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<td width="10%" class="headerValue"><a href="../../../../index.html">top level</a> - <a href="index.html">libtorch/include/c10/util</a> - OptionalArrayRef.h<span style="font-size: 80%;"> (source / <a href="OptionalArrayRef.h.func-c.html">functions</a>)</span></td>
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<td class="headerValue">2024-04-30 13:17:26</td>
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<pre class="sourceHeading"> Line data Source code</pre>
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<pre class="source">
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<span id="L1"><span class="lineNum"> 1</span> : // This file defines OptionalArrayRef<T>, a class that has almost the same</span>
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<span id="L2"><span class="lineNum"> 2</span> : // exact functionality as c10::optional<ArrayRef<T>>, except that its</span>
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<span id="L3"><span class="lineNum"> 3</span> : // converting constructor fixes a dangling pointer issue.</span>
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<span id="L4"><span class="lineNum"> 4</span> : //</span>
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<span id="L5"><span class="lineNum"> 5</span> : // The implicit converting constructor of both c10::optional<ArrayRef<T>> and</span>
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<span id="L6"><span class="lineNum"> 6</span> : // std::optional<ArrayRef<T>> can cause the underlying ArrayRef<T> to store</span>
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<span id="L7"><span class="lineNum"> 7</span> : // a dangling pointer. OptionalArrayRef<T> prevents this by wrapping</span>
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<span id="L8"><span class="lineNum"> 8</span> : // a c10::optional<ArrayRef<T>> and fixing the constructor implementation.</span>
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<span id="L9"><span class="lineNum"> 9</span> : //</span>
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<span id="L10"><span class="lineNum"> 10</span> : // See https://github.com/pytorch/pytorch/issues/63645 for more on this.</span>
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<span id="L11"><span class="lineNum"> 11</span> : </span>
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<span id="L12"><span class="lineNum"> 12</span> : #pragma once</span>
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<span id="L13"><span class="lineNum"> 13</span> : </span>
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<span id="L14"><span class="lineNum"> 14</span> : #include <c10/util/ArrayRef.h></span>
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<span id="L15"><span class="lineNum"> 15</span> : #include <c10/util/Optional.h></span>
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<span id="L16"><span class="lineNum"> 16</span> : </span>
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<span id="L17"><span class="lineNum"> 17</span> : namespace c10 {</span>
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<span id="L18"><span class="lineNum"> 18</span> : </span>
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<span id="L19"><span class="lineNum"> 19</span> : template <typename T></span>
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<span id="L20"><span class="lineNum"> 20</span> : class OptionalArrayRef final {</span>
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<span id="L21"><span class="lineNum"> 21</span> : public:</span>
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<span id="L22"><span class="lineNum"> 22</span> : // Constructors</span>
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<span id="L23"><span class="lineNum"> 23</span> : </span>
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<span id="L24"><span class="lineNum"> 24</span> : constexpr OptionalArrayRef() noexcept = default;</span>
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<span id="L25"><span class="lineNum"> 25</span> : </span>
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<span id="L26"><span class="lineNum"> 26</span> <span class="tlaGNC tlaBgGNC"> 16480 : constexpr OptionalArrayRef(nullopt_t) noexcept {}</span></span>
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<span id="L27"><span class="lineNum"> 27</span> : </span>
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<span id="L28"><span class="lineNum"> 28</span> : OptionalArrayRef(const OptionalArrayRef& other) = default;</span>
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<span id="L29"><span class="lineNum"> 29</span> : </span>
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<span id="L30"><span class="lineNum"> 30</span> : OptionalArrayRef(OptionalArrayRef&& other) = default;</span>
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<span id="L31"><span class="lineNum"> 31</span> : </span>
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<span id="L32"><span class="lineNum"> 32</span> : constexpr OptionalArrayRef(const optional<ArrayRef<T>>& other) noexcept</span>
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<span id="L33"><span class="lineNum"> 33</span> : : wrapped_opt_array_ref(other) {}</span>
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<span id="L34"><span class="lineNum"> 34</span> : </span>
