=(const ASTContext&); // DO NOT IMPLEMENT
diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
index 7f5fa35842af..3ece8c95a27a 100644
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -955,6 +955,13 @@ DeclaratorInfo *ASTContext::CreateDeclaratorInfo(QualType T,
   return DInfo;
 }
 
+DeclaratorInfo *ASTContext::getTrivialDeclaratorInfo(QualType T,
+                                                     SourceLocation L) {
+  DeclaratorInfo *DI = CreateDeclaratorInfo(T);
+  DI->getTypeLoc().initialize(L);
+  return DI;
+}
+
 /// getInterfaceLayoutImpl - Get or compute information about the
 /// layout of the given interface.
 ///
-- 
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