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<div class="title">utility.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="preprocessor">#ifndef ENTT_META_UTILITY_HPP</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="preprocessor">#define ENTT_META_UTILITY_HPP</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160; </div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160; </div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &lt;cstddef&gt;</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor">#include &lt;functional&gt;</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &lt;type_traits&gt;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &lt;utility&gt;</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &quot;../config/config.h&quot;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &quot;../core/type_traits.hpp&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &quot;meta.hpp&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;node.hpp&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;policy.hpp&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160; </div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; </div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceentt.html">entt</a> {</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160; </div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span>, <span class="keyword">typename</span>&gt;</div>
<div class="line"><a name="l00021"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor.html"> 21</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structentt_1_1meta__function__descriptor.html">meta_function_descriptor</a>;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type, <span class="keyword">typename</span> Ret, <span class="keyword">typename</span> Class, <span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4.html"> 32</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structentt_1_1meta__function__descriptor.html">meta_function_descriptor</a>&lt;Type, Ret(Class:: *)(Args...) const&gt; {</div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4.html#aae0a4b941e6c2a4ee5239d5110c88e39"> 34</a></span>&#160; <span class="keyword">using</span> <a class="code" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4.html#aae0a4b941e6c2a4ee5239d5110c88e39">return_type</a> = Ret;</div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4.html#a2446827fb076fcb5bddf6310c40e28cc"> 36</a></span>&#160; <span class="keyword">using</span> <a class="code" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4.html#a2446827fb076fcb5bddf6310c40e28cc">args_type</a> = std::conditional_t&lt;std::is_same_v&lt;Type, Class&gt;, <a class="code" href="structentt_1_1type__list.html">type_list</a>&lt;Args...&gt;, <a class="code" href="structentt_1_1type__list.html">type_list</a>&lt;<span class="keyword">const</span> Class &amp;, Args...&gt;&gt;;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; </div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4.html#a8227699d91d302cbe93fa8f36434aacd"> 39</a></span>&#160; <span class="keyword">static</span> constexpr <span class="keyword">auto</span> is_const = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4.html#ad677df460bd44063d268f841e37efe9f"> 41</a></span>&#160; <span class="keyword">static</span> constexpr <span class="keyword">auto</span> is_static = !std::is_same_v&lt;Type, Class&gt;;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;};</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; </div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type, <span class="keyword">typename</span> Ret, <span class="keyword">typename</span> Class, <span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4.html"> 53</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structentt_1_1meta__function__descriptor.html">meta_function_descriptor</a>&lt;Type, Ret(Class:: *)(Args...)&gt; {</div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4.html#a63465b01fc295a119b70095722c0e677"> 55</a></span>&#160; <span class="keyword">using</span> <a class="code" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4.html#a63465b01fc295a119b70095722c0e677">return_type</a> = Ret;</div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4.html#a327a5f8c4f6a34d1d1117fd9c98d8e38"> 57</a></span>&#160; <span class="keyword">using</span> <a class="code" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4.html#a327a5f8c4f6a34d1d1117fd9c98d8e38">args_type</a> = std::conditional_t&lt;std::is_same_v&lt;Type, Class&gt;, <a class="code" href="structentt_1_1type__list.html">type_list</a>&lt;Args...&gt;, <a class="code" href="structentt_1_1type__list.html">type_list</a>&lt;Class &amp;, Args...&gt;&gt;;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; </div>
