| commit | author | age | ||
| 15e03a | 1 | <?php |
| F | 2 | declare(strict_types= 1); |
| 3 | namespace Framework; | |
| 4 | use ReflectionClass; | |
| 5 | use Closure; | |
| 6 | use ReflectionNamedType; | |
| 7 | use InvalidArgumentException; | |
| 8 | ||
| 9 | class Container { | |
| 10 | ||
| 11 | private array $registry = []; | |
| 12 | ||
| 13 | public function set(string $name, Closure $value): void { | |
| 14 | $this->registry[$name] = $value; | |
| 15 | } | |
| 16 | public function get(string $class_name): object { | |
| 17 | if(array_key_exists($class_name, $this->registry)) { | |
| 18 | return $this->registry[$class_name](); | |
| 19 | } | |
| 20 | $reflector = new ReflectionClass($class_name); | |
| 21 | $contructor = $reflector->getConstructor(); | |
| 22 | ||
| 23 | $dependencies = []; | |
| 24 | ||
| 25 | if($contructor === null) { | |
| 26 | return new $class_name(); | |
| 27 | } | |
| 28 | ||
| 29 | foreach($contructor->getParameters() as $param) { | |
| 30 | $type = $param->getType(); | |
| 31 | ||
| 32 | if($type === null) { | |
| 33 | throw new InvalidArgumentException("Constructor parameter '{$param->getName()}' in the $class_name class has no type declaration"); | |
| 34 | } | |
| 35 | ||
| 36 | if( ! ($type instanceof ReflectionNamedType)) { | |
| 37 | throw new InvalidArgumentException("Constructor parameter '{$param->getName()}' in the $class_name class is an invalid type: $type | |
| 38 | - only single named type supported"); | |
| 39 | } | |
| 40 | ||
| 41 | if($type->isBuiltin()) { | |
| 42 | throw new InvalidArgumentException("Unable to resolve costructor parameter '{$param->getName()}' of type '$type' in the '$class_name' class"); | |
| 43 | } | |
| 44 | $dependencies[] = $this->get((string) $type); | |
| 45 | } | |
| 46 | ||
| 47 | return new $class_name(...$dependencies); | |
| 48 | } | |
| 49 | } | |
