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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| 21 | class Runner implements RunnerInterface |
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| 22 | { |
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| 23 | private $tasks; |
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| 24 | |||
| 25 | private $groups = []; |
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| 26 | |||
| 27 | private $order; |
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| 28 | |||
| 29 | public function __construct() |
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| 34 | |||
| 35 | View Code Duplication | public function group($group, callable $tasks = null) |
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| 46 | |||
| 47 | /** |
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| 48 | * Registres a task |
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| 49 | * |
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| 50 | * @param string|TaskInterface $task |
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| 51 | * @param callable $callback |
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| 52 | */ |
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| 53 | View Code Duplication | public function task($task, callable $callback = null) |
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| 64 | |||
| 65 | /** |
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| 66 | * Allows create a task setting a property |
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| 67 | * |
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| 68 | * @param string|TaskInterface $task |
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| 69 | * @param callable $callback |
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| 70 | */ |
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| 71 | public function __set(string $task, callable $callback) |
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| 75 | |||
| 76 | /** |
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| 77 | * Organize tasks and groups order |
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| 78 | * If this method is executed and a task and a group is not in this list, it won't be executed |
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| 79 | * |
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| 80 | * @param string-variadic $tasks |
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| 81 | */ |
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| 82 | public function order(string ...$names) |
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| 96 | |||
| 97 | /** |
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| 98 | * Returns all registred tasks |
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| 99 | * |
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| 100 | * @return TasksCollection |
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| 101 | */ |
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| 102 | public function getTasks() : TasksCollection |
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| 106 | |||
| 107 | public function getGroups() : GroupsCollection |
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| 111 | |||
| 112 | public function getOrder() : array |
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| 116 | |||
| 117 | /** |
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| 118 | * Runs all tasks |
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| 119 | */ |
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| 120 | public function run() |
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| 137 | |||
| 138 | /** |
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| 139 | * Runs one single task |
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| 140 | * |
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| 141 | * @param string|TaskInterface $task |
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| 142 | */ |
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| 143 | public function runTask($task) |
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| 159 | |||
| 160 | /** |
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| 161 | * Runs a group of tasks |
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| 162 | * |
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| 163 | * @param string|GroupInterface $group |
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| 164 | */ |
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| 165 | public function runGroup($group) |
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| 174 | |||
| 175 | View Code Duplication | private function getFromOrderData($name) |
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| 183 | } |
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..