<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4.html#a19154b177e459db7b337ef47e3ddd43c"> 60</a></span>&#160; <span class="keyword">static</span> constexpr <span class="keyword">auto</span> is_const = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4.html#a0f3d42096f81fb16c1f7f4f62f540ad1"> 62</a></span>&#160; <span class="keyword">static</span> constexpr <span class="keyword">auto</span> is_static = !std::is_same_v&lt;Type, Class&gt;;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;};</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type, <span class="keyword">typename</span> Ret, <span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07_5_08_07Args_8_8_8_08_4.html"> 73</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structentt_1_1meta__function__descriptor.html">meta_function_descriptor</a>&lt;Type, Ret(*)(Args...)&gt; {</div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07_5_08_07Args_8_8_8_08_4.html#a55593948f0d7e85a04a1002f528c1bed"> 75</a></span>&#160; <span class="keyword">using</span> <a class="code" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07_5_08_07Args_8_8_8_08_4.html#a55593948f0d7e85a04a1002f528c1bed">return_type</a> = Ret;</div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07_5_08_07Args_8_8_8_08_4.html#a545176bcdf581359456ab58b81513f87"> 77</a></span>&#160; <span class="keyword">using</span> <a class="code" href="structentt_1_1type__list.html">args_type</a> = <a class="code" href="structentt_1_1type__list.html">type_list</a>&lt;Args...&gt;;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; </div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07_5_08_07Args_8_8_8_08_4.html#aa783b818b4e4f4a95cfa3f0f543b23f5"> 80</a></span>&#160; <span class="keyword">static</span> constexpr <span class="keyword">auto</span> is_const = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07_5_08_07Args_8_8_8_08_4.html#aad643ca6c4e6c09457ae1a38af8d6b4f"> 82</a></span>&#160; <span class="keyword">static</span> constexpr <span class="keyword">auto</span> is_static = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;};</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type, <span class="keyword">typename</span> Cand<span class="keywordtype">id</span>ate&gt;</div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="classentt_1_1meta__function__helper.html"> 96</a></span>&#160;<span class="keyword">class </span><a class="code" href="classentt_1_1meta__function__helper.html">meta_function_helper</a> {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Ret, <span class="keyword">typename</span>... Args, <span class="keyword">typename</span> Class&gt;</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keyword">static</span> constexpr <a class="code" href="structentt_1_1meta__function__descriptor.html">meta_function_descriptor</a>&lt;Type, Ret(Class:: *)(Args...) <span class="keyword">const</span>&gt; get_rid_of_noexcept(Ret(Class:: *)(Args...) <span class="keyword">const</span>);</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Ret, <span class="keyword">typename</span>... Args, <span class="keyword">typename</span> Class&gt;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keyword">static</span> constexpr <a class="code" href="structentt_1_1meta__function__descriptor.html">meta_function_descriptor</a>&lt;Type, Ret(Class:: *)(Args...)&gt; get_rid_of_noexcept(Ret(Class:: *)(Args...));</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Ret, <span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keyword">static</span> constexpr <a class="code" href="structentt_1_1meta__function__descriptor.html">meta_function_descriptor</a>&lt;Type, Ret(*)(Args...)&gt; get_rid_of_noexcept(Ret(*)(Args...));</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; </div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="classentt_1_1meta__function__helper.html#a74ea1aa3fe0edfad96898520cbf6eeae"> 108</a></span>&#160; <span class="keyword">using</span> <a class="code" href="classentt_1_1meta__function__helper.html#a74ea1aa3fe0edfad96898520cbf6eeae">type</a> = decltype(get_rid_of_noexcept(std::declval&lt;Candidate&gt;()));</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;};</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; </div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type, <span class="keyword">typename</span> Cand<span class="keywordtype">id</span>ate&gt;</div>
<div class="line"><a name="l00118"></a><span class="lineno"><a class="line" href="namespaceentt.html#a692beabf853ee0f9dc68beab816a6b27"> 118</a></span>&#160;<span class="keyword">using</span> <a class="code" href="namespaceentt.html#a692beabf853ee0f9dc68beab816a6b27">meta_function_helper_t</a> = <span class="keyword">typename</span> <a class="code" href="classentt_1_1meta__function__helper.html#a74ea1aa3fe0edfad96898520cbf6eeae">meta_function_helper&lt;Type, Candidate&gt;::type</a>;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;[[nodiscard]] <span class="keyword">static</span> <a class="code" href="classentt_1_1meta__type.html">meta_type</a> meta_arg(<a class="code" href="structentt_1_1type__list.html">type_list&lt;Args...&gt;</a>, <span class="keyword">const</span> std::size_t index) ENTT_NOEXCEPT {</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keywordflow">return</span> internal::meta_arg_node(<a class="code" href="structentt_1_1type__list.html">type_list&lt;Args...&gt;</a>{}, index);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;}</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; </div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; </div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type, <span class="keyword">typename</span>... Args, std::size_t... Index&gt;</div>
