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 <span id="projectnumber">3.2.2</span>
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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_66e9674e8206a335795995fa32a03c91.html">entt</a></li><li class="navelem"><a class="el" href="dir_a53318306f6ac0f7fe657839abd543ab.html">signal</a></li> </ul>
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<div class="title">emitter.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef ENTT_SIGNAL_EMITTER_HPP</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define ENTT_SIGNAL_EMITTER_HPP</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>  </div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>  </div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include <type_traits></span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include <functional></span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <utility></span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <memory></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <list></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "../config/config.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "../core/family.hpp"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "../core/type_traits.hpp"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span><a class="code" href="namespaceentt.html">entt</a> {</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">template</span><<span class="keyword">typename</span> Derived></div>
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<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html"> 42</a></span> <span class="keyword">class </span><a class="code" href="classentt_1_1emitter.html">emitter</a> {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">using</span> <a class="code" href="classentt_1_1family.html">handler_family</a> = <a class="code" href="classentt_1_1family.html">family<struct internal_emitter_handler_family></a>;</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  </div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">struct </span>base_handler {</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">virtual</span> ~base_handler() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1emitter.html#a841edafebf32b85da11657578e887961">empty</a>() <span class="keyword">const</span> ENTT_NOEXCEPT = 0;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a09386e63b0871a304e295921c574318a">clear</a>() ENTT_NOEXCEPT = 0;</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  };</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">struct </span>event_handler: base_handler {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">using</span> listener_type = std::function<void(<span class="keyword">const</span> Event &, Derived &)>;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">using</span> element_type = std::pair<bool, listener_type>;</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">using</span> container_type = std::list<element_type>;</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">using</span> connection_type = <span class="keyword">typename</span> container_type::iterator;</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  </div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1emitter.html#a841edafebf32b85da11657578e887961">empty</a>() <span class="keyword">const</span> ENTT_NOEXCEPT <span class="keyword">override</span> {</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">auto</span> pred = [](<span class="keyword">auto</span> &&element) { <span class="keywordflow">return</span> element.first; };</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">return</span> std::all_of(once_list.cbegin(), once_list.cend(), pred) &&</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  std::all_of(on_list.cbegin(), on_list.cend(), pred);</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  }</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a09386e63b0871a304e295921c574318a">clear</a>() ENTT_NOEXCEPT <span class="keyword">override</span> {</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span>(publishing) {</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">auto</span> func = [](<span class="keyword">auto</span> &&element) { element.first = <span class="keyword">true</span>; };</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  std::for_each(once_list.begin(), once_list.end(), func);</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  std::for_each(on_list.begin(), on_list.end(), func);</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  once_list.clear();</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  on_list.clear();</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  </div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  connection_type <a class="code" href="classentt_1_1emitter.html#a79834d452b0600ebe0e70c54f4a21fd6">once</a>(listener_type <a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener</a>) {</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> once_list.emplace(once_list.cend(), <span class="keyword">false</span>, std::move(<a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener</a>));</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  connection_type <a class="code" href="classentt_1_1emitter.html#a0b580005200bb810a4a3e94320efcd8a">on</a>(listener_type <a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener</a>) {</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> on_list.emplace(on_list.cend(), <span class="keyword">false</span>, std::move(<a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener</a>));</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  }</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  </div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a14409e5061892c1342924b25f4ec2a0c">erase</a>(connection_type conn) ENTT_NOEXCEPT {</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  conn->first = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  </div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span>(!publishing) {</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">auto</span> pred = [](<span class="keyword">auto</span> &&element) { <span class="keywordflow">return</span> element.first; };</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  once_list.remove_if(pred);</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  on_list.remove_if(pred);</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  }</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  </div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a4ece275ff8736bcdcfb4103087801ea2">publish</a>(<span class="keyword">const</span> Event &event, Derived &ref) {</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  container_type swap_list;</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  once_list.swap(swap_list);</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  </div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">auto</span> func = [&event, &ref](<span class="keyword">auto</span> &&element) {</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> element.first ? void() : element.second(event, ref);</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  };</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  </div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  publishing = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  std::for_each(on_list.rbegin(), on_list.rend(), func);</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  std::for_each(swap_list.rbegin(), swap_list.rend(), func);</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  </div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  publishing = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  </div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  on_list.remove_if([](<span class="keyword">auto</span> &&element) { <span class="keywordflow">return</span> element.first; });</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  }</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  </div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordtype">bool</span> publishing{<span class="keyword">false</span>};</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  container_type once_list{};</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  container_type on_list{};</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  };</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  </div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">struct </span>handler_data {</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  std::unique_ptr<base_handler> handler;</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  ENTT_ID_TYPE runtime_type;</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  };</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  </div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event></div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keyword">static</span> <span class="keyword">auto</span> type() ENTT_NOEXCEPT {</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">if</span> constexpr(is_named_type_v<Event>) {</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span> named_type_traits_v<Event>;</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">return</span> handler_family::type<std::decay_t<Event>>;</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  }</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  }</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  </div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event></div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  event_handler<Event> * assure() <span class="keyword">const</span> ENTT_NOEXCEPT {</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">const</span> <span class="keyword">auto</span> htype = type<Event>();</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  handler_data *hdata = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  </div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">if</span> constexpr(is_named_type_v<Event>) {</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keyword">const</span> <span class="keyword">auto</span> it = std::find_if(handlers.begin(), handlers.end(), [htype](<span class="keyword">const</span> <span class="keyword">auto</span> &candidate) {</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> candidate.handler && candidate.runtime_type == htype;</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  });</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  </div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  hdata = (it == handlers.cend() ? &handlers.emplace_back() : &(*it));</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">if</span>(!(htype < handlers.size())) {</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  handlers.resize(htype+1);</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  </div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  hdata = &handlers[htype];</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  </div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">if</span>(hdata->handler && hdata->runtime_type != htype) {</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  handlers.emplace_back();</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  std::swap(handlers[htype], handlers.back());</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  hdata = &handlers[htype];</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  </div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">if</span>(!hdata->handler) {</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  hdata->handler = std::make_unique<event_handler<Event>>();</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  hdata->runtime_type = htype;</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  </div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>event_handler<Event> *<span class="keyword">></span>(hdata->handler.get());</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  </div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event></div>
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<div class="line"><a name="l00168"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579"> 168</a></span>  <span class="keyword">using</span> <a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener</a> = <span class="keyword">typename</span> event_handler<Event>::listener_type;</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  </div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event></div>
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<div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="structentt_1_1emitter_1_1connection.html"> 180</a></span>  <span class="keyword">struct </span><a class="code" href="structentt_1_1emitter_1_1connection.html">connection</a>: <span class="keyword">private</span> event_handler<Event>::connection_type {</div>
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<div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="structentt_1_1emitter_1_1connection.html#a0f3bb10ad57dc0e06298fc9ba38a7bd9"> 182</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classentt_1_1emitter.html">emitter</a>;</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  </div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <a class="code" href="structentt_1_1emitter_1_1connection.html#a846b5190231aee4dd2340ab910adea40">connection</a>() ENTT_NOEXCEPT = default;</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  </div>
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<div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="structentt_1_1emitter_1_1connection.html#a6497a7521b75836697bf4fb97de246d7"> 191</a></span>  <a class="code" href="structentt_1_1emitter_1_1connection.html">connection</a>(typename event_handler<Event>::connection_type conn)</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  : event_handler<Event>::connection_type{std::move(conn)}</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  {}</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  };</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  </div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <a class="code" href="classentt_1_1emitter.html#a9c2e7d7eb8accd1d71e8aacce404e4d9">emitter</a>() ENTT_NOEXCEPT = default;</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  </div>
