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AK: Add NonnullRefPtrVector<T>.
This is a slot-in convenience replacement for Vector<NonnullRefPtr<T>> that makes accessors return T& instead of NonnullRefPtr<T>&. Since NonnullRefPtr guarantees non-nullness, this allows you to access these vector elements using dot (.) rather than arrow (->). :^)
This commit is contained in:
Andreas Kling
parent
f83263a72b
commit
25a1bf0c90
Notes:
sideshowbarker
2024-07-19 13:28:41 +09:00
Author: https://github.com/awesomekling Commit: https://github.com/SerenityOS/serenity/commit/25a1bf0c907
35
AK/NonnullRefPtrVector.h
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35
AK/NonnullRefPtrVector.h
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@ -0,0 +1,35 @@
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#pragma once
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#include <AK/NonnullRefPtr.h>
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#include <AK/Vector.h>
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namespace AK {
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template<typename T, int inline_capacity = 0>
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class NonnullRefPtrVector : public Vector<NonnullRefPtr<T>, inline_capacity> {
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typedef Vector<NonnullRefPtr<T>> Base;
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public:
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NonnullRefPtrVector(Vector<NonnullRefPtr<T>>&& other)
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: Base(static_cast<Base&&>(other))
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{
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}
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NonnullRefPtrVector(const Vector<NonnullRefPtr<T>>& other)
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: Base(static_cast<const Base&>(other))
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{
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}
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using Base::size;
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T& at(int index) { return *Base::at(index); }
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const T& at(int index) const { return *Base::at(index); }
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T& operator[](int index) { return at(index); }
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const T& operator[](int index) const { return at(index); }
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T& first() { return at(0); }
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const T& first() const { return at(0); }
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T& last() { return at(size() - 1); }
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const T& last() const { return at(size() - 1); }
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};
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}
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using AK::NonnullRefPtrVector;
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158
AK/Vector.h
158
AK/Vector.h
@ -10,6 +10,86 @@
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namespace AK {
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template<typename T, int inline_capacity> class Vector;
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template<typename VectorType, typename ElementType>
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class VectorIterator {
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public:
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bool operator!=(const VectorIterator& other) { return m_index != other.m_index; }
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bool operator==(const VectorIterator& other) { return m_index == other.m_index; }
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bool operator<(const VectorIterator& other) { return m_index < other.m_index; }
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bool operator>(const VectorIterator& other) { return m_index > other.m_index; }
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bool operator>=(const VectorIterator& other) { return m_index >= other.m_index; }
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VectorIterator& operator++()
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{
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++m_index;
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return *this;
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}
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VectorIterator& operator--()
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{
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--m_index;
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return *this;
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}
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VectorIterator operator-(int value) { return { m_vector, m_index - value }; }
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VectorIterator operator+(int value) { return { m_vector, m_index + value }; }
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VectorIterator& operator=(const VectorIterator& other)
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{
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m_index = other.m_index;
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return *this;
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}
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ElementType& operator*() { return m_vector[m_index]; }
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int operator-(const VectorIterator& other) { return m_index - other.m_index; }
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private:
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friend VectorType;
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VectorIterator(VectorType& vector, int index)
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: m_vector(vector)
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, m_index(index)
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{
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}
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VectorType& m_vector;
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int m_index { 0 };
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};
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template<typename VectorType, typename ElementType>
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class ConstVectorIterator {
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public:
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bool operator!=(const ConstVectorIterator& other) { return m_index != other.m_index; }
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bool operator==(const ConstVectorIterator& other) { return m_index == other.m_index; }
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bool operator<(const ConstVectorIterator& other) { return m_index < other.m_index; }
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bool operator>(const ConstVectorIterator& other) { return m_index > other.m_index; }
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bool operator>=(const ConstVectorIterator& other) { return m_index >= other.m_index; }
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ConstVectorIterator& operator++()
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{
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++m_index;
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return *this;
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}
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ConstVectorIterator& operator--()
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{
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--m_index;
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return *this;
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}
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ConstVectorIterator operator-(int value) { return { m_vector, m_index - value }; }
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ConstVectorIterator operator+(int value) { return { m_vector, m_index + value }; }
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ConstVectorIterator& operator=(const ConstVectorIterator& other)
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{
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m_index = other.m_index;
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return *this;
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}
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const ElementType& operator*() const { return m_vector[m_index]; }
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int operator-(const ConstVectorIterator& other) { return m_index - other.m_index; }
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private:
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friend VectorType;
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ConstVectorIterator(const VectorType& vector, const int index)
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: m_vector(vector)
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, m_index(index)
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{
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}
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const VectorType& m_vector;
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int m_index { 0 };
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};
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template<typename T, int inline_capacity = 0>
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class Vector {
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public:
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@ -332,85 +412,11 @@ public:
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m_size = new_size;
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}
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class Iterator {
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public:
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bool operator!=(const Iterator& other) { return m_index != other.m_index; }
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bool operator==(const Iterator& other) { return m_index == other.m_index; }
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bool operator<(const Iterator& other) { return m_index < other.m_index; }
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bool operator>(const Iterator& other) { return m_index > other.m_index; }
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bool operator>=(const Iterator& other) { return m_index >= other.m_index; }
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Iterator& operator++()
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{
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++m_index;
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return *this;
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}
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Iterator& operator--()
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{
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--m_index;
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return *this;
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}
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Iterator operator-(int value) { return { m_vector, m_index - value }; }
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Iterator operator+(int value) { return { m_vector, m_index + value }; }
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Iterator& operator=(const Iterator& other)
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{
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m_index = other.m_index;
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return *this;
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}
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T& operator*() { return m_vector[m_index]; }
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int operator-(const Iterator& other) { return m_index - other.m_index; }
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private:
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friend class Vector;
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Iterator(Vector& vector, int index)
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: m_vector(vector)
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, m_index(index)
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{
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}
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Vector& m_vector;
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int m_index { 0 };
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};
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using Iterator = VectorIterator<Vector, T>;
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Iterator begin() { return Iterator(*this, 0); }
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Iterator end() { return Iterator(*this, size()); }
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class ConstIterator {
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public:
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bool operator!=(const ConstIterator& other) { return m_index != other.m_index; }
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bool operator==(const ConstIterator& other) { return m_index == other.m_index; }
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bool operator<(const ConstIterator& other) { return m_index < other.m_index; }
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bool operator>(const ConstIterator& other) { return m_index > other.m_index; }
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bool operator>=(const ConstIterator& other) { return m_index >= other.m_index; }
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ConstIterator& operator++()
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{
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++m_index;
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return *this;
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}
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ConstIterator& operator--()
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{
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--m_index;
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return *this;
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}
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ConstIterator operator-(int value) { return { m_vector, m_index - value }; }
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ConstIterator operator+(int value) { return { m_vector, m_index + value }; }
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ConstIterator& operator=(const ConstIterator& other)
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{
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m_index = other.m_index;
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return *this;
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}
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const T& operator*() const { return m_vector[m_index]; }
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int operator-(const ConstIterator& other) { return m_index - other.m_index; }
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private:
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friend class Vector;
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ConstIterator(const Vector& vector, const int index)
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: m_vector(vector)
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, m_index(index)
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{
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}
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const Vector& m_vector;
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int m_index { 0 };
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};
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using ConstIterator = ConstVectorIterator<Vector, T>;
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ConstIterator begin() const { return ConstIterator(*this, 0); }
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ConstIterator end() const { return ConstIterator(*this, size()); }
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