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# frozen_string_literal: true
module RuboCop
module AST
# A node extension for `forward-args` nodes. This will be used in place
# of a plain node when the builder constructs the AST, making its methods
# available to all `forward-args` nodes within RuboCop.
#
# Not used with modern emitters:
#
# $ ruby-parse -e "def foo(...); end"
# (def :foo
# (args
# (forward-arg)) nil)
# $ ruby-parse --legacy -e "->(foo) { bar }"
# (def :foo
# (forward-args) nil)
#
# Note the extra 's' with legacy form.
#
# The main RuboCop runs in legacy mode; this node is only used
# if user `AST::Builder.modernize` or `AST::Builder.emit_lambda=true`
class ForwardArgsNode < Node
include CollectionNode
# Node wraps itself in an array to be compatible with other
# enumerable argument types.
def to_a
[self]
end
end
end
end
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