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| <div id="projectbrief">The C++ Library for Apache GraphAr</div> |
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| <div class="title">result.h</div> </div> |
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| <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * distributed with this work for additional information</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * "License"); you may not use this file except in compliance</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * with the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * software distributed under the License is distributed on an</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * KIND, either express or implied. See the License for the</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * specific language governing permissions and limitations</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * under the License.</span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> */</span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#pragma once</span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  </div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <utility></span></div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  </div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "graphar/fwd.h"</span></div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "graphar/status.h"</span></div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  </div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#define GAR_ASSIGN_OR_RAISE_IMPL(result_name, lhs, rexpr) \</span></div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor"> auto&& result_name = (rexpr); \</span></div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"> GAR_RETURN_IF_((result_name).has_error(), (result_name).error(), \</span></div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"> GAR_STRINGIFY(rexpr)); \</span></div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"> lhs = std::move(result_name).value();</span></div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  </div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#define GAR_ASSIGN_OR_RAISE_ERROR_IMPL(result_name, lhs, rexpr) \</span></div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"> auto&& result_name = (rexpr); \</span></div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"> GAR_RAISE_ERROR_IF_((result_name).has_error(), (result_name).error(), \</span></div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor"> GAR_STRINGIFY(rexpr)); \</span></div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"> lhs = std::move(result_name).value();</span></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  </div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#define GAR_ASSIGN_OR_RAISE_NAME(x, y) GAR_CONCAT(x, y)</span></div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  </div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#define GAR_ASSIGN_OR_RAISE(lhs, rexpr) \</span></div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"> GAR_ASSIGN_OR_RAISE_IMPL( \</span></div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"> GAR_ASSIGN_OR_RAISE_NAME(_error_or_value, __COUNTER__), lhs, rexpr);</span></div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  </div> |
| <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor">#define GAR_ASSIGN_OR_RAISE_ERROR(lhs, rexpr) \</span></div> |
| <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor"> GAR_ASSIGN_OR_RAISE_ERROR_IMPL( \</span></div> |
| <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor"> GAR_ASSIGN_OR_RAISE_NAME(_error_or_value, __COUNTER__), lhs, rexpr);</span></div> |
| <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  </div> |
| <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#define GAR_RETURN_ON_ARROW_ERROR_AND_ASSIGN_IMPL(result_name, lhs, rexpr) \</span></div> |
| <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"> auto&& result_name = (rexpr); \</span></div> |
| <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor"> if (!result_name.status().ok()) { \</span></div> |
| <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"> return ::graphar::Status::ArrowError(result_name.status().ToString()); \</span></div> |
| <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor"> } \</span></div> |
| <div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor"> lhs = std::move(result_name).ValueOrDie();</span></div> |
| <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  </div> |
| <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="preprocessor">#define GAR_RETURN_ON_ARROW_ERROR_AND_ASSIGN(lhs, rexpr) \</span></div> |
| <div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor"> GAR_RETURN_ON_ARROW_ERROR_AND_ASSIGN_IMPL( \</span></div> |
| <div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor"> GAR_ASSIGN_OR_RAISE_NAME(_error_or_value, __COUNTER__), lhs, rexpr);</span></div> |
| <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  </div> |
| <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">namespace </span>graphar::internal {</div> |
| <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  </div> |
| <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// Extract Status from Status or Result<T></span></div> |
| <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment">// Useful for the status check macros such as RETURN_NOT_OK.</span></div> |
| <div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">inline</span> <span class="keyword">const</span> Status& GenericToStatus(<span class="keyword">const</span> Result<T>& res) {</div> |
| <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> res.status();</div> |
| <div class="line"><a name="l00112"></a><span class="lineno"> 112</span> }</div> |
| <div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="keyword">inline</span> Status GenericToStatus(Result<T>&& res) {</div> |
| <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">return</span> std::move(res).status();</div> |
| <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> }</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">// namespace graphar::internal</span></div> |
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