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   1  # Generator strategies
   2  
   3  ProxyManager allows you to generate classes based on generator strategies and a
   4  given `Zend\Code\Generator\ClassGenerator` as of
   5  the [interface of a generator strategy](https://github.com/Ocramius/ProxyManager/blob/master/src/ProxyManager/GeneratorStrategy/GeneratorStrategyInterface.php).
   6  
   7  Currently, 3 generator strategies are shipped with ProxyManager:
   8  
   9   * [`ProxyManager\GeneratorStrategy\BaseGeneratorStrategy`](https://github.com/Ocramius/ProxyManager/blob/master/src/ProxyManager/GeneratorStrategy/BaseGeneratorStrategy.php),
  10     which simply retrieves the string representation of the class from `ClassGenerator`
  11   * [`ProxyManager\GeneratorStrategy\EvaluatingGeneratorStrategy`](https://github.com/Ocramius/ProxyManager/blob/master/src/ProxyManager/GeneratorStrategy/EvaluatingGeneratorStrategy.php),
  12     which calls `eval()` upon the generated class code before returning it. This is useful in cases
  13     where you want to generate multiple classes at runtime
  14   * [`ProxyManager\GeneratorStrategy\FileWriterGeneratorStrategy`](https://github.com/Ocramius/ProxyManager/blob/master/src/ProxyManager/GeneratorStrategy/FileWriterGeneratorStrategy.php),
  15     which accepts a [`ProxyManager\FileLocator\FileLocatorInterface`](https://github.com/Ocramius/ProxyManager/blob/master/src/ProxyManager/FileLocator/FileLocatorInterface.php)
  16     instance as constructor parameter, and based on it, writes the generated class to a file before returning its code.