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<?php |
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/* |
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* This file is part of the overtrue/cuttle. |
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* |
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* (c) overtrue <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Overtrue\Cuttle; |
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use ReflectionClass; |
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/** |
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* Class ClassResolver. |
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* |
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* @author overtrue <[email protected]> |
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*/ |
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class ClassResolver |
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{ |
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/** |
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* @var string |
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*/ |
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protected $class; |
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/** |
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* ClassResolver constructor. |
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* |
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* @param string $class |
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*/ |
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public function __construct(string $class) |
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{ |
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$this->class = $class; |
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} |
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/** |
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* @param array $args |
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* |
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* @return object |
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*/ |
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public function resolve(array $args = []) |
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{ |
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$reflected = new ReflectionClass($this->class); |
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if ($reflected->getConstructor()->getNumberOfParameters() == 0) { |
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return $reflected->newInstanceWithoutConstructor(); |
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} |
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$args = $this->resolveConstructorArgs($reflected, $args); |
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return $reflected->newInstanceArgs($args); |
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} |
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/** |
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* @param \ReflectionClass $reflected |
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* @param array $inputArgs |
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* |
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* @return array |
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*/ |
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protected function resolveConstructorArgs(ReflectionClass $reflected, array $inputArgs) |
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{ |
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$args = []; |
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foreach ($reflected->getConstructor()->getParameters() as $parameter) { |
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$name = $parameter->getName(); |
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$value = $this->tryToGetArgsFromInput($inputArgs, $name); |
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if (is_null($value)) { |
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if (!$parameter->isOptional()) { |
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throw new InvalidArgumentException(sprintf( |
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'No value configured for parameter "%s" of %s::__constructor method.', |
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$name, |
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$reflected->getName() |
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)); |
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} |
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$value = $parameter->getDefaultValue(); |
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} |
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$args[$name] = $value; |
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} |
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return $args; |
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} |
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/** |
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* @param array $input |
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* @param string $name |
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* |
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* @return mixed |
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*/ |
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public function tryToGetArgsFromInput(array $input, string $name) |
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{ |
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return $input[camel_case($name)] ?? $input[snake_case($name)] ?? null; |
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} |
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} |
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