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<span id="L35"><span class="lineNum"> 35</span> : constexpr OptionalArrayRef(optional<ArrayRef<T>>&& other) noexcept</span>
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<span id="L36"><span class="lineNum"> 36</span> : : wrapped_opt_array_ref(other) {}</span>
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<span id="L37"><span class="lineNum"> 37</span> : </span>
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<span id="L38"><span class="lineNum"> 38</span> <span class="tlaGNC"> 14194 : constexpr OptionalArrayRef(const T& value) noexcept</span></span>
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<span id="L39"><span class="lineNum"> 39</span> <span class="tlaGNC"> 14194 : : wrapped_opt_array_ref(value) {}</span></span>
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<span id="L40"><span class="lineNum"> 40</span> : </span>
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<span id="L41"><span class="lineNum"> 41</span> : template <</span>
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<span id="L42"><span class="lineNum"> 42</span> : typename U = ArrayRef<T>,</span>
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<span id="L43"><span class="lineNum"> 43</span> : std::enable_if_t<</span>
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<span id="L44"><span class="lineNum"> 44</span> : !std::is_same<std::decay_t<U>, OptionalArrayRef>::value &&</span>
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<span id="L45"><span class="lineNum"> 45</span> : !std::is_same<std::decay_t<U>, in_place_t>::value &&</span>
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<span id="L46"><span class="lineNum"> 46</span> : std::is_constructible<ArrayRef<T>, U&&>::value &&</span>
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<span id="L47"><span class="lineNum"> 47</span> : std::is_convertible<U&&, ArrayRef<T>>::value &&</span>
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<span id="L48"><span class="lineNum"> 48</span> : !std::is_convertible<U&&, T>::value,</span>
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<span id="L49"><span class="lineNum"> 49</span> : bool> = false></span>
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<span id="L50"><span class="lineNum"> 50</span> : constexpr OptionalArrayRef(U&& value) noexcept(</span>
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<span id="L51"><span class="lineNum"> 51</span> : std::is_nothrow_constructible<ArrayRef<T>, U&&>::value)</span>
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<span id="L52"><span class="lineNum"> 52</span> : : wrapped_opt_array_ref(value) {}</span>
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<span id="L53"><span class="lineNum"> 53</span> : </span>
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<span id="L54"><span class="lineNum"> 54</span> : template <</span>
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<span id="L55"><span class="lineNum"> 55</span> : typename U = ArrayRef<T>,</span>
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<span id="L56"><span class="lineNum"> 56</span> : std::enable_if_t<</span>
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<span id="L57"><span class="lineNum"> 57</span> : !std::is_same<std::decay_t<U>, OptionalArrayRef>::value &&</span>
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<span id="L58"><span class="lineNum"> 58</span> : !std::is_same<std::decay_t<U>, in_place_t>::value &&</span>
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<span id="L59"><span class="lineNum"> 59</span> : std::is_constructible<ArrayRef<T>, U&&>::value &&</span>
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<span id="L60"><span class="lineNum"> 60</span> : !std::is_convertible<U&&, ArrayRef<T>>::value,</span>
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<span id="L61"><span class="lineNum"> 61</span> : bool> = false></span>
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<span id="L62"><span class="lineNum"> 62</span> : constexpr explicit OptionalArrayRef(U&& value) noexcept(</span>
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<span id="L63"><span class="lineNum"> 63</span> : std::is_nothrow_constructible<ArrayRef<T>, U&&>::value)</span>
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<span id="L64"><span class="lineNum"> 64</span> : : wrapped_opt_array_ref(value) {}</span>
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<span id="L65"><span class="lineNum"> 65</span> : </span>
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<span id="L66"><span class="lineNum"> 66</span> : template <typename... Args></span>
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<span id="L67"><span class="lineNum"> 67</span> : constexpr explicit OptionalArrayRef(in_place_t ip, Args&&... args) noexcept</span>
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<span id="L68"><span class="lineNum"> 68</span> : : wrapped_opt_array_ref(ip, args...) {}</span>
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<span id="L69"><span class="lineNum"> 69</span> : </span>
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<span id="L70"><span class="lineNum"> 70</span> : template <typename U, typename... Args></span>
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<span id="L71"><span class="lineNum"> 71</span> : constexpr explicit OptionalArrayRef(</span>
