boolean function ( ) { return true ; }
returns true if this function should ensure that all parameters have been set . this is the most common use case . the value false can be used for built-in functions that have optional parameters without a default value . concode_field_sep String[] functionNames concode_elem_sep FormalArgumentList arguments concode_field_sep SassListItem compute concode_elem_sep FormalArgumentList createArgumentList concode_elem_sep FormalArgumentList createArgumentList concode_elem_sep FormalArgumentList createArgumentList concode_elem_sep SassListItem getParam concode_elem_sep SassListItem getParam concode_elem_sep String[] getFunctionNames concode_elem_sep FormalArgumentList getArguments concode_elem_sep SassListItem computeForArgumentList