void LLVMContext::diagnose(const DiagnosticInfo &DI) {
// If there is a report handler, use it.
if (pImpl->DiagnosticHandler) {
if (!pImpl->RespectDiagnosticFilters || isDiagnosticEnabled(DI))
pImpl->DiagnosticHandler(DI, pImpl->DiagnosticContext);
return;
}
if (!isDiagnosticEnabled(DI))
return;
// Otherwise, print the message with a prefix based on the severity.
std::string MsgStorage;
raw_string_ostream Stream(MsgStorage);
DiagnosticPrinterRawOStream DP(Stream);
DI.print(DP);
Stream.flush();
switch (DI.getSeverity()) {
case DS_Error:
errs() << "error: " << MsgStorage << "\n";
exit(1);
case DS_Warning:
errs() << "warning: " << MsgStorage << "\n";
break;
case DS_Remark:
errs() << "remark: " << MsgStorage << "\n";
break;
case DS_Note:
errs() << "note: " << MsgStorage << "\n";
break;
}
}
void LTOCodeGenerator::DiagnosticHandler2(const DiagnosticInfo &DI) {
// Map the LLVM internal diagnostic severity to the LTO diagnostic severity.
lto_codegen_diagnostic_severity_t Severity;
switch (DI.getSeverity()) {
case DS_Error:
Severity = LTO_DS_ERROR;
break;
case DS_Warning:
Severity = LTO_DS_WARNING;
break;
case DS_Remark:
Severity = LTO_DS_REMARK;
break;
case DS_Note:
Severity = LTO_DS_NOTE;
break;
}
// Create the string that will be reported to the external diagnostic handler.
std::string MsgStorage;
raw_string_ostream Stream(MsgStorage);
DiagnosticPrinterRawOStream DP(Stream);
DI.print(DP);
Stream.flush();
// If this method has been called it means someone has set up an external
// diagnostic handler. Assert on that.
assert(DiagHandler && "Invalid diagnostic handler");
(*DiagHandler)(Severity, MsgStorage.c_str(), DiagContext);
}
static void diagnosticHandler(const DiagnosticInfo &DI) {
DiagnosticPrinterRawOStream DP(errs());
DI.print(DP);
errs() << '\n';
if (DI.getSeverity() == DS_Error)
exit(1);
}
static void diagnosticHandler(const DiagnosticInfo &DI) {
raw_ostream &OS = errs();
OS << "llvm-lto: ";
switch (DI.getSeverity()) {
case DS_Error:
OS << "error";
break;
case DS_Warning:
OS << "warning";
break;
case DS_Remark:
OS << "remark";
break;
case DS_Note:
OS << "note";
break;
}
if (!CurrentActivity.empty())
OS << ' ' << CurrentActivity;
OS << ": ";
DiagnosticPrinterRawOStream DP(OS);
DI.print(DP);
OS << '\n';
if (DI.getSeverity() == DS_Error)
exit(1);
}
void LLVMContext::diagnose(const DiagnosticInfo &DI) {
if (auto *OptDiagBase = dyn_cast<DiagnosticInfoOptimizationBase>(&DI)) {
yaml::Output *Out = getDiagnosticsOutputFile();
if (Out) {
// For remarks the << operator takes a reference to a pointer.
auto *P = const_cast<DiagnosticInfoOptimizationBase *>(OptDiagBase);
*Out << P;
}
}
// If there is a report handler, use it.
if (pImpl->DiagHandler &&
(!pImpl->RespectDiagnosticFilters || isDiagnosticEnabled(DI)) &&
pImpl->DiagHandler->handleDiagnostics(DI))
return;
if (!isDiagnosticEnabled(DI))
return;
// Otherwise, print the message with a prefix based on the severity.
