1 files changed, 88 insertions, 0 deletions
diff --git a/utils/TableGen/TGSourceMgr.h b/utils/TableGen/TGSourceMgr.h
new file mode 100644
index 0000000..9a61a9b
--- /dev/null
+++ b/utils/TableGen/TGSourceMgr.h
@@ -0,0 +1,88 @@
+//===- TGSourceMgr.h - Manager for Source Buffers & Diagnostics -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the TGSourceMgr class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef TGSOURCEMGR_H
+#define TGSOURCEMGR_H
+
+#include <vector>
+
+namespace llvm {
+  class MemoryBuffer;
+  
+/// FIXME: Make this a struct that is opaque.
+typedef const char *TGLocTy;
+
+/// TGSourceMgr - This owns the files read by tblgen, handles include stacks,
+/// and handles printing of diagnostics.
+class TGSourceMgr {
+  struct SrcBuffer {
+    /// Buffer - The memory buffer for the file.
+    MemoryBuffer *Buffer;
+    
+    /// IncludeLoc - This is the location of the parent include, or null if at
+    /// the top level.
+    TGLocTy IncludeLoc;
+  };
+  
+  /// Buffers - This is all of the buffers that we are reading from.
+  std::vector<SrcBuffer> Buffers;
+  
+  TGSourceMgr(const TGSourceMgr&);    // DO NOT IMPLEMENT
+  void operator=(const TGSourceMgr&); // DO NOT IMPLEMENT
+public:
+  TGSourceMgr() {}
+  ~TGSourceMgr();
+  
+  const SrcBuffer &getBufferInfo(unsigned i) const {
+    assert(i < Buffers.size() && "Invalid Buffer ID!");
+    return Buffers[i];
+  }
+
+  const MemoryBuffer *getMemoryBuffer(unsigned i) const {
+    assert(i < Buffers.size() && "Invalid Buffer ID!");
+    return Buffers[i].Buffer;
+  }
+  
+  TGLocTy getParentIncludeLoc(unsigned i) const {
+    assert(i < Buffers.size() && "Invalid Buffer ID!");
+    return Buffers[i].IncludeLoc;
+  }
+  
+  unsigned AddNewSourceBuffer(MemoryBuffer *F, TGLocTy IncludeLoc) {
+    SrcBuffer NB;
+    NB.Buffer = F;
+    NB.IncludeLoc = IncludeLoc;
+    Buffers.push_back(NB);
+    return Buffers.size()-1;
+  }
+  
+  /// FindBufferContainingLoc - Return the ID of the buffer containing the
+  /// specified location, returning -1 if not found.
+  int FindBufferContainingLoc(TGLocTy Loc) const;
+  
+  /// FindLineNumber - Find the line number for the specified location in the
+  /// specified file.  This is not a fast method.
+  unsigned FindLineNumber(TGLocTy Loc, int BufferID = -1) const;
+  
+  
+  /// PrintError - Emit an error message about the specified location with the
+  /// specified string.
+  void PrintError(TGLocTy ErrorLoc, const std::string &Msg) const;
+  
+private:
+  void PrintIncludeStack(TGLocTy IncludeLoc) const;
+};
+  
+}  // end llvm namespace
+
+#endif