notes/json_writer/json.rb
# frozen_string_literal: true
module Stupidedi
using Refinements
module Writer
class Json
def initialize(node)
@node = node
end
# @return [Hash]
def write(out = Hash.new { |k, v| self[k] = v })
build(@node, out)
out
end
private
def resolve_traverser(node)
case
when node.transmission?
Transmission
when node.interchange?
Interchange
when node.segment?
Segment
when node.loop?
Loop
when node.element?
Element
when node.functional_group?
FunctionalGroup
when node.transaction_set?
TransactionSet
when node.table?
Table
else
NullNode
end.new(node)
end
def build(node, out)
traverser = resolve_traverser(node)
traverser.reduce(out) do |children, memo = {}|
build(children, memo)
end
out
end
end
end
end