question: visit a match pattern . concode_field_sep PlaceHolder placeHolder concode_field_sep boolean visitLocationPath concode_elem_sep boolean visitVariableRef concode_elem_sep boolean visitBinaryOperation concode_elem_sep boolean visitUnionPath concode_elem_sep boolean visitUnaryOperation concode_elem_sep boolean visitFunction concode_elem_sep boolean visitUnionPattern concode_elem_sep boolean visitStringLiteral concode_elem_sep boolean visitNumberLiteral concode_elem_sep boolean visitStep concode_elem_sep boolean visitPredicate
target: boolean function ( ExpressionOwner arg0 , StepPattern arg1 ) { return true ; }