/// HighlightRange - Highlight a range in the source code with the specified /// start/end tags. B/E must be in the same file. This ensures that /// start/end tags are placed at the start/end of each line if the range is /// multiline. void html::HighlightRange(Rewriter &R, SourceLocation B, SourceLocation E, const char *StartTag, const char *EndTag) { SourceManager &SM = R.getSourceMgr(); B = SM.getInstantiationLoc(B); E = SM.getInstantiationLoc(E); FileID FID = SM.getFileID(B); assert(SM.getFileID(E) == FID && "B/E not in the same file!"); unsigned BOffset = SM.getFileOffset(B); unsigned EOffset = SM.getFileOffset(E); // Include the whole end token in the range. EOffset += Lexer::MeasureTokenLength(E, R.getSourceMgr(), R.getLangOpts()); HighlightRange(R.getEditBuffer(FID), BOffset, EOffset, SM.getBufferData(FID).first, StartTag, EndTag); }
void HTMLDiagnostics::HighlightRange(Rewriter& R, FileID BugFileID, SourceRange Range, const char *HighlightStart, const char *HighlightEnd) { SourceManager &SM = R.getSourceMgr(); const LangOptions &LangOpts = R.getLangOpts(); SourceLocation InstantiationStart = SM.getExpansionLoc(Range.getBegin()); unsigned StartLineNo = SM.getExpansionLineNumber(InstantiationStart); SourceLocation InstantiationEnd = SM.getExpansionLoc(Range.getEnd()); unsigned EndLineNo = SM.getExpansionLineNumber(InstantiationEnd); if (EndLineNo < StartLineNo) return; if (SM.getFileID(InstantiationStart) != BugFileID || SM.getFileID(InstantiationEnd) != BugFileID) return; // Compute the column number of the end. unsigned EndColNo = SM.getExpansionColumnNumber(InstantiationEnd); unsigned OldEndColNo = EndColNo; if (EndColNo) { // Add in the length of the token, so that we cover multi-char tokens. EndColNo += Lexer::MeasureTokenLength(Range.getEnd(), SM, LangOpts)-1; } // Highlight the range. Make the span tag the outermost tag for the // selected range. SourceLocation E = InstantiationEnd.getLocWithOffset(EndColNo - OldEndColNo); html::HighlightRange(R, InstantiationStart, E, HighlightStart, HighlightEnd); }