void SerializedDiagnosticConsumer::
emitDiagnosticMessage(SourceManager &SM,
SourceLoc Loc,
DiagnosticKind Kind,
StringRef Text,
const DiagnosticInfo &Info) {
// Emit the diagnostic to bitcode.
llvm::BitstreamWriter &Stream = State->Stream;
RecordData &Record = State->Record;
AbbreviationMap &Abbrevs = State->Abbrevs;
StringRef filename = "";
if (Loc.isValid())
filename = SM.getIdentifierForBuffer(SM.findBufferContainingLoc(Loc));
// Emit the RECORD_DIAG record.
Record.clear();
Record.push_back(RECORD_DIAG);
Record.push_back(getDiagnosticLevel(Kind));
addLocToRecord(Loc, SM, filename, Record);
// FIXME: Swift diagnostics currently have no category.
Record.push_back(0);
// FIXME: Swift diagnostics currently have no flags.
Record.push_back(0);
// Emit the message.
Record.push_back(Text.size());
Stream.EmitRecordWithBlob(Abbrevs.get(RECORD_DIAG), Record, Text);
// If the location is invalid, do not emit source ranges or fixits.
if (Loc.isInvalid())
return;
// Emit source ranges.
auto RangeAbbrev = State->Abbrevs.get(RECORD_SOURCE_RANGE);
for (const auto &R : Info.Ranges) {
if (R.isInvalid())
continue;
State->Record.clear();
State->Record.push_back(RECORD_SOURCE_RANGE);
addRangeToRecord(R, SM, filename, State->Record);
State->Stream.EmitRecordWithAbbrev(RangeAbbrev, State->Record);
}
// Emit FixIts.
auto FixItAbbrev = State->Abbrevs.get(RECORD_FIXIT);
for (const auto &F : Info.FixIts) {
if (F.getRange().isValid()) {
State->Record.clear();
State->Record.push_back(RECORD_FIXIT);
addRangeToRecord(F.getRange(), SM, filename, State->Record);
State->Record.push_back(F.getText().size());
Stream.EmitRecordWithBlob(FixItAbbrev, Record, F.getText());
}
}
}
/// \brief Extract a character immediately before \p Loc. If \p Loc is the
/// start of the buffer, return '\f'.
static char extractCharBefore(SourceManager &SM, SourceLoc Loc) {
// We have to be careful not to go off the front of the buffer.
auto bufferID = SM.findBufferContainingLoc(Loc);
auto bufferRange = SM.getRangeForBuffer(bufferID);
if (bufferRange.getStart() == Loc)
return '\f';
auto chars = SM.extractText({Loc.getAdvancedLoc(-1), 1}, bufferID);
assert(!chars.empty() && "Couldn't extractText with valid range");
return chars[0];
}
void SourceLoc::print(raw_ostream &OS, const SourceManager &SM,
unsigned &LastBufferID) const {
if (isInvalid()) {
OS << "<invalid loc>";
return;
}
unsigned BufferID = SM.findBufferContainingLoc(*this);
if (BufferID != LastBufferID) {
OS << SM.getIdentifierForBuffer(BufferID);
LastBufferID = BufferID;
} else {
OS << "line";
}
auto LineAndCol = SM.getLineAndColumn(*this, BufferID);
OS << ':' << LineAndCol.first << ':' << LineAndCol.second;
}
void SerializedDiagnosticConsumer::addLocToRecord(SourceLoc Loc,
SourceManager &SM,
StringRef Filename,
RecordDataImpl &Record) {
if (!Loc.isValid()) {
// Emit a "sentinel" location.
Record.push_back((unsigned)0); // File.
Record.push_back((unsigned)0); // Line.
Record.push_back((unsigned)0); // Column.
Record.push_back((unsigned)0); // Offset.
return;
}
auto bufferId = SM.findBufferContainingLoc(Loc);
unsigned line, col;
std::tie(line, col) = SM.getLineAndColumn(Loc);
Record.push_back(getEmitFile(Filename));
Record.push_back(line);
Record.push_back(col);
Record.push_back(SM.getLocOffsetInBuffer(Loc, bufferId));
}
