Adds OptionalUniquePtrList
continuous-integration/drone/push Build is passing Details

This commit is contained in:
Deukhoofd 2020-12-12 11:53:32 +01:00
parent 9f064c1e25
commit a972162d6e
Signed by: Deukhoofd
GPG Key ID: F63E044490819F6F
3 changed files with 163 additions and 4 deletions

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@ -4,6 +4,7 @@
#include "__BorrowedPtr.hpp"
#include "__OptionalBorrowedPtr.hpp"
#include "__OptionalUniquePtr.hpp"
#include "__OptionalUniquePtrList.hpp"
#include "__UniquePtr.hpp"
#include "__UniquePtrList.hpp"

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@ -0,0 +1,147 @@
#ifndef ARBUTILS___OPTIONALUNIQUEPTRLIST_HPP
#define ARBUTILS___OPTIONALUNIQUEPTRLIST_HPP
#include "__OptionalBorrowedPtr.hpp"
namespace ArbUt {
/// @brief Collection of pointers that is owned by the list. When the list exits scope, the destructor on all
/// pointers will be called.
template <class ValueT> class UniquePtrList {
private:
std::vector<ValueT*> _vector;
using iterator = typename std::vector<ValueT*>::iterator;
using const_iterator = typename std::vector<ValueT*>::const_iterator;
public:
inline UniquePtrList() noexcept : _vector() {}
/// @brief Initialises a UniquePtrList from a std::vector of raw pointers.
/// @param vec A std::vector of raw pointers.
inline UniquePtrList(const std::vector<ValueT*>& vec) noexcept : _vector(vec) {}
/// @brief Initialises a UniquePtrList with a certain capacity reserved for use. This does not set immediate
/// size.
/// @param capacity The desired capacity.
explicit inline UniquePtrList(size_t capacity) : _vector() { _vector.reserve(capacity); }
/// @brief Initialises a UniquePtrList from a initialiser_list.
/// @param l A initialiser_list
inline UniquePtrList(const std::initializer_list<ValueT*>& l) noexcept : _vector(l) {}
/// @brief Initialises a UniquePtrList from a raw pointer range.
/// @param begin The raw pointer to the start of the list.
/// @param end The raw pointer to the end of the list.
inline UniquePtrList(ValueT* const* begin, ValueT* const* end) noexcept : _vector(begin, end) {}
UniquePtrList(const UniquePtrList<ValueT>&) = delete;
UniquePtrList<ValueT>& operator=(const UniquePtrList<ValueT>&) = delete;
~UniquePtrList() noexcept { Clear(); }
/// @brief Clears the UniquePtrList, and run the destructor on all containing pointers.
inline void Clear() noexcept {
for (auto& i : _vector) {
delete i;
}
}
/// @brief Borrow a pointer at a certain index.
/// @param index The index to retrieve.
/// @return A borrowed pointer reference to the containing raw pointer.
inline OptionalBorrowedPtr<ValueT> At(size_t index) const {
#ifndef NO_ASSERT
if (index >= _vector.size()) {
std::stringstream ss;
ss << "Index " << index << " is out of bounds.";
throw ArbUt::Exception(ss.str());
}
#endif
return _vector[index];
}
/// @brief Returns a raw pointer at an index, and releases ownership. Proper handling of the memory is assumed
/// to be done by the taker.
/// @param index The index to get the pointer from.
/// @return A raw pointer.
ValueT* TakeOwnership(size_t index) {
auto p = _vector[index];
_vector[index] = nullptr;
return p;
}
/// @brief Swaps two pointers at indices with each other.
/// @param indexA The first index to swap from.
/// @param indexB The second index to swap from
void Swap(size_t indexA, size_t indexB) {
auto temp = _vector[indexA];
_vector[indexA] = _vector[indexB];
_vector[indexB] = temp;
}
/// @brief Sets a pointer to a certain index. If an item already existed at that index, it's destructor will be
/// called.
/// @param index The index to set the pointer to.
/// @param ptr The pointer to store.
void Set(size_t index, ValueT* ptr) {
delete _vector[index];
_vector[index] = ptr;
}
/// @brief Removes a pointer at a certain index. It's destructor will be called.
/// @param index The index to remove.
inline void Remove(size_t index) {
#ifndef NO_ASSERT
if (index >= _vector.size()) {
std::stringstream ss;
ss << "Index " << index << " is out of bounds.";
throw ArbUt::Exception(ss.str());
}
#endif
delete _vector[index];
_vector.erase(_vector.begin() + index);
}
/// @brief Check whether a pointer is contained in the list.
/// @param value The value to check for.
/// @return True if the list contains the pointer, false otherwise.
inline bool Contains(const BorrowedPtr<ValueT>& value) const noexcept {
return std::find(_vector.begin(), _vector.end(), value) != _vector.end();
}
/// @brief Find the index of the first occurrence of a value in the list, return -1 if none is found.
/// @param value The value we want the index for.
/// @return The index of the first occurrence of the value in the list, or -1 if none is found.
inline size_t IndexOf(const BorrowedPtr<ValueT>& value) const noexcept {
const auto& it = std::find(_vector.begin(), _vector.end(), value);
if (it == _vector.end())
return -1;
return std::distance(_vector.begin(), it);
}
/// @brief Append a pointer to the list.
/// @param value The pointer to push to the list.
inline void Append(ValueT* value) { _vector.push_back(value); }
/// @brief Borrow a pointer at a certain index.
/// @param index The index to retrieve.
/// @return A borrowed pointer reference to the containing raw pointer.
inline OptionalBorrowedPtr<ValueT> operator[](size_t index) const { return At(index); }
/// @brief Returns the number of pointers contained.
/// @return The number of pointers contained.
[[nodiscard]] inline size_t Count() const noexcept { return _vector.size(); }
/// @brief returns an iterator to the beginning of the specified bucket
iterator begin() noexcept { return _vector.begin(); }
/// @brief returns an iterator to the beginning of the specified bucket
iterator end() noexcept { return _vector.end(); }
/// @brief returns an iterator to the end of the specified bucket
const_iterator begin() const noexcept { return _vector.begin(); }
/// @brief returns an iterator to the end of the specified bucket
const_iterator end() const noexcept { return _vector.end(); }
/// @brief Return a raw pointer to the beginning of the list.
/// @return A raw array pointer to the beginning of the list.
ValueT* const* RawData() const noexcept { return _vector.data(); }
/// @brief Returns a std::vector representation of the current list.
/// @return A std::vector representation of the current list.
const std::vector<ValueT*>& GetStdList() const noexcept { return _vector; }
/// @brief Returns a std::vector representation of the current list.
/// @return A std::vector representation of the current list.
std::vector<ValueT*>& GetStdList() noexcept { return _vector; }
};
}
#endif // ARBUTILS___OPTIONALUNIQUEPTRLIST_HPP