<div class="line"><a name="l00141"></a><span class="lineno"><a class="line" href="namespaceentt.html#a0861c2878957a89499b0ca0801f7eeff"> 141</a></span>&#160;[[nodiscard]] <a class="code" href="classentt_1_1meta__any.html">meta_any</a> <a class="code" href="namespaceentt.html#a0861c2878957a89499b0ca0801f7eeff">meta_construct</a>(<a class="code" href="classentt_1_1meta__any.html">meta_any</a> * <span class="keyword">const</span> args, std::index_sequence&lt;Index...&gt;) {</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; <span class="keywordflow">if</span>(((args+Index)-&gt;allow_cast&lt;Args&gt;() &amp;&amp; ...)) {</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">return</span> Type{(args+Index)-&gt;cast&lt;Args&gt;()...};</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; }</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; </div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; <span class="keywordflow">return</span> {};</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;}</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; </div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type, auto Data&gt;</div>
<div class="line"><a name="l00159"></a><span class="lineno"><a class="line" href="namespaceentt.html#adbe109e5134bae55cb519799acbed732"> 159</a></span>&#160;[[nodiscard]] <span class="keywordtype">bool</span> <a class="code" href="namespaceentt.html#adbe109e5134bae55cb519799acbed732">meta_setter</a>([[maybe_unused]] <a class="code" href="structentt_1_1meta__handle.html">meta_handle</a> instance, [[maybe_unused]] <a class="code" href="classentt_1_1meta__any.html">meta_any</a> value) {</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordflow">if</span> constexpr(!std::is_same_v&lt;decltype(Data), Type&gt; &amp;&amp; !std::is_same_v&lt;decltype(Data), std::nullptr_t&gt;) {</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keywordflow">if</span> constexpr(std::is_function_v&lt;std::remove_reference_t&lt;std::remove_pointer_t&lt;decltype(Data)&gt;&gt;&gt;) {</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keyword">using</span> data_type = <a class="code" href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">type_list_element_t</a>&lt;1u, <span class="keyword">typename</span> <a class="code" href="namespaceentt.html#a692beabf853ee0f9dc68beab816a6b27">meta_function_helper_t</a>&lt;Type, decltype(Data)&gt;::args_type&gt;;</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; </div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keywordflow">if</span>(<span class="keyword">auto</span> * <span class="keyword">const</span> clazz = instance-&gt;try_cast&lt;Type&gt;(); clazz &amp;&amp; value.allow_cast&lt;data_type&gt;()) {</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; Data(*clazz, value.cast&lt;data_type&gt;());</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; }</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> constexpr(std::is_member_function_pointer_v&lt;decltype(Data)&gt;) {</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="keyword">using</span> data_type = <a class="code" href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">type_list_element_t</a>&lt;0u, <span class="keyword">typename</span> <a class="code" href="namespaceentt.html#a692beabf853ee0f9dc68beab816a6b27">meta_function_helper_t</a>&lt;Type, decltype(Data)&gt;::args_type&gt;;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; </div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keywordflow">if</span>(<span class="keyword">auto</span> * <span class="keyword">const</span> clazz = instance-&gt;try_cast&lt;Type&gt;(); clazz &amp;&amp; value.allow_cast&lt;data_type&gt;()) {</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; (clazz-&gt;*Data)(value.cast&lt;data_type&gt;());</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; }</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> constexpr(std::is_member_object_pointer_v&lt;decltype(Data)&gt;) {</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="keyword">using</span> data_type = std::remove_reference_t&lt;decltype(std::declval&lt;Type&gt;().*Data)&gt;;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; </div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="keywordflow">if</span> constexpr(!std::is_array_v&lt;data_type&gt; &amp;&amp; !std::is_const_v&lt;data_type&gt;) {</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keywordflow">if</span>(<span class="keyword">auto</span> * <span class="keyword">const</span> clazz = instance-&gt;try_cast&lt;Type&gt;(); clazz &amp;&amp; value.allow_cast&lt;data_type&gt;()) {</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; clazz-&gt;*Data = value.cast&lt;data_type&gt;();</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; }</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; }</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keyword">using</span> data_type = std::remove_reference_t&lt;decltype(*Data)&gt;;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; </div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; <span class="keywordflow">if</span> constexpr(!std::is_array_v&lt;data_type&gt; &amp;&amp; !std::is_const_v&lt;data_type&gt;) {</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; <span class="keywordflow">if</span>(value.allow_cast&lt;data_type&gt;()) {</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; *Data = value.cast&lt;data_type&gt;();</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; }</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; }</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; }</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; }</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;}</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; </div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; </div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Policy = as_is_t, <span class="keyword">typename</span> Type&gt;</div>
<div class="line"><a name="l00208"></a><span class="lineno"><a class="line" href="namespaceentt.html#a3ddec8e1e99754cfbb7afa9ceb1a5aa0"> 208</a></span>&#160;<a class="code" href="classentt_1_1meta__any.html">meta_any</a> <a class="code" href="namespaceentt.html#a3ddec8e1e99754cfbb7afa9ceb1a5aa0">meta_dispatch</a>(Type &amp;&amp;value) {</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="keywordflow">if</span> constexpr(std::is_same_v&lt;Policy, as_void_t&gt;) {</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{std::in_place_type&lt;void&gt;, std::forward&lt;Type&gt;(value)};</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> constexpr(std::is_same_v&lt;Policy, as_ref_t&gt;) {</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{std::in_place_type&lt;Type&gt;, std::forward&lt;Type&gt;(value)};</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> constexpr(std::is_same_v&lt;Policy, as_cref_t&gt;) {</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; static_assert(std::is_lvalue_reference_v&lt;Type&gt;, <span class="stringliteral">&quot;Invalid type&quot;</span>);</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{std::in_place_type&lt;const std::remove_reference_t&lt;Type&gt; &amp;&gt;, std::as_const(value)};</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; static_assert(std::is_same_v&lt;Policy, as_is_t&gt;, <span class="stringliteral">&quot;Policy not supported&quot;</span>);</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{std::forward&lt;Type&gt;(value)};</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; }</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160;}</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; </div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; </div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type, auto Data, <span class="keyword">typename</span> Policy = as_is_t&gt;</div>
<div class="line"><a name="l00232"></a><span class="lineno"><a class="line" href="namespaceentt.html#a3fe26d091f302630470004fe314a6a8d"> 232</a></span>&#160;[[nodiscard]] <a class="code" href="classentt_1_1meta__any.html">meta_any</a> <a class="code" href="namespaceentt.html#a3fe26d091f302630470004fe314a6a8d">meta_getter</a>([[maybe_unused]] <a class="code" href="structentt_1_1meta__handle.html">meta_handle</a> instance) {</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; <span class="keywordflow">if</span> constexpr(std::is_function_v&lt;std::remove_reference_t&lt;std::remove_pointer_t&lt;decltype(Data)&gt;&gt;&gt;) {</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; <span class="keyword">auto</span> * <span class="keyword">const</span> clazz = instance-&gt;<a class="code" href="classentt_1_1meta__any.html#aa545482520009cfd0b70c77269487213">try_cast</a>&lt;std::conditional_t&lt;std::is_invocable_v&lt;decltype(Data), <span class="keyword">const</span> Type &amp;&gt;, <span class="keyword">const</span> Type, Type&gt;&gt;();</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <span class="keywordflow">return</span> clazz ? meta_dispatch&lt;Policy&gt;(Data(*clazz)) : <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{};</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> constexpr(std::is_member_function_pointer_v&lt;decltype(Data)&gt;) {</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; <span class="keyword">auto</span> * <span class="keyword">const</span> clazz = instance-&gt;<a class="code" href="classentt_1_1meta__any.html#aa545482520009cfd0b70c77269487213">try_cast</a>&lt;std::conditional_t&lt;std::is_invocable_v&lt;decltype(Data), <span class="keyword">const</span> Type &amp;&gt;, <span class="keyword">const</span> Type, Type&gt;&gt;();</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keywordflow">return</span> clazz ? meta_dispatch&lt;Policy&gt;((clazz-&gt;*Data)()) : <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{};</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> constexpr(std::is_member_object_pointer_v&lt;decltype(Data)&gt;) {</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <span class="keywordflow">if</span> constexpr(!std::is_array_v&lt;std::remove_cv_t&lt;std::remove_reference_t&lt;decltype(std::declval&lt;Type&gt;().