http://git-wip-us.apache.org/repos/asf/mesos-site/blob/a3206036/content/api/latest/c++/3rdparty_2stout_2include_2stout_2flags_2flags_8hpp_source.html ---------------------------------------------------------------------- diff --git a/content/api/latest/c++/3rdparty_2stout_2include_2stout_2flags_2flags_8hpp_source.html b/content/api/latest/c++/3rdparty_2stout_2include_2stout_2flags_2flags_8hpp_source.html new file mode 100644 index 0000000..a582d7b --- /dev/null +++ b/content/api/latest/c++/3rdparty_2stout_2include_2stout_2flags_2flags_8hpp_source.html @@ -0,0 +1,1080 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";> +<html xmlns="http://www.w3.org/1999/xhtml";> +<head> +<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> +<meta http-equiv="X-UA-Compatible" content="IE=9"/> +<meta name="generator" content="Doxygen 1.8.5"/> +<title>Apache Mesos: 3rdparty/stout/include/stout/flags/flags.hpp 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+</div><!--header--> +<div class="contents"> +<a href="3rdparty_2stout_2include_2stout_2flags_2flags_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> +<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> +<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// You may obtain a copy of the License at</span></div> +<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div> +<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div> +<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div> +<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> +<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> +<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> +<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> +<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// limitations under the License.</span></div> +<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div> +<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef __STOUT_FLAGS_FLAGS_HPP__</span></div> +<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"></span><span class="preprocessor">#define __STOUT_FLAGS_FLAGS_HPP__</span></div> +<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"></span></div> +<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <algorithm></span></div> +<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <map></span></div> +<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <ostream></span></div> +<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <string></span></div> +<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <typeinfo></span> <span class="comment">// For typeid.</span></div> +<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <vector></span></div> +<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div> +<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/error.hpp</a>></span></div> +<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <<a class="code" href="exit_8hpp.html">stout/exit.hpp</a>></span></div> +<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <<a class="code" href="foreach_8hpp.html">stout/foreach.hpp</a>></span></div> +<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <<a class="code" href="lambda_8hpp.html">stout/lambda.hpp</a>></span></div> +<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <<a class="code" href="multimap_8hpp.html">stout/multimap.hpp</a>></span></div> +<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <<a class="code" href="none_8hpp.html">stout/none.hpp</a>></span></div> +<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="nothing_8hpp.html">stout/nothing.hpp</a>></span></div> +<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="option_8hpp.html">stout/option.hpp</a>></span></div> +<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="code" href="path_8hpp.html">stout/path.hpp</a>></span></div> +<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="some_8hpp.html">stout/some.hpp</a>></span></div> +<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <<a class="code" href="stringify_8hpp.html">stout/stringify.hpp</a>></span></div> +<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="strings_8hpp.html">stout/strings.hpp</a>></span></div> +<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div> +<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div> +<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="fetch_8hpp.html">stout/flags/fetch.hpp</a>></span></div> +<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="flag_8hpp.html">stout/flags/flag.hpp</a>></span></div> +<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div> +<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include <<a class="code" href="3rdparty_2stout_2include_2stout_2os_2environment_8hpp.html">stout/os/environment.hpp</a>></span></div> +<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div> +<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">namespace </span><a class="code" href="namespacemesos_1_1internal_1_1tests.html#af8289f648a916c3f66923867452c7b1b">flags</a> {</div> +<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div> +<div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html"> 44</a></span> <span class="keyword">class </span><a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a></div> +<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> {</div> +<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">public</span>:</div> +<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a8bb1dea9469ded9d5cb5260f794ff381"> 47</a></span>  <a class="code" href="classflags_1_1FlagsBase.html#a8bb1dea9469ded9d5cb5260f794ff381">FlagsBase</a>()</div> +<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  {</div> +<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(&<a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">FlagsBase::help</a>, <span class="stringliteral">"help"</span>, <span class="stringliteral">"Prints this help message"</span>, <span class="keyword">false</span>);</div> +<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div> +<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div> +<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">virtual</span> <a class="code" href="classflags_1_1FlagsBase.html#a8e23f0708a5cccc45a67dd8ea9159439">~FlagsBase</a>() = <span class="keywordflow">default</span>;</div> +<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div> +<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// Explicitly disable rvalue constructors and assignment operators</span></div> +<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// since we plan for this class to be used in virtual inheritance</span></div> +<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// scenarios. Here e.g., constructing from an rvalue will be</span></div> +<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// problematic since we can potentially have multiple lineages</span></div> +<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// leading to the same base class, and could then potentially use a</span></div> +<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="comment">// moved from base object.