void VisitDeclRefExpr(DeclRefExpr *Node) {
ValueDecl* decl = Node->getDecl();
if (isa<EnumConstantDecl>(decl)) {
EnumConstantDecl* ecdecl = cast<EnumConstantDecl>(decl);
if (ecdecl->getInitVal() < 0) {
OS << "(- ";
OS << (-(ecdecl->getInitVal())).toString(10);
OS << ")";
} else {
OS << ecdecl->getInitVal().toString(10);
}
} else {
OS << Node->getNameInfo();
}
}
static bool UseNSOptionsMacro(ASTContext &Ctx,
const EnumDecl *EnumDcl) {
bool PowerOfTwo = true;
for (EnumDecl::enumerator_iterator EI = EnumDcl->enumerator_begin(),
EE = EnumDcl->enumerator_end(); EI != EE; ++EI) {
EnumConstantDecl *Enumerator = (*EI);
const Expr *InitExpr = Enumerator->getInitExpr();
if (!InitExpr) {
PowerOfTwo = false;
continue;
}
InitExpr = InitExpr->IgnoreImpCasts();
if (const BinaryOperator *BO = dyn_cast<BinaryOperator>(InitExpr))
if (BO->isShiftOp() || BO->isBitwiseOp())
return true;
uint64_t EnumVal = Enumerator->getInitVal().getZExtValue();
if (PowerOfTwo && EnumVal && !llvm::isPowerOf2_64(EnumVal))
PowerOfTwo = false;
}
return PowerOfTwo;
}
