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
Calls the given block for each `when` node in the `case` statement. If no block is given, an `Enumerator` is returned.
@return [self] if a block is given @return [Enumerator] if no block is given
# File lib/rubocop/ast/node/case_node.rb, line 23 def each_when return when_branches.to_enum(__method__) unless block_given? when_branches.each do |condition| yield condition end self end
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 51 def else? loc.else end
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 44 def else_branch node_parts[-1] end
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
Custom destructuring method. This can be used to normalize destructuring for different variations of the node.
@return [Array<Node>] the different parts of the `case` statement
# File lib/rubocop/ast/node/case_node.rb, line 59 def node_parts to_a end
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 36 def when_branches node_parts[1...-1] end