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fix PR6814 - Only print [-pedantic] on a diagnostic if -pedantic 

actually turned it on.  If a diag is produced by a warning which
is an extension but defaults to on, and has no warning group, don't
print any option info.

llvm-svn: 101071
This commit is contained in:
Chris Lattner 2010-04-12 21:53:11 +00:00
parent 4ed2925b91
commit 97a8e43a02
3 changed files with 31 additions and 8 deletions
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15
clang/include/clang/Basic/Diagnostic.h
View File

@ -388,7 +388,18 @@ public:
/// isBuiltinExtensionDiag - Determine whether the given built-in diagnostic
/// ID is for an extension of some sort.
///
static bool isBuiltinExtensionDiag(unsigned DiagID);
static bool isBuiltinExtensionDiag(unsigned DiagID) {
bool ignored;
return isBuiltinExtensionDiag(DiagID, ignored);
}
/// isBuiltinExtensionDiag - Determine whether the given built-in diagnostic
/// ID is for an extension of some sort. This also returns EnabledByDefault,
/// which is set to indicate whether the diagnostic is ignored by default (in
/// which case -pedantic enables it) or treated as a warning/error by default.
///
static bool isBuiltinExtensionDiag(unsigned DiagID, bool &EnabledByDefault);
/// getWarningOptionForDiag - Return the lowest-level warning option that
/// enables the specified diagnostic. If there is no -Wfoo flag that controls
@ -478,7 +489,7 @@ private:
/// getDiagnosticMappingInfo - Return the mapping info currently set for the
/// specified builtin diagnostic. This returns the high bit encoding, or zero
/// if the field is completely uninitialized.
unsigned getDiagnosticMappingInfo(diag::kind Diag) const {
diag::Mapping getDiagnosticMappingInfo(diag::kind Diag) const {
const DiagMappings &currentMappings = DiagMappingsStack.back();
return (diag::Mapping)((currentMappings[Diag/2] >> (Diag & 1)*4) & 15);
}

15
clang/lib/Basic/Diagnostic.cpp
View File

@ -287,11 +287,18 @@ bool Diagnostic::isBuiltinNote(unsigned DiagID) {
}
/// isBuiltinExtensionDiag - Determine whether the given built-in diagnostic
/// ID is for an extension of some sort.
/// ID is for an extension of some sort. This also returns EnabledByDefault,
/// which is set to indicate whether the diagnostic is ignored by default (in
/// which case -pedantic enables it) or treated as a warning/error by default.
///
bool Diagnostic::isBuiltinExtensionDiag(unsigned DiagID) {
return DiagID < diag::DIAG_UPPER_LIMIT &&
getBuiltinDiagClass(DiagID) == CLASS_EXTENSION;
bool Diagnostic::isBuiltinExtensionDiag(unsigned DiagID,
bool &EnabledByDefault) {
if (DiagID >= diag::DIAG_UPPER_LIMIT ||
getBuiltinDiagClass(DiagID) != CLASS_EXTENSION)
return false;
EnabledByDefault = StaticDiagInfo[DiagID].Mapping != diag::MAP_IGNORE;
return true;
}

9
clang/lib/Frontend/TextDiagnosticPrinter.cpp
View File

@ -796,8 +796,13 @@ void TextDiagnosticPrinter::HandleDiagnostic(Diagnostic::Level Level,
OutStr += " [-W";
OutStr += Opt;
OutStr += ']';
} else if (Diagnostic::isBuiltinExtensionDiag(Info.getID())) {
OutStr += " [-pedantic]";
} 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 (Diagnostic::isBuiltinExtensionDiag(Info.getID(), EnabledByDefault) &&
!EnabledByDefault)
OutStr += " [-pedantic]";
}
}