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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
12 using namespace llvm;
13
14 int 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
21 int 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 }