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<span id="L72"><span class="lineNum"> 72</span> : in_place_t ip,</span>
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<span id="L73"><span class="lineNum"> 73</span> : std::initializer_list<U> il,</span>
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<span id="L74"><span class="lineNum"> 74</span> : Args&&... args)</span>
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<span id="L75"><span class="lineNum"> 75</span> : : wrapped_opt_array_ref(ip, il, args...) {}</span>
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<span id="L76"><span class="lineNum"> 76</span> : </span>
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<span id="L77"><span class="lineNum"> 77</span> : constexpr OptionalArrayRef(const std::initializer_list<T>& Vec)</span>
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<span id="L78"><span class="lineNum"> 78</span> : : wrapped_opt_array_ref(ArrayRef<T>(Vec)) {}</span>
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<span id="L79"><span class="lineNum"> 79</span> : </span>
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<span id="L80"><span class="lineNum"> 80</span> : // Destructor</span>
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<span id="L81"><span class="lineNum"> 81</span> : </span>
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<span id="L82"><span class="lineNum"> 82</span> : ~OptionalArrayRef() = default;</span>
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<span id="L83"><span class="lineNum"> 83</span> : </span>
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<span id="L84"><span class="lineNum"> 84</span> : // Assignment</span>
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<span id="L85"><span class="lineNum"> 85</span> : </span>
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<span id="L86"><span class="lineNum"> 86</span> : constexpr OptionalArrayRef& operator=(nullopt_t) noexcept {</span>
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<span id="L87"><span class="lineNum"> 87</span> : wrapped_opt_array_ref = c10::nullopt;</span>
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<span id="L88"><span class="lineNum"> 88</span> : return *this;</span>
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<span id="L89"><span class="lineNum"> 89</span> : }</span>
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<span id="L90"><span class="lineNum"> 90</span> : </span>
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<span id="L91"><span class="lineNum"> 91</span> : OptionalArrayRef& operator=(const OptionalArrayRef& other) = default;</span>
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<span id="L92"><span class="lineNum"> 92</span> : </span>
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<span id="L93"><span class="lineNum"> 93</span> : OptionalArrayRef& operator=(OptionalArrayRef&& other) = default;</span>
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<span id="L94"><span class="lineNum"> 94</span> : </span>
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<span id="L95"><span class="lineNum"> 95</span> : constexpr OptionalArrayRef& operator=(</span>
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<span id="L96"><span class="lineNum"> 96</span> : const optional<ArrayRef<T>>& other) noexcept {</span>
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<span id="L97"><span class="lineNum"> 97</span> : wrapped_opt_array_ref = other;</span>
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<span id="L98"><span class="lineNum"> 98</span> : return *this;</span>
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<span id="L99"><span class="lineNum"> 99</span> : }</span>
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<span id="L100"><span class="lineNum"> 100</span> : </span>
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<span id="L101"><span class="lineNum"> 101</span> : constexpr OptionalArrayRef& operator=(</span>
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<span id="L102"><span class="lineNum"> 102</span> : optional<ArrayRef<T>>&& other) noexcept {</span>
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<span id="L103"><span class="lineNum"> 103</span> : wrapped_opt_array_ref = other;</span>
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<span id="L104"><span class="lineNum"> 104</span> : return *this;</span>
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<span id="L105"><span class="lineNum"> 105</span> : }</span>
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<span id="L106"><span class="lineNum"> 106</span> : </span>
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<span id="L107"><span class="lineNum"> 107</span> : template <typename U = ArrayRef<T>></span>
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<span id="L108"><span class="lineNum"> 108</span> : constexpr std::enable_if_t<</span>
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<span id="L109"><span class="lineNum"> 109</span> : !std::is_same<std::decay_t<U>, OptionalArrayRef>::value &&</span>
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<span id="L110"><span class="lineNum"> 110</span> : std::is_constructible<ArrayRef<T>, U&&>::value &&</span>
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<span id="L111"><span class="lineNum"> 111</span> : std::is_assignable<ArrayRef<T>&, U&&>::value,</span>