DiagnosticPrinterRawOStream DP(errs());
errs() << getDiagnosticMessagePrefix(DI.getSeverity()) << ": ";
DI.print(DP);
errs() << "\n";
if (DI.getSeverity() == DS_Error)
exit(1);
}
static void diagnosticHandler(const DiagnosticInfo &DI, void *Context) {
if (const auto *BDI = dyn_cast<BitcodeDiagnosticInfo>(&DI)) {
std::error_code EC = BDI->getError();
if (EC == BitcodeError::InvalidBitcodeSignature)
return;
}
std::string ErrStorage;
{
raw_string_ostream OS(ErrStorage);
DiagnosticPrinterRawOStream DP(OS);
DI.print(DP);
}
ld_plugin_level Level;
switch (DI.getSeverity()) {
case DS_Error:
message(LDPL_FATAL, "LLVM gold plugin has failed to create LTO module: %s",
ErrStorage.c_str());
llvm_unreachable("Fatal doesn't return.");
case DS_Warning:
Level = LDPL_WARNING;
break;
case DS_Note:
case DS_Remark:
Level = LDPL_INFO;
break;
}
message(Level, "LLVM gold plugin: %s", ErrStorage.c_str());
}
/// \brief This function is invoked when the backend needs
/// to report something to the user.
void BackendConsumer::DiagnosticHandlerImpl(const DiagnosticInfo &DI) {
unsigned DiagID = diag::err_fe_inline_asm;
llvm::DiagnosticSeverity Severity = DI.getSeverity();
// Get the diagnostic ID based.
switch (DI.getKind()) {
case llvm::DK_InlineAsm:
if (InlineAsmDiagHandler(cast<DiagnosticInfoInlineAsm>(DI)))
return;
ComputeDiagID(Severity, inline_asm, DiagID);
break;
case llvm::DK_StackSize:
if (StackSizeDiagHandler(cast<DiagnosticInfoStackSize>(DI)))
return;
ComputeDiagID(Severity, backend_frame_larger_than, DiagID);
break;
default:
// Plugin IDs are not bound to any value as they are set dynamically.
ComputeDiagRemarkID(Severity, backend_plugin, DiagID);
break;
}
std::string MsgStorage;
{
raw_string_ostream Stream(MsgStorage);
DiagnosticPrinterRawOStream DP(Stream);
DI.print(DP);
}
// Report the backend message using the usual diagnostic mechanism.
FullSourceLoc Loc;
Diags.Report(Loc, DiagID).AddString(MsgStorage);
}
/// \brief This function is invoked when the backend needs
/// to report something to the user.
void BackendConsumer::DiagnosticHandlerImpl(const DiagnosticInfo &DI) {
unsigned DiagID = diag::err_fe_inline_asm;
llvm::DiagnosticSeverity Severity = DI.getSeverity();
// Get the diagnostic ID based.
switch (DI.getKind()) {
case llvm::DK_InlineAsm:
if (InlineAsmDiagHandler(cast<DiagnosticInfoInlineAsm>(DI)))
return;
ComputeDiagID(Severity, inline_asm, DiagID);
break;
case llvm::DK_StackSize:
if (StackSizeDiagHandler(cast<DiagnosticInfoStackSize>(DI)))
return;
ComputeDiagID(Severity, backend_frame_larger_than, DiagID);
break;
case llvm::DK_OptimizationRemark:
// Optimization remarks are always handled completely by this
// handler. There is no generic way of emitting them.
OptimizationRemarkHandler(cast<DiagnosticInfoOptimizationRemark>(DI));
return;
case llvm::DK_OptimizationRemarkMissed:
// Optimization remarks are always handled completely by this
// handler. There is no generic way of emitting them.
OptimizationRemarkHandler(cast<DiagnosticInfoOptimizationRemarkMissed>(DI));
return;
case llvm::DK_OptimizationRemarkAnalysis:
// Optimization remarks are always handled completely by this
// handler. There is no generic way of emitting them.
OptimizationRemarkHandler(
cast<DiagnosticInfoOptimizationRemarkAnalysis>(DI));
return;
case llvm::DK_OptimizationRemarkAnalysisFPCommute:
// Optimization remarks are always handled completely by this
// handler. There is no generic way of emitting them.
OptimizationRemarkHandler(
cast<DiagnosticInfoOptimizationRemarkAnalysisFPCommute>(DI));
return;
case llvm::DK_OptimizationFailure:
// Optimization failures are always handled completely by this
// handler.
OptimizationFailureHandler(cast<DiagnosticInfoOptimizationFailure>(DI));
return;
default:
// Plugin IDs are not bound to any value as they are set dynamically.
