blob: c1d134de11a98c4a4c098f57402b2d9f2009b1ff (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
//===--- ScratchBuffer.h - Scratch space for forming tokens -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the ScratchBuffer interface.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_SCRATCHBUFFER_H
#define LLVM_CLANG_SCRATCHBUFFER_H
namespace clang {
class SourceManager;
class SourceLocation;
/// ScratchBuffer - This class exposes a simple interface for the dynamic
/// construction of tokens. This is used for builtin macros (e.g. __LINE__) as
/// well as token pasting, etc.
class ScratchBuffer {
SourceManager &SourceMgr;
char *CurBuffer;
unsigned FileID;
unsigned BytesUsed;
public:
ScratchBuffer(SourceManager &SM);
/// getToken - Splat the specified text into a temporary MemoryBuffer and
/// return a SourceLocation that refers to the token. The SourceLoc value
/// gives a virtual location that the token will appear to be from.
SourceLocation getToken(const char *Buf, unsigned Len,
SourceLocation SourceLoc);
/// getToken - Splat the specified text into a temporary MemoryBuffer and
/// return a SourceLocation that refers to the token. This is just like the
/// previous method, but returns a location that indicates the physloc of the
/// token.
SourceLocation getToken(const char *Buf, unsigned Len);
private:
void AllocScratchBuffer(unsigned RequestLen);
};
} // end namespace clang
#endif
|
