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AK: Simplify constructors and conversions from nullptr_t
Problem: - Many constructors are defined as `{}` rather than using the ` = default` compiler-provided constructor. - Some types provide an implicit conversion operator from `nullptr_t` instead of requiring the caller to default construct. This violates the C++ Core Guidelines suggestion to declare single-argument constructors explicit (https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#c46-by-default-declare-single-argument-constructors-explicit). Solution: - Change default constructors to use the compiler-provided default constructor. - Remove implicit conversion operators from `nullptr_t` and change usage to enforce type consistency without conversion.
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105 changed files with 300 additions and 244 deletions
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@ -143,7 +143,7 @@ public:
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Adopt
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};
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RefPtr() { }
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RefPtr() = default;
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RefPtr(const T* ptr)
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: m_bits(PtrTraits::as_bits(const_cast<T*>(ptr)))
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{
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@ -205,7 +205,6 @@ public:
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m_bits.store(0xe0e0e0e0, AK::MemoryOrder::memory_order_relaxed);
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#endif
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}
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RefPtr(std::nullptr_t) { }
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template<typename U>
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RefPtr(const OwnPtr<U>&) = delete;
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