1//===- lib/Support/StringRefMemoryObject.cpp --------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/Support/StringRefMemoryObject.h"
11
12using namespace llvm;
13
14int StringRefMemoryObject::readByte(uint64_t Addr, uint8_t *Byte) const {
15  if (Addr >= Base + getExtent() || Addr < Base)
16    return -1;
17  *Byte = Bytes[Addr - Base];
18  return 0;
19}
20
21int StringRefMemoryObject::readBytes(uint64_t Addr,
22                                     uint64_t Size,
23                                     uint8_t *Buf) const {
24  uint64_t Offset = Addr - Base;
25  if (Addr >= Base + getExtent() || Offset + Size > getExtent() || Addr < Base)
26    return -1;
27  memcpy(Buf, Bytes.data() + Offset, Size);
28  return 0;
29}
30