move TGSourceMgr class out of TableGen into libsupport.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73842 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 105 deletions

diff --git a/utils/TableGen/TGSourceMgr.cpp b/utils/TableGen/TGSourceMgr.cpp
deleted file mode 100644
index 42bc75246c..0000000000
--- a/utils/TableGen/TGSourceMgr.cpp
+++ /dev/null
@@ -1,105 +0,0 @@
-//===- TGSourceMgr.cpp - Manager for Source Buffers & Diagnostics ---------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the TGSourceMgr class.
-//
-//===----------------------------------------------------------------------===//
-
-#include "TGSourceMgr.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/raw_ostream.h"
-using namespace llvm;
-
-TGSourceMgr::~TGSourceMgr() {
-  while (!Buffers.empty()) {
-    delete Buffers.back().Buffer;
-    Buffers.pop_back();
-  }
-}
-
-/// FindBufferContainingLoc - Return the ID of the buffer containing the
-/// specified location, returning -1 if not found.
-int TGSourceMgr::FindBufferContainingLoc(TGLoc Loc) const {
-  for (unsigned i = 0, e = Buffers.size(); i != e; ++i)
-    if (Loc.getPointer() >= Buffers[i].Buffer->getBufferStart() &&
-        // Use <= here so that a pointer to the null at the end of the buffer
-        // is included as part of the buffer.
-        Loc.getPointer() <= Buffers[i].Buffer->getBufferEnd())
-      return i;
-  return -1;
-}
-
-/// FindLineNumber - Find the line number for the specified location in the
-/// specified file.  This is not a fast method.
-unsigned TGSourceMgr::FindLineNumber(TGLoc Loc, int BufferID) const {
-  if (BufferID == -1) BufferID = FindBufferContainingLoc(Loc);
-  assert(BufferID != -1 && "Invalid Location!");
-  
-  MemoryBuffer *Buff = getBufferInfo(BufferID).Buffer;
-  
-  // Count the number of \n's between the start of the file and the specified
-  // location.
-  unsigned LineNo = 1;
-  
-  const char *Ptr = Buff->getBufferStart();
-
-  for (; TGLoc::getFromPointer(Ptr) != Loc; ++Ptr)
-    if (*Ptr == '\n') ++LineNo;
-  return LineNo;
-}
-
-void TGSourceMgr::PrintIncludeStack(TGLoc IncludeLoc) const {
-  if (IncludeLoc == TGLoc()) return;  // Top of stack.
-  
-  int CurBuf = FindBufferContainingLoc(IncludeLoc);
-  assert(CurBuf != -1 && "Invalid or unspecified location!");
-
-  PrintIncludeStack(getBufferInfo(CurBuf).IncludeLoc);
-  
-  errs() << "Included from "
-         << getBufferInfo(CurBuf).Buffer->getBufferIdentifier()
-         << ":" << FindLineNumber(IncludeLoc, CurBuf) << ":\n";
-}
-
-
-void TGSourceMgr::PrintError(TGLoc ErrorLoc, const std::string &Msg) const {
-  raw_ostream &OS = errs();
-  
-  // First thing to do: find the current buffer containing the specified
-  // location.
-  int CurBuf = FindBufferContainingLoc(ErrorLoc);
-  assert(CurBuf != -1 && "Invalid or unspecified location!");
-  
-  PrintIncludeStack(getBufferInfo(CurBuf).IncludeLoc);
-  
-  MemoryBuffer *CurMB = getBufferInfo(CurBuf).Buffer;
-  
-  
-  OS << "Parsing " << CurMB->getBufferIdentifier() << ":"
-     << FindLineNumber(ErrorLoc, CurBuf) << ": ";
-  
-  OS << Msg << "\n";
-  
-  // Scan backward to find the start of the line.
-  const char *LineStart = ErrorLoc.getPointer();
-  while (LineStart != CurMB->getBufferStart() && 
-         LineStart[-1] != '\n' && LineStart[-1] != '\r')
-    --LineStart;
-  // Get the end of the line.
-  const char *LineEnd = ErrorLoc.getPointer();
-  while (LineEnd != CurMB->getBufferEnd() && 
-         LineEnd[0] != '\n' && LineEnd[0] != '\r')
-    ++LineEnd;
-  // Print out the line.
-  OS << std::string(LineStart, LineEnd) << "\n";
-  // Print out spaces before the caret.
-  for (const char *Pos = LineStart; Pos != ErrorLoc.getPointer(); ++Pos)
-    OS << (*Pos == '\t' ? '\t' : ' ');
-  OS << "^\n";
-}