remove llvm-db: it is completely broken and if anyone wants to do a debugger,

[oota-llvm.git] / lib / Debugger / SourceFile.cpp

diff --git a/lib/Debugger/SourceFile.cpp b/lib/Debugger/SourceFile.cpp
deleted file mode 100644 (file)
index 03c60f8..0000000
--- a/lib/Debugger/SourceFile.cpp
+++ /dev/null
@@ -1,82 +0,0 @@
-//===-- SourceFile.cpp - SourceFile implementation for the debugger -------===//
-//
-//                     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 SourceFile class for the LLVM debugger.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Debugger/SourceFile.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include <cassert>
-using namespace llvm;
-
-static const char EmptyFile = 0;
-
-SourceFile::SourceFile(const std::string &fn, const GlobalVariable *Desc)
-  : Filename(fn), Descriptor(Desc) {
-  File.reset(MemoryBuffer::getFileOrSTDIN(fn));
-    
-  // On error, return an empty buffer.
-  if (File == 0)
-    File.reset(MemoryBuffer::getMemBuffer(&EmptyFile, &EmptyFile));
-}
-
-SourceFile::~SourceFile() {
-}
-
-
-/// calculateLineOffsets - Compute the LineOffset vector for the current file.
-///
-void SourceFile::calculateLineOffsets() const {
-  assert(LineOffset.empty() && "Line offsets already computed!");
-  const char *BufPtr = File->getBufferStart();
-  const char *FileStart = BufPtr;
-  const char *FileEnd = File->getBufferEnd();
-  do {
-    LineOffset.push_back(BufPtr-FileStart);
-
-    // Scan until we get to a newline.
-    while (BufPtr != FileEnd && *BufPtr != '\n' && *BufPtr != '\r')
-      ++BufPtr;
-
-    if (BufPtr != FileEnd) {
-      ++BufPtr;               // Skip over the \n or \r
-      if (BufPtr[-1] == '\r' && BufPtr != FileEnd && BufPtr[0] == '\n')
-        ++BufPtr;   // Skip over dos/windows style \r\n's
-    }
-  } while (BufPtr != FileEnd);
-}
-
-
-/// getSourceLine - Given a line number, return the start and end of the line
-/// in the file.  If the line number is invalid, or if the file could not be
-/// loaded, null pointers are returned for the start and end of the file. Note
-/// that line numbers start with 0, not 1.
-void SourceFile::getSourceLine(unsigned LineNo, const char *&LineStart,
-                               const char *&LineEnd) const {
-  LineStart = LineEnd = 0;
-  if (LineOffset.empty()) calculateLineOffsets();
-
-  // Asking for an out-of-range line number?
-  if (LineNo >= LineOffset.size()) return;
-
-  // Otherwise, they are asking for a valid line, which we can fulfill.
-  LineStart = File->getBufferStart()+LineOffset[LineNo];
-
-  if (LineNo+1 < LineOffset.size())
-    LineEnd = File->getBufferStart()+LineOffset[LineNo+1];
-  else
-    LineEnd = File->getBufferEnd();
-
-  // If the line ended with a newline, strip it off.
-  while (LineEnd != LineStart && (LineEnd[-1] == '\n' || LineEnd[-1] == '\r'))
-    --LineEnd;
-
-  assert(LineEnd >= LineStart && "We somehow got our pointers swizzled!");
-}