#ifndef LLVM_SUPPORT_MEMORYBUFFER_H
#define LLVM_SUPPORT_MEMORYBUFFER_H
-#include "llvm-c/Core.h"
+#include "llvm-c/Support.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/CBindingWrapping.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/DataTypes.h"
+#include <memory>
+#include <system_error>
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
/// into a memory buffer. In addition to basic access to the characters in the
/// 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 error_code getFile(Twine Filename, OwningPtr<MemoryBuffer> &result,
- int64_t FileSize = -1,
- bool RequiresNullTerminator = true);
+ ///
+ /// \param IsVolatileSize Set to true to indicate that the file size may be
+ /// changing, e.g. when libclang tries to parse while the user is
+ /// editing/updating the file.
+ static std::error_code getFile(Twine Filename,
+ std::unique_ptr<MemoryBuffer> &Result,
+ int64_t FileSize = -1,
+ bool RequiresNullTerminator = true,
+ bool IsVolatileSize = false);
/// Given an already-open file descriptor, map some slice of it into a
/// MemoryBuffer. The slice is specified by an \p Offset and \p MapSize.
/// Since this is in the middle of a file, the buffer is not null terminated.
- static error_code getOpenFileSlice(int FD, const char *Filename,
- OwningPtr<MemoryBuffer> &Result,
- uint64_t MapSize, int64_t Offset);
+ ///
+ /// \param IsVolatileSize Set to true to indicate that the file size may be
+ /// changing, e.g. when libclang tries to parse while the user is
+ /// editing/updating the file.
+ static std::error_code getOpenFileSlice(int FD, const char *Filename,
+ std::unique_ptr<MemoryBuffer> &Result,
+ uint64_t MapSize, int64_t Offset,
+ bool IsVolatileSize = false);
/// Given an already-open file descriptor, read the file and return a
/// MemoryBuffer.
- static error_code getOpenFile(int FD, const char *Filename,
- OwningPtr<MemoryBuffer> &Result,
- uint64_t FileSize,
- bool RequiresNullTerminator = true);
+ ///
+ /// \param IsVolatileSize Set to true to indicate that the file size may be
+ /// changing, e.g. when libclang tries to parse while the user is
+ /// editing/updating the file.
+ static std::error_code getOpenFile(int FD, const char *Filename,
+ std::unique_ptr<MemoryBuffer> &Result,
+ uint64_t FileSize,
+ bool RequiresNullTerminator = true,
+ bool IsVolatileSize = false);
/// getMemBuffer - Open the specified memory range as a MemoryBuffer. Note
/// that InputData must be null terminated if RequiresNullTerminator is true.
/// getSTDIN - Read all of stdin into a file buffer, and return it.
/// If an error occurs, this returns null and sets ec.
- static error_code getSTDIN(OwningPtr<MemoryBuffer> &result);
-
+ static std::error_code getSTDIN(std::unique_ptr<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 error_code getFileOrSTDIN(StringRef Filename,
- OwningPtr<MemoryBuffer> &result,
- int64_t FileSize = -1);
+ static std::error_code getFileOrSTDIN(StringRef Filename,
+ std::unique_ptr<MemoryBuffer> &Result,
+ int64_t FileSize = -1);
//===--------------------------------------------------------------------===//
// Provided for performance analysis.