/// GetMessage - Return an SMDiagnostic at the specified location with the
/// specified string.
///
/// @param Type - If non-null, the kind of message (e.g., "error") which is
/// prefixed to the message.
SMDiagnostic SourceMgr::GetMessage(SMLoc Loc, SourceMgr::DiagKind Kind,
const Twine &Msg,
ArrayRef<SMRange> Ranges) const {
// First thing to do: find the current buffer containing the specified
// location.
int CurBuf = FindBufferContainingLoc(Loc);
assert(CurBuf != -1 && "Invalid or unspecified location!");
MemoryBuffer *CurMB = getBufferInfo(CurBuf).Buffer;
// Scan backward to find the start of the line.
const char *LineStart = Loc.getPointer();
while (LineStart != CurMB->getBufferStart() &&
LineStart[-1] != '\n' && LineStart[-1] != '\r')
--LineStart;
// Get the end of the line.
const char *LineEnd = Loc.getPointer();
while (LineEnd != CurMB->getBufferEnd() &&
LineEnd[0] != '\n' && LineEnd[0] != '\r')
++LineEnd;
std::string LineStr(LineStart, LineEnd);
// Convert any ranges to column ranges that only intersect the line of the
// location.
SmallVector<std::pair<unsigned, unsigned>, 4> ColRanges;
for (unsigned i = 0, e = Ranges.size(); i != e; ++i) {
SMRange R = Ranges[i];
if (!R.isValid()) continue;
// If the line doesn't contain any part of the range, then ignore it.
if (R.Start.getPointer() > LineEnd || R.End.getPointer() < LineStart)
continue;
// Ignore pieces of the range that go onto other lines.
if (R.Start.getPointer() < LineStart)
R.Start = SMLoc::getFromPointer(LineStart);
if (R.End.getPointer() > LineEnd)
R.End = SMLoc::getFromPointer(LineEnd);
// Translate from SMLoc ranges to column ranges.
ColRanges.push_back(std::make_pair(R.Start.getPointer()-LineStart,
R.End.getPointer()-LineStart));
}
return SMDiagnostic(*this, Loc,
CurMB->getBufferIdentifier(), FindLineNumber(Loc, CurBuf),
Loc.getPointer()-LineStart, Kind, Msg.str(),
LineStr, ColRanges);
}
/// GetMessage - Return an SMDiagnostic at the specified location with the
/// specified string.
///
/// @param Type - If non-null, the kind of message (e.g., "error") which is
/// prefixed to the message.
SMDiagnostic SourceMgr::GetMessage(SMLoc Loc, const Twine &Msg,
const char *Type, bool ShowLine) const {
// First thing to do: find the current buffer containing the specified
// location.
int CurBuf = FindBufferContainingLoc(Loc);
assert(CurBuf != -1 && "Invalid or unspecified location!");
MemoryBuffer *CurMB = getBufferInfo(CurBuf).Buffer;
// Scan backward to find the start of the line.
const char *LineStart = Loc.getPointer();
while (LineStart != CurMB->getBufferStart() &&
LineStart[-1] != '\n' && LineStart[-1] != '\r')
--LineStart;
std::string LineStr;
if (ShowLine) {
// Get the end of the line.
const char *LineEnd = Loc.getPointer();
while (LineEnd != CurMB->getBufferEnd() &&
LineEnd[0] != '\n' && LineEnd[0] != '\r')
++LineEnd;
LineStr = std::string(LineStart, LineEnd);
}
std::string PrintedMsg;
raw_string_ostream OS(PrintedMsg);
if (Type)
OS << Type << ": ";
OS << Msg;
return SMDiagnostic(*this, Loc,
CurMB->getBufferIdentifier(), FindLineNumber(Loc, CurBuf),
Loc.getPointer()-LineStart, OS.str(),
LineStr, ShowLine);
}
