<?php /** * base include file for SimpleTest * @package SimpleTest * @subpackage UnitTester * @version $Id$ */ /** * Version specific reflection API. * @package SimpleTest * @subpackage UnitTester */ class SimpleReflection { protected $_interface; /** * Stashes the class/interface. * @param string $interface Class or interface * to inspect. */ function SimpleReflection($interface) { $this->_interface = $interface; } /** * Checks that a class has been declared. Versions * before PHP5.0.2 need a check that it's not really * an interface. * @return boolean True if defined. * @access public */ function classExists() { if (! class_exists($this->_interface)) { return false; } $reflection = new ReflectionClass($this->_interface); return ! $reflection->isInterface(); } /** * Needed to kill the autoload feature in PHP5 * for classes created dynamically. * @return boolean True if defined. * @access public */ function classExistsSansAutoload() { return class_exists($this->_interface, false); } /** * Checks that a class or interface has been * declared. * @return boolean True if defined. * @access public */ function classOrInterfaceExists() { return $this->_classOrInterfaceExistsWithAutoload($this->_interface, true); } /** * Needed to kill the autoload feature in PHP5 * for classes created dynamically. * @return boolean True if defined. * @access public */ function classOrInterfaceExistsSansAutoload() { return $this->_classOrInterfaceExistsWithAutoload($this->_interface, false); } /** * Needed to select the autoload feature in PHP5 * for classes created dynamically. * @param string $interface Class or interface name. * @param boolean $autoload True totriggerautoload. * @return boolean True if interface defined. * @access private */ function _classOrInterfaceExistsWithAutoload($interface, $autoload) { if (function_exists('interface_exists')) { if (interface_exists($this->_interface, $autoload)) { return true; } } return class_exists($this->_interface, $autoload); } /** * Gets the list of methods on a class or * interface. Needs to recursively look at all of * the interfaces included. * @returns array List of method names. * @access public */ function getMethods() { return array_unique(get_class_methods($this->_interface)); } /** * Gets the list of interfaces from a class. If the * class name is actually an interface then just that * interface is returned. * @returns array List of interfaces. * @access public */ function getInterfaces() { $reflection = new ReflectionClass($this->_interface); if ($reflection->isInterface()) { return array($this->_interface); } return $this->_onlyParents($reflection->getInterfaces()); } /** * Gets the list of methods for the implemented * interfaces only. * @returns array List of enforced method signatures. * @access public */ function getInterfaceMethods() { $methods = array(); foreach ($this->getInterfaces() as $interface) { $methods = array_merge($methods, get_class_methods($interface)); } return array_unique($methods); } /** * Checks to see if the method signature has to be tightly * specified. * @param string $method Method name. * @returns boolean True if enforced. * @access private */ function _isInterfaceMethod($method) { return in_array($method, $this->getInterfaceMethods()); } /** * Finds the parent class name. * @returns string Parent class name. * @access public */ function getParent() { $reflection = new ReflectionClass($this->_interface); $parent = $reflection->getParentClass(); if ($parent) { return $parent->getName(); } return false; } /** * Determines if the class is abstract. * @returns boolean True if abstract. * @access public */ function isAbstract() { $reflection = new ReflectionClass($this->_interface); return $reflection->isAbstract(); } /** * Wittles a list of interfaces down to only the top * level parents. * @param array $interfaces Reflection API interfaces * to reduce. * @returns array List of parent interface names. * @access private */ function _onlyParents($interfaces) { $parents = array(); foreach ($interfaces as $interface) { foreach($interfaces as $possible_parent) { if ($interface->getName() == $possible_parent->getName()) { continue; } if ($interface->isSubClassOf($possible_parent)) { break; } } $parents[] = $interface->getName(); } return $parents; } /** * Gets the source code matching the declaration * of a method. * @param string $name Method name. * @return string Method signature up to last * bracket. * @access public */ function getSignature($name) { if ($name == '__get') { return 'function __get($key)'; } if ($name == '__set') { return 'function __set($key, $value)'; } if (! is_callable(array($this->_interface, $name))) { return "function $name()"; } if ($this->_isInterfaceMethod($name)) { return $this->_getFullSignature($name); } return "function $name()"; } /** * For a signature specified in an interface, full * details must be replicated to be a valid implementation. * @param string $name Method name. * @return string Method signature up to last * bracket. * @access private */ function _getFullSignature($name) { $interface = new ReflectionClass($this->_interface); $method = $interface->getMethod($name); $reference = $method->returnsReference() ? '&' : ''; return "function $reference$name(" . implode(', ', $this->_getParameterSignatures($method)) . ")"; } /** * Gets the source code for each parameter. * @param ReflectionMethod $method Method object from * reflection API * @return array List of strings, each * a snippet of code. * @access private */ function _getParameterSignatures($method) { $signatures = array(); foreach ($method->getParameters() as $parameter) { $type = $parameter->getClass(); $signatures[] = (! is_null($type) ? $type->getName() . ' ' : '') . ($parameter->isPassedByReference() ? '&' : '') . '$' . $this->_suppressSpurious($parameter->getName()) . ($this->_isOptional($parameter) ? ' = null' : ''); } return $signatures; } /** * The SPL library has problems with the * Reflection library. In particular, you can * get extra characters in parameter names :(. * @param string $name Parameter name. * @return string Cleaner name. * @access private */ function _suppressSpurious($name) { return str_replace(array('[', ']', ' '), '', $name); } /** * Test of a reflection parameter being optional * that works with early versions of PHP5. * @param reflectionParameter $parameter Is this optional. * @return boolean True if optional. * @access private */ function _isOptional($parameter) { if (method_exists($parameter, 'isOptional')) { return $parameter->isOptional(); } return false; } } ?>