</span></div> +<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// All of the following functions would be implicitly generated for</span></div> +<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// C++14, but in C++11 only the versions taking lvalue references</span></div> +<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// should be. GCC seems to create all of these even in C++11 mode so</span></div> +<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// we need to explicitly disable them.</span></div> +<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="classflags_1_1FlagsBase.html#a8bb1dea9469ded9d5cb5260f794ff381">FlagsBase</a>(<span class="keyword">const</span> <a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a>&) = <span class="keywordflow">default</span>;</div> +<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="classflags_1_1FlagsBase.html#a8bb1dea9469ded9d5cb5260f794ff381">FlagsBase</a>(<a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a>&&) = <span class="keyword">delete</span>;</div> +<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a>& <a class="code" href="classflags_1_1FlagsBase.html#a51b9edeaf47b010420ce174e1929bf04">operator=</a>(<span class="keyword">const</span> <a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a>&) = <span class="keywordflow">default</span>;</div> +<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a>& <a class="code" href="classflags_1_1FlagsBase.html#a51b9edeaf47b010420ce174e1929bf04">operator=</a>(<a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a>&&) = <span class="keyword">delete</span>;</div> +<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div> +<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// Load any flags from the environment given the variable prefix,</span></div> +<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// i.e., given prefix 'STOUT_' will load a flag named 'foo' via</span></div> +<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// environment variables 'STOUT_foo' or 'STOUT_FOO'.</span></div> +<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">virtual</span> <a class="code" href="classTry.html">Try<Warnings></a> <a class="code" href="classflags_1_1FlagsBase.html#ad4f96e7c673aeefd6b2757505bfb7224">load</a>(<span class="keyword">const</span> std::string& <a class="code" href="namespaceos_1_1libraries_1_1Library.html#ab0e1a0e311049b6d685de1068e8f4690">prefix</a>);</div> +<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div> +<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="comment">// Load any flags from the environment given the variable prefix</span></div> +<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// (see above) followed by loading from the command line (via 'argc'</span></div> +<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">// and 'argv'). If 'unknowns' is true then we'll ignore unknown</span></div> +<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">// flags we see while loading. If 'duplicates' is true then we'll</span></div> +<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// ignore any duplicates we see while loading. Note that if a flag</span></div> +<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">// exists in the environment and the command line, the latter takes</span></div> +<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// precedence.</span></div> +<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">virtual</span> <a class="code" href="classTry.html">Try<Warnings></a> <a class="code" href="classflags_1_1FlagsBase.html#ad4f96e7c673aeefd6b2757505bfb7224">load</a>(</div> +<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<std::string></a>& <a class="code" href="namespaceos_1_1libraries_1_1Library.html#ab0e1a0e311049b6d685de1068e8f4690">prefix</a>,</div> +<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">int</span> argc,</div> +<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span>* argv,</div> +<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">bool</span> unknowns = <span class="keyword">false</span>,</div> +<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordtype">bool</span> duplicates = <span class="keyword">false</span>);</div> +<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div> +<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// Loads any flags from the environment as above but remove processed</span></div> +<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// flags from 'argv' and update 'argc' appropriately. For example:</span></div> +<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// argv = ["/path/program", "--arg1", "hi", "--arg2", "--", "bye"]</span></div> +<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">// Becomes:</span></div> +<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// argv = ["/path/program", "hi", "bye"]</span></div> +<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keyword">virtual</span> <a class="code" href="classTry.html">Try<Warnings></a> <a class="code" href="classflags_1_1FlagsBase.html#ad4f96e7c673aeefd6b2757505bfb7224">load</a>(</div> +<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<std::string></a>& <a class="code" href="namespaceos_1_1libraries_1_1Library.html#ab0e1a0e311049b6d685de1068e8f4690">prefix</a>,</div> +<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordtype">int</span>* argc,</div> +<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordtype">char</span>*** argv,</div> +<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordtype">bool</span> unknowns = <span class="keyword">false</span>,</div> +<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordtype">bool</span> duplicates = <span class="keyword">false</span>);</div> +<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div> +<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// Loads flags from the given map where the keys represent the flag</span></div> +<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// name and the values represent the flag values. For example:</span></div> +<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">// values = { 'arg1': 'hi',</span></div> +<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// 'arg2': 'bye' }</span></div> +<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="comment">// Optionally, if `prefix` is specified, flags will also be loaded</span></div> +<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="comment">// from environment variables with the given prefix.</span></div> +<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="comment">// Note that if a flag exists in both the environment and the values map,</span></div> +<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="comment">// the latter takes precedence.