*Data)&gt;&gt;&gt;) {</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; <span class="keywordflow">if</span>(<span class="keyword">auto</span> * clazz = instance-&gt;try_cast&lt;Type&gt;(); clazz) {</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <span class="keywordflow">return</span> meta_dispatch&lt;Policy&gt;(clazz-&gt;*Data);</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> * fallback = instance-&gt;try_cast&lt;<span class="keyword">const</span> Type&gt;(); fallback) {</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <span class="keywordflow">return</span> meta_dispatch&lt;Policy&gt;(fallback-&gt;*Data);</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; }</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; }</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; </div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{};</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> constexpr(std::is_pointer_v&lt;decltype(Data)&gt;) {</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; <span class="keywordflow">if</span> constexpr(std::is_array_v&lt;std::remove_pointer_t&lt;decltype(Data)&gt;&gt;) {</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{};</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; <span class="keywordflow">return</span> meta_dispatch&lt;Policy&gt;(*Data);</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; }</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; <span class="keywordflow">return</span> meta_dispatch&lt;Policy&gt;(Data);</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; }</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160;}</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; </div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; </div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type, <span class="keyword">auto</span> Candidate, <span class="keyword">typename</span> Policy = as_is_t, std::size_t... Index&gt;</div>
<div class="line"><a name="l00272"></a><span class="lineno"><a class="line" href="namespaceentt.html#a7a2d1a6ef198fb53abcb0fe808f0bdac"> 272</a></span>&#160;[[nodiscard]] std::enable_if_t&lt;!std::is_invocable_v&lt;decltype(Candidate)&gt;, <a class="code" href="classentt_1_1meta__any.html">meta_any</a>&gt; <a class="code" href="namespaceentt.html#a7a2d1a6ef198fb53abcb0fe808f0bdac">meta_invoke</a>([[maybe_unused]] <a class="code" href="structentt_1_1meta__handle.html">meta_handle</a> instance, <a class="code" href="classentt_1_1meta__any.html">meta_any</a> *args, std::index_sequence&lt;Index...&gt;) {</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; <span class="keyword">using</span> descriptor = <a class="code" href="namespaceentt.html#a692beabf853ee0f9dc68beab816a6b27">meta_function_helper_t</a>&lt;Type, decltype(Candidate)&gt;;</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; </div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> <a class="code" href="namespaceentt.html#aa512a354fe328df6be5a92eb43cd4d69">invoke</a> = [](<span class="keyword">auto</span> &amp;&amp;maybe_clazz, <span class="keyword">auto</span> &amp;&amp;... other) {</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; <span class="keywordflow">if</span> constexpr(std::is_member_function_pointer_v&lt;decltype(Candidate)&gt;) {</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; <span class="keywordflow">if</span> constexpr(std::is_void_v&lt;typename descriptor::return_type&gt;) {</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; (std::forward&lt;decltype(maybe_clazz)&gt;(maybe_clazz).*Candidate)(std::forward&lt;decltype(other)&gt;(other)...);</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{std::in_place_type&lt;void&gt;};</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; <span class="keywordflow">return</span> meta_dispatch&lt;Policy&gt;((std::forward&lt;decltype(maybe_clazz)&gt;(maybe_clazz).*Candidate)(std::forward&lt;decltype(other)&gt;(other)...));</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; }</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; <span class="keywordflow">if</span> constexpr(std::is_void_v&lt;typename descriptor::return_type&gt;) {</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; Candidate(std::forward&lt;decltype(maybe_clazz)&gt;(maybe_clazz), std::forward&lt;decltype(other)&gt;(other)...);</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{std::in_place_type&lt;void&gt;};</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; <span class="keywordflow">return</span> meta_dispatch&lt;Policy&gt;(Candidate(std::forward&lt;decltype(maybe_clazz)&gt;(maybe_clazz), std::forward&lt;decltype(other)&gt;(other)...));</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; }</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; }</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; };</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; </div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; <span class="keywordflow">if</span> constexpr(std::is_invocable_v&lt;decltype(Candidate), <span class="keyword">const</span> Type &amp;, <a class="code" href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">type_list_element_t&lt;Index, typename descriptor::args_type&gt;</a>...