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1 | <?php |
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2 | |||
3 | namespace ReenExe\CompareDataStructure; |
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4 | |||
5 | class Comparator |
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6 | { |
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7 | private $custom = []; |
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8 | |||
9 | /** |
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10 | * @var array |
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11 | */ |
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12 | private $temporaryCustom; |
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13 | |||
14 | /** |
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15 | * @var array |
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16 | */ |
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17 | private $exists; |
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18 | |||
19 | public static function addCustom(array $custom) |
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20 | { |
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21 | $instance = self::instance(); |
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22 | |||
23 | $instance->custom = $instance->custom + $custom; |
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24 | } |
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25 | |||
26 | private function initialize(array $temporaryCustom) |
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27 | { |
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28 | $this->temporaryCustom = $this->custom + $temporaryCustom; |
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29 | |||
30 | $this->exists = array_keys($this->temporaryCustom); |
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31 | } |
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32 | |||
33 | /** |
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34 | * @param $data |
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35 | * @param $structure |
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36 | * @param array $custom |
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37 | * @return StructureDiffInfo |
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38 | */ |
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39 | public static function check($data, $structure, array $custom = []) |
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40 | { |
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41 | $instance = self::instance(); |
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42 | |||
43 | $instance->initialize($custom); |
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44 | |||
45 | return $instance->compare($data, $structure) ?: StructureDiffInfo::createEqual(); |
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46 | } |
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47 | |||
48 | private function compare($data, $structure) |
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49 | { |
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50 | if (is_string($structure)) { |
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51 | return $this->diffType($data, $structure); |
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52 | } |
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53 | |||
54 | if (is_array($structure)) { |
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55 | return $this->diffStructure($data, $structure); |
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56 | } |
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57 | |||
58 | return $this->createDiff('undefined:structure', StructureDiffInfo::CONFIG); |
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59 | } |
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60 | |||
61 | /** |
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62 | * @param $value |
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63 | * @param array $types |
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64 | * @return StructureDiffInfo|null |
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65 | */ |
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66 | private function diffTypes($value, array $types) |
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67 | { |
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68 | /** |
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69 | * Возможно тут будет переопределение проверки |
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70 | * К примеру формата даты или длины |
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71 | */ |
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72 | |||
73 | if (in_array($this->getType($value), $types)) { |
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74 | return null; |
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75 | } |
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76 | |||
77 | if ($this->exists) { |
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78 | if ($intersect = array_intersect($types, $this->exists)) { |
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79 | foreach ($intersect as $key) { |
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80 | $diff = $this->compare($value, $this->temporaryCustom[$key]); |
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81 | |||
82 | if (empty($diff)) { |
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83 | return null; |
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84 | } |
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85 | } |
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86 | |||
87 | return $this->processDiff($diff, "custom:type:$key"); |
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88 | } |
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89 | } |
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90 | |||
91 | return $this->createDiff('var:type', StructureDiffInfo::TYPE); |
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92 | } |
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93 | |||
94 | private function diffType($data, $structure) |
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95 | { |
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96 | $needTypes = explode('|', $structure); |
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97 | |||
98 | return $this->diffTypes($data, $needTypes); |
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99 | } |
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100 | |||
101 | /** |
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102 | * @param $data |
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103 | * @param $set |
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104 | * @return StructureDiffInfo|null |
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105 | */ |
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106 | private function diffSet($data, $set) |
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107 | { |
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108 | $data = (array)$data; |
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109 | $set = (array)$set; |
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110 | |||
111 | if (array_diff($data, $set)) { |
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112 | return $this->createDiff('set:out', StructureDiffInfo::TYPE); |
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113 | } |
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114 | |||
115 | foreach ($data as $value) { |
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116 | if (!in_array($value, $set, true)) { |
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117 | return $this->createDiff('var:type', StructureDiffInfo::TYPE); |
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118 | } |
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119 | } |
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120 | |||
121 | return null; |
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122 | } |
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123 | |||
124 | /** |
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125 | * @param $data |
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126 | * @param array $structure |
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127 | * @return StructureDiffInfo|null |
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128 | */ |
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129 | private function diffStructure($data, array $structure) |
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130 | { |