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@ -2,6 +2,7 @@
#define ARBUTILS___UNIQUEPTRLIST_HPP
#include "__BorrowedPtr.hpp"
#include "../Assert.hpp"
namespace ArbUt {
/// @brief Collection of pointers that is owned by the list. When the list exits scope, the destructor on all
@ -16,18 +17,24 @@ namespace ArbUt {
inline UniquePtrList() noexcept : _vector() {}
/// @brief Initialises a UniquePtrList from a std::vector of raw pointers.
/// @param vec A std::vector of raw pointers.
inline UniquePtrList(const std::vector<ValueT*>& vec) noexcept : _vector(vec) {}
inline UniquePtrList(const std::vector<ValueT*>& vec) noexcept : _vector(vec) {
AssertAllNotNull(vec);
}
/// @brief Initialises a UniquePtrList with a certain capacity reserved for use. This does not set immediate
/// size.
/// @param capacity The desired capacity.
explicit inline UniquePtrList(size_t capacity) : _vector() { _vector.reserve(capacity); }
/// @brief Initialises a UniquePtrList from a initialiser_list.
/// @param l A initialiser_list
inline UniquePtrList(const std::initializer_list<ValueT*>& l) noexcept : _vector(l) {}
inline UniquePtrList(const std::initializer_list<ValueT*>& l) noexcept : _vector(l) {
AssertAllNotNull(_vector);
}
/// @brief Initialises a UniquePtrList from a raw pointer range.
/// @param begin The raw pointer to the start of the list.
/// @param end The raw pointer to the end of the list.
inline UniquePtrList(ValueT* const* begin, ValueT* const* end) noexcept : _vector(begin, end) {}
inline UniquePtrList(ValueT* const* begin, ValueT* const* end) noexcept : _vector(begin, end) {
AssertAllNotNull(_vector);
}
UniquePtrList(const UniquePtrList<ValueT>&) = delete;
UniquePtrList<ValueT>& operator=(const UniquePtrList<ValueT>&) = delete;
@ -75,6 +82,7 @@ namespace ArbUt {
/// @param index The index to set the pointer to.
/// @param ptr The pointer to store.
void Set(size_t index, ValueT* ptr) {
AssertNotNull(ptr);
delete _vector[index];
_vector[index] = ptr;
}
@ -112,7 +120,10 @@ namespace ArbUt {
/// @brief Append a pointer to the list.
/// @param value The pointer to push to the list.
inline void Append(ValueT* value) { _vector.push_back(value); }
inline void Append(ValueT* value) {
AssertNotNull(value);
_vector.push_back(value);
}
/// @brief Borrow a pointer at a certain index.
/// @param index The index to retrieve.
/// @return A borrowed pointer reference to the containing raw pointer.