Complex classes like Pass often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Pass, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 30 | class Pass implements PassInterface |
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| 31 | { |
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| 32 | /** |
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| 33 | * Serial number that uniquely identifies the pass. |
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| 34 | * No two passes with the same pass type identifier |
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| 35 | * may have the same serial number. |
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| 36 | * |
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| 37 | * @var string |
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| 38 | */ |
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| 39 | protected $serialNumber; |
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| 40 | |||
| 41 | /** |
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| 42 | * Brief description of the pass, |
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| 43 | * used by the iOS accessibility technologies. |
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| 44 | * |
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| 45 | * @var string |
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| 46 | */ |
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| 47 | protected $description; |
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| 48 | |||
| 49 | /** |
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| 50 | * Version of the file format. |
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| 51 | * The value must be 1. |
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| 52 | * |
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| 53 | * @var int |
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| 54 | */ |
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| 55 | protected $formatVersion = 1; |
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| 56 | |||
| 57 | /** |
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| 58 | * Pass type |
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| 59 | * |
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| 60 | * @var string |
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| 61 | */ |
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| 62 | protected $type; |
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| 63 | |||
| 64 | /** |
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| 65 | * Pass structure |
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| 66 | * |
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| 67 | * @var Structure |
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| 68 | */ |
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| 69 | protected $structure; |
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| 70 | |||
| 71 | /** |
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| 72 | * Pass images |
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| 73 | * |
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| 74 | * @var ImageInterface[] |
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| 75 | */ |
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| 76 | protected $images = array(); |
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| 77 | |||
| 78 | /** |
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| 79 | * Beacons where the pass is relevant. |
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| 80 | * |
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| 81 | * @var array |
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| 82 | */ |
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| 83 | protected $beacons = array(); |
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| 84 | |||
| 85 | /** |
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| 86 | * A list of iTunes Store item identifiers (also known as Adam IDs) for the |
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| 87 | * associated apps. |
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| 88 | * |
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| 89 | * Only one item in the list is used—the first item identifier for an app |
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| 90 | * compatible with the current device. If the app is not installed, the |
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| 91 | * link opens the App Store and shows the app. If the app is already |
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| 92 | * installed, the link launches the app. |
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| 93 | * |
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| 94 | * @var int[] |
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| 95 | */ |
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| 96 | protected $associatedStoreIdentifiers = array(); |
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| 97 | |||
| 98 | /** |
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| 99 | * Locations where the pass is relevant. |
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| 100 | * For example, the location of your store. |
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| 101 | * |
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| 102 | * @var array |
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| 103 | */ |
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| 104 | protected $locations = array(); |
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| 105 | |||
| 106 | /** |
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| 107 | * List of localizations |
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| 108 | * |
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| 109 | * @var LocalizationInterface[] |
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| 110 | */ |
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| 111 | protected $localizations = array(); |
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| 112 | |||
| 113 | /** |
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| 114 | * Date and time when the pass becomes relevant. |
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| 115 | * For example, the start time of a movie. |
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| 116 | * |
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| 117 | * @var DateTime |
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| 118 | */ |
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| 119 | protected $relevantDate; |
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| 120 | |||
| 121 | /** |
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| 122 | * Maximum distance in meters from a relevant latitude and longitude that |
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| 123 | * the pass is relevant. This number is compared to the pass’s default |
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| 124 | * distance and the smaller value is used. |
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| 125 | * Available in iOS 7.0. |
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| 126 | * @var int |
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| 127 | */ |
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| 128 | protected $maxDistance; |
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| 129 | |||
| 130 | /** |
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| 131 | * Barcodes available to be displayed of iOS 9 and later. The system uses |
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| 132 | * the first valid barcode in the array. |
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| 133 | * @var BarcodeInterface[] |
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| 134 | */ |
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| 135 | protected $barcodes = array(); |
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| 136 | |||
| 137 | /** |
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| 138 | * Barcode to be displayed for iOS 8 and earlier. |
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| 139 | * @var BarcodeInterface |
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| 140 | */ |
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| 141 | protected $barcode; |
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| 142 | |||
| 143 | /** |
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| 144 | * Background color of the pass, specified as an CSS-style RGB triple. |
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| 145 | * |
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| 146 | * @var string rgb(23, 187, 82) |
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| 147 | */ |
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| 148 | protected $backgroundColor; |
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| 149 | |||
| 150 | /** |
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| 151 | * Foreground color of the pass, specified as a CSS-style RGB triple. |