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<span id="L112"><span class="lineNum"> 112</span> : OptionalArrayRef&></span>
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<span id="L113"><span class="lineNum"> 113</span> : operator=(U&& value) noexcept(</span>
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<span id="L114"><span class="lineNum"> 114</span> : std::is_nothrow_constructible<ArrayRef<T>, U&&>::value&&</span>
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<span id="L115"><span class="lineNum"> 115</span> : std::is_nothrow_assignable<ArrayRef<T>&, U&&>::value) {</span>
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<span id="L116"><span class="lineNum"> 116</span> : wrapped_opt_array_ref = value;</span>
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<span id="L117"><span class="lineNum"> 117</span> : return *this;</span>
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<span id="L118"><span class="lineNum"> 118</span> : }</span>
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<span id="L119"><span class="lineNum"> 119</span> : </span>
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<span id="L120"><span class="lineNum"> 120</span> : // Observers</span>
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<span id="L121"><span class="lineNum"> 121</span> : </span>
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<span id="L122"><span class="lineNum"> 122</span> : constexpr ArrayRef<T>* operator->() noexcept {</span>
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<span id="L123"><span class="lineNum"> 123</span> : return &wrapped_opt_array_ref.value();</span>
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<span id="L124"><span class="lineNum"> 124</span> : }</span>
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<span id="L125"><span class="lineNum"> 125</span> : </span>
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<span id="L126"><span class="lineNum"> 126</span> : constexpr const ArrayRef<T>* operator->() const noexcept {</span>
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<span id="L127"><span class="lineNum"> 127</span> : return &wrapped_opt_array_ref.value();</span>
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<span id="L128"><span class="lineNum"> 128</span> : }</span>
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<span id="L129"><span class="lineNum"> 129</span> : </span>
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<span id="L130"><span class="lineNum"> 130</span> : constexpr ArrayRef<T>& operator*() & noexcept {</span>
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<span id="L131"><span class="lineNum"> 131</span> : return wrapped_opt_array_ref.value();</span>
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<span id="L132"><span class="lineNum"> 132</span> : }</span>
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<span id="L133"><span class="lineNum"> 133</span> : </span>
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<span id="L134"><span class="lineNum"> 134</span> : constexpr const ArrayRef<T>& operator*() const& noexcept {</span>
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<span id="L135"><span class="lineNum"> 135</span> : return wrapped_opt_array_ref.value();</span>
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<span id="L136"><span class="lineNum"> 136</span> : }</span>
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<span id="L137"><span class="lineNum"> 137</span> : </span>
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<span id="L138"><span class="lineNum"> 138</span> : constexpr ArrayRef<T>&& operator*() && noexcept {</span>
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<span id="L139"><span class="lineNum"> 139</span> : return std::move(wrapped_opt_array_ref.value());</span>
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<span id="L140"><span class="lineNum"> 140</span> : }</span>
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<span id="L141"><span class="lineNum"> 141</span> : </span>
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<span id="L142"><span class="lineNum"> 142</span> : constexpr const ArrayRef<T>&& operator*() const&& noexcept {</span>
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<span id="L143"><span class="lineNum"> 143</span> : return std::move(wrapped_opt_array_ref.value());</span>
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<span id="L144"><span class="lineNum"> 144</span> : }</span>
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<span id="L145"><span class="lineNum"> 145</span> : </span>
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<span id="L146"><span class="lineNum"> 146</span> : constexpr explicit operator bool() const noexcept {</span>
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<span id="L147"><span class="lineNum"> 147</span> : return wrapped_opt_array_ref.has_value();</span>
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<span id="L148"><span class="lineNum"> 148</span> : }</span>
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<span id="L149"><span class="lineNum"> 149</span> : </span>
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<span id="L150"><span class="lineNum"> 150</span> : constexpr bool has_value() const noexcept {</span>
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<span id="L151"><span class="lineNum"> 151</span> : return wrapped_opt_array_ref.has_value();</span>
