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https://github.com/RGBCube/serenity
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Start using WeakPtr for some of the WindowManager window pointers.
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parent
16fff6dff7
commit
560405667e
5 changed files with 29 additions and 8 deletions
19
AK/WeakPtr.h
19
AK/WeakPtr.h
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@ -11,11 +11,28 @@ public:
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WeakPtr() { }
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WeakPtr(std::nullptr_t) { }
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template<typename U>
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WeakPtr& operator=(WeakPtr<U>&& other)
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{
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m_link = reinterpret_cast<WeakLink<T>*>(other.leakLink());
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return *this;
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}
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operator bool() const { return ptr(); }
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T* ptr() { return m_link ? m_link->ptr() : nullptr; }
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const T* ptr() const { return m_link ? m_link->ptr() : nullptr; }
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T* operator->() { return ptr(); }
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const T* operator->() const { return ptr(); }
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T& operator*() { return *ptr(); }
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const T& operator*() const { return *ptr(); }
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bool isNull() const { return !m_link || !m_link->ptr(); }
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void clear() { m_link = nullptr; }
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WeakLink<T>* leakLink() { return m_link.leakRef(); }
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private:
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WeakPtr(RetainPtr<WeakLink<T>>&& link) : m_link(std::move(link)) { }
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@ -27,7 +44,7 @@ template<typename T>
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inline WeakPtr<T> Weakable<T>::makeWeakPtr()
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{
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if (!m_link)
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m_link = adopt(*new WeakLink<T>(*this));
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m_link = adopt(*new WeakLink<T>(static_cast<T&>(*this)));
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return WeakPtr<T>(m_link.copyRef());
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}
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