ComputeDiagRemarkID(Severity, backend_plugin, DiagID);
break;
}
std::string MsgStorage;
{
raw_string_ostream Stream(MsgStorage);
DiagnosticPrinterRawOStream DP(Stream);
DI.print(DP);
}
// Report the backend message using the usual diagnostic mechanism.
FullSourceLoc Loc;
Diags.Report(Loc, DiagID).AddString(MsgStorage);
}
static void diagnosticHandler(const DiagnosticInfo &DI, void *Context) {
assert(DI.getSeverity() == DS_Error && "Only expecting errors");
raw_ostream &OS = errs();
OS << (char *)Context << ": ";
DiagnosticPrinterRawOStream DP(OS);
DI.print(DP);
OS << '\n';
exit(1);
}
static void DiagnosticHandler(const DiagnosticInfo &DI, void *Context) {
bool *HasError = static_cast<bool *>(Context);
if (DI.getSeverity() == DS_Error)
*HasError = true;
DiagnosticPrinterRawOStream DP(errs());
errs() << LLVMContext::getDiagnosticMessagePrefix(DI.getSeverity()) << ": ";
DI.print(DP);
errs() << "\n";
}
void BackendConsumer::linkerDiagnosticHandler(const DiagnosticInfo &DI) {
if (DI.getSeverity() != DS_Error)
return;
std::string MsgStorage;
{
raw_string_ostream Stream(MsgStorage);
DiagnosticPrinterRawOStream DP(Stream);
DI.print(DP);
}
Diags.Report(diag::err_fe_cannot_link_module)
<< LinkModule->getModuleIdentifier() << MsgStorage;
}
static void DiagnosticHandler(const DiagnosticInfo &DI, void *Context) {
bool *HasError = static_cast<bool *>(Context);
if (DI.getSeverity() == DS_Error)
*HasError = true;
if (auto *Remark = dyn_cast<DiagnosticInfoOptimizationBase>(&DI))
if (!Remark->isEnabled())
return;
DiagnosticPrinterRawOStream DP(errs());
errs() << LLVMContext::getDiagnosticMessagePrefix(DI.getSeverity()) << ": ";
DI.print(DP);
errs() << "\n";
}
static void diagnosticHandler(const DiagnosticInfo &DI, void *Context) {
if (DI.getSeverity() != DS_Error) {
DiagnosticPrinterRawOStream DP(errs());
DI.print(DP);
errs() << '\n';
return;
}
sLastErrorString = "";
{
raw_string_ostream Stream(sLastErrorString);
DiagnosticPrinterRawOStream DP(Stream);
DI.print(DP);
}
}
bool handleDiagnostics(const DiagnosticInfo &DI) override {
if (DI.getSeverity() != DS_Error) {
DiagnosticPrinterRawOStream DP(errs());
DI.print(DP);
errs() << '\n';
return true;
}
sLastErrorString = "";
{
raw_string_ostream Stream(sLastErrorString);
DiagnosticPrinterRawOStream DP(Stream);
DI.print(DP);
}
return true;
}
void lld::diagnosticHandler(const DiagnosticInfo &DI) {
SmallString<128> S;
raw_svector_ostream OS(S);
DiagnosticPrinterRawOStream DP(OS);
DI.print(DP);
warn(S);
}
static bool isDiagnosticEnabled(const DiagnosticInfo &DI) {
// Optimization remarks are selective. They need to check whether the regexp
// pattern, passed via one of the -pass-remarks* flags, matches the name of
// the pass that is emitting the diagnostic. If there is no match, ignore the
// diagnostic and return.