&gt;) {</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; <span class="keywordflow">if</span>(<span class="keyword">const</span> <span class="keyword">auto</span> * <span class="keyword">const</span> clazz = instance-&gt;try_cast&lt;<span class="keyword">const</span> Type&gt;(); clazz &amp;&amp; ((args+Index)-&gt;allow_cast&lt;<a class="code" href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">type_list_element_t&lt;Index, typename descriptor::args_type&gt;</a>&gt;() &amp;&amp; ...)) {</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; <span class="keywordflow">return</span> <a class="code" href="namespaceentt.html#aa512a354fe328df6be5a92eb43cd4d69">invoke</a>(*clazz, (args+Index)-&gt;cast&lt;<a class="code" href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">type_list_element_t&lt;Index, typename descriptor::args_type&gt;</a>&gt;()...);</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; }</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> constexpr(std::is_invocable_v&lt;decltype(Candidate), Type &amp;, <a class="code" href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">type_list_element_t&lt;Index, typename descriptor::args_type&gt;</a>...&gt;) {</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; <span class="keywordflow">if</span>(<span class="keyword">auto</span> * <span class="keyword">const</span> clazz = instance-&gt;try_cast&lt;Type&gt;(); clazz &amp;&amp; ((args+Index)-&gt;allow_cast&lt;<a class="code" href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">type_list_element_t&lt;Index, typename descriptor::args_type&gt;</a>&gt;() &amp;&amp; ...)) {</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; <span class="keywordflow">return</span> <a class="code" href="namespaceentt.html#aa512a354fe328df6be5a92eb43cd4d69">invoke</a>(*clazz, (args+Index)-&gt;cast&lt;<a class="code" href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">type_list_element_t&lt;Index, typename descriptor::args_type&gt;</a>&gt;()...);</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; }</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; <span class="keywordflow">if</span>(((args+Index)-&gt;allow_cast&lt;<a class="code" href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">type_list_element_t&lt;Index, typename descriptor::args_type&gt;</a>&gt;() &amp;&amp; ...)) {</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; <span class="keywordflow">return</span> <a class="code" href="namespaceentt.html#aa512a354fe328df6be5a92eb43cd4d69">invoke</a>((args+Index)-&gt;cast&lt;<a class="code" href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">type_list_element_t&lt;Index, typename descriptor::args_type&gt;</a>&gt;()...);</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; }</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; }</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; </div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{};</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160;}</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; </div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; </div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Type, <span class="keyword">auto</span> Candidate, <span class="keyword">typename</span> Policy = as_is_t, std::size_t... Index&gt;</div>
<div class="line"><a name="l00320"></a><span class="lineno"><a class="line" href="namespaceentt.html#a050e4320cd8ce648b9b9243817ac742a"> 320</a></span>&#160;[[nodiscard]] std::enable_if_t&lt;std::is_invocable_v&lt;decltype(Candidate)&gt;, <a class="code" href="classentt_1_1meta__any.html">meta_any</a>&gt; <a class="code" href="namespaceentt.html#a7a2d1a6ef198fb53abcb0fe808f0bdac">meta_invoke</a>(<a class="code" href="structentt_1_1meta__handle.html">meta_handle</a>, <a class="code" href="classentt_1_1meta__any.html">meta_any</a> *, std::index_sequence&lt;Index...&gt;) {</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; <span class="keywordflow">if</span> constexpr(std::is_void_v&lt;decltype(Candidate())&gt;) {</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; Candidate();</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classentt_1_1meta__any.html">meta_any</a>{std::in_place_type&lt;void&gt;};</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; <span class="keywordflow">return</span> meta_dispatch&lt;Policy&gt;(Candidate());</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; }</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160;}</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; </div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160;}</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; </div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; </div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclassentt_1_1meta__any_html"><div class="ttname"><a href="classentt_1_1meta__any.html">entt::meta_any</a></div><div class="ttdoc">Opaque wrapper for values of any type.</div><div class="ttdef"><b>Definition:</b> <a href="meta_8hpp_source.html#l00158">meta.hpp:158</a></div></div>