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<div class="line"><a name="l00200"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a77d175ad8e8060c3628b3fb544cba15f"> 200</a></span>  virtual ~<a class="code" href="classentt_1_1emitter.html">emitter</a>() ENTT_NOEXCEPT {</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  static_assert(std::is_base_of_v<<a class="code" href="classentt_1_1emitter.html">emitter<Derived></a>, Derived>);</div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  }</div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  </div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <a class="code" href="classentt_1_1emitter.html#a9c2e7d7eb8accd1d71e8aacce404e4d9">emitter</a>(<a class="code" href="classentt_1_1emitter.html">emitter</a> &&) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  </div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <a class="code" href="classentt_1_1emitter.html">emitter</a> & <a class="code" href="classentt_1_1emitter.html#ab270d2c6d986621a781467e29e64629c">operator=</a>(<a class="code" href="classentt_1_1emitter.html">emitter</a> &&) = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  </div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event, <span class="keyword">typename</span>... Args></div>
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<div class="line"><a name="l00222"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a4ece275ff8736bcdcfb4103087801ea2"> 222</a></span>  <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a4ece275ff8736bcdcfb4103087801ea2">publish</a>(Args &&... args) {</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  assure<Event>()->publish({ std::forward<Args>(args)... }, *static_cast<Derived *>(<span class="keyword">this</span>));</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  }</div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  </div>
|
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event></div>
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<div class="line"><a name="l00247"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a0b580005200bb810a4a3e94320efcd8a"> 247</a></span>  <a class="code" href="structentt_1_1emitter_1_1connection.html">connection<Event></a> <a class="code" href="classentt_1_1emitter.html#a0b580005200bb810a4a3e94320efcd8a">on</a>(<a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener<Event></a> instance) {</div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">return</span> assure<Event>()->on(std::move(instance));</div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div>
|
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  </div>
|
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event></div>
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<div class="line"><a name="l00272"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a79834d452b0600ebe0e70c54f4a21fd6"> 272</a></span>  <a class="code" href="structentt_1_1emitter_1_1connection.html">connection<Event></a> <a class="code" href="classentt_1_1emitter.html#a79834d452b0600ebe0e70c54f4a21fd6">once</a>(<a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener<Event></a> instance) {</div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keywordflow">return</span> assure<Event>()->once(std::move(instance));</div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  }</div>
|
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  </div>
|
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event></div>
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<div class="line"><a name="l00286"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a14409e5061892c1342924b25f4ec2a0c"> 286</a></span>  <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a14409e5061892c1342924b25f4ec2a0c">erase</a>(<a class="code" href="structentt_1_1emitter_1_1connection.html">connection<Event></a> conn) ENTT_NOEXCEPT {</div>
|
|
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  assure<Event>()->erase(std::move(conn));</div>
|
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  }</div>
|
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  </div>
|
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event></div>
|
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<div class="line"><a name="l00299"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a09386e63b0871a304e295921c574318a"> 299</a></span>  <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a09386e63b0871a304e295921c574318a">clear</a>() ENTT_NOEXCEPT {</div>
|
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  assure<Event>()->clear();</div>
|
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  }</div>
|
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  </div>
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<div class="line"><a name="l00309"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#acedafaefe2c9c91282c84e79aef26a35"> 309</a></span>  <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#acedafaefe2c9c91282c84e79aef26a35">clear</a>() ENTT_NOEXCEPT {</div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  std::for_each(handlers.begin(), handlers.end(), [](<span class="keyword">auto</span> &&hdata) {</div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">return</span> hdata.handler ? hdata.handler->clear() : void();</div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  });</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  }</div>
|
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<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  </div>
|
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Event></div>
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<div class="line"><a name="l00321"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a841edafebf32b85da11657578e887961"> 321</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1emitter.html#a841edafebf32b85da11657578e887961">empty</a>() const ENTT_NOEXCEPT {</div>
|
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<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordflow">return</span> assure<Event>()->empty();</div>
|
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  }</div>
|
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  </div>
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<div class="line"><a name="l00329"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#afbac9d6fb49c28f06cb382715ed92ab9"> 329</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1emitter.html#afbac9d6fb49c28f06cb382715ed92ab9">empty</a>() const ENTT_NOEXCEPT {</div>
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<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordflow">return</span> std::all_of(handlers.cbegin(), handlers.cend(), [](<span class="keyword">auto</span> &&hdata) {</div>
|
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">return</span> !hdata.handler || hdata.handler->empty();</div>
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<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  });</div>
|
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<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  }</div>
|
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  </div>
|
