class RuboCop::Cop::VariableForce::Assignment

This class represents each assignment of a variable.

def initialize(node, variable) 

def initialize(node, variable)
  unless VARIABLE_ASSIGNMENT_TYPES.include?(node.type)
    raise ArgumentError,
          "Node type must be any of #{VARIABLE_ASSIGNMENT_TYPES}, " \
          "passed #{node.type}"
  end
  @node = node
  @variable = variable
  @referenced = false
  @references = []
end

def meta_assignment_node 

def meta_assignment_node
  unless instance_variable_defined?(:@meta_assignment_node)
    @meta_assignment_node =
      operator_assignment_node || multiple_assignment_node
  end
  @meta_assignment_node
end

def multiple_assignment? 

def multiple_assignment?
  return false unless meta_assignment_node
  meta_assignment_node.type == MULTIPLE_ASSIGNMENT_TYPE
end

def multiple_assignment_node 

def multiple_assignment_node
  grandparent_node = node.parent ? node.parent.parent : nil
  return nil unless grandparent_node
  return nil unless grandparent_node.type == MULTIPLE_ASSIGNMENT_TYPE
  return nil unless node.parent.type == MULTIPLE_LEFT_HAND_SIDE_TYPE
  grandparent_node
end

def name 

def name
  @node.children.first
end

def operator 

def operator
  assignment_node = meta_assignment_node || @node
  assignment_node.loc.operator.source
end

def operator_assignment? 

def operator_assignment?
  return false unless meta_assignment_node
  OPERATOR_ASSIGNMENT_TYPES.include?(meta_assignment_node.type)
end

def operator_assignment_node 

def operator_assignment_node
  return nil unless node.parent
  return nil unless OPERATOR_ASSIGNMENT_TYPES.include?(node.parent.type)
  return nil unless node.sibling_index.zero?
  node.parent
end

def reference!(node) 

def reference!(node)
  @references << node
  @referenced = true
end

def regexp_named_capture? 

def regexp_named_capture?
  @node.type == REGEXP_NAMED_CAPTURE_TYPE
end

def scope 

def scope
  @variable.scope
end

def used? 

def used?
  @variable.captured_by_block? || @referenced
end