<?php
namespace eMacros\Runtime\Property;
use eMacros\Applicable;
use eMacros\Scope;
use eMacros\GenericList;
class PropertyExists implements Applicable {
/**
* Key/property to find
* @var mixed
*/
public $property;
public function __construct($property = null) {
$this->property = $property;
}
/**
* Checks if the given key/property is available in a array/object
* Usage: (#? 5 _array) (#? "name" _obj) (#name? _obj)
* Returns: boolean
* (non-PHPdoc)
* @see \eMacros\Applicable::apply()
*/
public function apply(Scope $scope, GenericList $arguments) {
//get index and value
if (is_null($this->property)) {
if (count($arguments) == 0) {
throw new \BadFunctionCallException("PropertyExists: No parameters found.");
}
$key = $arguments[0]->evaluate($scope);
if (count($arguments) == 1) {
if (!array_key_exists(0, $scope->arguments)) {
throw new \BadFunctionCallException("PropertyExists: Expected value of type array/object as second parameter but none found.");
}
$value = $scope->arguments[0];
}
else {
$value = $arguments[1]->evaluate($scope);
}
}
else {
$key = $this->property;
if (count($arguments) == 0) {
if (!array_key_exists(0, $scope->arguments)) {
throw new \BadFunctionCallException("PropertyExists: Expected value of type array/object as first parameter but none found.");
}
$value = $scope->arguments[0];
}
else {
$value = $arguments[0]->evaluate($scope);
}
}
//get index/property
if (is_array($value)) {
return array_key_exists($key, $value);
}
elseif ($value instanceof \ArrayObject || $value instanceof \ArrayAccess) {
return $value->offsetExists($key);
}
elseif (is_object($value)) {
//check property existence
if (!property_exists($value, $key)) {
//check existence through __isset
if (method_exists($value, '__isset')) {
return $value->__isset($key);
}
return false;
}
return true;
}
throw new \InvalidArgumentException(sprintf("PropertyExists: Expected value of type array/object but %s found instead", gettype($value)));
}
}
?>
|
Download