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<span id="L152"><span class="lineNum"> 152</span> : }</span>
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<span id="L153"><span class="lineNum"> 153</span> : </span>
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<span id="L154"><span class="lineNum"> 154</span> : constexpr ArrayRef<T>& value() & {</span>
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<span id="L155"><span class="lineNum"> 155</span> : return wrapped_opt_array_ref.value();</span>
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<span id="L156"><span class="lineNum"> 156</span> : }</span>
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<span id="L157"><span class="lineNum"> 157</span> : </span>
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<span id="L158"><span class="lineNum"> 158</span> : constexpr const ArrayRef<T>& value() const& {</span>
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<span id="L159"><span class="lineNum"> 159</span> : return wrapped_opt_array_ref.value();</span>
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<span id="L160"><span class="lineNum"> 160</span> : }</span>
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<span id="L161"><span class="lineNum"> 161</span> : </span>
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<span id="L162"><span class="lineNum"> 162</span> : constexpr ArrayRef<T>&& value() && {</span>
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<span id="L163"><span class="lineNum"> 163</span> : return std::move(wrapped_opt_array_ref.value());</span>
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<span id="L164"><span class="lineNum"> 164</span> : }</span>
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<span id="L165"><span class="lineNum"> 165</span> : </span>
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<span id="L166"><span class="lineNum"> 166</span> : constexpr const ArrayRef<T>&& value() const&& {</span>
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<span id="L167"><span class="lineNum"> 167</span> : return std::move(wrapped_opt_array_ref.value());</span>
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<span id="L168"><span class="lineNum"> 168</span> : }</span>
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<span id="L169"><span class="lineNum"> 169</span> : </span>
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<span id="L170"><span class="lineNum"> 170</span> : template <typename U></span>
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<span id="L171"><span class="lineNum"> 171</span> : constexpr std::</span>
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<span id="L172"><span class="lineNum"> 172</span> : enable_if_t<std::is_convertible<U&&, ArrayRef<T>>::value, ArrayRef<T>></span>
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<span id="L173"><span class="lineNum"> 173</span> : value_or(U&& default_value) const& {</span>
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<span id="L174"><span class="lineNum"> 174</span> : return wrapped_opt_array_ref.value_or(default_value);</span>
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<span id="L175"><span class="lineNum"> 175</span> : }</span>
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<span id="L176"><span class="lineNum"> 176</span> : </span>
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<span id="L177"><span class="lineNum"> 177</span> : template <typename U></span>
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<span id="L178"><span class="lineNum"> 178</span> : constexpr std::</span>
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<span id="L179"><span class="lineNum"> 179</span> : enable_if_t<std::is_convertible<U&&, ArrayRef<T>>::value, ArrayRef<T>></span>
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<span id="L180"><span class="lineNum"> 180</span> : value_or(U&& default_value) && {</span>
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<span id="L181"><span class="lineNum"> 181</span> : return wrapped_opt_array_ref.value_or(default_value);</span>
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<span id="L182"><span class="lineNum"> 182</span> : }</span>
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<span id="L183"><span class="lineNum"> 183</span> : </span>
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<span id="L184"><span class="lineNum"> 184</span> : // Modifiers</span>
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<span id="L185"><span class="lineNum"> 185</span> : </span>
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<span id="L186"><span class="lineNum"> 186</span> : constexpr void swap(OptionalArrayRef& other) noexcept {</span>
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<span id="L187"><span class="lineNum"> 187</span> : std::swap(wrapped_opt_array_ref, other.wrapped_opt_array_ref);</span>
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<span id="L188"><span class="lineNum"> 188</span> : }</span>
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<span id="L189"><span class="lineNum"> 189</span> : </span>
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<span id="L190"><span class="lineNum"> 190</span> : constexpr void reset() noexcept {</span>
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<span id="L191"><span class="lineNum"> 191</span> : wrapped_opt_array_ref.reset();</span>
