void function ( ) { }
notifies the visitor of an expression entering a focus . concode_field_sep PlaceHolder placeHolder concode_field_sep boolean declared concode_elem_sep void exitFocus concode_elem_sep boolean staticVar concode_elem_sep boolean inlineFunc concode_elem_sep boolean lock concode_elem_sep boolean staticFuncCall concode_elem_sep boolean used concode_elem_sep boolean funcItem concode_elem_sep boolean dynFuncCall