class RuboCop::Cop::Lint::UselessSetterCall::MethodVariableTracker

def process_binary_operator_assignment(op_asgn_node)
  lhs_node, = *op_asgn_node
  return unless ASSIGNMENT_TYPES.include?(lhs_node.type)
  lhs_variable_name, = *lhs_node
  @local[lhs_variable_name] = true
  throw :skip_children
end