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Contents
module SoberSwag
module Nodes
##
# Base class for nodes that contain arrays of other nodes.
# This is very different from an attribute representing a node which *is* an array of some element type!!
class Array < Base
def initialize(elements)
@elements = elements
end
attr_reader :elements
##
# @see SoberSwag::Nodes::Array#map
#
def map(&block)
self.class.new(elements.map { |elem| elem.map(&block) })
end
##
# @see SoberSwag::Nodes::Array#cata
#
# The block will be called with each element contained in this array node in turn, then called with a {SoberSwag::Nodes::Array} constructed
# from the resulting values.
#
# @return whatever the block yields.
def cata(&block)
block.call(self.class.new(elements.map { |elem| elem.cata(&block) }))
end
##
# Deconstructs into the elements.
#
# @return [Array<SoberSwag::Nodes::Base>]
def deconstruct
@elements
end
##
# Deconstruction for pattern-matching
#
# @return [Hash{Symbol => ::Array<SoberSwag::Nodes::Base>}]
# a hash with the elements in the `:elements` key.
def deconstruct_keys(_keys)
{ elements: @elements }
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems