void TextDiagnosticPrinter::
PrintIncludeStack(FullSourceLoc Pos) {
if (Pos.isInvalid()) return;
Pos = Pos.getLogicalLoc();
// Print out the other include frames first.
PrintIncludeStack(Pos.getIncludeLoc());
unsigned LineNo = Pos.getLineNumber();
std::cerr << "In file included from " << Pos.getSourceName()
<< ":" << LineNo << ":\n";
}
void TextDiagnosticPrinter::HandleDiagnostic(Diagnostic &Diags,
Diagnostic::Level Level,
FullSourceLoc Pos,
diag::kind ID,
const std::string *Strs,
unsigned NumStrs,
const SourceRange *Ranges,
unsigned NumRanges) {
unsigned LineNo = 0, ColNo = 0;
const char *LineStart = 0, *LineEnd = 0;
if (Pos.isValid()) {
FullSourceLoc LPos = Pos.getLogicalLoc();
LineNo = LPos.getLineNumber();
// First, if this diagnostic is not in the main file, print out the
// "included from" lines.
if (LastWarningLoc != LPos.getIncludeLoc()) {
LastWarningLoc = LPos.getIncludeLoc();
PrintIncludeStack(LastWarningLoc);
}
// Compute the column number. Rewind from the current position to the start
// of the line.
ColNo = LPos.getColumnNumber();
const char *TokLogicalPtr = LPos.getCharacterData();
LineStart = TokLogicalPtr-ColNo+1; // Column # is 1-based
// Compute the line end. Scan forward from the error position to the end of
// the line.
const llvm::MemoryBuffer *Buffer = LPos.getBuffer();
const char *BufEnd = Buffer->getBufferEnd();
LineEnd = TokLogicalPtr;
while (LineEnd != BufEnd &&
*LineEnd != '\n' && *LineEnd != '\r')
++LineEnd;
std::cerr << Buffer->getBufferIdentifier()
<< ":" << LineNo << ":";
if (ColNo && !NoShowColumn)
std::cerr << ColNo << ":";
std::cerr << " ";
}
switch (Level) {
default: assert(0 && "Unknown diagnostic type!");
case Diagnostic::Note: std::cerr << "note: "; break;
case Diagnostic::Warning: std::cerr << "warning: "; break;
case Diagnostic::Error: std::cerr << "error: "; break;
case Diagnostic::Fatal: std::cerr << "fatal error: "; break;
break;
}
std::cerr << FormatDiagnostic(Diags, Level, ID, Strs, NumStrs) << "\n";
if (!NoCaretDiagnostics && Pos.isValid()) {
// Get the line of the source file.
std::string SourceLine(LineStart, LineEnd);
// Create a line for the carat that is filled with spaces that is the same
// length as the line of source code.
std::string CaratLine(LineEnd-LineStart, ' ');
// Highlight all of the characters covered by Ranges with ~ characters.
for (unsigned i = 0; i != NumRanges; ++i)
HighlightRange(Ranges[i], Pos.getManager(),LineNo, CaratLine, SourceLine);
// Next, insert the carat itself.
if (ColNo-1 < CaratLine.size())
CaratLine[ColNo-1] = '^';
else
CaratLine.push_back('^');
// Scan the source line, looking for tabs. If we find any, manually expand
// them to 8 characters and update the CaratLine to match.
for (unsigned i = 0; i != SourceLine.size(); ++i) {
if (SourceLine[i] != '\t') continue;
// Replace this tab with at least one space.
SourceLine[i] = ' ';
// Compute the number of spaces we need to insert.
unsigned NumSpaces = ((i+8)&~7) - (i+1);
assert(NumSpaces < 8 && "Invalid computation of space amt");
// Insert spaces into the SourceLine.
SourceLine.insert(i+1, NumSpaces, ' ');
// Insert spaces or ~'s into CaratLine.
CaratLine.insert(i+1, NumSpaces, CaratLine[i] == '~' ? '~' : ' ');
}
// Finally, remove any blank spaces from the end of CaratLine.
while (CaratLine[CaratLine.size()-1] == ' ')
CaratLine.erase(CaratLine.end()-1);
// Emit what we have computed.
std::cerr << SourceLine << "\n";
std::cerr << CaratLine << "\n";
}
}