</span></div> +<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">virtual</span> <a class="code" href="classTry.html">Try<Warnings></a> <a class="code" href="classflags_1_1FlagsBase.html#ad4f96e7c673aeefd6b2757505bfb7224">load</a>(</div> +<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">const</span> std::map<std::string, <a class="code" href="classOption.html">Option<std::string></a>>& values,</div> +<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordtype">bool</span> unknowns = <span class="keyword">false</span>,</div> +<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<std::string></a>& <a class="code" href="namespaceos_1_1libraries_1_1Library.html#ab0e1a0e311049b6d685de1068e8f4690">prefix</a> = <a class="code" href="structNone.html">None</a>());</div> +<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div> +<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="comment">// Loads flags from the map and optionally the environment vars</span></div> +<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// if a prefix is specified. Follows the behavior of the</span></div> +<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="comment">// method `load(values, unknowns, prefix)` above in terms</span></div> +<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">// of precedence and load order.</span></div> +<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">virtual</span> <a class="code" href="classTry.html">Try<Warnings></a> <a class="code" href="classflags_1_1FlagsBase.html#ad4f96e7c673aeefd6b2757505bfb7224">load</a>(</div> +<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">const</span> std::map<std::string, std::string>& values,</div> +<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">bool</span> unknowns = <span class="keyword">false</span>,</div> +<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<std::string></a>& <a class="code" href="namespaceos_1_1libraries_1_1Library.html#ab0e1a0e311049b6d685de1068e8f4690">prefix</a> = <a class="code" href="structNone.html">None</a>());</div> +<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div> +<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// Returns a string describing the flags, preceded by a "usage</span></div> +<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// message" that will be prepended to that description (see</span></div> +<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// 'FlagsBase::usageMessage_').</span></div> +<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="comment">// The optional 'message' passed to this function will be prepended</span></div> +<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">// to the generated string returned from this function.</span></div> +<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// Derived classes and clients can modify the standard usage message</span></div> +<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// by setting it before calling this method via 'setUsageMessage()'.</span></div> +<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="comment">// This allows one to set a generic message that will be used for</span></div> +<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// each invocation of this method, and to additionally add one for</span></div> +<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// the particular invocation:</span></div> +<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// MyFlags flags;</span></div> +<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="comment">// flags.setUsageMessage("Custom Usage Message");</span></div> +<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// ...</span></div> +<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// if (flags.foo.isNone()) {</span></div> +<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// std::cerr << flags.usage("Missing required --foo flag");</span></div> +<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// }</span></div> +<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="comment">// The 'message' would be emitted first, followed by a blank line,</span></div> +<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// then the 'usageMessage_', finally followed by the flags'</span></div> +<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// description, for example:</span></div> +<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// Missing required --foo flag</span></div> +<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">// Custom Usage Message</span></div> +<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">// --[no-]help Prints this help message. (default: false)</span></div> +<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// --foo=VALUE Description about 'foo' here.</span></div> +<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// --bar=VALUE Description about 'bar' here. (default: 42)</span></div> +<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  std::string <a class="code" href="classflags_1_1FlagsBase.html#a461ac2219b52b3b9bd22e8ac4fafe02a">usage</a>(<span class="keyword">const</span> <a class="code" href="classOption.html">Option<std::string></a>& message = <a class="code" href="structNone.html">None</a>()) <span class="keyword">const</span>;</div> +<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div> +<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// Sets the default message that is prepended to the flags'</span></div> +<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// description in 'usage()'.</span></div> +<div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#ac99b7ca8863b671274472f571de0060a"> 164</a></span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#ac99b7ca8863b671274472f571de0060a">setUsageMessage</a>(<span class="keyword">const</span> std::string& message)</div> +<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  {</div> +<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <a class="code" href="classflags_1_1FlagsBase.html#a40658af8fbe421af67a530f3c35d6f4a">usageMessage_</a> = <a class="code" href="some_8hpp.html#a2048f5c3b4ee79448c012cf6dc82a020">Some</a>(message);</div> +<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div> +<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div> +<div class="line"><a name="l00169"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a349a65728ecb08c50488ce70e2fdb03e"> 169</a></span>  <span class="keyword">typedef</span> std::map<std::string, Flag>::const_iterator <a class="code" href="classflags_1_1FlagsBase.html#a349a65728ecb08c50488ce70e2fdb03e">const_iterator</a>;</div> +<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div> +<div class="line"><a name="l00171"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a61b5732037888efa46e97605c3493427"> 171</a></span>  <a class="code" href="classflags_1_1FlagsBase.html#a349a65728ecb08c50488ce70e2fdb03e">const_iterator</a> <a class="code" href="classflags_1_1FlagsBase.html#a61b5732037888efa46e97605c3493427">begin</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> flags_.begin(); }</div> +<div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a7dc9f7d8739f83bdbcaa0bcd071b9936"> 172</a></span>  <a class="code" href="classflags_1_1FlagsBase.html#a349a65728ecb08c50488ce70e2fdb03e">const_iterator</a> <a class="code" href="classflags_1_1FlagsBase.html#a7dc9f7d8739f83bdbcaa0bcd071b9936">end</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> flags_.end(); }</div> +<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div> +<div class="line"><a