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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
Kernel/Library/ThreadSafeWeakPtr.h
View file

@ -18,27 +18,27 @@ 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;
@ -51,21 +51,21 @@ 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 try_make_weak_ptr<U>().release_value_but_fixme_should_propagate_errors().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 try_make_weak_ptr<U>().release_value_but_fixme_should_propagate_errors().take_link();
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr(const RefPtr<U>& object)
template<typename U>
WeakPtr(const RefPtr<U>& object) requires(IsBaseOf<T, U>)
{
object.do_while_locked([&](U* obj) {
if (obj)
@ -73,8 +73,8 @@ public:
});
}
template<typename U, typename EnableIf<IsBaseOf<T, U>>::Type* = nullptr>
WeakPtr(const NonnullRefPtr<U>& object)
template<typename U>
WeakPtr(const NonnullRefPtr<U>& object) requires(IsBaseOf<T, U>)
{
object.do_while_locked([&](U* obj) {
if (obj)
@ -82,15 +82,15 @@ public:
});
}
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 try_make_weak_ptr<U>().release_value_but_fixme_should_propagate_errors().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 try_make_weak_ptr<U>().release_value_but_fixme_should_propagate_errors().take_link();
@ -99,8 +99,8 @@ 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>)
{
object.do_while_locked([&](U* obj) {
if (obj)
@ -111,8 +111,8 @@ 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>)
{
object.do_while_locked([&](U* obj) {
if (obj)