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/vendor/ocramius/proxy-manager/src/ProxyManager/ProxyGenerator/LazyLoadingValueHolder/MethodGenerator/ -> LazyLoadingMethodInterceptor.php (source)

   1  <?php
   2  /*
   3   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   4   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   5   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   6   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   7   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   8   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   9   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  10   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  11   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  12   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  13   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  14   *
  15   * This software consists of voluntary contributions made by many individuals
  16   * and is licensed under the MIT license.
  17   */
  18  
  19  declare(strict_types=1);
  20  
  21  namespace ProxyManager\ProxyGenerator\LazyLoadingValueHolder\MethodGenerator;
  22  
  23  use ProxyManager\Generator\MethodGenerator;
  24  use ProxyManager\Generator\Util\ProxiedMethodReturnExpression;
  25  use Zend\Code\Generator\PropertyGenerator;
  26  use Zend\Code\Reflection\MethodReflection;
  27  
  28  /**
  29   * Method decorator for lazy loading value holder objects
  30   *
  31   * @author Marco Pivetta <ocramius@gmail.com>
  32   * @license MIT
  33   */
  34  class LazyLoadingMethodInterceptor extends MethodGenerator
  35  {
  36      /**
  37       * @param \Zend\Code\Reflection\MethodReflection $originalMethod
  38       * @param \Zend\Code\Generator\PropertyGenerator $initializerProperty
  39       * @param \Zend\Code\Generator\PropertyGenerator $valueHolderProperty
  40       *
  41       * @return self
  42       *
  43       * @throws \Zend\Code\Generator\Exception\InvalidArgumentException
  44       */
  45      public static function generateMethod(
  46          MethodReflection $originalMethod,
  47          PropertyGenerator $initializerProperty,
  48          PropertyGenerator $valueHolderProperty
  49      ) : self {
  50          /* @var $method self */
  51          $method            = static::fromReflection($originalMethod);
  52          $initializerName   = $initializerProperty->getName();
  53          $valueHolderName   = $valueHolderProperty->getName();
  54          $parameters        = $originalMethod->getParameters();
  55          $methodName        = $originalMethod->getName();
  56          $initializerParams = [];
  57          $forwardedParams   = [];
  58  
  59          foreach ($parameters as $parameter) {
  60              $parameterName       = $parameter->getName();
  61              $variadicPrefix      = $parameter->isVariadic() ? '...' : '';
  62              $initializerParams[] = var_export($parameterName, true) . ' => $' . $parameterName;
  63              $forwardedParams[]   = $variadicPrefix . '$' . $parameterName;
  64          }
  65  
  66          $method->setBody(
  67              '$this->' . $initializerName
  68              . ' && $this->' . $initializerName
  69              . '->__invoke($this->' . $valueHolderName . ', $this, ' . var_export($methodName, true)
  70              . ', array(' . implode(', ', $initializerParams) .  '), $this->' . $initializerName . ");\n\n"
  71              . ProxiedMethodReturnExpression::generate(
  72                  '$this->' . $valueHolderName . '->' . $methodName . '(' . implode(', ', $forwardedParams) . ')',
  73                  $originalMethod
  74              )
  75          );
  76          $method->setDocBlock('{@inheritDoc}');
  77  
  78          return $method;
  79      }
  80  }


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