name="l00174"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#ac73a41c2c9ba65800a8aad11ba595612"> 174</a></span>  <span class="keyword">typedef</span> std::map<std::string, Flag>::iterator <a class="code" href="classflags_1_1FlagsBase.html#ac73a41c2c9ba65800a8aad11ba595612">iterator</a>;</div> +<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div> +<div class="line"><a name="l00176"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a03120420a1f53af099545eb916d403c0"> 176</a></span>  <a class="code" href="classflags_1_1FlagsBase.html#ac73a41c2c9ba65800a8aad11ba595612">iterator</a> <a class="code" href="classflags_1_1FlagsBase.html#a03120420a1f53af099545eb916d403c0">begin</a>() { <span class="keywordflow">return</span> flags_.begin(); }</div> +<div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a2afbdc821eeefba18d7315198bdada91"> 177</a></span>  <a class="code" href="classflags_1_1FlagsBase.html#ac73a41c2c9ba65800a8aad11ba595612">iterator</a> <a class="code" href="classflags_1_1FlagsBase.html#a2afbdc821eeefba18d7315198bdada91">end</a>() { <span class="keywordflow">return</span> flags_.end(); }</div> +<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div> +<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">// In the overloaded function signatures for `add` found below, we use a `T2*`</span></div> +<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="comment">// for the default flag value where applicable. This is used instead of an</span></div> +<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// `Option<T2>&` because when string literals are passed to this parameter,</span></div> +<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="comment">// `Option` infers a character array type, which causes problems in the</span></div> +<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">// current implementation of `Option`. See MESOS-5471.</span></div> +<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div> +<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2, <span class="keyword">typename</span> F></div> +<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(</div> +<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  T1 Flags::*t1,</div> +<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<Name></a>& alias,</div> +<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keyword">const</span> std::string& <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>,</div> +<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keyword">const</span> T2* t2,</div> +<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  F <a class="code" href="namespaceappc_1_1spec.html#a1f003511d7ad7c4792223d0b11b60f62">validate</a>);</div> +<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div> +<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2, <span class="keyword">typename</span> F></div> +<div class="line"><a name="l00195"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#aec8d495e0dfe03b26cb3482cdd4137ce"> 195</a></span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#aec8d495e0dfe03b26cb3482cdd4137ce">add</a>(</div> +<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  T1 Flags::*t1,</div> +<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<Name></a>& alias,</div> +<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keyword">const</span> std::string& <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>,</div> +<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keyword">const</span> T2& t2,</div> +<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  F <a class="code" href="namespaceappc_1_1spec.html#a1f003511d7ad7c4792223d0b11b60f62">validate</a>)</div> +<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  {</div> +<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(t1, name, alias, help, &t2, validate);</div> +<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  }</div> +<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div> +<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2, <span class="keyword">typename</span> F></div> +<div class="line"><a name="l00207"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a609f23d3e09a55acbf23adaf48f3740d"> 207</a></span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a609f23d3e09a55acbf23adaf48f3740d">add</a>(</div> +<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  T1 Flags::*t1,</div> +<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keyword">const</span> std::string& <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>,</div> +<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">const</span> T2& t2,</div> +<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  F <a class="code" href="namespaceappc_1_1spec.html#a1f003511d7ad7c4792223d0b11b60f62">validate</a>)</div> +<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  {</div> +<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(t1, name, <a class="code" href="structNone.html">None</a>(), help, &t2, validate);</div> +<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div> +<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div> +<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2></div> +<div class="line"><a name="l00218"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a13fdd4d41feadbb778e261115d183032"> 218</a></span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a13fdd4d41feadbb778e261115d183032">add</a>(</div> +<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  T1 Flags::*t1,</div> +<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keyword">const</span> std::string& <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>,</div> +<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">const</span> T2& t2)</div> +<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  {</div> +<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(t1, name, <a class="code" href="structNone.html">None</a>(), help, &t2, [](<span class="keyword">const</span> T1&) { <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>(); });</div> +<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  }</div> +<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div> +<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T></div> +<div class="line"><a name="l00228"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a23fcc07f0926fee64655aec6ecd89386"> 228</a></span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a23fcc07f0926fee64655aec6ecd89386">add</a>(</div> +<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  T Flags::*t,</div> +<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keyword">const</span> std::string& <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>)</div> +<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  {</div> +<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(t,</div> +<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  name,</div> +<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <a class="code" href="structNone.html">None</a>(),</div> +<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  help,</div> +<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  static_cast<const T*>(<span