From b152fd247c16d7401f406db42cbb35cd649cdb4b Mon Sep 17 00:00:00 2001
From: Reid Spencer <rspencer@reidspencer.com>
Date: Tue, 22 Aug 2006 16:10:12 +0000
Subject: [PATCH] For PR797: Adjust the use of MappedFile to its new
 non-throwing interface. We just propagate the exceptions if an error occurs.
 This will get cleaned up later, incrementally.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29820 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Bytecode/Reader/ReaderWrappers.cpp | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/lib/Bytecode/Reader/ReaderWrappers.cpp b/lib/Bytecode/Reader/ReaderWrappers.cpp
index b9e7cd29aac..17671593925 100644
--- a/lib/Bytecode/Reader/ReaderWrappers.cpp
+++ b/lib/Bytecode/Reader/ReaderWrappers.cpp
@@ -48,11 +48,17 @@ namespace {
 BytecodeFileReader::BytecodeFileReader(const std::string &Filename,
                                        llvm::BytecodeHandler* H )
   : BytecodeReader(H)
-  , mapFile( sys::Path(Filename))
+  , mapFile()
 {
-  mapFile.map();
+  std::string ErrMsg;
+  if (mapFile.open(sys::Path(Filename), sys::MappedFile::READ_ACCESS, &ErrMsg))
+    throw ErrMsg;
+  if (!mapFile.map(&ErrMsg))
+    throw ErrMsg;
   unsigned char* buffer = reinterpret_cast<unsigned char*>(mapFile.base());
-  ParseBytecode(buffer, mapFile.size(), Filename);
+  if (ParseBytecode(buffer, mapFile.size(), Filename, &ErrMsg)) {
+    throw ErrMsg;
+  }
 }
 
 //===----------------------------------------------------------------------===//
@@ -98,11 +104,10 @@ BytecodeBufferReader::BytecodeBufferReader(const unsigned char *Buf,
     ParseBegin = Buffer = Buf;
     MustDelete = false;
   }
-  try {
-    ParseBytecode(ParseBegin, Length, ModuleID);
-  } catch (...) {
+  std::string ErrMsg;
+  if (ParseBytecode(ParseBegin, Length, ModuleID, &ErrMsg)) {
     if (MustDelete) delete [] Buffer;
-    throw;
+    throw ErrMsg;
   }
 }
 
@@ -149,7 +154,10 @@ BytecodeStdinReader::BytecodeStdinReader( BytecodeHandler* H )
     throw std::string("Standard Input empty!");
 
   FileBuf = &FileData[0];
-  ParseBytecode(FileBuf, FileData.size(), "<stdin>");
+  std::string ErrMsg;
+  if (ParseBytecode(FileBuf, FileData.size(), "<stdin>", &ErrMsg)) {
+    throw ErrMsg;
+  }
 }
 
 //===----------------------------------------------------------------------===//
-- 
2.34.1