1 | <?php |
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2 | |||
3 | declare(strict_types=1); |
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4 | |||
5 | namespace Ray\Di; |
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6 | |||
7 | use Exception; |
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8 | use LogicException; |
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9 | use Ray\Di\Exception\Unbound; |
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10 | use ReflectionMethod; |
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11 | |||
12 | use function call_user_func_array; |
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13 | use function is_callable; |
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14 | |||
15 | final class SetterMethod implements AcceptInterface |
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16 | { |
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17 | /** @var string */ |
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18 | private $method; |
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19 | |||
20 | /** @var Arguments */ |
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21 | private $arguments; |
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22 | |||
23 | /** |
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24 | * Is optional binding ? |
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25 | * |
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26 | * @var bool |
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27 | */ |
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28 | private $isOptional = false; |
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29 | |||
30 | public function __construct(ReflectionMethod $method, Name $name) |
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31 | { |
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32 | $this->method = $method->name; |
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33 | $this->arguments = new Arguments($method, $name); |
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34 | } |
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35 | |||
36 | /** |
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37 | * @param object $instance |
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38 | * |
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39 | * @throws Unbound |
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40 | * @throws Exception |
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41 | */ |
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42 | public function __invoke($instance, Container $container): void |
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43 | { |
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44 | try { |
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45 | $parameters = $this->arguments->inject($container); |
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46 | } catch (Unbound $e) { |
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47 | if ($this->isOptional) { |
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48 | return; |
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49 | } |
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50 | |||
51 | throw $e; |
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52 | } |
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53 | |||
54 | $callable = [$instance, $this->method]; |
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55 | if (! is_callable($callable)) { |
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56 | throw new LogicException(); // @codeCoverageIgnore |
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57 | } |
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58 | |||
59 | call_user_func_array($callable, $parameters); |
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60 | } |
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61 | |||
62 | public function setOptional(): void |
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63 | { |
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64 | $this->isOptional = true; |
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65 | } |
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66 | |||
67 | /** @inheritDoc */ |
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68 | public function accept(VisitorInterface $visitor) |
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69 | { |
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70 | $visitor->visitSetterMethod($this->method, $this->arguments); |
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71 | } |
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72 | } |
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73 |
Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: