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Enhance MemoryBuffer to return error messages in strings if they occur.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36899 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2007-05-06 23:32:36 +00:00
parent c57ed8b298
commit 5499da8833
2 changed files with 25 additions and 9 deletions
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16
include/llvm/Support/MemoryBuffer.h
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@ -15,6 +15,7 @@
#define LLVM_SUPPORT_MEMORYBUFFER_H
#include "llvm/Support/DataTypes.h"
#include <string>
namespace llvm {
@ -52,6 +53,7 @@ public:
/// specified, this means that the client knows that the file exists and that
/// it has the specified size.
static MemoryBuffer *getFile(const char *FilenameStart, unsigned FnSize,
std::string *ErrStr = 0,
int64_t FileSize = -1);
/// getMemBuffer - Open the specified memory range as a MemoryBuffer. Note
@ -79,14 +81,24 @@ public:
/// getFileOrSTDIN - Open the specified file as a MemoryBuffer, or open stdin
/// if the Filename is "-".
/// if the Filename is "-". If an error occurs, this returns null and fills
/// in *ErrStr with a reason.
static MemoryBuffer *getFileOrSTDIN(const char *FilenameStart,unsigned FnSize,
std::string *ErrStr = 0,
int64_t FileSize = -1) {
if (FnSize == 1 && FilenameStart[0] == '-')
return getSTDIN();
return getFile(FilenameStart, FnSize, FileSize);
return getFile(FilenameStart, FnSize, ErrStr, FileSize);
}
/// getFileOrSTDIN - Open the specified file as a MemoryBuffer, or open stdin
/// if the Filename is "-". If an error occurs, this returns null and fills
/// in *ErrStr with a reason.
static MemoryBuffer *getFileOrSTDIN(const std::string &FN,
std::string *ErrStr = 0,
int64_t FileSize = -1) {
return getFileOrSTDIN(&FN[0], FN.size(), ErrStr, FileSize);
}
};
} // end namespace llvm