// 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);
}
// Get the source range of the macro definition excluding the #define.
SrcRange getMacroRange(const clang::MacroInfo *MI,
const clang::SourceManager& sm,
const clang::LangOptions& options)
{
clang::SourceLocation SLoc = sm.getExpansionLoc(MI->getDefinitionLoc());
clang::SourceLocation ELoc = sm.getExpansionLoc(MI->getDefinitionEndLoc());
return constructSrcRange(sm, options, SLoc, ELoc);
}
// Get the source range of the specified Stmt.
SrcRange getStmtRange(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());
// This is necessary to get the correct range of function-like macros.
if (SLoc == ELoc && S->getLocEnd().isMacroID())
ELoc = sm.getExpansionRange(S->getLocEnd()).second;
return constructSrcRange(sm, options, SLoc, ELoc);
}
clang::SourceLocation getExpansionLoc(const clang::SourceManager& sm, clang::SourceLocation loc) {
if(sm.isMacroArgExpansion(loc)) { loc = sm.getExpansionLoc(loc); }
return loc;
}