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| 152 | * |
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| 153 | * @var string rgb(100, 10, 110) |
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| 154 | */ |
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| 155 | protected $foregroundColor; |
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| 156 | |||
| 157 | /** |
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| 158 | * Identifier used to group related passes. |
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| 159 | * If a grouping identifier is specified, passes with the same style, pass type identifier, |
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| 160 | * and grouping identifier are displayed as a group. Otherwise, passes are grouped automatically. |
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| 161 | * |
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| 162 | * @var string |
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| 163 | */ |
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| 164 | protected $groupingIdentifier; |
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| 165 | |||
| 166 | /** |
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| 167 | * Color of the label text, specified as a CSS-style RGB triple. |
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| 168 | * |
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| 169 | * @var string rgb(255, 255, 255) |
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| 170 | */ |
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| 171 | protected $labelColor; |
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| 172 | |||
| 173 | /** |
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| 174 | * Text displayed next to the logo on the pass. |
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| 175 | * |
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| 176 | * @var string |
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| 177 | */ |
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| 178 | protected $logoText; |
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| 179 | |||
| 180 | /** |
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| 181 | * If true, the strip image is displayed without a shine effect. |
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| 182 | * |
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| 183 | * @var string The default value is false |
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| 184 | */ |
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| 185 | protected $suppressStripShine; |
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| 186 | |||
| 187 | /** |
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| 188 | * The authentication token to use with the web service. |
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| 189 | * The token must be 16 characters or longer. |
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| 190 | * |
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| 191 | * @var string |
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| 192 | */ |
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| 193 | protected $authenticationToken; |
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| 194 | |||
| 195 | /** |
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| 196 | * The URL of a web service that conforms to the API described in Passbook Web Service Reference. |
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| 197 | * http://developer.apple.com/library/ios/documentation/PassKit/Reference/PassKit_WebService/WebService.html#//apple_ref/doc/uid/TP40011988 |
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| 198 | * |
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| 199 | * @var string |
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| 200 | */ |
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| 201 | protected $webServiceURL; |
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| 202 | |||
| 203 | /** |
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| 204 | * Pass type identifier |
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| 205 | * |
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| 206 | * @var string |
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| 207 | */ |
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| 208 | protected $passTypeIdentifier; |
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| 209 | |||
| 210 | /** |
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| 211 | * Team identifier |
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| 212 | * |
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| 213 | * @var string |
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| 214 | */ |
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| 215 | protected $teamIdentifier; |
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| 216 | |||
| 217 | /** |
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| 218 | * Organization name |
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| 219 | * |
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| 220 | * @var string |
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| 221 | */ |
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| 222 | protected $organizationName; |
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| 223 | |||
| 224 | /** |
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| 225 | * Date and time when the pass expires. |
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| 226 | * |
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| 227 | * @var DateTime |
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| 228 | */ |
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| 229 | protected $expirationDate; |
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| 230 | |||
| 231 | /** |
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| 232 | * Indicates that the pass is void—for example, a one time use coupon that has been redeemed. The default value is |
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| 233 | * false. |
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| 234 | * |
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| 235 | * @var boolean |
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| 236 | */ |
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| 237 | protected $voided; |
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| 238 | |||
| 239 | /** |
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| 240 | * |
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| 241 | * A URL to be passed to the associated app when launching it. |
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| 242 | * The app receives this URL in the application:didFinishLaunchingWithOptions: and application:handleOpenURL: |
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| 243 | * methods of its app delegate. If this key is present, the associatedStoreIdentifiers key must also be present. |
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| 244 | * |
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| 245 | * @var string |
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| 246 | */ |
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| 247 | protected $appLaunchURL; |
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| 248 | |||
| 249 | /** |
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| 250 | * Pass userInfo |
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| 251 | * |
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| 252 | * @var mixed |
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| 253 | */ |
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| 254 | protected $userInfo; |
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| 255 | |||
| 256 | public function __construct($serialNumber, $description) |
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| 262 | |||
| 263 | public function toArray() |
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| 333 | |||
| 334 | /** |
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| 335 | * {@inheritdoc} |
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| 336 | */ |
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| 337 | public function setSerialNumber($serialNumber) |
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| 343 | |||
| 344 | /** |
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| 345 | * {@inheritdoc} |
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| 346 | */ |
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| 347 | public function getSerialNumber() |
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| 351 | |||
| 352 | /** |
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| 353 | * {@inheritdoc} |
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| 354 | */ |
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| 355 | public function setDescription($description) |
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| 361 | |||
| 362 | /** |
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| 363 | * {@inheritdoc} |
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| 364 | */ |
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| 365 | public function getDescription() |
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| 369 | |||
| 370 | /** |
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| 371 | * {@inheritdoc} |
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| 372 | */ |
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| 373 | public function getFormatVersion() |
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| 377 | |||
| 378 | /** |
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| 379 | * {@inheritdoc} |
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| 380 | */ |
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| 381 | public function setFormatVersion($formatVersion) |
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| 387 | |||
| 388 | /** |
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| 389 | * {@inheritdoc} |
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| 390 | */ |
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| 391 | public function getType() |
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| 395 | |||
| 396 | /** |
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| 397 | * {@inheritdoc} |
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| 398 | */ |
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| 399 | public function setType($type) |
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| 405 | |||
| 406 | /** |
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| 407 | * {@inheritdoc} |
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| 408 | */ |
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| 409 | public function setStructure(StructureInterface $structure) |
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| 415 | |||
| 416 | /** |
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| 417 | * {@inheritdoc} |
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| 418 | */ |
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| 419 | public function getStructure() |
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| 423 | |||
| 424 | /** |
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| 425 | * {@inheritdoc} |
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| 426 | */ |
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| 427 | public function addImage(ImageInterface $image) |
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| 433 | |||
| 434 | /** |
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| 435 | * {@inheritdoc} |
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| 436 | */ |
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| 437 | public function getImages() |
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| 441 | |||
| 442 | /** |
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| 443 | * {@inheritdoc} |
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| 444 | */ |
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| 445 | public function addLocalization(LocalizationInterface $localization) |
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| 451 | |||
| 452 | /** |
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| 453 | * {@inheritdoc} |
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| 454 | */ |
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| 455 | public function getLocalizations() |
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| 459 | |||
| 460 | /** |
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| 461 | * {@inheritdoc} |
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| 462 | */ |
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| 463 | public function addAssociatedStoreIdentifier($associatedStoreIdentifier) |
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| 469 | |||
| 470 | /** |
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| 471 | * {@inheritdoc} |
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| 472 | */ |
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| 473 | public function getAssociatedStoreIdentifiers() |
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| 477 | |||
| 478 | /** |
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| 479 | * {@inheritdoc} |
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| 480 | */ |
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| 481 | public function addLocation(LocationInterface $location) |
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| 487 | |||
| 488 | /** |
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| 489 | * {@inheritdoc} |
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| 490 | */ |
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| 491 | public function getLocations() |
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| 495 | |||
| 496 | /** |
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| 497 | * {@inheritdoc} |
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| 498 | */ |
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| 499 | public function addBeacon(BeaconInterface $beacon) |
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| 505 | |||
| 506 | /** |
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| 507 | * {@inheritdoc} |
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| 508 | */ |
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| 509 | public function getBeacons() |
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| 513 | |||
| 514 | /** |
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| 515 | * {@inheritdoc} |
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| 516 | */ |
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| 517 | public function setRelevantDate(\DateTime $relevantDate) |
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| 523 | |||
| 524 | /** |
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| 525 | * {@inheritdoc} |
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| 526 | */ |
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| 527 | public function getRelevantDate() |
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| 531 | |||
| 532 | /** |
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| 533 | * {@inheritdoc} |
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| 534 | */ |
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| 535 | public function setMaxDistance($maxDistance) |
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| 541 | |||
| 542 | /** |
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| 543 | * {@inheritdoc} |
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| 544 | */ |
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| 545 | public function getMaxDistance() |
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| 549 | |||
| 550 | /** |
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| 551 | * {@inheritdoc} |
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| 552 | */ |
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| 553 | public function setBarcode(BarcodeInterface $barcode) |
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| 560 | |||
| 561 | /** |
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| 562 | * {@inheritdoc} |
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| 563 | */ |
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| 564 | public function getBarcode() |
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| 568 | |||
| 569 | /** |
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| 570 | * {@inheritdoc} |
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| 571 | */ |
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| 572 | public function addBarcode(BarcodeInterface $barcode) |
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| 582 | |||
| 583 | /** |
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| 584 | * {@inheritdoc} |
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| 585 | */ |
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| 586 | public function getBarcodes() |
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| 590 | |||
| 591 | /** |
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| 592 | * {@inheritdoc} |
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| 593 | */ |
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| 594 | public function setBackgroundColor($backgroundColor) |
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| 600 | |||
| 601 | /** |
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| 602 | * {@inheritdoc} |
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| 603 | */ |
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| 604 | public function getBackgroundColor() |
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| 608 | |||
| 609 | /** |
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| 610 | * {@inheritdoc} |
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| 611 | */ |
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| 612 | public function setForegroundColor($foregroundColor) |
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| 618 | |||
| 619 | /** |