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<span id="L192"><span class="lineNum"> 192</span> : }</span>
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<span id="L193"><span class="lineNum"> 193</span> : </span>
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<span id="L194"><span class="lineNum"> 194</span> : template <typename... Args></span>
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<span id="L195"><span class="lineNum"> 195</span> : constexpr std::enable_if_t<</span>
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<span id="L196"><span class="lineNum"> 196</span> : std::is_constructible<ArrayRef<T>, Args&&...>::value,</span>
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<span id="L197"><span class="lineNum"> 197</span> : ArrayRef<T>&></span>
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<span id="L198"><span class="lineNum"> 198</span> : emplace(Args&&... args) noexcept(</span>
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<span id="L199"><span class="lineNum"> 199</span> : std::is_nothrow_constructible<ArrayRef<T>, Args&&...>::value) {</span>
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<span id="L200"><span class="lineNum"> 200</span> : return wrapped_opt_array_ref.emplace(args...);</span>
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<span id="L201"><span class="lineNum"> 201</span> : }</span>
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<span id="L202"><span class="lineNum"> 202</span> : </span>
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<span id="L203"><span class="lineNum"> 203</span> : template <typename U, typename... Args></span>
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<span id="L204"><span class="lineNum"> 204</span> : constexpr ArrayRef<T>& emplace(</span>
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<span id="L205"><span class="lineNum"> 205</span> : std::initializer_list<U> il,</span>
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<span id="L206"><span class="lineNum"> 206</span> : Args&&... args) noexcept {</span>
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<span id="L207"><span class="lineNum"> 207</span> : return wrapped_opt_array_ref.emplace(il, args...);</span>
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<span id="L208"><span class="lineNum"> 208</span> : }</span>
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<span id="L209"><span class="lineNum"> 209</span> : </span>
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<span id="L210"><span class="lineNum"> 210</span> : private:</span>
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<span id="L211"><span class="lineNum"> 211</span> : optional<ArrayRef<T>> wrapped_opt_array_ref;</span>
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<span id="L212"><span class="lineNum"> 212</span> : };</span>
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<span id="L213"><span class="lineNum"> 213</span> : </span>
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<span id="L214"><span class="lineNum"> 214</span> : using OptionalIntArrayRef = OptionalArrayRef<int64_t>;</span>
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<span id="L215"><span class="lineNum"> 215</span> : </span>
|
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<span id="L216"><span class="lineNum"> 216</span> : inline bool operator==(</span>
|
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<span id="L217"><span class="lineNum"> 217</span> : const OptionalIntArrayRef& a1,</span>
|
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<span id="L218"><span class="lineNum"> 218</span> : const IntArrayRef& other) {</span>
|
|
<span id="L219"><span class="lineNum"> 219</span> : if (!a1.has_value()) {</span>
|
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<span id="L220"><span class="lineNum"> 220</span> : return false;</span>
|
|
<span id="L221"><span class="lineNum"> 221</span> : }</span>
|
|
<span id="L222"><span class="lineNum"> 222</span> : return a1.value() == other;</span>
|
|
<span id="L223"><span class="lineNum"> 223</span> : }</span>
|
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<span id="L224"><span class="lineNum"> 224</span> : </span>
|
|
<span id="L225"><span class="lineNum"> 225</span> : inline bool operator==(</span>
|
|
<span id="L226"><span class="lineNum"> 226</span> : const c10::IntArrayRef& a1,</span>
|
|
<span id="L227"><span class="lineNum"> 227</span> : const c10::OptionalIntArrayRef& a2) {</span>
|
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<span id="L228"><span class="lineNum"> 228</span> : return a2 == a1;</span>
|
|
<span id="L229"><span class="lineNum"> 229</span> : }</span>
|
|
<span id="L230"><span class="lineNum"> 230</span> : </span>
|
|
<span id="L231"><span class="lineNum"> 231</span> : } // namespace c10</span>
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</pre>
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</td>
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</table>
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<br>
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<tr><td class="ruler"><img src="../../../../glass.png" width=3 height=3 alt=""></td></tr>
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<tr><td class="versionInfo">Generated by: <a href="https://github.com//linux-test-project/lcov" target="_parent">LCOV version 2.0-1</a></td></tr>
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