✨ Enumerable: added last, clear, inspect, findAll, reject, equal

src/Enumerable.php

@@ -12,6 +12,8 @@
 
 namespace chillerlan\Traits;
 
+use Closure;
+
 /**
  * @link http://api.prototypejs.org/language/Enumerable/
  */
@@ -81,10 +83,109 @@ public function __map($callback):array {
 	 * @return $this
 	 */
 	public function __reverse(){
-		$this->array = array_reverse($this->array);
+		$this->array  = array_reverse($this->array);
 		$this->offset = 0;
 
 		return $this;
 	}
 
+	/**
+	 * @return mixed
+	 */
+	public function __last(){
+		return $this->array[count($this->array) - 1];
+	}
+
+	/**
+	 * @return $this
+	 */
+	public function __clear(){
+		$this->array = [];
+
+		return $this;
+	}
+
+	/**
+	 * @link http://api.prototypejs.org/language/Array/prototype/inspect/
+	 *
+	 * @return string
+	 */
+	public function __inspect():string {
+		return print_r($this->array, true);
+	}
+
+	/**
+	 * @link http://api.prototypejs.org/language/Enumerable/prototype/findAll/
+	 *
+	 * @param \Closure $callback
+	 *
+	 * @return array
+	 * @throws \chillerlan\Traits\TraitException
+	 */
+	public function __findAll(Closure $callback):array{
+
+		if(!is_callable($callback)){
+			throw new TraitException('invalid callback');
+		}
+
+		$return = [];
+
+		foreach($this->array as $index => $element){
+
+			if(call_user_func_array($callback, [$element, $index]) === true){
+				$return[] = $element;
+			}
+
+		}
+
+		return $return;
+	}
+
+	/**
+	 * @link http://api.prototypejs.org/language/Enumerable/prototype/reject/
+	 *
+	 * @param \Closure $callback
+	 *
+	 * @return array
+	 * @throws \chillerlan\Traits\TraitException
+	 */
+	public function __reject(Closure $callback):array{
+
+		if(!is_callable($callback)){
+			throw new TraitException('invalid callback');
+		}
+
+		$return = [];
+
+		foreach($this->array as $index => $element){
+
+			if(call_user_func_array($callback, [$element, $index]) !== true){
+				$return[] = $element;
+			}
+
+		}
+
+		return $return;
+	}
+
+	/**
+	 * @param array $y
+	 *
+	 * @return bool
+	 */
+	public function __equal(array $y):bool{
+
+		if(count($this->array) !== count($y)){
+			return false;
+		}
+
+		$diff = 0;
+
+		foreach($this->array as $kx => $vx){
+			$diff |= $vx ^ $y[$kx];
+		}
+
+		return ((($diff - 1) >> 31) & 1) === 1;
+	}
+
 }