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| 620 | * {@inheritdoc} |
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| 621 | */ |
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| 622 | public function getForegroundColor() |
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| 626 | |||
| 627 | /** |
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| 628 | * {@inheritdoc} |
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| 629 | */ |
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| 630 | public function setGroupingIdentifier($groupingIdentifier) |
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| 636 | |||
| 637 | /** |
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| 638 | * {@inheritdoc} |
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| 639 | */ |
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| 640 | public function getGroupingIdentifier() |
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| 644 | |||
| 645 | /** |
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| 646 | * {@inheritdoc} |
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| 647 | */ |
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| 648 | public function setLabelColor($labelColor) |
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| 654 | |||
| 655 | /** |
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| 656 | * {@inheritdoc} |
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| 657 | */ |
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| 658 | public function getLabelColor() |
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| 662 | |||
| 663 | /** |
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| 664 | * {@inheritdoc} |
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| 665 | */ |
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| 666 | public function setLogoText($logoText) |
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| 672 | |||
| 673 | /** |
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| 674 | * {@inheritdoc} |
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| 675 | */ |
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| 676 | public function getLogoText() |
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| 680 | |||
| 681 | /** |
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| 682 | * {@inheritdoc} |
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| 683 | */ |
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| 684 | public function setSuppressStripShine($suppressStripShine) |
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| 690 | |||
| 691 | /** |
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| 692 | * {@inheritdoc} |
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| 693 | */ |
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| 694 | public function getSuppressStripShine() |
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| 698 | |||
| 699 | /** |
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| 700 | * {@inheritdoc} |
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| 701 | */ |
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| 702 | public function setAuthenticationToken($authenticationToken) |
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| 708 | |||
| 709 | /** |
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| 710 | * {@inheritdoc} |
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| 711 | */ |
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| 712 | public function getAuthenticationToken() |
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| 716 | |||
| 717 | /** |
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| 718 | * {@inheritdoc} |
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| 719 | */ |
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| 720 | public function setWebServiceURL($webServiceURL) |
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| 726 | |||
| 727 | /** |
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| 728 | * {@inheritdoc} |
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| 729 | */ |
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| 730 | public function getWebServiceURL() |
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| 734 | |||
| 735 | /** |
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| 736 | * {@inheritdoc} |
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| 737 | */ |
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| 738 | public function setPassTypeIdentifier($passTypeIdentifier) |
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| 744 | |||
| 745 | /** |
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| 746 | * {@inheritdoc} |
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| 747 | */ |
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| 748 | public function getPassTypeIdentifier() |
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| 752 | |||
| 753 | /** |
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| 754 | * {@inheritdoc} |
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| 755 | */ |
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| 756 | public function setTeamIdentifier($teamIdentifier) |
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| 762 | |||
| 763 | /** |
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| 764 | * {@inheritdoc} |
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| 765 | */ |
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| 766 | public function getTeamIdentifier() |
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| 770 | |||
| 771 | /** |
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| 772 | * {@inheritdoc} |
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| 773 | */ |
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| 774 | public function setOrganizationName($organizationName) |
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| 780 | |||
| 781 | /** |
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| 782 | * {@inheritdoc} |
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| 783 | */ |
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| 784 | public function getOrganizationName() |
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| 788 | |||
| 789 | /** |
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| 790 | * {@inheritdoc} |
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| 791 | */ |
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| 792 | public function setExpirationDate(\DateTime $expirationDate) |
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| 798 | |||
| 799 | /** |
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| 800 | * {@inheritdoc} |
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| 801 | */ |
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| 802 | public function getExpirationDate() |
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| 806 | |||
| 807 | /** |
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| 808 | * {@inheritdoc} |
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| 809 | */ |
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| 810 | public function setVoided($voided) |
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| 816 | |||
| 817 | /** |
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| 818 | * {@inheritdoc} |
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| 819 | */ |
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| 820 | public function getVoided() |
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| 824 | |||
| 825 | /** |
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| 826 | * {@inheritdoc} |
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| 827 | */ |
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| 828 | public function setAppLaunchURL($appLaunchURL) |
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| 834 | |||
| 835 | /** |
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| 836 | * {@inheritdoc} |
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| 837 | */ |
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| 838 | public function getAppLaunchURL() |
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| 842 | |||
| 843 | /** |
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| 844 | * {@inheritdoc} |
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| 845 | */ |
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| 846 | public function setUserInfo($userInfo) { |
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| 851 | |||
| 852 | /** |
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| 853 | * {@inheritdoc} |
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| 854 | */ |
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| 855 | public function getUserInfo() { |
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| 858 | |||
| 859 | } |
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| 860 |
Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a given class or a super-class is assigned to a property that is type hinted more strictly.
Either this assignment is in error or an instanceof check should be added for that assignment.