class="keyword">nullptr</span>),</div> +<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  [](<span class="keyword">const</span> T&) { <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>(); });</div> +<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  }</div> +<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> </div> +<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2></div> +<div class="line"><a name="l00242"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a6b89b575b2d3787200b5df48061e934e"> 242</a></span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a6b89b575b2d3787200b5df48061e934e">add</a>(</div> +<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  T1 Flags::*t1,</div> +<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<Name></a>& alias,</div> +<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keyword">const</span> std::string& <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>,</div> +<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keyword">const</span> T2& t2)</div> +<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  {</div> +<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(t1, name, alias, help, &t2, [](<span class="keyword">const</span> T1&) { <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>(); });</div> +<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  }</div> +<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div> +<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T, <span class="keyword">typename</span> F></div> +<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(</div> +<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <a class="code" href="classOption.html">Option<T></a> Flags::*option,</div> +<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<Name></a>& alias,</div> +<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keyword">const</span> std::string& <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>,</div> +<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  F <a class="code" href="namespaceappc_1_1spec.html#a1f003511d7ad7c4792223d0b11b60f62">validate</a>);</div> +<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> </div> +<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T, <span class="keyword">typename</span> F></div> +<div class="line"><a name="l00261"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a4511f9842bbc36b82574739ae22fd141"> 261</a></span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a4511f9842bbc36b82574739ae22fd141">add</a>(</div> +<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <a class="code" href="classOption.html">Option<T></a> Flags::*option,</div> +<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keyword">const</span> std::string& <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>,</div> +<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  F <a class="code" href="namespaceappc_1_1spec.html#a1f003511d7ad7c4792223d0b11b60f62">validate</a>)</div> +<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  {</div> +<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(option, name, <a class="code" href="structNone.html">None</a>(), help, validate);</div> +<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  }</div> +<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div> +<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T></div> +<div class="line"><a name="l00271"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a956c60a798c7ec3ef687de58a51c2990"> 271</a></span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a956c60a798c7ec3ef687de58a51c2990">add</a>(</div> +<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <a class="code" href="classOption.html">Option<T></a> Flags::*option,</div> +<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keyword">const</span> std::string& <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>)</div> +<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  {</div> +<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(option, name, <a class="code" href="structNone.html">None</a>(), help, [](<span class="keyword">const</span> <a class="code" href="classOption.html">Option<T></a>&) { <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>(); });</div> +<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  }</div> +<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> </div> +<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T></div> +<div class="line"><a name="l00280"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a56da290b1a3b00816c11100aaed3a0cc"> 280</a></span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a56da290b1a3b00816c11100aaed3a0cc">add</a>(</div> +<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <a class="code" href="classOption.html">Option<T></a> Flags::*option,</div> +<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<Name></a>& alias,</div> +<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keyword">const</span> std::string& <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>)</div> +<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  {</div> +<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(option, name, alias, help, [](<span class="keyword">const</span> <a class="code" href="classOption.html">Option<T></a>&) { <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>(); });</div> +<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  }</div> +<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div> +<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(<span class="keyword">const</span> <a class="code" href="structflags_1_1Flag.html">Flag</a>& flag);</div> +<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div> +<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">// TODO(marco): IMO the entire --help functionality should be</span></div> +<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// encapsulated inside the FlagsBase class.</span></div> +<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="comment">// For now, exposing this for the caller(s) to decide what to</span></div> +<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="comment">// do when the user asks for help.</span></div> +<div class="line"><a name="l00295"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8"> 295</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>;</div> +<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div> +<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="comment">// Extract environment variable "flags" with the specified prefix.</span></div> +<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  std::map<std::string, Option<std::string>> <a class="code" href="classflags_1_1FlagsBase.html#aaef908bce392f88d029b46ee241bda68">extract</a>(</div> +<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keyword">const</span> std::string& <a class="code" href="namespaceos_1_1libraries_1_1Library.html#ab0e1a0e311049b6d685de1068e8f4690">prefix</a>) <span class="keyword">const</span>;</div> +<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div> +<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="comment">// Build environment variables from the flags.