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Everywhere: Switch from EnableIf to requires

Browse source 
C++20 provides the `requires` clause which simplifies the ability to
limit overload resolution. Prefer it over `EnableIf`

With all uses of `EnableIf` being removed, also remove the
implementation so future devs are not tempted.
This commit is contained in:
Lenny Maiorani 2022-03-17 11:29:46 -06:00 • committed by Brian Gianforcaro
parent 8f7219c6fa
commit 2844f7c333
9 changed files with 63 additions and 73 deletions
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48
AK/WeakPtr.h
View file

@ -22,27 +22,27 @@ class [[nodiscard]] WeakPtr {
public:
WeakPtr() = default;
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr(const WeakPtr<U>& other)
template<typename U>
WeakPtr(const WeakPtr<U>& other) requires(IsBaseOf<T, U>)
: m_link(other.m_link)
{
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr(WeakPtr<U>&& other)
template<typename U>
WeakPtr(WeakPtr<U>&& other) requires(IsBaseOf<T, U>)
: m_link(other.take_link())
{
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr& operator=(WeakPtr<U>&& other)
template<typename U>
WeakPtr& operator=(WeakPtr<U>&& other) requires(IsBaseOf<T, U>)
{
m_link = other.take_link();
return *this;
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr& operator=(const WeakPtr<U>& other)
template<typename U>
WeakPtr& operator=(const WeakPtr<U>& other) requires(IsBaseOf<T, U>)
{
if ((const void*)this != (const void*)&other)
m_link = other.m_link;
@ -55,41 +55,41 @@ public:
return *this;
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr(const U& object)
template<typename U>
WeakPtr(const U& object) requires(IsBaseOf<T, U>)
: m_link(object.template make_weak_ptr<U>().take_link())
{
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr(const U* object)
template<typename U>
WeakPtr(const U* object) requires(IsBaseOf<T, U>)
{
if (object)
m_link = object->template make_weak_ptr<U>().take_link();
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr(RefPtr<U> const& object)
template<typename U>
WeakPtr(RefPtr<U> const& object) requires(IsBaseOf<T, U>)
{
if (object)
m_link = object->template make_weak_ptr<U>().take_link();
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr(NonnullRefPtr<U> const& object)
template<typename U>
WeakPtr(NonnullRefPtr<U> const& object) requires(IsBaseOf<T, U>)
{
m_link = object->template make_weak_ptr<U>().take_link();
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr& operator=(const U& object)
template<typename U>
WeakPtr& operator=(const U& object) requires(IsBaseOf<T, U>)
{
m_link = object.template make_weak_ptr<U>().take_link();
return *this;
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr& operator=(const U* object)
template<typename U>
WeakPtr& operator=(const U* object) requires(IsBaseOf<T, U>)
{
if (object)
m_link = object->template make_weak_ptr<U>().take_link();
@ -98,8 +98,8 @@ public:
return *this;
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr& operator=(const RefPtr<U>& object)
template<typename U>
WeakPtr& operator=(const RefPtr<U>& object) requires(IsBaseOf<T, U>)
{
if (object)
m_link = object->template make_weak_ptr<U>().take_link();
@ -108,8 +108,8 @@ public:
return *this;
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr& operator=(const NonnullRefPtr<U>& object)
template<typename U>
WeakPtr& operator=(const NonnullRefPtr<U>& object) requires(IsBaseOf<T, U>)
{
m_link = object->template make_weak_ptr<U>().take_link();
return *this;