Added methods createMainFileID() and createMainFileIDForMemBuffer() to

SourceManager to allow SourceManager to directly intern the MainFileID
when it is created.  Removed setMainFileID().


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45231 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 18 insertions, 3 deletions

diff --git a/include/clang/Basic/SourceManager.h b/include/clang/Basic/SourceManager.h
index 311bea1d3c..2d60404ee9 100644
--- a/include/clang/Basic/SourceManager.h
+++ b/include/clang/Basic/SourceManager.h
@@ -237,9 +237,6 @@ public:
   /// getMainFileID - Returns the FileID of the main source file.
   unsigned getMainFileID() const { return MainFileID; }
   
-  /// setMainFileID - Set the FileID of the main source file.
-  void setMainFileID(unsigned ID) { MainFileID = ID; }
-  
   /// createFileID - Create a new FileID that represents the specified file
   /// being #included from the specified IncludePosition.  This returns 0 on
   /// error and translates NULL into standard input.
@@ -249,6 +246,15 @@ public:
     return createFileID(IR, IncludePos);
   }
   
+  /// createMainFileID - Create the FileID for the main source file.
+  unsigned createMainFileID(const FileEntry *SourceFile,
+                            SourceLocation IncludePos) {
+    
+    assert (MainFileID == 0 && "MainFileID already set!");
+    MainFileID = createFileID(SourceFile,IncludePos);
+    return MainFileID;
+  }
+  
   /// createFileIDForMemBuffer - Create a new FileID that represents the
   /// specified memory buffer.  This does no caching of the buffer and takes
   /// ownership of the MemoryBuffer, so only pass a MemoryBuffer to this once.
@@ -256,6 +262,15 @@ public:
     return createFileID(createMemBufferContentCache(Buffer), SourceLocation());
   }
   
+  /// createMainFileIDForMembuffer - Create the FileID for a memory buffer
+  ///  that will represent the FileID for the main source.  One example
+  ///  of when this would be used is when the main source is read from STDIN.
+  unsigned createMainFileIDForMemBuffer(const llvm::MemoryBuffer *Buffer) {
+    assert (MainFileID == 0 && "MainFileID already set!");
+    MainFileID = createMainFileIDForMemBuffer(Buffer);
+    return MainFileID;
+  }
+  
   /// getInstantiationLoc - Return a new SourceLocation that encodes the fact
   /// that a token at Loc should actually be referenced from InstantiationLoc.
   SourceLocation getInstantiationLoc(SourceLocation Loc,