llvm::DIType CGDebugInfo::CreateType(const EnumType *Ty,
llvm::DICompileUnit Unit) {
EnumDecl *Decl = Ty->getDecl();
llvm::SmallVector<llvm::DIDescriptor, 32> Enumerators;
// Create DIEnumerator elements for each enumerator.
for (EnumDecl::enumerator_iterator
Enum = Decl->enumerator_begin(M->getContext()),
EnumEnd = Decl->enumerator_end(M->getContext());
Enum != EnumEnd; ++Enum) {
Enumerators.push_back(DebugFactory.CreateEnumerator(Enum->getNameAsString(),
Enum->getInitVal().getZExtValue()));
}
// Return a CompositeType for the enum itself.
llvm::DIArray EltArray =
DebugFactory.GetOrCreateArray(&Enumerators[0], Enumerators.size());
std::string EnumName = Decl->getNameAsString();
SourceLocation DefLoc = Decl->getLocation();
llvm::DICompileUnit DefUnit = getOrCreateCompileUnit(DefLoc);
SourceManager &SM = M->getContext().getSourceManager();
unsigned Line = SM.getInstantiationLineNumber(DefLoc);
// Size and align of the type.
uint64_t Size = M->getContext().getTypeSize(Ty);
unsigned Align = M->getContext().getTypeAlign(Ty);
return DebugFactory.CreateCompositeType(llvm::dwarf::DW_TAG_enumeration_type,
Unit, EnumName, DefUnit, Line,
Size, Align, 0, 0,
llvm::DIType(), EltArray);
}
void FindBadConstructsConsumer::CheckChromeEnum(SourceLocation enum_location,
EnumDecl* enum_decl) {
if (!options_.check_enum_last_value)
return;
bool got_one = false;
bool is_signed = false;
llvm::APSInt max_so_far;
EnumDecl::enumerator_iterator iter;
for (iter = enum_decl->enumerator_begin();
iter != enum_decl->enumerator_end();
++iter) {
llvm::APSInt current_value = iter->getInitVal();
if (!got_one) {
max_so_far = current_value;
is_signed = current_value.isSigned();
got_one = true;
} else {
if (is_signed != current_value.isSigned()) {
// This only happens in some cases when compiling C (not C++) files,
// so it is OK to bail out here.
return;
}
if (current_value > max_so_far)
max_so_far = current_value;
}
}
for (iter = enum_decl->enumerator_begin();
iter != enum_decl->enumerator_end();
++iter) {
std::string name = iter->getNameAsString();
if (((name.size() > 4 && name.compare(name.size() - 4, 4, "Last") == 0) ||
(name.size() > 5 && name.compare(name.size() - 5, 5, "_LAST") == 0)) &&
iter->getInitVal() < max_so_far) {
diagnostic().Report(iter->getLocation(), diag_bad_enum_last_value_);
}
}
}