switch (DI.getKind()) {
case llvm::DK_OptimizationRemark:
if (!cast<DiagnosticInfoOptimizationRemark>(DI).isEnabled())
return false;
break;
case llvm::DK_OptimizationRemarkMissed:
if (!cast<DiagnosticInfoOptimizationRemarkMissed>(DI).isEnabled())
return false;
break;
case llvm::DK_OptimizationRemarkAnalysis:
if (!cast<DiagnosticInfoOptimizationRemarkAnalysis>(DI).isEnabled())
return false;
break;
case llvm::DK_OptimizationRemarkAnalysisFPCommute:
if (!cast<DiagnosticInfoOptimizationRemarkAnalysisFPCommute>(DI)
.isEnabled())
return false;
break;
default:
break;
}
return true;
}
static void diagnosticHandler(const DiagnosticInfo &DI) {
SmallString<128> ErrStorage;
raw_svector_ostream OS(ErrStorage);
DiagnosticPrinterRawOStream DP(OS);
DI.print(DP);
warn(ErrStorage);
}
static void diagnosticHandler(const DiagnosticInfo &DI, void *Context) {
raw_ostream &OS = errs();
OS << (char *)Context << ": ";
switch (DI.getSeverity()) {
case DS_Error: OS << "error: "; break;
case DS_Warning: OS << "warning: "; break;
case DS_Remark: OS << "remark: "; break;
case DS_Note: OS << "note: "; break;
}
DiagnosticPrinterRawOStream DP(OS);
DI.print(DP);
OS << '\n';
if (DI.getSeverity() == DS_Error)
exit(1);
}
void LLVMContext::diagnose(const DiagnosticInfo &DI) {
// If there is a report handler, use it.
if (pImpl->DiagHandler &&
(!pImpl->RespectDiagnosticFilters || isDiagnosticEnabled(DI)) &&
pImpl->DiagHandler->handleDiagnostics(DI))
return;
if (!isDiagnosticEnabled(DI))
return;
// Otherwise, print the message with a prefix based on the severity.
DiagnosticPrinterRawOStream DP(errs());
errs() << getDiagnosticMessagePrefix(DI.getSeverity()) << ": ";
DI.print(DP);
errs() << "\n";
if (DI.getSeverity() == DS_Error)
exit(1);
}
static void diagnosticHandler(const DiagnosticInfo &DI) {
unsigned Severity = DI.getSeverity();
switch (Severity) {
case DS_Error:
errs() << "ERROR: ";
break;
case DS_Warning:
if (SuppressWarnings)
return;
errs() << "WARNING: ";
break;
case DS_Remark:
case DS_Note:
llvm_unreachable("Only expecting warnings and errors");
}
DiagnosticPrinterRawOStream DP(errs());
DI.print(DP);
errs() << '\n';
}
void PathDiagnosticClient::HandleDiagnostic(Diagnostic::Level DiagLevel,
const DiagnosticInfo &Info) {
// Create a PathDiagnostic with a single piece.
PathDiagnostic* D = new PathDiagnostic();
const char *LevelStr;
switch (DiagLevel) {
default:
case Diagnostic::Ignored: assert(0 && "Invalid diagnostic type");
case Diagnostic::Note: LevelStr = "note: "; break;
case Diagnostic::Warning: LevelStr = "warning: "; break;
case Diagnostic::Error: LevelStr = "error: "; break;
case Diagnostic::Fatal: LevelStr = "fatal error: "; break;
}
llvm::SmallString<100> StrC;
StrC += LevelStr;
Info.FormatDiagnostic(StrC);
PathDiagnosticPiece *P =
new PathDiagnosticEventPiece(Info.getLocation(), StrC.str());
for (unsigned i = 0, e = Info.getNumRanges(); i != e; ++i)
P->addRange(Info.getRange(i));
for (unsigned i = 0, e = Info.getNumCodeModificationHints(); i != e; ++i)
P->addCodeModificationHint(Info.getCodeModificationHint(i));
D->push_front(P);
HandlePathDiagnostic(D);
}
void LLVMContext::diagnose(const DiagnosticInfo &DI) {
if (auto *OptDiagBase = dyn_cast<DiagnosticInfoOptimizationBase>(&DI))
if (RemarkStreamer *RS = getRemarkStreamer())
RS->emit(*OptDiagBase);
// If there is a report handler, use it.
if (pImpl->DiagHandler &&
(!pImpl->RespectDiagnosticFilters || isDiagnosticEnabled(DI)) &&
pImpl->DiagHandler->handleDiagnostics(DI))
return;
if (!isDiagnosticEnabled(DI))
return;
// Otherwise, print the message with a prefix based on the severity.
