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AK: Improve smart pointer ergonomics a bit.

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This commit is contained in:
Andreas Kling 2019-04-14 02:36:06 +02:00
parent d5dec1922b
commit 3f6408919f
17 changed files with 49 additions and 31 deletions
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23
AK/RetainPtr.h
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@ -53,6 +53,14 @@ public:
return *this;
}
template<typename U>
RetainPtr& operator=(Retained<U>&& other)
{
release_if_not_null(m_ptr);
m_ptr = &other.leak_ref();
return *this;
}
RetainPtr& operator=(T* ptr)
{
if (m_ptr != ptr)
@ -90,9 +98,6 @@ public:
bool operator!() const { return !m_ptr; }
typedef T* RetainPtr::*UnspecifiedBoolType;
operator UnspecifiedBoolType() const { return m_ptr ? &RetainPtr::m_ptr : nullptr; }
T* leak_ref()
{
T* leakedPtr = m_ptr;
@ -109,8 +114,20 @@ public:
T& operator*() { return *m_ptr; }
const T& operator*() const { return *m_ptr; }
operator const T*() const { return m_ptr; }
operator T*() { return m_ptr; }
operator bool() { return !!m_ptr; }
bool operator==(std::nullptr_t) const { return !m_ptr; }
bool operator!=(std::nullptr_t) const { return m_ptr; }
bool operator==(const RetainPtr& other) const { return m_ptr == other.m_ptr; }
bool operator!=(const RetainPtr& other) const { return m_ptr != other.m_ptr; }
bool operator==(const T* other) const { return m_ptr == other; }
bool operator!=(const T* other) const { return m_ptr != other; }
bool is_null() const { return !m_ptr; }
private: