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Rewrite the printing of diagnostic options, categories, etc to actually 

use the ostream interface and avoid lots of temporary strings.

llvm-svn: 140494
This commit is contained in:
Chandler Carruth 2011-09-26 01:21:58 +00:00
parent b5784324b3
commit 0059a9bee0
1 changed files with 29 additions and 35 deletions
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64
clang/lib/Frontend/TextDiagnosticPrinter.cpp
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@ -1095,54 +1095,49 @@ static void PrintDiagnosticOptions(raw_ostream &OS,
DiagnosticsEngine::Level Level,
const Diagnostic &Info,
const DiagnosticOptions &DiagOpts) {
std::string OptionName;
bool Started = false;
if (DiagOpts.ShowOptionNames) {
// Handle special cases for non-warnings early.
if (Info.getID() == diag::fatal_too_many_errors) {
OS << " [-ferror-limit=]";
return;
}
// Was this a warning mapped to an error using -Werror or pragma?
if (Level == DiagnosticsEngine::Error &&
DiagnosticIDs::isBuiltinWarningOrExtension(Info.getID())) {
diag::Mapping mapping = diag::MAP_IGNORE;
Info.getDiags()->getDiagnosticLevel(Info.getID(), Info.getLocation(),
&mapping);
if (mapping == diag::MAP_WARNING)
OptionName += "-Werror";
if (mapping == diag::MAP_WARNING) {
OS << " [-Werror";
Started = true;
}
}
// If the diagnostic is an extension diagnostic and not enabled by default
// then it must have been turned on with -pedantic.
bool EnabledByDefault;
if (DiagnosticIDs::isBuiltinExtensionDiag(Info.getID(),
EnabledByDefault) &&
!EnabledByDefault) {
OS << (Started ? "," : " [") << "-pedantic";
Started = true;
}
StringRef Opt = DiagnosticIDs::getWarningOptionForDiag(Info.getID());
if (!Opt.empty()) {
if (!OptionName.empty())
OptionName += ',';
OptionName += "-W";
OptionName += Opt;
} else if (Info.getID() == diag::fatal_too_many_errors) {
OptionName = "-ferror-limit=";
} else {
// If the diagnostic is an extension diagnostic and not enabled by default
// then it must have been turned on with -pedantic.
bool EnabledByDefault;
if (DiagnosticIDs::isBuiltinExtensionDiag(Info.getID(),
EnabledByDefault) &&
!EnabledByDefault)
OptionName = "-pedantic";
OS << (Started ? "," : " [") << "-W" << Opt;
Started = true;
}
}
// If the user wants to see category information, include it too.
unsigned DiagCategory = 0;
if (DiagOpts.ShowCategories)
DiagCategory = DiagnosticIDs::getCategoryNumberForDiag(Info.getID());
// If there is any categorization information, include it.
if (!OptionName.empty() || DiagCategory != 0) {
bool NeedsComma = false;
OS << " [";
if (!OptionName.empty()) {
OS << OptionName;
NeedsComma = true;
}
// If the user wants to see category information, include it too.
if (DiagOpts.ShowCategories) {
unsigned DiagCategory =
DiagnosticIDs::getCategoryNumberForDiag(Info.getID());
if (DiagCategory) {
if (NeedsComma) OS << ',';
OS << (Started ? "," : " [");
if (DiagOpts.ShowCategories == 1)
OS << llvm::utostr(DiagCategory);
else {
@ -1150,9 +1145,8 @@ static void PrintDiagnosticOptions(raw_ostream &OS,
OS << DiagnosticIDs::getCategoryNameFromID(DiagCategory);
}
}
OS << "]";
}
OS << "]";
}
void TextDiagnosticPrinter::HandleDiagnostic(DiagnosticsEngine::Level Level,