DiagnosticPrinterRawOStream DP(errs());
errs() << getDiagnosticMessagePrefix(DI.getSeverity()) << ": ";
DI.print(DP);
errs() << "\n";
if (DI.getSeverity() == DS_Error)
exit(1);
}
static void diagnosticHandler(const DiagnosticInfo &DI) {
std::string ErrStorage;
{
raw_string_ostream OS(ErrStorage);
DiagnosticPrinterRawOStream DP(OS);
DI.print(DP);
}
ld_plugin_level Level;
switch (DI.getSeverity()) {
case DS_Error:
message(LDPL_FATAL, "LLVM gold plugin has failed to create LTO module: %s",
ErrStorage.c_str());
case DS_Warning:
Level = LDPL_WARNING;
break;
case DS_Note:
case DS_Remark:
Level = LDPL_INFO;
break;
}
message(Level, "LLVM gold plugin: %s", ErrStorage.c_str());
}
StoredDiagnostic::StoredDiagnostic(Diagnostic::Level Level,
const DiagnosticInfo &Info)
: Level(Level), Loc(Info.getLocation())
{
llvm::SmallString<64> Message;
Info.FormatDiagnostic(Message);
this->Message.assign(Message.begin(), Message.end());
Ranges.reserve(Info.getNumRanges());
for (unsigned I = 0, N = Info.getNumRanges(); I != N; ++I)
Ranges.push_back(Info.getRange(I));
FixIts.reserve(Info.getNumCodeModificationHints());
for (unsigned I = 0, N = Info.getNumCodeModificationHints(); I != N; ++I)
FixIts.push_back(Info.getCodeModificationHint(I));
}
void LLVMContext::diagnose(const DiagnosticInfo &DI) {
// If there is a report handler, use it.
if (pImpl->DiagnosticHandler) {
pImpl->DiagnosticHandler(DI, pImpl->DiagnosticContext);
return;
}
// Optimization remarks are selective. They need to check whether
// the regexp pattern, passed via -pass-remarks, matches the name
// of the pass that is emitting the diagnostic. If there is no match,
// ignore the diagnostic and return.
if (DI.getKind() == llvm::DK_OptimizationRemark &&
!pImpl->optimizationRemarksEnabledFor(
cast<DiagnosticInfoOptimizationRemark>(DI).getPassName()))
return;
// Otherwise, print the message with a prefix based on the severity.
std::string MsgStorage;
raw_string_ostream Stream(MsgStorage);
DiagnosticPrinterRawOStream DP(Stream);
DI.print(DP);
Stream.flush();
switch (DI.getSeverity()) {
case DS_Error:
errs() << "error: " << MsgStorage << "\n";
exit(1);
case DS_Warning:
errs() << "warning: " << MsgStorage << "\n";
break;
case DS_Remark:
errs() << "remark: " << MsgStorage << "\n";
break;
case DS_Note:
errs() << "note: " << MsgStorage << "\n";
break;
}
}
void DriverDiagnosticPrinter::HandleDiagnostic(Diagnostic::Level Level,
const DiagnosticInfo &Info) {
OS << ProgName << ": ";
switch (Level) {
case Diagnostic::Ignored: assert(0 && "Invalid diagnostic type");
case Diagnostic::Note: OS << "note: "; break;
case Diagnostic::Warning: OS << "warning: "; break;
case Diagnostic::Error: OS << "error: "; break;
case Diagnostic::Fatal: OS << "fatal error: "; break;
}
llvm::SmallString<100> OutStr;
Info.FormatDiagnostic(OutStr);
OS.write(OutStr.begin(), OutStr.size());
OS << '\n';
}
/// HandleSelectModifier - Handle the integer 'select' modifier. This is used
/// like this: %select{foo|bar|baz}2. This means that the integer argument
/// "%2" has a value from 0-2. If the value is 0, the diagnostic prints 'foo'.
/// If the value is 1, it prints 'bar'. If it has the value 2, it prints 'baz'.
/// This is very useful for certain classes of variant diagnostics.
static void HandleSelectModifier(const DiagnosticInfo &DInfo, unsigned ValNo,
const char *Argument, unsigned ArgumentLen,
llvm::SmallVectorImpl<char> &OutStr) {
const char *ArgumentEnd = Argument+ArgumentLen;
// Skip over 'ValNo' |'s.
while (ValNo) {
const char *NextVal = ScanFormat(Argument, ArgumentEnd, '|');
assert(NextVal != ArgumentEnd && "Value for integer select modifier was"
" larger than the number of options in the diagnostic string!");
Argument = NextVal+1; // Skip this string.
