Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
1 | <?php |
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18 | class FileList implements \Iterator, \Countable |
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19 | { |
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20 | |||
21 | /** |
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22 | * A list of file paths that are included in the list. |
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23 | * |
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24 | * @var array |
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25 | */ |
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26 | private $files = array(); |
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27 | |||
28 | /** |
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29 | * The number of files in the list. |
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30 | * |
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31 | * @var integer |
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32 | */ |
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33 | private $numFiles = 0; |
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34 | |||
35 | /** |
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36 | * The config data for the run. |
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37 | * |
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38 | * @var \PHP_CodeSniffer\Config |
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39 | */ |
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40 | public $config = null; |
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41 | |||
42 | /** |
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43 | * The ruleset used for the run. |
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44 | * |
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45 | * @var \PHP_CodeSniffer\Ruleset |
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46 | */ |
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47 | public $ruleset = null; |
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48 | |||
49 | /** |
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50 | * An array of patterns to use for skipping files. |
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51 | * |
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52 | * @var array |
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53 | */ |
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54 | protected $ignorePatterns = array(); |
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55 | |||
56 | |||
57 | /** |
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58 | * Constructs a file list and loads in an array of file paths to process. |
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59 | * |
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60 | * @param \PHP_CodeSniffer\Config $config The config data for the run. |
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61 | * @param \PHP_CodeSniffer\Ruleset $ruleset The ruleset used for the run. |
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62 | * |
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63 | * @return void |
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64 | */ |
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65 | public function __construct(Config $config, Ruleset $ruleset) |
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79 | |||
80 | |||
81 | /** |
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82 | * Add a file to the list. |
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83 | * |
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84 | * If a file object has already been created, it can be passed here. |
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85 | * If it is left NULL, it will be created when accessed. |
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86 | * |
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87 | * @param string $path The path to the file being added. |
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88 | * @param \PHP_CodeSniffer\Files\File $file The file being added. |
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89 | * |
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90 | * @return void |
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91 | */ |
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92 | public function addFile($path, $file=null) |
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114 | |||
115 | |||
116 | /** |
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117 | * Get the class name of the filter being used for the run. |
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118 | * |
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119 | * @return string |
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120 | */ |
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121 | private function getFilterClass() |
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145 | |||
146 | |||
147 | /** |
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148 | * Rewind the iterator to the first file. |
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149 | * |
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150 | * @return void |
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151 | */ |
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152 | function rewind() |
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157 | |||
158 | |||
159 | /** |
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160 | * Get the file that is currently being processed. |
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161 | * |
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162 | * @return \PHP_CodeSniffer\Files\File |
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163 | */ |
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164 | function current() |
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174 | |||
175 | |||
176 | /** |
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177 | * Return the file path of the current file being processed. |
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178 | * |
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179 | * @return void |
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180 | */ |
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181 | function key() |
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186 | |||
187 | |||
188 | /** |
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189 | * Move forward to the next file. |
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190 | * |
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191 | * @return void |
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192 | */ |
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193 | function next() |
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198 | |||
199 | |||
200 | /** |
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201 | * Checks if current position is valid. |
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202 | * |
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203 | * @return boolean |
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204 | */ |
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205 | function valid() |
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214 | |||
215 | |||
216 | /** |
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217 | * Return the number of files in the list. |
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218 | * |
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219 | * @return integer |
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220 | */ |
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221 | function count() |
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226 | |||
227 | |||
228 | }//end class |
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229 |
Adding a
@return
annotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.