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# frozen_string_literal: true
module RuboCop
module AST
# A node extension for `const` nodes.
class ConstNode < Node
# @return [Node, nil] the node associated with the scope (e.g. cbase, const, ...)
def namespace
children[0]
end
# @return [Symbol] the demodulized name of the constant: "::Foo::Bar" => :Bar
def short_name
children[1]
end
# @return [Boolean] if the constant is a Module / Class, according to the standard convention.
# Note: some classes might have uppercase in which case this method
# returns false
def module_name?
short_name.match?(/[[:lower:]]/)
end
alias class_name? module_name?
# @return [Boolean] if the constant starts with `::` (aka s(:cbase))
def absolute?
return false unless namespace
each_path.first.cbase_type?
end
# @return [Boolean] if the constant does not start with `::` (aka s(:cbase))
def relative?
!absolute?
end
# Yield nodes for the namespace
#
# For `::Foo::Bar::BAZ` => yields:
# s(:cbase), then
# s(:const, :Foo), then
# s(:const, s(:const, :Foo), :Bar)
def each_path(&block)
return to_enum(__method__) unless block
descendants = []
last = self
loop do
last = last.children.first
break if last.nil?
descendants << last
break unless last.const_type?
end
descendants.reverse_each(&block)
self
end
end
end
end
Version data entries
151 entries across 145 versions & 19 rubygems