namespace llvm {
class error_code;
+template<class T> class OwningPtr;
/// MemoryBuffer - This interface provides simple read-only access to a block
/// of memory, and provides simple methods for reading files and standard input
MemoryBuffer &operator=(const MemoryBuffer &); // DO NOT IMPLEMENT
protected:
MemoryBuffer() {}
- void init(const char *BufStart, const char *BufEnd);
+ void init(const char *BufStart, const char *BufEnd,
+ bool RequiresNullTerminator);
public:
virtual ~MemoryBuffer();
/// MemoryBuffer if successful, otherwise returning null. If FileSize is
/// specified, this means that the client knows that the file exists and that
/// it has the specified size.
- static MemoryBuffer *getFile(StringRef Filename, error_code &ec,
- int64_t FileSize = -1);
- static MemoryBuffer *getFile(const char *Filename, error_code &ec,
- int64_t FileSize = -1);
+ static error_code getFile(StringRef Filename, OwningPtr<MemoryBuffer> &result,
+ int64_t FileSize = -1,
+ bool RequiresNullTerminator = true);
+ static error_code getFile(const char *Filename,
+ OwningPtr<MemoryBuffer> &result,
+ int64_t FileSize = -1,
+ bool RequiresNullTerminator = true);
/// getOpenFile - Given an already-open file descriptor, read the file and
- /// return a MemoryBuffer. This takes ownership of the descriptor,
- /// immediately closing it after reading the file.
- static MemoryBuffer *getOpenFile(int FD, const char *Filename,
- error_code &ec,
- int64_t FileSize = -1);
-
+ /// return a MemoryBuffer.
+ static error_code getOpenFile(int FD, const char *Filename,
+ OwningPtr<MemoryBuffer> &result,
+ size_t FileSize = -1,
+ size_t MapSize = -1,
+ off_t Offset = 0,
+ bool RequiresNullTerminator = true);
+
/// getMemBuffer - Open the specified memory range as a MemoryBuffer. Note
/// that InputData must be null terminated.
static MemoryBuffer *getMemBuffer(StringRef InputData,
- StringRef BufferName = "");
+ StringRef BufferName = "",
+ bool RequiresNullTerminator = true);
/// getMemBufferCopy - Open the specified memory range as a MemoryBuffer,
/// copying the contents and taking ownership of it. InputData does not
/// getSTDIN - Read all of stdin into a file buffer, and return it.
/// If an error occurs, this returns null and sets ec.
- static MemoryBuffer *getSTDIN(error_code &ec);
+ static error_code getSTDIN(OwningPtr<MemoryBuffer> &result);
/// getFileOrSTDIN - Open the specified file as a MemoryBuffer, or open stdin
/// if the Filename is "-". If an error occurs, this returns null and sets
/// ec.
- static MemoryBuffer *getFileOrSTDIN(StringRef Filename,
- error_code &ec,
- int64_t FileSize = -1);
- static MemoryBuffer *getFileOrSTDIN(const char *Filename,
- error_code &ec,
- int64_t FileSize = -1);
+ static error_code getFileOrSTDIN(StringRef Filename,
+ OwningPtr<MemoryBuffer> &result,
+ int64_t FileSize = -1);
+ static error_code getFileOrSTDIN(const char *Filename,
+ OwningPtr<MemoryBuffer> &result,
+ int64_t FileSize = -1);
};
} // end namespace llvm