GCC Code Coverage Report

Directory: ./
File: include/CXXIter/src/Collector.h
Date: 2023-01-04 16:32:12
Exec Total Coverage
Lines: 21 21 100.0%
Functions: 232 232 100.0%
Branches: 9 16 56.2%
Line Branch Exec Source
1 #pragma once
2
3 #include <tuple>
4 #include <type_traits>
5
6 #include "Common.h"
7
8 namespace CXXIter {
9
10 // ################################################################################################
11 // INTO COLLECTOR
12 // ################################################################################################
13 /** @private */
14 template<typename TChainInput, typename TContainer>
15 struct IntoCollector {};
16 /** @private */
17 template<typename TChainInput, typename TContainer>
18 requires util::BackInsertableContainer<TContainer, typename TChainInput::ItemOwned>
19 struct IntoCollector<TChainInput, TContainer> {
20 using Item = typename TChainInput::Item;
21
22 274 static constexpr void collectInto(TChainInput& input, TContainer& container) {
23 if constexpr(util::ReservableContainer<TContainer>) {
24
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 250 container.reserve( container.size() + input.sizeHint().expectedResultSize() );
25 }
26 1899 input.forEach([&container](Item&& item) { container.push_back( std::forward<Item>(item) ); });
27 272 }
28 };
29 /** @private */
30 template<typename TChainInput, typename TContainer>
31 requires (!util::BackInsertableContainer<TContainer, typename TChainInput::ItemOwned>)
32 && util::InsertableContainer<TContainer, typename TChainInput::ItemOwned>
33 struct IntoCollector<TChainInput, TContainer> {
34 using Item = typename TChainInput::Item;
35
36 86 static constexpr void collectInto(TChainInput& input, TContainer& container) {
37 if constexpr(util::ReservableContainer<TContainer>) {
38
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 50 container.reserve( container.size() + input.sizeHint().expectedResultSize() );
39 }
40 206 input.forEach([&container](Item&& item) { container.insert( std::forward<Item>(item) ); });
41 86 }
42 };
43 /** @private */
44 template<typename TChainInput, typename TContainer>
45 requires util::StdArrayContainer<TContainer, typename TChainInput::ItemOwned>
46 struct IntoCollector<TChainInput, TContainer> {
47 using Item = typename TChainInput::Item;
48
49 10 static constexpr void collectInto(TChainInput& input, TContainer& container) {
50 10 size_t idx = 0;
51 input
52
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 10 .take(container.max_size())
53
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 25 .forEach([&idx, &container](Item&& item) { container[idx++] = item; });
54 10 }
55 };
56
57
58 // ################################################################################################
59 // COLLECTOR
60 // ################################################################################################
61 /** @private */
62 template<typename TChainInput, template <typename...> typename TContainer, typename... TContainerArgs>
63 struct Collector {};
64 /** @private */
65 template<typename TChainInput, template <typename...> typename TContainer, typename... TContainerArgs>
66 requires util::BackInsertableContainerTemplate<TContainer, typename TChainInput::ItemOwned, TContainerArgs...>
67 || util::InsertableContainerTemplate<TContainer, typename TChainInput::ItemOwned, TContainerArgs...>
68 struct Collector<TChainInput, TContainer, TContainerArgs...> {
69 template<typename Item, typename ItemOwned>
70 262 static constexpr TContainer<ItemOwned, TContainerArgs...> collect(TChainInput& input) {
71 262 TContainer<ItemOwned, TContainerArgs...> container;
72
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 262 IntoCollector<TChainInput, decltype(container)>::collectInto(input, container);
73 260 return container;
74 }
75 };
76 /** @private */
77 template<typename TChainInput, template <typename...> typename TContainer, typename... TContainerArgs>
78 requires (!util::BackInsertableContainerTemplate<TContainer, typename TChainInput::ItemOwned, TContainerArgs...>)
79 && util::is_pair<typename TChainInput::ItemOwned>
80 && util::AssocContainerTemplate<TContainer, std::tuple_element_t<0, typename TChainInput::ItemOwned>, std::tuple_element_t<1, typename TChainInput::ItemOwned>, TContainerArgs...>
81 struct Collector<TChainInput, TContainer, TContainerArgs...> {
82 template<typename Item, typename ItemOwned>
83 20 static constexpr auto collect(TChainInput& input) {
84 using TKey = std::remove_const_t<std::tuple_element_t<0, typename TChainInput::ItemOwned>>;
85 using TValue = std::tuple_element_t<1, typename TChainInput::ItemOwned>;
86 20 TContainer<TKey, TValue, TContainerArgs...> container;
87
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 20 IntoCollector<TChainInput, decltype(container)>::collectInto(input, container);
88 20 return container;
89 }
90 };
91
92 }
93