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<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2015 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy\Command\ListCommand;
use Symfony\Component\Console\Input\InputInterface;
/**
* Property Enumerator class.
*/
class PropertyEnumerator extends Enumerator
{
/**
* {@inheritdoc}
*/
protected function listItems(InputInterface $input, \Reflector $reflector = null, $target = null)
{
// only list properties when a Reflector is present.
if ($reflector === null) {
return;
}
// We can only list properties on actual class (or object) reflectors.
if (!$reflector instanceof \ReflectionClass) {
return;
}
// only list properties if we are specifically asked
if (!$input->getOption('properties')) {
return;
}
$showAll = $input->getOption('all');
$properties = $this->prepareProperties($this->getProperties($showAll, $reflector), $target);
if (empty($properties)) {
return;
}
$ret = array();
$ret[$this->getKindLabel($reflector)] = $properties;
return $ret;
}
/**
* Get defined properties for the given class or object Reflector.
*
* @param bool $showAll Include private and protected properties.
* @param \Reflector $reflector
*
* @return array
*/
protected function getProperties($showAll, \Reflector $reflector)
{
$properties = array();
foreach ($reflector->getProperties() as $property) {
if ($showAll || $property->isPublic()) {
$properties[$property->getName()] = $property;
}
}
// TODO: this should be natcasesort
ksort($properties);
return $properties;
}
/**
* Prepare formatted property array.
*
* @param array $properties
*
* @return array
*/
protected function prepareProperties(array $properties, $target = null)
{
// My kingdom for a generator.
$ret = array();
foreach ($properties as $name => $property) {
if ($this->showItem($name)) {
$fname = '$' . $name;
$ret[$fname] = array(
'name' => $fname,
'style' => $this->getVisibilityStyle($property),
'value' => $this->presentValue($property, $target),
);
}
}
return $ret;
}
/**
* Get a label for the particular kind of "class" represented.
*
* @param \ReflectionClass $reflector
*
* @return string
*/
protected function getKindLabel(\ReflectionClass $reflector)
{
if ($reflector->isInterface()) {
return 'Interface Properties';
} elseif (method_exists($reflector, 'isTrait') && $reflector->isTrait()) {
return 'Trait Properties';
} else {
return 'Class Properties';
}
}
/**
* Get output style for the given property's visibility.
*
* @param \ReflectionProperty $property
*
* @return string
*/
private function getVisibilityStyle(\ReflectionProperty $property)
{
if ($property->isPublic()) {
return self::IS_PUBLIC;
} elseif ($property->isProtected()) {
return self::IS_PROTECTED;
} else {
return self::IS_PRIVATE;
}
}
/**
* Present the $target's current value for a reflection property.
*
* @param \ReflectionProperty $property
* @param mixed $target
*
* @return string
*/
protected function presentValue(\ReflectionProperty $property, $target)
{
if (!is_object($target)) {
// TODO: figure out if there's a way to return defaults when target
// is a class/interface/trait rather than an object.
return '';
}
$property->setAccessible(true);
$value = $property->getValue($target);
return $this->presentRef($value);
}
}