本文整理汇总了C++中clang::SourceManager::getFileOffset方法的典型用法代码示例。如果您正苦于以下问题：C++ SourceManager::getFileOffset方法的具体用法？C++ SourceManager::getFileOffset怎么用？C++ SourceManager::getFileOffset使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类clang::SourceManager的用法示例。
在下文中一共展示了SourceManager::getFileOffset方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: getStmtRangeWithSemicolon
// Get the source range of the specified Stmt, ensuring that a semicolon is
// included, if necessary - since the clang ranges do not guarantee this.
SrcRange getStmtRangeWithSemicolon(const clang::Stmt *S,
const clang::SourceManager& sm,
const clang::LangOptions& options)
{
clang::SourceLocation SLoc = sm.getExpansionLoc(S->getLocStart());
clang::SourceLocation ELoc = sm.getExpansionLoc(S->getLocEnd());
unsigned start = sm.getFileOffset(SLoc);
unsigned end = sm.getFileOffset(ELoc);
// Below code copied from clang::Lexer::MeasureTokenLength():
clang::SourceLocation Loc = sm.getExpansionLoc(ELoc);
std::pair<clang::FileID, unsigned> LocInfo = sm.getDecomposedLoc(Loc);
llvm::StringRef Buffer = sm.getBufferData(LocInfo.first);
const char *StrData = Buffer.data()+LocInfo.second;
clang::Lexer TheLexer(Loc, options, Buffer.begin(), StrData, Buffer.end());
clang::Token TheTok;
TheLexer.LexFromRawLexer(TheTok);
// End copied code.
end += TheTok.getLength();
// Check if we the source range did include the semicolon.
if (TheTok.isNot(clang::tok::semi) && TheTok.isNot(clang::tok::r_brace)) {
TheLexer.LexFromRawLexer(TheTok);
if (TheTok.is(clang::tok::semi)) {
end += TheTok.getLength();
}
}
return SrcRange(start, end);
}示例2: constructSrcRange
SrcRange constructSrcRange(const clang::SourceManager& sm,
const clang::LangOptions& options,
const clang::SourceLocation& SLoc,
const clang::SourceLocation& ELoc)
{
unsigned start = sm.getFileOffset(SLoc);
unsigned end = sm.getFileOffset(ELoc);
end += clang::Lexer::MeasureTokenLength(ELoc, sm, options);
return SrcRange(start, end);
}示例3: GetTag
std::string MocNg::GetTag(clang::SourceLocation DeclLoc, const clang::SourceManager &SM)
{
clang::SourceLocation FileLoc = SM.getFileLoc(DeclLoc);
clang::FileID FID = SM.getFileID(FileLoc);
const llvm::MemoryBuffer *Buffer = SM.getBuffer(FID);
const char *B = Buffer->getBufferStart();
int Off = SM.getFileOffset(FileLoc);
int Orig = Off;
while (Off > 0 && B[Off] != ';' && B[Off]!=',' && B[Off] != '}' && B[Off] != ':' /*&& B[Off] != '\n'*/ ) {
Off--;
}
auto it_before = Tags.lower_bound(FileLoc.getLocWithOffset(Off - Orig));
auto it_after = Tags.upper_bound(FileLoc);
if (it_before != Tags.end() && it_after != Tags.begin() && it_before == (--it_after)) {
return it_before->second;
}
return {};
}