--ValNo;
}
// Get the end of the value. This is either the } or the |.
const char *EndPtr = ScanFormat(Argument, ArgumentEnd, '|');
// Recursively format the result of the select clause into the output string.
DInfo.FormatDiagnostic(Argument, EndPtr, OutStr);
}
/// HandlePluralModifier - Handle the integer 'plural' modifier. This is used
/// for complex plural forms, or in languages where all plurals are complex.
/// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are
/// conditions that are tested in order, the form corresponding to the first
/// that applies being emitted. The empty condition is always true, making the
/// last form a default case.
/// Conditions are simple boolean expressions, where n is the number argument.
/// Here are the rules.
/// condition := expression | empty
/// empty := -> always true
/// expression := numeric [',' expression] -> logical or
/// numeric := range -> true if n in range
/// | '%' number '=' range -> true if n % number in range
/// range := number
/// | '[' number ',' number ']' -> ranges are inclusive both ends
///
/// Here are some examples from the GNU gettext manual written in this form:
/// English:
/// {1:form0|:form1}
/// Latvian:
/// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0}
/// Gaeilge:
/// {1:form0|2:form1|:form2}
/// Romanian:
/// {1:form0|0,%100=[1,19]:form1|:form2}
/// Lithuanian:
/// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1}
/// Russian (requires repeated form):
/// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2}
/// Slovak
/// {1:form0|[2,4]:form1|:form2}
/// Polish (requires repeated form):
/// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2}
static void HandlePluralModifier(const DiagnosticInfo &DInfo, unsigned ValNo,
const char *Argument, unsigned ArgumentLen,
llvm::SmallVectorImpl<char> &OutStr) {
const char *ArgumentEnd = Argument + ArgumentLen;
while (1) {
assert(Argument < ArgumentEnd && "Plural expression didn't match.");
const char *ExprEnd = Argument;
while (*ExprEnd != ':') {
assert(ExprEnd != ArgumentEnd && "Plural missing expression end");
++ExprEnd;
}
if (EvalPluralExpr(ValNo, Argument, ExprEnd)) {
Argument = ExprEnd + 1;
ExprEnd = ScanFormat(Argument, ArgumentEnd, '|');
// Recursively format the result of the plural clause into the
// output string.
DInfo.FormatDiagnostic(Argument, ExprEnd, OutStr);
return;
}
Argument = ScanFormat(Argument, ArgumentEnd - 1, '|') + 1;
}
}
void FixItRewriter::HandleDiagnostic(Diagnostic::Level DiagLevel,
const DiagnosticInfo &Info) {
Client->HandleDiagnostic(DiagLevel, Info);
// Skip over any diagnostics that are ignored or notes.
if (DiagLevel <= Diagnostic::Note)
return;
// Make sure that we can perform all of the modifications we
// in this diagnostic.
bool CanRewrite = Info.getNumFixItHints() > 0;
for (unsigned Idx = 0, Last = Info.getNumFixItHints();
Idx < Last; ++Idx) {
const FixItHint &Hint = Info.getFixItHint(Idx);
if (Hint.RemoveRange.isValid() &&
Rewrite.getRangeSize(Hint.RemoveRange) == -1) {
CanRewrite = false;
break;
}
}
if (!CanRewrite) {
if (Info.getNumFixItHints() > 0)
Diag(Info.getLocation(), diag::note_fixit_in_macro);
// If this was an error, refuse to perform any rewriting.
if (DiagLevel == Diagnostic::Error || DiagLevel == Diagnostic::Fatal) {
if (++NumFailures == 1)
Diag(Info.getLocation(), diag::note_fixit_unfixed_error);
}
return;
}
bool Failed = false;
for (unsigned Idx = 0, Last = Info.getNumFixItHints();
Idx < Last; ++Idx) {
const FixItHint &Hint = Info.getFixItHint(Idx);
if (Hint.CodeToInsert.empty()) {
// We're removing code.
