1 | <?php |
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2 | |||
3 | /** |
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4 | * webtrees: online genealogy |
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5 | * Copyright (C) 2023 webtrees development team |
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6 | * This program is free software: you can redistribute it and/or modify |
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7 | * it under the terms of the GNU General Public License as published by |
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8 | * the Free Software Foundation, either version 3 of the License, or |
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9 | * (at your option) any later version. |
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10 | * This program is distributed in the hope that it will be useful, |
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 | * GNU General Public License for more details. |
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14 | * You should have received a copy of the GNU General Public License |
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15 | * along with this program. If not, see <https://www.gnu.org/licenses/>. |
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16 | */ |
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17 | |||
18 | declare(strict_types=1); |
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19 | |||
20 | namespace Fisharebest\Webtrees; |
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21 | |||
22 | use Fisharebest\Webtrees\Contracts\ContainerInterface; |
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23 | use Fisharebest\Webtrees\Exceptions\NotFoundInContainerException; |
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24 | use ReflectionClass; |
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25 | use ReflectionNamedType; |
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26 | use ReflectionParameter; |
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27 | |||
28 | use function array_key_exists; |
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29 | use function array_map; |
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30 | |||
31 | /** |
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32 | * @template T of object |
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33 | * |
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34 | * A PSR-11 compatible container and dependency injector. |
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35 | */ |
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36 | class Container implements ContainerInterface |
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37 | { |
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38 | /** @var array<class-string<T>,T> */ |
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39 | private array $container = []; |
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40 | |||
41 | /** |
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42 | * @param class-string<T> $id |
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43 | * |
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44 | * @return bool |
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45 | */ |
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46 | public function has(string $id): bool |
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47 | { |
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48 | return array_key_exists($id, $this->container); |
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49 | } |
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50 | |||
51 | /** |
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52 | * @param class-string<T> $id |
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53 | * |
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54 | * @return T |
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55 | */ |
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56 | public function get(string $id): object |
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57 | { |
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58 | return $this->container[$id] ??= $this->make($id); |
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59 | } |
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60 | |||
61 | /** |
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62 | * @param class-string<T> $id |
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63 | * @param T $object |
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64 | * |
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65 | * @return $this |
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66 | */ |
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67 | public function set(string $id, object $object): static |
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68 | { |
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69 | $this->container[$id] = $object; |
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70 | |||
71 | return $this; |
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72 | } |
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73 | |||
74 | /** |
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75 | * @param class-string<T> $id |
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76 | * |
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77 | * @return T |
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78 | */ |
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79 | private function make(string $id): object |
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80 | { |
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81 | $reflector = new ReflectionClass($id); |
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82 | $constructor = $reflector->getConstructor(); |
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83 | |||
84 | if ($constructor === null) { |
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85 | return new $id(); |
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86 | } |
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87 | |||
88 | $parameters = array_map(self::makeParameter(...), $constructor->getParameters()); |
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89 | |||
90 | return new $id(...$parameters); |
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91 | } |
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92 | |||
93 | private function makeParameter(ReflectionParameter $reflection_parameter): mixed |
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94 | { |
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95 | if ($reflection_parameter->isOptional()) { |
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96 | return $reflection_parameter->getDefaultValue(); |
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97 | } |
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98 | |||
99 | $type = $reflection_parameter->getType(); |
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100 | |||
101 | if ($type instanceof ReflectionNamedType) { |
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102 | return $this->get($type->getName()); |
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103 | } |
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104 | |||
105 | throw new NotFoundInContainerException('Cannot make ' . $reflection_parameter->getName()); |
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106 | } |
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107 | } |
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108 |
This check looks for private methods that have been defined, but are not used inside the class.