Weak
};
+ ValueHandleBase(const ValueHandleBase &RHS)
+ : ValueHandleBase(RHS.PrevPair.getInt(), RHS) {}
+
+ ValueHandleBase(HandleBaseKind Kind, const ValueHandleBase &RHS)
+ : PrevPair(nullptr, Kind), Next(nullptr), V(RHS.V) {
+ if (isValid(V))
+ AddToExistingUseList(RHS.getPrevPtr());
+ }
+
private:
PointerIntPair<ValueHandleBase**, 2, HandleBaseKind> PrevPair;
ValueHandleBase *Next;
Value* V;
- ValueHandleBase(const ValueHandleBase&) LLVM_DELETED_FUNCTION;
public:
explicit ValueHandleBase(HandleBaseKind Kind)
: PrevPair(nullptr, Kind), Next(nullptr), V(nullptr) {}
if (isValid(V))
AddToUseList();
}
- ValueHandleBase(HandleBaseKind Kind, const ValueHandleBase &RHS)
- : PrevPair(nullptr, Kind), Next(nullptr), V(RHS.V) {
- if (isValid(V))
- AddToExistingUseList(RHS.getPrevPtr());
- }
+
~ValueHandleBase() {
if (isValid(V))
RemoveFromUseList();
WeakVH(const WeakVH &RHS)
: ValueHandleBase(Weak, RHS) {}
+ WeakVH &operator=(const WeakVH &RHS) = default;
+
Value *operator=(Value *RHS) {
return ValueHandleBase::operator=(RHS);
}
// Specialize simplify_type to allow WeakVH to participate in
// dyn_cast, isa, etc.
-template<> struct simplify_type<WeakVH> {
- typedef Value* SimpleType;
- static SimpleType getSimplifiedValue(WeakVH &WVH) {
- return WVH;
- }
+template <> struct simplify_type<WeakVH> {
+ typedef Value *SimpleType;
+ static SimpleType getSimplifiedValue(WeakVH &WVH) { return WVH; }
+};
+template <> struct simplify_type<const WeakVH> {
+ typedef Value *SimpleType;
+ static SimpleType getSimplifiedValue(const WeakVH &WVH) { return WVH; }
};
/// \brief Value handle that asserts if the Value is deleted.
public:
TrackingVH() : ValueHandleBase(Tracking) {}
TrackingVH(ValueTy *P) : ValueHandleBase(Tracking, GetAsValue(P)) {}
- TrackingVH(const TrackingVH &RHS) : ValueHandleBase(Tracking, RHS) {}
operator ValueTy*() const {
return getValPtr();
setValPtr(RHS);
return getValPtr();
}
- ValueTy *operator=(const TrackingVH<ValueTy> &RHS) {
- setValPtr(RHS.getValPtr());
- return getValPtr();
- }
ValueTy *operator->() const { return getValPtr(); }
ValueTy &operator*() const { return *getValPtr(); }
/// when the underlying Value has RAUW called on it or is destroyed. This
/// class can be used as the key of a map, as long as the user takes it out of
/// the map before calling setValPtr() (since the map has to rearrange itself
-/// when the pointer changes). Unlike ValueHandleBase, this class has a vtable
-/// and a virtual destructor.
+/// when the pointer changes). Unlike ValueHandleBase, this class has a vtable.
class CallbackVH : public ValueHandleBase {
virtual void anchor();
protected:
- CallbackVH(const CallbackVH &RHS)
- : ValueHandleBase(Callback, RHS) {}
-
- virtual ~CallbackVH() {}
+ ~CallbackVH() = default;
+ CallbackVH(const CallbackVH &) = default;
+ CallbackVH &operator=(const CallbackVH &) = default;
void setValPtr(Value *P) {
ValueHandleBase::operator=(P);