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<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="keyword">private</span>:</div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keyword">mutable</span> std::vector<handler_data> handlers{};</div>
|
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<div class="line"><a name="l00337"></a><span class="lineno"> 337</span> };</div>
|
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<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  </div>
|
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<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  </div>
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> }</div>
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<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  </div>
|
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<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  </div>
|
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<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="preprocessor">#endif // ENTT_SIGNAL_EMITTER_HPP</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="aclassentt_1_1emitter_html_acedafaefe2c9c91282c84e79aef26a35"><div class="ttname"><a href="classentt_1_1emitter.html#acedafaefe2c9c91282c84e79aef26a35">entt::emitter::clear</a></div><div class="ttdeci">void clear() ENTT_NOEXCEPT</div><div class="ttdoc">Disconnects all the listeners.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00309">emitter.hpp:309</a></div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html"><div class="ttname"><a href="classentt_1_1emitter.html">entt::emitter</a></div><div class="ttdoc">General purpose event emitter.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00042">emitter.hpp:42</a></div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html_a841edafebf32b85da11657578e887961"><div class="ttname"><a href="classentt_1_1emitter.html#a841edafebf32b85da11657578e887961">entt::emitter::empty</a></div><div class="ttdeci">bool empty() const ENTT_NOEXCEPT</div><div class="ttdoc">Checks if there are listeners registered for the specific event.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00321">emitter.hpp:321</a></div></div>
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<div class="ttc" id="astructentt_1_1emitter_1_1connection_html"><div class="ttname"><a href="structentt_1_1emitter_1_1connection.html">entt::emitter::connection</a></div><div class="ttdoc">Generic connection type for events.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00180">emitter.hpp:180</a></div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html_afbac9d6fb49c28f06cb382715ed92ab9"><div class="ttname"><a href="classentt_1_1emitter.html#afbac9d6fb49c28f06cb382715ed92ab9">entt::emitter::empty</a></div><div class="ttdeci">bool empty() const ENTT_NOEXCEPT</div><div class="ttdoc">Checks if there are listeners registered with the event emitter.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00329">emitter.hpp:329</a></div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html_a460311b6b4adfabe69b9d964c8d0b579"><div class="ttname"><a href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">entt::emitter::listener</a></div><div class="ttdeci">typename event_handler< Event >::listener_type listener</div><div class="ttdoc">Type of listeners accepted for the given event.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00168">emitter.hpp:168</a></div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html_a14409e5061892c1342924b25f4ec2a0c"><div class="ttname"><a href="classentt_1_1emitter.html#a14409e5061892c1342924b25f4ec2a0c">entt::emitter::erase</a></div><div class="ttdeci">void erase(connection< Event > conn) ENTT_NOEXCEPT</div><div class="ttdoc">Disconnects a listener from the event emitter.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00286">emitter.hpp:286</a></div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html_a09386e63b0871a304e295921c574318a"><div class="ttname"><a href="classentt_1_1emitter.html#a09386e63b0871a304e295921c574318a">entt::emitter::clear</a></div><div class="ttdeci">void clear() ENTT_NOEXCEPT</div><div class="ttdoc">Disconnects all the listeners for the given event type.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00299">emitter.hpp:299</a></div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html_a9c2e7d7eb8accd1d71e8aacce404e4d9"><div class="ttname"><a href="classentt_1_1emitter.html#a9c2e7d7eb8accd1d71e8aacce404e4d9">entt::emitter::emitter</a></div><div class="ttdeci">emitter() ENTT_NOEXCEPT=default</div><div class="ttdoc">Default constructor.</div></div>
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<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#l00012">algorithm.hpp:12</a></div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html_a0b580005200bb810a4a3e94320efcd8a"><div class="ttname"><a href="classentt_1_1emitter.html#a0b580005200bb810a4a3e94320efcd8a">entt::emitter::on</a></div><div class="ttdeci">connection< Event > on(listener< Event > instance)</div><div class="ttdoc">Registers a long-lived listener with the event emitter.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00247">emitter.hpp:247</a></div></div>
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<div class="ttc" id="astructentt_1_1emitter_1_1connection_html_a846b5190231aee4dd2340ab910adea40"><div class="ttname"><a href="structentt_1_1emitter_1_1connection.html#a846b5190231aee4dd2340ab910adea40">entt::emitter::connection::connection</a></div><div class="ttdeci">connection() ENTT_NOEXCEPT=default</div><div class="ttdoc">Default constructor.</div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html_a79834d452b0600ebe0e70c54f4a21fd6"><div class="ttname"><a href="classentt_1_1emitter.html#a79834d452b0600ebe0e70c54f4a21fd6">entt::emitter::once</a></div><div class="ttdeci">connection< Event > once(listener< Event > instance)</div><div class="ttdoc">Registers a short-lived listener with the event emitter.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00272">emitter.hpp:272</a></div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html_ab270d2c6d986621a781467e29e64629c"><div class="ttname"><a href="classentt_1_1emitter.html#ab270d2c6d986621a781467e29e64629c">entt::emitter::operator=</a></div><div class="ttdeci">emitter & operator=(emitter &&)=default</div><div class="ttdoc">Default move assignment operator.</div></div>
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<div class="ttc" id="aclassentt_1_1family_html"><div class="ttname"><a href="classentt_1_1family.html">entt::family</a></div><div class="ttdoc">Dynamic identifier generator.</div><div class="ttdef"><b>Definition:</b> <a href="family_8hpp_source.html#l00020">family.hpp:20</a></div></div>
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<div class="ttc" id="aclassentt_1_1emitter_html_a4ece275ff8736bcdcfb4103087801ea2"><div class="ttname"><a href="classentt_1_1emitter.html#a4ece275ff8736bcdcfb4103087801ea2">entt::emitter::publish</a></div><div class="ttdeci">void publish(Args &&... args)</div><div class="ttdoc">Emits the given event.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00222">emitter.hpp:222</a></div></div>
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