/// \brief Based on the way the client configured the Diagnostic
/// object, classify the specified diagnostic ID into a Level, consumable by
/// the DiagnosticClient.
///
/// \param Loc The source location we are interested in finding out the
/// diagnostic state. Can be null in order to query the latest state.
DiagnosticIDs::Level
DiagnosticIDs::getDiagnosticLevel(unsigned DiagID, unsigned DiagClass,
SourceLocation Loc,
const Diagnostic &Diag,
diag::Mapping *mapping) const {
// Specific non-error diagnostics may be mapped to various levels from ignored
// to error. Errors can only be mapped to fatal.
DiagnosticIDs::Level Result = DiagnosticIDs::Fatal;
Diagnostic::DiagStatePointsTy::iterator
Pos = Diag.GetDiagStatePointForLoc(Loc);
Diagnostic::DiagState *State = Pos->State;
// Get the mapping information, if unset, compute it lazily.
unsigned MappingInfo = Diag.getDiagnosticMappingInfo((diag::kind)DiagID,
State);
if (MappingInfo == 0) {
MappingInfo = GetDefaultDiagMapping(DiagID);
Diag.setDiagnosticMappingInternal(DiagID, MappingInfo, State, false, false);
}
if (mapping)
*mapping = (diag::Mapping) (MappingInfo & 7);
bool ShouldEmitInSystemHeader = false;
switch (MappingInfo & 7) {
default: assert(0 && "Unknown mapping!");
case diag::MAP_IGNORE:
// Ignore this, unless this is an extension diagnostic and we're mapping
// them onto warnings or errors.
if (!isBuiltinExtensionDiag(DiagID) || // Not an extension
Diag.ExtBehavior == Diagnostic::Ext_Ignore || // Ext ignored
(MappingInfo & 8) != 0) // User explicitly mapped it.
return DiagnosticIDs::Ignored;
Result = DiagnosticIDs::Warning;
if (Diag.ExtBehavior == Diagnostic::Ext_Error) Result = DiagnosticIDs::Error;
if (Result == DiagnosticIDs::Error && Diag.ErrorsAsFatal)
Result = DiagnosticIDs::Fatal;
break;
case diag::MAP_ERROR:
Result = DiagnosticIDs::Error;
if (Diag.ErrorsAsFatal)
Result = DiagnosticIDs::Fatal;
break;
case diag::MAP_FATAL:
Result = DiagnosticIDs::Fatal;
break;
case diag::MAP_WARNING_SHOW_IN_SYSTEM_HEADER:
ShouldEmitInSystemHeader = true;
// continue as MAP_WARNING.
case diag::MAP_WARNING:
// If warnings are globally mapped to ignore or error, do it.
if (Diag.IgnoreAllWarnings)
return DiagnosticIDs::Ignored;
Result = DiagnosticIDs::Warning;
// If this is an extension diagnostic and we're in -pedantic-error mode, and
// if the user didn't explicitly map it, upgrade to an error.
if (Diag.ExtBehavior == Diagnostic::Ext_Error &&
(MappingInfo & 8) == 0 &&
isBuiltinExtensionDiag(DiagID))
Result = DiagnosticIDs::Error;
if (Diag.WarningsAsErrors)
Result = DiagnosticIDs::Error;
if (Result == DiagnosticIDs::Error && Diag.ErrorsAsFatal)
Result = DiagnosticIDs::Fatal;
break;
case diag::MAP_WARNING_NO_WERROR:
// Diagnostics specified with -Wno-error=foo should be set to warnings, but
// not be adjusted by -Werror or -pedantic-errors.
Result = DiagnosticIDs::Warning;
// If warnings are globally mapped to ignore or error, do it.
if (Diag.IgnoreAllWarnings)
return DiagnosticIDs::Ignored;
break;
case diag::MAP_ERROR_NO_WFATAL:
// Diagnostics specified as -Wno-fatal-error=foo should be errors, but
// unaffected by -Wfatal-errors.
Result = DiagnosticIDs::Error;
break;
}
// Okay, we're about to return this as a "diagnostic to emit" one last check:
// if this is any sort of extension warning, and if we're in an __extension__
// block, silence it.
if (Diag.AllExtensionsSilenced && isBuiltinExtensionDiag(DiagID))
return DiagnosticIDs::Ignored;
// If we are in a system header, we ignore it.
// We also want to ignore extensions and warnings in -Werror and
// -pedantic-errors modes, which *map* warnings/extensions to errors.
if (Result >= DiagnosticIDs::Warning &&
DiagClass != CLASS_ERROR &&
// Custom diagnostics always are emitted in system headers.