</span></div> +<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  std::map<std::string, std::string> <a class="code" href="classflags_1_1FlagsBase.html#a4b9c864acfcfc3e06fd03ccfe0dcb03e">buildEnvironment</a>(</div> +<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<std::string></a>& <a class="code" href="namespaceos_1_1libraries_1_1Library.html#ab0e1a0e311049b6d685de1068e8f4690">prefix</a> = <a class="code" href="structNone.html">None</a>()) <span class="keyword">const</span>;</div> +<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div> +<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="keyword">protected</span>:</div> +<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">// The program's name, extracted from argv[0] by default;</span></div> +<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">// declared 'protected' so that derived classes can alter this</span></div> +<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="comment">// behavior.</span></div> +<div class="line"><a name="l00309"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a88f899fbf20a712e8bb7236284b41bf4"> 309</a></span>  std::string <a class="code" href="classflags_1_1FlagsBase.html#a88f899fbf20a712e8bb7236284b41bf4">programName_</a>;</div> +<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> </div> +<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="comment">// An optional custom usage message, will be printed 'as is'</span></div> +<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="comment">// just above the list of flags and their explanation.</span></div> +<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="comment">// It is 'None' by default, in which case the default</span></div> +<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="comment">// behavior is to print "Usage:" followed by the 'programName_'.</span></div> +<div class="line"><a name="l00315"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a40658af8fbe421af67a530f3c35d6f4a"> 315</a></span>  <a class="code" href="classOption.html">Option<std::string></a> <a class="code" href="classflags_1_1FlagsBase.html#a40658af8fbe421af67a530f3c35d6f4a">usageMessage_</a>;</div> +<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div> +<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="keyword">private</span>:</div> +<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <a class="code" href="classTry.html">Try<Warnings></a> <a class="code" href="classflags_1_1FlagsBase.html#ad4f96e7c673aeefd6b2757505bfb7224">load</a>(</div> +<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <a class="code" href="classMultimap.html">Multimap</a><std::string, <a class="code" href="classOption.html">Option<std::string></a>>& values,</div> +<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordtype">bool</span> unknowns = <span class="keyword">false</span>,</div> +<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keywordtype">bool</span> duplicates = <span class="keyword">false</span>,</div> +<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<std::string></a>& <a class="code" href="namespaceos_1_1libraries_1_1Library.html#ab0e1a0e311049b6d685de1068e8f4690">prefix</a> = <a class="code" href="structNone.html">None</a>());</div> +<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div> +<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">// Maps flag's name to flag.</span></div> +<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  std::map<std::string, Flag> flags_;</div> +<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> </div> +<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="comment">// Maps flag's alias to flag's name.</span></div> +<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  std::map<std::string, std::string> aliases;</div> +<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> };</div> +<div class="line"><a name="l00330"></a><span class="lineno"> 330</span> </div> +<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div> +<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2, <span class="keyword">typename</span> F></div> +<div class="line"><a name="l00333"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226"> 333</a></span> <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">FlagsBase::add</a>(</div> +<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  T1 Flags::*t1,</div> +<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<Name></a>& alias,</div> +<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keyword">const</span> std::string& help,</div> +<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keyword">const</span> T2* t2,</div> +<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  F <a class="code" href="namespaceappc_1_1spec.html#a1f003511d7ad7c4792223d0b11b60f62">validate</a>)</div> +<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> {</div> +<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="comment">// Don't bother adding anything if the pointer is `nullptr`.</span></div> +<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">if</span> (t1 == <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">return</span>;</div> +<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  }</div> +<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div> +<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  Flags* <a class="code" href="namespacemesos_1_1internal_1_1tests.html#af8289f648a916c3f66923867452c7b1b">flags</a> = <span class="keyword">dynamic_cast<</span>Flags*<span class="keyword">></span>(<span class="keyword">this</span>);</div> +<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">if</span> (flags == <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <a class="code" href="abort_8hpp.html#a4d84a74fe6e4f84bc3d2f901b9e89f93">ABORT</a>(<span class="stringliteral">"Attempted to add flag '"</span> + name.<a class="code" href="structflags_1_1Name.html#a5cb72239bca937b5491bdcb737a8eb09">value</a> +</div> +<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="stringliteral">"' with incompatible type"</span>);</div> +<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  }</div> +<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> </div> +<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <a class="code" href="structflags_1_1Flag.html">Flag</a> flag;</div> +<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  flag.<a class="code" href="structflags_1_1Flag.html#a239ef85712dd1cb4c06bcd1177a489b2">name</a> = <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>;</div> +<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  flag.<a class="code" href="structflags_1_1Flag.html#aa8ffc927c2aef997452107b2f3157ac9">alias</a> = alias;</div> +<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  flag.<a class="code" href="structflags_1_1Flag.html#a11de7f3360646317a33fadf3899661e2">help</a> = <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>;</div> +<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  flag.