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<?php |
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declare(strict_types=1); |
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/* |
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* Go! AOP framework |
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* |
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* @copyright Copyright 2018, Lisachenko Alexander <[email protected]> |
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* |
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* This source file is subject to the 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 Go\Proxy\Part; |
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use ReflectionFunctionAbstract; |
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use Zend\Code\Generator\AbstractGenerator; |
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/** |
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* Prepares the function call argument list |
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*/ |
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final class FunctionCallArgumentListGenerator extends AbstractGenerator |
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{ |
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/** |
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* List of function arguments |
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* |
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* @var string[] |
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*/ |
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private $arguments; |
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/** |
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* If function contains optional arguments |
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* |
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* @var bool |
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*/ |
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private $hasOptionals = false; |
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/** |
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* Definition of variadic argument or null if function is not variadic |
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* |
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* @var mixed|null |
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*/ |
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private $variadicArgument = null; |
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/** |
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* FunctionCallArgumentList constructor. |
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* |
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* @param ReflectionFunctionAbstract $functionLike Instance of function or method to call |
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*/ |
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public function __construct(ReflectionFunctionAbstract $functionLike) |
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{ |
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parent::__construct(); |
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foreach ($functionLike->getParameters() as $parameter) { |
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$byReference = ($parameter->isPassedByReference() && !$parameter->isVariadic()) ? '&' : ''; |
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$this->hasOptionals = $this->hasOptionals || $parameter->isOptional(); |
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$this->arguments[] = $byReference . '$' . $parameter->name; |
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} |
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if ($functionLike->isVariadic()) { |
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// Variadic argument is last and should be handled separately |
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$this->variadicArgument = array_pop($this->arguments); |
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} |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function generate() |
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{ |
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$argumentsPart = []; |
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if ($this->variadicArgument !== null) { |
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$argumentsPart[] = $this->variadicArgument; |
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} |
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if (!empty($this->arguments)) { |
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$argumentLine = '[' . implode(', ', $this->arguments) . ']'; |
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if ($this->hasOptionals) { |
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$argumentLine = "\\array_slice($argumentLine, 0, \\func_num_args())"; |
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} |
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array_unshift($argumentsPart, $argumentLine); |
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} |
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return implode(', ', $argumentsPart); |
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} |
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} |
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goaop /
framework
