1 | <?php |
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19 | trait HasTypeIndication |
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20 | { |
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21 | /** |
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22 | * @var string |
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23 | */ |
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24 | protected $definition; |
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25 | |||
26 | /** |
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27 | * @var int |
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28 | */ |
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29 | protected $modifiers = 0b0000; |
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30 | |||
31 | /** |
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32 | * @return TypeDefinition |
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33 | */ |
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34 | public function getDefinition(): TypeDefinition |
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35 | { |
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36 | \assert(\is_string($this->definition)); |
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37 | |||
38 | return $this->fetch($this->definition); |
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39 | } |
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40 | |||
41 | /** |
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42 | * @return bool |
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43 | */ |
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44 | public function isList(): bool |
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49 | |||
50 | /** |
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51 | * @return bool |
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52 | */ |
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53 | public function isNonNull(): bool |
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58 | |||
59 | /** |
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60 | * @return bool |
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61 | */ |
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62 | public function isListOfNonNulls(): bool |
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67 | |||
68 | /** |
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69 | * @param int $value |
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70 | * @return ProvidesTypeIndication |
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71 | */ |
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72 | public function withModifiers(int $value): ProvidesTypeIndication |
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78 | |||
79 | /** |
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80 | * @param string $name |
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81 | * @return ProvidesTypeIndication |
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82 | */ |
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83 | public function withTypeDefinition(string $name): ProvidesTypeIndication |
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89 | } |
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90 |
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idable
provides a methodequalsId
that in turn relies on the methodgetId()
. If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()
as an abstract method to the trait will make sure it is available.