DiagID < diag::DIAG_UPPER_LIMIT &&
!ShouldEmitInSystemHeader &&
Diag.SuppressSystemWarnings &&
Loc.isValid() &&
Diag.getSourceManager().isInSystemHeader(
Diag.getSourceManager().getInstantiationLoc(Loc)))
return DiagnosticIDs::Ignored;
return Result;
}
/// \brief Based on the way the client configured the Diagnostic
/// object, classify the specified diagnostic ID into a Level, consumable by
/// the DiagnosticClient.
///
/// \param Loc The source location we are interested in finding out the
/// diagnostic state. Can be null in order to query the latest state.
DiagnosticIDs::Level
DiagnosticIDs::getDiagnosticLevel(unsigned DiagID, unsigned DiagClass,
SourceLocation Loc,
const Diagnostic &Diag,
diag::Mapping *mapping) const {
// Specific non-error diagnostics may be mapped to various levels from ignored
// to error. Errors can only be mapped to fatal.
DiagnosticIDs::Level Result = DiagnosticIDs::Fatal;
Diagnostic::DiagStatePointsTy::iterator
Pos = Diag.GetDiagStatePointForLoc(Loc);
Diagnostic::DiagState *State = Pos->State;
// Get the mapping information, if unset, compute it lazily.
unsigned MappingInfo = Diag.getDiagnosticMappingInfo((diag::kind)DiagID,
State);
if (MappingInfo == 0) {
MappingInfo = GetDefaultDiagMapping(DiagID);
Diag.setDiagnosticMappingInternal(DiagID, MappingInfo, State, false, false);
}
if (mapping)
*mapping = (diag::Mapping) (MappingInfo & 7);
switch (MappingInfo & 7) {
default: assert(0 && "Unknown mapping!");
case diag::MAP_IGNORE:
// Ignore this, unless this is an extension diagnostic and we're mapping
// them onto warnings or errors.
if (!isBuiltinExtensionDiag(DiagID) || // Not an extension
Diag.ExtBehavior == Diagnostic::Ext_Ignore || // Ext ignored
(MappingInfo & 8) != 0) // User explicitly mapped it.
return DiagnosticIDs::Ignored;
Result = DiagnosticIDs::Warning;
if (Diag.ExtBehavior == Diagnostic::Ext_Error) Result = DiagnosticIDs::Error;
if (Result == DiagnosticIDs::Error && Diag.ErrorsAsFatal)
Result = DiagnosticIDs::Fatal;
break;
case diag::MAP_ERROR:
Result = DiagnosticIDs::Error;
if (Diag.ErrorsAsFatal)
Result = DiagnosticIDs::Fatal;
break;
case diag::MAP_FATAL:
Result = DiagnosticIDs::Fatal;
break;
case diag::MAP_WARNING:
// If warnings are globally mapped to ignore or error, do it.
if (Diag.IgnoreAllWarnings)
return DiagnosticIDs::Ignored;
Result = DiagnosticIDs::Warning;
// If this is an extension diagnostic and we're in -pedantic-error mode, and
// if the user didn't explicitly map it, upgrade to an error.
if (Diag.ExtBehavior == Diagnostic::Ext_Error &&
(MappingInfo & 8) == 0 &&
isBuiltinExtensionDiag(DiagID))
Result = DiagnosticIDs::Error;
if (Diag.WarningsAsErrors)
Result = DiagnosticIDs::Error;
if (Result == DiagnosticIDs::Error && Diag.ErrorsAsFatal)
Result = DiagnosticIDs::Fatal;
break;
case diag::MAP_WARNING_NO_WERROR:
// Diagnostics specified with -Wno-error=foo should be set to warnings, but
// not be adjusted by -Werror or -pedantic-errors.
Result = DiagnosticIDs::Warning;
// If warnings are globally mapped to ignore or error, do it.
if (Diag.IgnoreAllWarnings)
return DiagnosticIDs::Ignored;
break;
case diag::MAP_ERROR_NO_WFATAL:
// Diagnostics specified as -Wno-fatal-error=foo should be errors, but
// unaffected by -Wfatal-errors.
Result = DiagnosticIDs::Error;
break;
}
// Okay, we're about to return this as a "diagnostic to emit" one last check:
// if this is any sort of extension warning, and if we're in an __extension__
// block, silence it.
if (Diag.AllExtensionsSilenced && isBuiltinExtensionDiag(DiagID))
return DiagnosticIDs::Ignored;
return Result;
}