<div class="ttc" id="aclassentt_1_1meta__any_html_aa545482520009cfd0b70c77269487213"><div class="ttname"><a href="classentt_1_1meta__any.html#aa545482520009cfd0b70c77269487213">entt::meta_any::try_cast</a></div><div class="ttdeci">const Type * try_cast() const</div><div class="ttdoc">Tries to cast an instance to a given type.</div><div class="ttdef"><b>Definition:</b> <a href="meta_8hpp_source.html#l00388">meta.hpp:388</a></div></div>
<div class="ttc" id="aclassentt_1_1meta__function__helper_html"><div class="ttname"><a href="classentt_1_1meta__function__helper.html">entt::meta_function_helper</a></div><div class="ttdoc">Meta function helper.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00096">utility.hpp:96</a></div></div>
<div class="ttc" id="aclassentt_1_1meta__function__helper_html_a74ea1aa3fe0edfad96898520cbf6eeae"><div class="ttname"><a href="classentt_1_1meta__function__helper.html#a74ea1aa3fe0edfad96898520cbf6eeae">entt::meta_function_helper::type</a></div><div class="ttdeci">decltype(get_rid_of_noexcept(std::declval&lt; Candidate &gt;())) type</div><div class="ttdoc">The meta function descriptor of the given function.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00108">utility.hpp:108</a></div></div>
<div class="ttc" id="aclassentt_1_1meta__type_html"><div class="ttname"><a href="classentt_1_1meta__type.html">entt::meta_type</a></div><div class="ttdoc">Opaque wrapper for types.</div><div class="ttdef"><b>Definition:</b> <a href="meta_8hpp_source.html#l01040">meta.hpp:1040</a></div></div>
<div class="ttc" id="anamespaceentt_html"><div class="ttname"><a href="namespaceentt.html">entt</a></div><div class="ttdoc">EnTT default namespace.</div><div class="ttdef"><b>Definition:</b> <a href="algorithm_8hpp_source.html#l00013">algorithm.hpp:13</a></div></div>
<div class="ttc" id="anamespaceentt_html_a0861c2878957a89499b0ca0801f7eeff"><div class="ttname"><a href="namespaceentt.html#a0861c2878957a89499b0ca0801f7eeff">entt::meta_construct</a></div><div class="ttdeci">meta_any meta_construct(meta_any *const args, std::index_sequence&lt; Index... &gt;)</div><div class="ttdoc">Constructs an instance given a list of erased parameters, if possible.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00141">utility.hpp:141</a></div></div>
<div class="ttc" id="anamespaceentt_html_a3ddec8e1e99754cfbb7afa9ceb1a5aa0"><div class="ttname"><a href="namespaceentt.html#a3ddec8e1e99754cfbb7afa9ceb1a5aa0">entt::meta_dispatch</a></div><div class="ttdeci">meta_any meta_dispatch(Type &amp;&amp;value)</div><div class="ttdoc">Wraps a value depending on the given policy.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00208">utility.hpp:208</a></div></div>
<div class="ttc" id="anamespaceentt_html_a3fe26d091f302630470004fe314a6a8d"><div class="ttname"><a href="namespaceentt.html#a3fe26d091f302630470004fe314a6a8d">entt::meta_getter</a></div><div class="ttdeci">meta_any meta_getter([[maybe_unused]] meta_handle instance)</div><div class="ttdoc">Gets the value of a given variable.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00232">utility.hpp:232</a></div></div>
<div class="ttc" id="anamespaceentt_html_a692beabf853ee0f9dc68beab816a6b27"><div class="ttname"><a href="namespaceentt.html#a692beabf853ee0f9dc68beab816a6b27">entt::meta_function_helper_t</a></div><div class="ttdeci">typename meta_function_helper&lt; Type, Candidate &gt;::type meta_function_helper_t</div><div class="ttdoc">Helper type.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00118">utility.hpp:118</a></div></div>
<div class="ttc" id="anamespaceentt_html_a7a2d1a6ef198fb53abcb0fe808f0bdac"><div class="ttname"><a href="namespaceentt.html#a7a2d1a6ef198fb53abcb0fe808f0bdac">entt::meta_invoke</a></div><div class="ttdeci">std::enable_if_t&lt;!std::is_invocable_v&lt; decltype(Candidate)&gt;, meta_any &gt; meta_invoke([[maybe_unused]] meta_handle instance, meta_any *args, std::index_sequence&lt; Index... &gt;)</div><div class="ttdoc">Invokes a function given a list of erased parameters, if possible.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00272">utility.hpp:272</a></div></div>
<div class="ttc" id="anamespaceentt_html_aa512a354fe328df6be5a92eb43cd4d69"><div class="ttname"><a href="namespaceentt.html#aa512a354fe328df6be5a92eb43cd4d69">entt::invoke</a></div><div class="ttdeci">void invoke(basic_registry&lt; Entity &gt; &amp;reg, const Entity entt)</div><div class="ttdoc">Helper to create a listener that directly invokes a member function.</div><div class="ttdef"><b>Definition:</b> <a href="helper_8hpp_source.html#l00129">helper.hpp:129</a></div></div>
