class ArrowFunctionExpression

class ArrowFunctionExpression extends Function_ implements Expression {
    
    /**
     * Map of node properties
     * 
     * @var array 
     */
    protected $propertiesMap = array(
        "expression" => false,
    );
    
    /**
     * This flag is true when function body is wrapped in curly braces
     * 
     * @var bool
     */
    protected $expression = false;
    
    /**
     * Sets the function body
     * 
     * @param BlockStatement|Expression $body Function body
     * 
     * @return $this
     */
    public function setBody($body) {
        $this->assertType($body, array(
            "BlockStatement",
            "Expression",
        ));
        $this->body = $body;
        return $this;
    }
    
    /**
     * Returns the expression flag
     * 
     * @return bool
     */
    public function getExpression() {
        return $this->expression;
    }
    
    /**
     * Sets the expression flag
     * 
     * @param bool $expression Expression flag
     * 
     * @return $this
     */
    public function setExpression($expression) {
        $this->expression = (bool) $expression;
        return $this;
    }

}