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Implement Diagnostic::getWarningOptionForDiag with information from tblgen, 

this implements -fdiagnostics-show-option in clang-cc.

llvm-svn: 69271
This commit is contained in:
Chris Lattner 2009-04-16 06:00:24 +00:00
parent cce520f884
commit 6a64cc6776
1 changed files with 19 additions and 10 deletions
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29
clang/lib/Basic/Diagnostic.cpp
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@ -35,16 +35,17 @@ using namespace clang;
//===----------------------------------------------------------------------===//
// DefaultDiagnosticMappings - This specifies the default mapping for each diag,
// based on its kind. Yay for macros?
// based on its kind.
struct DefaultMappingInfo {
struct StaticDiagInfoRec {
unsigned DiagID : 14;
unsigned Mapping : 2;
const char *OptionGroup;
};
static const DefaultMappingInfo DefaultMappings[] = {
static const StaticDiagInfoRec StaticDiagInfo[] = {
#define DIAG(ENUM,CLASS,DEFAULT_MAPPING,DESC,GROUP) \
{ diag::ENUM, DEFAULT_MAPPING-1 },
{ diag::ENUM, DEFAULT_MAPPING-1, GROUP },
#include "clang/Basic/DiagnosticCommonKinds.inc"
#include "clang/Basic/DiagnosticDriverKinds.inc"
#include "clang/Basic/DiagnosticFrontendKinds.inc"
@ -53,16 +54,22 @@ static const DefaultMappingInfo DefaultMappings[] = {
#include "clang/Basic/DiagnosticASTKinds.inc"
#include "clang/Basic/DiagnosticSemaKinds.inc"
#include "clang/Basic/DiagnosticAnalysisKinds.inc"
{ 0, 0 }
{ 0, 0, 0 }
};
#undef DIAG
static unsigned GetDefaultDiagMapping(unsigned DiagID) {
static const StaticDiagInfoRec *GetDiagInfo(unsigned DiagID) {
// FIXME: Binary search.
for (unsigned i = 0, e = sizeof(DefaultMappings)/sizeof(DefaultMappings[0]);
for (unsigned i = 0, e = sizeof(StaticDiagInfo)/sizeof(StaticDiagInfo[0]);
i != e; ++i)
if (DefaultMappings[i].DiagID == DiagID)
return DefaultMappings[i].Mapping+1;
if (StaticDiagInfo[i].DiagID == DiagID)
return &StaticDiagInfo[i];
return 0;
}
static unsigned GetDefaultDiagMapping(unsigned DiagID) {
if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
return Info->Mapping+1;
return diag::MAP_FATAL;
}
@ -70,7 +77,9 @@ static unsigned GetDefaultDiagMapping(unsigned DiagID) {
/// enables the specified diagnostic. If there is no -Wfoo flag that controls
/// the diagnostic, this returns null.
const char *Diagnostic::getWarningOptionForDiag(unsigned DiagID) {
return 0; //"Wfoo";
if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
return Info->OptionGroup;
return 0;
}