<a class="code" href="structflags_1_1Flag.html#a48427029bfe0f14d178fec0e2388fb84">boolean</a> = <span class="keyword">typeid</span>(T1) == <span class="keyword">typeid</span>(<span class="keywordtype">bool</span>);</div> +<div class="line"><a name="l00357"></a><span class="lineno"> 357</span> </div> +<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keywordflow">if</span> (t2 != <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  flags->*t1 = *t2; <span class="comment">// Set the default.</span></div> +<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  flag.<a class="code" href="structflags_1_1Flag.html#a2ca906bb34f8ae97ccacf4cf30b9df2c">required</a> = <span class="keyword">false</span>;</div> +<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  flag.<a class="code" href="structflags_1_1Flag.html#a2ca906bb34f8ae97ccacf4cf30b9df2c">required</a> = <span class="keyword">true</span>;</div> +<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  }</div> +<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> </div> +<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="comment">// NOTE: We need to take FlagsBase* (or const FlagsBase&) as the</span></div> +<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="comment">// first argument to 'load', 'stringify', and 'validate' so that we</span></div> +<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// use the correct instance of FlagsBase. In other words, we can't</span></div> +<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="comment">// capture 'this' here because it's possible that the FlagsBase</span></div> +<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="comment">// object that we're working with when we invoke FlagsBase::add is</span></div> +<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="comment">// not the same instance as 'this' when these lambdas get invoked.</span></div> +<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> </div> +<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  flag.<a class="code" href="structflags_1_1Flag.html#a5d90b6d76c1e4acb564b7c763e6dc700">load</a> = [t1](<a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a>* <a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>, <span class="keyword">const</span> std::string& value) -> <a class="code" href="classTry.html">Try<Nothing></a> {</div> +<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  Flags* flags = <span class="keyword">dynamic_cast<</span>Flags*<span class="keyword">></span>(<a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>);</div> +<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keywordflow">if</span> (flags != <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="comment">// NOTE: 'fetch' "retrieves" the value if necessary and then</span></div> +<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="comment">// invokes 'parse'. See 'fetch' for more details.</span></div> +<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <a class="code" href="classTry.html">Try<T1></a> t = fetch<T1>(value);</div> +<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordflow">if</span> (t.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>()) {</div> +<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  flags->*t1 = t.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>();</div> +<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to load value '"</span> + value + <span class="stringliteral">"': "</span> + t.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> +<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  }</div> +<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  }</div> +<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> </div> +<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keywordflow">return</span> <a class="code" href="structNothing.html">Nothing</a>();</div> +<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  };</div> +<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> </div> +<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  flag.<a class="code" href="structflags_1_1Flag.html#a0f4678e24084c0fd415f3504df8f2c14">stringify</a> = [t1](<span class="keyword">const</span> <a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a>& <a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>) -> <a class="code" href="classOption.html">Option<std::string></a> {</div> +<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keyword">const</span> Flags* flags = <span class="keyword">dynamic_cast<</span><span class="keyword">const </span>Flags*<span class="keyword">></span>(&<a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>);</div> +<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordflow">if</span> (flags != <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordflow">return</span> <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(flags->*t1);</div> +<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  }</div> +<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div> +<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  };</div> +<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> </div> +<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  flag.<a class="code" href="structflags_1_1Flag.html#a89d5785cb8b4b567789c73fea2004709">validate</a> = [t1, <a class="code" href="namespaceappc_1_1spec.html#a1f003511d7ad7c4792223d0b11b60f62">validate</a>](<span class="keyword">const</span> <a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a>& <a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>) -> <a class="code" href="classOption.html">Option<Error></a> {</div> +<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keyword">const</span> Flags* flags = <span class="keyword">dynamic_cast<</span><span class="keyword">const </span>Flags*<span class="keyword">></span>(&<a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>);</div> +<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">if</span> (flags != <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceappc_1_1spec.html#a1f003511d7ad7c4792223d0b11b60f62">validate</a>(flags->*t1);</div> +<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  }</div> +<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div> +<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  };</div> +<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> </div> +<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="comment">// Update the help string to include the default value.</span></div> +<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  flag.<a class="code" href="structflags_1_1Flag.html#a11de7f3360646317a33fadf3899661e2">help</a> += help.size() > 0 && help.find_last_of(<span class="stringliteral">"\n\r"</span>) != help.size() - 1</div> +<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  ? <span class="stringliteral">" (default: "</span> <span class="comment">// On same line, add space.</span></div> +<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  : <span class="stringliteral">"(default: "</span>; <span class="comment">// On newline.</span></div> +<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">if</span> (t2 != <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  flag.