class RuboCop::AST::CaseNode

A node extension for ‘case` nodes. This will be used in place of a plain node when the builder constructs the AST, making its methods available to all `case` nodes within RuboCop.

Public Instance Methods

branches() click to toggle source

Returns an array of all the when branches in the ‘case` statement.

@return [Array<Node, nil>] an array of the bodies of the when branches and the else (if any). Note that these bodies could be nil.

# File lib/rubocop/ast/node/case_node.rb, line 38
def branches
  bodies = when_branches.map(&:body)
  bodies.push(else_branch) if else?
  bodies
end

each_when(&block) click to toggle source

@deprecated Use ‘when_branches.each`

# File lib/rubocop/ast/node/case_node.rb, line 19
def each_when(&block)
  return when_branches.to_enum(__method__) unless block

  when_branches.each(&block)

  self
end

else?() click to toggle source

Checks whether this case statement has an ‘else` branch.

@return [Boolean] whether the ‘case` statement has an `else` branch

# File lib/rubocop/ast/node/case_node.rb, line 55
def else?
  loc.else
end

else_branch() click to toggle source

Returns the else branch of the ‘case` statement, if any.

@return [Node] the else branch node of the ‘case` statement @return [nil] if the case statement does not have an else branch.

# File lib/rubocop/ast/node/case_node.rb, line 48
def else_branch
  node_parts[-1]
end

keyword() click to toggle source

Returns the keyword of the ‘case` statement as a string.

@return [String] the keyword of the ‘case` statement

# File lib/rubocop/ast/node/case_node.rb, line 14
def keyword
  'case'
end

when_branches() click to toggle source

Returns an array of all the when branches in the ‘case` statement.

@return [Array<WhenNode>] an array of ‘when` nodes

# File lib/rubocop/ast/node/case_node.rb, line 30
def when_branches
  node_parts[1...-1]
end