clang: lib/Lex/ScratchBuffer.cpp Source File (original) (raw)
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15#include "llvm/Support/MemoryBuffer.h"
16#include
17using namespace clang;
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24 : SourceMgr(SM), CurBuffer(nullptr) {
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27}
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34 const char *&DestPtr) {
36 AllocScratchBuffer(Len+2);
37 else {
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44 }
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48 CurBuffer[BytesUsed++] = '\n';
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51 DestPtr = CurBuffer+BytesUsed;
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54 memcpy(CurBuffer+BytesUsed, Buf, Len);
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57 BytesUsed += Len+1;
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62 CurBuffer[BytesUsed-1] = '\0';
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65}
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67void ScratchBuffer::AllocScratchBuffer(unsigned RequestLen) {
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76 std::unique_ptrllvm::WritableMemoryBuffer OwnBuf =
77 llvm::WritableMemoryBuffer::getNewMemBuffer(RequestLen,
78 "");
79 CurBuffer = OwnBuf->getBufferStart();
82 BytesUsed = 0;
83}
static const unsigned ScratchBufSize
Defines the SourceManager interface.
__DEVICE__ void * memcpy(void *__a, const void *__b, size_t __c)
An opaque identifier used by SourceManager which refers to a source file (MemoryBuffer) along with it...
SourceLocation getToken(const char *Buf, unsigned Len, const char *&DestPtr)
getToken - Splat the specified text into a temporary MemoryBuffer and return a SourceLocation that re...
ScratchBuffer(SourceManager &SM)
Encodes a location in the source.
SourceLocation getLocWithOffset(IntTy Offset) const
Return a source location with the specified offset from this SourceLocation.
This class handles loading and caching of source files into memory.
FileID getFileID(SourceLocation SpellingLoc) const
Return the FileID for a SourceLocation.
FileID createFileID(FileEntryRef SourceFile, SourceLocation IncludePos, SrcMgr::CharacteristicKind FileCharacter, int LoadedID=0, SourceLocation::UIntTy LoadedOffset=0)
Create a new FileID that represents the specified file being #included from the specified IncludePosi...
SourceLocation getLocForStartOfFile(FileID FID) const
Return the source location corresponding to the first byte of the specified file.
const SrcMgr::SLocEntry & getSLocEntry(FileID FID, bool *Invalid=nullptr) const
LineOffsetMapping SourceLineCache
A bump pointer allocated array of offsets for each source line.
const ContentCache & getContentCache() const
Mapping of line offsets into a source file.
const FileInfo & getFile() const
The JSON file list parser is used to communicate input to InstallAPI.