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<?php |
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namespace Benoth\StaticReflection\Reflection; |
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class ReflectionParameter extends Reflection |
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{ |
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protected $declaringFunction; |
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protected $type; |
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protected $byRef; |
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protected $required = true; |
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protected $variadic = false; |
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protected $defaultType = 'null'; |
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protected $defaultValue = null; |
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protected $constantName = null; |
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/** |
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* Gets the declaring function or method. |
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* |
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* @return ReflectionFunction |
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*/ |
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public function getDeclaringFunction() |
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{ |
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return $this->declaringFunction; |
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} |
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/** |
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* Gets the declaring class for a method. |
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* |
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* @return ReflectionClass|ReflectionTrait|ReflectionInterface|null Always null for a function |
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*/ |
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public function getDeclaringClass() |
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{ |
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if ($this->declaringFunction instanceof ReflectionFunction) { |
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return; |
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} |
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return $this->declaringFunction->getDeclaringClass(); |
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} |
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public function getFileName() |
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{ |
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return $this->declaringFunction->getFileName(); |
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} |
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/** |
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* Checks if the parameter is passed in by reference. |
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* |
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* @return bool |
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*/ |
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public function isByRef() |
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{ |
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return $this->byRef; |
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} |
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/** |
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* Checks if the parameter is passed in by reference. |
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* |
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* @return bool |
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*/ |
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public function isPassedByReference() |
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{ |
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return $this->isByRef(); |
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} |
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/** |
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* Checks if the parameter can be passed by value. |
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* |
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* @return bool |
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*/ |
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public function canBePassedByValue() |
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{ |
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return !$this->isByRef(); |
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} |
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/** |
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* Checks if the parameter is required. |
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* |
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* @return bool |
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*/ |
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public function isRequired() |
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{ |
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return $this->required; |
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} |
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/** |
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* Checks if the parameter is declared as a variadic parameter. |
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* |
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* @return bool |
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*/ |
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public function isVariadic() |
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{ |
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return $this->variadic; |
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} |
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/** |
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* Checks if the parameter is optional. |
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* |
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* @return bool |
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*/ |
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public function isOptional() |
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{ |
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return !$this->required; |
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} |
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/** |
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* Gets the associated type of a parameter. |
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* |
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* @return ReflectionType ReflectionType if a parameter type is specified, null otherwise. |
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*/ |
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public function getType() |
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{ |
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// @todo Handle ReflectionType ? |
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return $this->type; |
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} |
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/** |
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* Gets the class type hinted for the parameter as a ReflectionClass object. |
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* |
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* @return ReflectionClass|null |
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*/ |
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public function getClass() |
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{ |
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if ($this->declaringFunction instanceof ReflectionFunction) { |
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$source = $this->getDeclaringFunction(); |
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} else { |
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$source = $this->getDeclaringClass(); |
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} |
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return $source->getIndex()->getClass($this->getType()); |
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} |
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/** |
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* Checks if the parameter has a type associated with it. |
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* |
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* @return bool |
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*/ |
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public function hasType() |
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{ |
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// @todo Handle ReflectionType ? |
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return $this->getType() !== null; |
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} |
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/** |
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* Checks if the parameter expects an array. |
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* |
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* @return bool |
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*/ |
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public function isArray() |
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{ |
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// @todo Handle ReflectionType ? |
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return $this->getType() == 'array'; |
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} |
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/** |
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* Checks if the parameter expects a callable. |
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* |
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* @return bool |
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*/ |
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public function isCallable() |
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{ |
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// @todo Handle ReflectionType ? |
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return $this->getType() == 'callable'; |
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} |
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/** |
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* Checks whether the parameter allows NULL. |
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* |
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* @return bool |
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*/ |
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public function allowsNull() |
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{ |
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if ($this->getType() === null) { |
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return true; |
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} |
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if ($this->isOptional()) { |
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return true; |
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} |
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return $this->defaultValue === null; |
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} |
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/** |
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* Checks if a default value for the parameter is available. |
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* |
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* @return bool |
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*/ |
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public function isDefaultValueAvailable() |
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{ |
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return !$this->isRequired(); |
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} |
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public function getDefault() |
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{ |
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return [$this->defaultType, $this->defaultValue]; |
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} |
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public function getDefaultType() |
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{ |
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return $this->defaultType; |
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} |
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/** |
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* Gets default parameter value. |
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* |
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* @throws \ReflectionException If the parameter is required |
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* |
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* @return mixed |
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*/ |
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public function getDefaultValue() |
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{ |
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if ($this->isRequired()) { |
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throw new \ReflectionException('Parameter '.$this->getName().' is required and does not have a default value'); |
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} |
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return $this->defaultValue; |
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} |
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/** |
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* Returns the default value's constant name if default value is constant or null. |
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* |
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* @return string|null |
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*/ |
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public function getDefaultValueConstantName() |
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{ |
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return $this->constantName; |
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} |
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/** |
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* Returns whether the default value of this parameter is a named constant. |
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* |
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* @return bool |
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*/ |
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public function isDefaultValueConstant() |
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{ |
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return !is_null($this->constantName); |
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} |
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/** |
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* Gets the position of the parameter. |
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* |
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* The position of the parameter, left to right, starting at position #0. |
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* |
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* @return int |
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*/ |
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public function getPosition() |
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{ |
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foreach ($this->getDeclaringFunction()->getParameters() as $position => $parameter) { |
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if ($this === $parameter) { |
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return $position; |
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} |
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} |
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} |
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public function setDeclaringFunction(ReflectionFunctionAbstract $declaringFunction) |
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{ |
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$this->declaringFunction = $declaringFunction; |
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return $this; |
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} |
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public function setType($type) |
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{ |
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$this->type = $type; |
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return $this; |
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} |
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public function setByRef($byRef) |
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{ |
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$this->byRef = (bool) $byRef; |
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return $this; |
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} |
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public function setRequired($required) |
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{ |
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$this->required = (bool) $required; |
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return $this; |
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} |
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public function setVariadic($variadic) |
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{ |
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$this->variadic = (bool) $variadic; |
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return $this; |
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} |
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public function setDefault($type, $value) |
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{ |
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$this->defaultType = $type; |
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$this->defaultValue = $value; |
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return $this; |
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} |
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public function setDefaultValueConstantName($constantName) |
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{ |
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$this->constantName = $constantName; |
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return $this; |
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} |
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} |
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