static clang::CanQualType getClangBuiltinTypeFromTypedef(
clang::Sema &sema, StringRef typedefName) {
auto &context = sema.getASTContext();
auto identifier = &context.Idents.get(typedefName);
auto found = sema.LookupSingleName(sema.TUScope, identifier,
clang::SourceLocation(),
clang::Sema::LookupOrdinaryName);
auto typedefDecl = dyn_cast_or_null<clang::TypedefDecl>(found);
if (!typedefDecl)
return {};
auto underlyingTy =
context.getCanonicalType(typedefDecl->getUnderlyingType());
if (underlyingTy->getAs<clang::BuiltinType>())
return underlyingTy;
return {};
}
static void parseEnums(ClassDef &Def, bool isFlag, clang::Expr *Content, clang::Sema &Sema) {
clang::Preprocessor &PP = Sema.getPreprocessor();
clang::StringLiteral *Val = llvm::dyn_cast<clang::StringLiteral>(Content);
if (!Val) {
PP.getDiagnostics().Report(Content->getExprLoc(),
PP.getDiagnostics().getCustomDiagID(clang::DiagnosticsEngine::Error,
"Invalid Q_ENUMS annotation"));
return;
}
llvm::MemoryBuffer* Buf = maybe_unique(llvm::MemoryBuffer::getMemBufferCopy(Val->getString(), "Q_ENUMS"));
clang::Lexer Lex(CreateFileIDForMemBuffer(PP, Buf, Content->getExprLoc()),
Buf, PP.getSourceManager(), PP.getLangOpts());
clang::CXXScopeSpec SS;
clang::Token Tok, Next;
Lex.LexFromRawLexer(Tok);
for (; !Tok.is(clang::tok::eof); Tok = Next) {
Lex.LexFromRawLexer(Next);
clang::IdentifierInfo* II = nullptr;
if (Tok.is(clang::tok::raw_identifier))
II = PP.LookUpIdentifierInfo(Tok);
if (Tok.is(clang::tok::identifier)) {
if (Next.is(clang::tok::coloncolon)) {
if (Sema.ActOnCXXNestedNameSpecifier(Sema.getScopeForContext(Def.Record), *II,
GetFromLiteral(Tok, Val, PP), GetFromLiteral(Next, Val, PP), {}, false, SS))
SS.SetInvalid({GetFromLiteral(Tok, Val, PP), GetFromLiteral(Next, Val, PP)});
Lex.LexFromRawLexer(Next);
continue;
}
clang::LookupResult Found(Sema, II, GetFromLiteral(Tok, Val, PP), clang::Sema::LookupNestedNameSpecifierName);
if (SS.isEmpty())
Sema.LookupQualifiedName(Found, Def.Record);
else {
clang::DeclContext* DC = Sema.computeDeclContext(SS);
Sema.LookupQualifiedName(Found, DC ? DC : Def.Record);
}
llvm::StringRef Alias;
clang::EnumDecl* R = Found.getAsSingle<clang::EnumDecl>();
if (!R) {
if (clang::TypedefDecl *TD = Found.getAsSingle<clang::TypedefDecl>()) {
const clang::EnumType* ET = TD->getUnderlyingType()->getAs<clang::EnumType>();
const clang::TemplateSpecializationType* TDR = TD->getUnderlyingType()->getAs<clang::TemplateSpecializationType>();
if(TDR && TDR->getNumArgs() == 1 && TDR->getTemplateName().getAsTemplateDecl()->getName() == "QFlags")
ET = TDR->getArg(0).getAsType()->getAs<clang::EnumType>();
if (ET) {
R = ET->getDecl();
if (TD->getIdentifier())
Alias = TD->getName();
}
}
}
if (Found.empty() || !R) {
// TODO: typo correction
// This should be an error, but the official moc do not understand that as an error.
PP.getDiagnostics().Report(GetFromLiteral(Tok, Val, PP),
PP.getDiagnostics().getCustomDiagID(clang::DiagnosticsEngine::Warning,
"no enum names %0")) << Found.getLookupName();
break;
}
if (R->getDeclContext() == Def.Record) {
if (Alias.empty() && R->getIdentifier())
Alias = R->getName();
Def.addEnum(R, Alias.empty() ? R->getNameAsString() : std::string(Alias), isFlag);
} else if (R->getDeclContext()->isRecord() && llvm::isa<clang::CXXRecordDecl>(R->getDeclContext())) {
// TODO: check it is a QObject
Def.addExtra(llvm::cast<clang::CXXRecordDecl>(R->getDeclContext()));
}
SS.clear();
continue;
} else if (Tok.is(clang::tok::coloncolon)) {
if (SS.isEmpty()) {
SS.MakeGlobal(Sema.getASTContext(), GetFromLiteral(Tok, Val, PP));
continue;
}
}
PP.getDiagnostics().Report(GetFromLiteral(Tok, Val, PP),
PP.getDiagnostics().getCustomDiagID(clang::DiagnosticsEngine::Error,
"Invalid token in Q_ENUMS"));
break;
}
}