if (Rewrite.RemoveText(Hint.RemoveRange.getBegin(),
Rewrite.getRangeSize(Hint.RemoveRange)))
Failed = true;
continue;
}
// We're replacing code.
if (Rewrite.ReplaceText(Hint.RemoveRange.getBegin(),
Rewrite.getRangeSize(Hint.RemoveRange),
Hint.CodeToInsert))
Failed = true;
}
if (Failed) {
++NumFailures;
Diag(Info.getLocation(), diag::note_fixit_failed);
return;
}
Diag(Info.getLocation(), diag::note_fixit_applied);
}
void FixItRewriter::HandleDiagnostic(Diagnostic::Level DiagLevel,
const DiagnosticInfo &Info) {
Client->HandleDiagnostic(DiagLevel, Info);
// Skip over any diagnostics that are ignored.
if (DiagLevel == Diagnostic::Ignored)
return;
if (!FixItLocations.empty()) {
// The user has specified the locations where we should perform
// the various fix-it modifications.
// If this diagnostic does not have any code modifications,
// completely ignore it, even if it's an error: fix-it locations
// are meant to perform specific fix-ups even in the presence of
// other errors.
if (Info.getNumCodeModificationHints() == 0)
return;
// See if the location of the error is one that matches what the
// user requested.
bool AcceptableLocation = false;
const FileEntry *File
= Rewrite.getSourceMgr().getFileEntryForID(
Info.getLocation().getFileID());
unsigned Line = Info.getLocation().getSpellingLineNumber();
unsigned Column = Info.getLocation().getSpellingColumnNumber();
for (llvm::SmallVector<RequestedSourceLocation, 4>::iterator
Loc = FixItLocations.begin(), LocEnd = FixItLocations.end();
Loc != LocEnd; ++Loc) {
if (Loc->File == File && Loc->Line == Line && Loc->Column == Column) {
AcceptableLocation = true;
break;
}
}
if (!AcceptableLocation)
return;
}
// Make sure that we can perform all of the modifications we
// in this diagnostic.
bool CanRewrite = Info.getNumCodeModificationHints() > 0;
for (unsigned Idx = 0, Last = Info.getNumCodeModificationHints();
Idx < Last; ++Idx) {
const CodeModificationHint &Hint = Info.getCodeModificationHint(Idx);
if (Hint.RemoveRange.isValid() &&
Rewrite.getRangeSize(Hint.RemoveRange) == -1) {
CanRewrite = false;
break;
}
if (Hint.InsertionLoc.isValid() &&
!Rewrite.isRewritable(Hint.InsertionLoc)) {
CanRewrite = false;
break;
}
}
if (!CanRewrite) {
if (Info.getNumCodeModificationHints() > 0)
Diag(Info.getLocation(), diag::note_fixit_in_macro);
// If this was an error, refuse to perform any rewriting.
if (DiagLevel == Diagnostic::Error || DiagLevel == Diagnostic::Fatal) {
if (++NumFailures == 1)
Diag(Info.getLocation(), diag::note_fixit_unfixed_error);
}
return;
}
bool Failed = false;
for (unsigned Idx = 0, Last = Info.getNumCodeModificationHints();
Idx < Last; ++Idx) {
const CodeModificationHint &Hint = Info.getCodeModificationHint(Idx);
if (!Hint.RemoveRange.isValid()) {
// We're adding code.
if (Rewrite.InsertTextBefore(Hint.InsertionLoc, Hint.CodeToInsert))
Failed = true;
continue;
}
if (Hint.CodeToInsert.empty()) {
// We're removing code.
if (Rewrite.RemoveText(Hint.RemoveRange.getBegin(),
Rewrite.getRangeSize(Hint.RemoveRange)))
Failed = true;
continue;
}
// We're replacing code.
if (Rewrite.ReplaceText(Hint.RemoveRange.getBegin(),
Rewrite.getRangeSize(Hint.RemoveRange),
Hint.CodeToInsert))
Failed = true;
}
if (Failed) {
++NumFailures;
Diag(Info.getLocation(), diag::note_fixit_failed);
return;
}
Diag(Info.getLocation(), diag::note_fixit_applied);
}