<div class="ttc" id="anamespaceentt_html_ac839c1a03dba2436791d0056d6d0d1b6"><div class="ttname"><a href="namespaceentt.html#ac839c1a03dba2436791d0056d6d0d1b6">entt::type_list_element_t</a></div><div class="ttdeci">typename type_list_element&lt; Index, List &gt;::type type_list_element_t</div><div class="ttdoc">Helper type.</div><div class="ttdef"><b>Definition:</b> <a href="core_2type__traits_8hpp_source.html#l00171">type_traits.hpp:171</a></div></div>
<div class="ttc" id="anamespaceentt_html_adbe109e5134bae55cb519799acbed732"><div class="ttname"><a href="namespaceentt.html#adbe109e5134bae55cb519799acbed732">entt::meta_setter</a></div><div class="ttdeci">bool meta_setter([[maybe_unused]] meta_handle instance, [[maybe_unused]] meta_any value)</div><div class="ttdoc">Sets the value of a given variable.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00159">utility.hpp:159</a></div></div>
<div class="ttc" id="astructentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4_html_a2446827fb076fcb5bddf6310c40e28cc"><div class="ttname"><a href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4.html#a2446827fb076fcb5bddf6310c40e28cc">entt::meta_function_descriptor&lt; Type, Ret(Class::*)(Args...) const &gt;::args_type</a></div><div class="ttdeci">std::conditional_t&lt; std::is_same_v&lt; Type, Class &gt;, type_list&lt; Args... &gt;, type_list&lt; const Class &amp;, Args... &gt; &gt; args_type</div><div class="ttdoc">Meta function arguments.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00036">utility.hpp:36</a></div></div>
<div class="ttc" id="astructentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4_html_aae0a4b941e6c2a4ee5239d5110c88e39"><div class="ttname"><a href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_01const_01_4.html#aae0a4b941e6c2a4ee5239d5110c88e39">entt::meta_function_descriptor&lt; Type, Ret(Class::*)(Args...) const &gt;::return_type</a></div><div class="ttdeci">Ret return_type</div><div class="ttdoc">Meta function return type.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00034">utility.hpp:34</a></div></div>
<div class="ttc" id="astructentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4_html_a327a5f8c4f6a34d1d1117fd9c98d8e38"><div class="ttname"><a href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4.html#a327a5f8c4f6a34d1d1117fd9c98d8e38">entt::meta_function_descriptor&lt; Type, Ret(Class::*)(Args...)&gt;::args_type</a></div><div class="ttdeci">std::conditional_t&lt; std::is_same_v&lt; Type, Class &gt;, type_list&lt; Args... &gt;, type_list&lt; Class &amp;, Args... &gt; &gt; args_type</div><div class="ttdoc">Meta function arguments.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00057">utility.hpp:57</a></div></div>
<div class="ttc" id="astructentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4_html_a63465b01fc295a119b70095722c0e677"><div class="ttname"><a href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07Class_1_1_5_08_07Args_8_8_8_08_4.html#a63465b01fc295a119b70095722c0e677">entt::meta_function_descriptor&lt; Type, Ret(Class::*)(Args...)&gt;::return_type</a></div><div class="ttdeci">Ret return_type</div><div class="ttdoc">Meta function return type.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00055">utility.hpp:55</a></div></div>
<div class="ttc" id="astructentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07_5_08_07Args_8_8_8_08_4_html_a55593948f0d7e85a04a1002f528c1bed"><div class="ttname"><a href="structentt_1_1meta__function__descriptor_3_01Type_00_01Ret_07_5_08_07Args_8_8_8_08_4.html#a55593948f0d7e85a04a1002f528c1bed">entt::meta_function_descriptor&lt; Type, Ret(*)(Args...)&gt;::return_type</a></div><div class="ttdeci">Ret return_type</div><div class="ttdoc">Meta function return type.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00075">utility.hpp:75</a></div></div>
<div class="ttc" id="astructentt_1_1meta__function__descriptor_html"><div class="ttname"><a href="structentt_1_1meta__function__descriptor.html">entt::meta_function_descriptor</a></div><div class="ttdoc">Primary template isn't defined on purpose.</div><div class="ttdef"><b>Definition:</b> <a href="meta_2utility_8hpp_source.html#l00021">utility.hpp:21</a></div></div>
<div class="ttc" id="astructentt_1_1meta__handle_html"><div class="ttname"><a href="structentt_1_1meta__handle.html">entt::meta_handle</a></div><div class="ttdoc">Opaque pointers to instances of any type.</div><div class="ttdef"><b>Definition:</b> <a href="meta_8hpp_source.html#l00625">meta.hpp:625</a></div></div>
<div class="ttc" id="astructentt_1_1type__list_html"><div class="ttname"><a href="structentt_1_1type__list.html">entt::type_list</a></div><div class="ttdoc">A class to use to push around lists of types, nothing more.</div><div class="ttdef"><b>Definition:</b> <a href="core_2type__traits_8hpp_source.html#l00128">type_traits.hpp:128</a></div></div>
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