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131 | if (isset($structure['set'])) { |
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132 | return $this->diffSet($data, $structure['set']); |
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133 | } |
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134 | |||
135 | if ($diff = $this->diffTypes($data, $this->getStructureType($structure))) { |
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136 | return $diff; |
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137 | } |
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138 | |||
139 | if (is_array($data)) { |
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140 | return $this->diffArrayData($data, $structure); |
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141 | } |
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142 | |||
143 | return null; |
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144 | } |
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145 | |||
146 | /** |
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147 | * @param array $data |
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148 | * @param array $structure |
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149 | * @return StructureDiffInfo|null |
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150 | */ |
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151 | private function diffArrayData(array $data, array $structure) |
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152 | { |
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153 | if (isset($structure['assoc'])) { |
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154 | return $this->assoc($structure['assoc'], $data); |
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155 | } |
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156 | |||
157 | if (isset($structure['values'])) { |
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158 | return $this->diffValuesStructure($data, $structure['values']); |
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159 | } |
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160 | |||
161 | return $this->createDiff('structure:type', StructureDiffInfo::CONFIG); |
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162 | } |
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163 | |||
164 | /** |
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165 | * @param array $data |
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166 | * @param $structure |
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167 | * @return StructureDiffInfo|null |
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168 | */ |
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169 | private function diffValuesStructure(array $data, $structure) |
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170 | { |
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171 | if (is_array($structure)) { |
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172 | foreach ($data as $key => $subData) { |
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173 | if ($diff = $this->assoc($structure, $subData)) { |
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0 ignored issues
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174 | return $this->processDiff($diff, "[$key]"); |
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175 | } |
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176 | |||
177 | } |
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178 | } elseif (is_string($structure)) { |
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179 | $needTypes = explode('|', $structure); |
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180 | |||
181 | foreach ($data as $key => $subData) { |
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182 | if ($diff = $this->diffTypes($subData, $needTypes)) { |
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0 ignored issues
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Are you sure the assignment to
$diff is correct as $this->diffTypes($subData, $needTypes) (which targets ReenExe\CompareDataStruc...Comparator::diffTypes() ) seems to always return null.
This check looks for function or method calls that always return null and whose return value is assigned to a variable. class A
{
function getObject()
{
return null;
}
}
$a = new A();
$object = $a->getObject();
The method The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes. ![]() |
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183 | return $this->processDiff($diff, "[$key]"); |
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184 | } |
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185 | } |
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186 | } |
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187 | |||
188 | return null; |
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189 | } |
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190 | |||
191 | private function assoc(array $assoc, array $data) |
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192 | { |
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193 | foreach ($assoc as $key => $structure) { |
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194 | if (!array_key_exists($key, $data)) { |
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195 | return $this->createDiff($key, StructureDiffInfo::KEY); |
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196 | } |
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197 | |||
198 | if ($diff = $this->compare($data[$key], $structure)) { |
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199 | return $this->processDiff($diff, $key); |
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200 | } |
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201 | } |
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202 | |||
203 | return null; |
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204 | } |
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205 | |||
206 | private function getType($value) |
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207 | { |
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208 | return strtolower(gettype($value)); |
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209 | } |
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210 | |||
211 | private function getStructureType(array $structure) |
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212 | { |
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213 | $types = ['array']; |
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214 | |||
215 | if (isset($structure['type'])) { |
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216 | $types = array_merge( |
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217 | $types, |
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218 | explode('|', $structure['type']) |
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219 | ); |
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220 | } |
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221 | |||
222 | return $types; |
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223 | } |
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224 | |||
225 | private function createDiff($key, $message) |
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226 | { |
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227 | return $this->processDiff(StructureDiffInfo::createDiff($message), $key); |
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228 | } |
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229 | |||
230 | private function processDiff(StructureDiffInfo $diff, $key) |
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231 | { |
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232 | $diff->addPath($key); |
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233 | |||
234 | return $diff; |
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235 | } |
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236 | |||
237 | /** |
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238 | * @return Comparator |
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239 | */ |
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240 | private static function instance() |
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241 | { |
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242 | static $self; |
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243 | |||
244 | return $self ?: $self = new self; |
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245 | } |
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246 | } |
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()
can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.