<a class="code" href="structflags_1_1Flag.html#a11de7f3360646317a33fadf3899661e2">help</a> += <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(*t2);</div> +<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  }</div> +<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  flag.<a class="code" href="structflags_1_1Flag.html#a11de7f3360646317a33fadf3899661e2">help</a> += <span class="stringliteral">")"</span>;</div> +<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div> +<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">add</a>(flag);</div> +<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> }</div> +<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div> +<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div> +<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Flags, <span class="keyword">typename</span> T, <span class="keyword">typename</span> F></div> +<div class="line"><a name="l00418"></a><span class="lineno"><a class="line" href="classflags_1_1FlagsBase.html#a2277b6a7cbb3d88bb74b27ac5a3a546d"> 418</a></span> <span class="keywordtype">void</span> <a class="code" href="classflags_1_1FlagsBase.html#a09ebe840242a3b0fbd3263bb6c7ca226">FlagsBase::add</a>(</div> +<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <a class="code" href="classOption.html">Option<T></a> Flags::*option,</div> +<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keyword">const</span> <a class="code" href="structflags_1_1Name.html">Name</a>& <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>,</div> +<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option<Name></a>& alias,</div> +<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keyword">const</span> std::string& help,</div> +<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  F <a class="code" href="namespaceappc_1_1spec.html#a1f003511d7ad7c4792223d0b11b60f62">validate</a>)</div> +<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> {</div> +<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="comment">// Don't bother adding anything if the pointer is `nullptr`.</span></div> +<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordflow">if</span> (option == <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keywordflow">return</span>;</div> +<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  }</div> +<div class="line"><a name="l00429"></a><span class="lineno"> 429</span> </div> +<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  Flags* <a class="code" href="namespacemesos_1_1internal_1_1tests.html#af8289f648a916c3f66923867452c7b1b">flags</a> = <span class="keyword">dynamic_cast<</span>Flags*<span class="keyword">></span>(<span class="keyword">this</span>);</div> +<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordflow">if</span> (flags == <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <a class="code" href="abort_8hpp.html#a4d84a74fe6e4f84bc3d2f901b9e89f93">ABORT</a>(<span class="stringliteral">"Attempted to add flag '"</span> + name.<a class="code" href="structflags_1_1Name.html#a5cb72239bca937b5491bdcb737a8eb09">value</a> +</div> +<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="stringliteral">"' with incompatible type"</span>);</div> +<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  }</div> +<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div> +<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <a class="code" href="structflags_1_1Flag.html">Flag</a> flag;</div> +<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  flag.<a class="code" href="structflags_1_1Flag.html#a239ef85712dd1cb4c06bcd1177a489b2">name</a> = <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a>;</div> +<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  flag.<a class="code" href="structflags_1_1Flag.html#aa8ffc927c2aef997452107b2f3157ac9">alias</a> = alias;</div> +<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  flag.<a class="code" href="structflags_1_1Flag.html#a11de7f3360646317a33fadf3899661e2">help</a> = <a class="code" href="classflags_1_1FlagsBase.html#a7346f4067bc3f786c627daa76d9221d8">help</a>;</div> +<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  flag.<a class="code" href="structflags_1_1Flag.html#a48427029bfe0f14d178fec0e2388fb84">boolean</a> = <span class="keyword">typeid</span>(T) == <span class="keyword">typeid</span>(<span class="keywordtype">bool</span>);</div> +<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  flag.<a class="code" href="structflags_1_1Flag.html#a2ca906bb34f8ae97ccacf4cf30b9df2c">required</a> = <span class="keyword">false</span>;</div> +<div class="line"><a name="l00442"></a><span class="lineno"> 442</span> </div> +<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="comment">// NOTE: See comment above in Flags::T* overload of FLagsBase::add</span></div> +<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="comment">// for why we need to pass FlagsBase* (or const FlagsBase&) as a</span></div> +<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="comment">// parameter.</span></div> +<div class="line"><a name="l00446"></a><span class="lineno"> 446</span> </div> +<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  flag.<a class="code" href="structflags_1_1Flag.html#a5d90b6d76c1e4acb564b7c763e6dc700">load</a> =</div> +<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  [option](<a class="code" href="classflags_1_1FlagsBase.html">FlagsBase</a>* <a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>, <span class="keyword">const</span> std::string& value) -> <a class="code" href="classTry.html">Try<Nothing></a> {</div> +<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  Flags* flags = <span class="keyword">dynamic_cast<</span>Flags*<span class="keyword">></span>(<a class="code" href="namespaceprocess.html#a373bd5e2bd8f2694e4589293af477854">base</a>);</div> +<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keywordflow">if</span> (flags != <span class="keyword">nullptr</span>) {</div> +<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="comment">// NOTE: 'fetch' "retrieves" the value if necessary and then</span></div> +<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="comment">// invokes 'parse'. See 'fetch' for more details.</span></div> +<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <a class="code" href="classTry.html">Try<T></a> t = fetch<T>(value);</div> +<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="keywordflow">if</span> (t.<a class="code" href="classTry.html#a6543d7d5db4f298bcd673bf3cd509acc">isSome</a>()) {</div> +<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  flags->*option = <a class="code" href="some_8hpp.html#a2048f5c3b4ee79448c012cf6dc82a020">Some</a>(t.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div> +<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to load value '"</span> + value + <span class="stringliteral">"': "</span> + t.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> +<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  }</div> +<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  }</div> +<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> </div> +<div class="line"><a name="l00461
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