question: f0 - > `` hstore '' f1 - > temp f2 - > integerliteral f3 - > temp concode_field_sep PlaceHolder placeHolder concode_field_sep placeholderType placeHolder
target: R function ( HStoreStmt arg0 ) { R loc0 = null ; arg0 . f0 . accept ( this ) ; arg0 . f1 . accept ( this ) ; arg0 . f2 . accept ( this ) ; arg0 . f3 . accept ( this ) ; return loc0 ; }