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# frozen_string_literal: true
module RuboCop
module AST
# A node extension for `until` nodes. This will be used in place of a plain
# node when the builder constructs the AST, making its methods available
# to all `until` nodes within RuboCop.
class UntilNode < Node
include ConditionalNode
include ModifierNode
# Returns the keyword of the `until` statement as a string.
#
# @return [String] the keyword of the `until` statement
def keyword
'until'
end
# Returns the inverse keyword of the `until` node as a string.
# Returns `while` for `until` nodes and vice versa.
#
# @return [String] the inverse keyword of the `until` statement
def inverse_keyword
'while'
end
# Checks whether the `until` node has a `do` keyword.
#
# @return [Boolean] whether the `until` node has a `do` keyword
def do?
loc.begin&.is?('do')
end
end
end
end
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