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Size: 1.42 KB
Versions: 11
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Stored size: 1.42 KB
Contents
# frozen_string_literal: true
require 'graphql'
module PlatformosCheck
class GraphqlTraverser
def initialize(graphql_file)
@graphql_file = graphql_file
end
def fields
pickup_fields(@graphql_file.selections, '')
end
private
def pickup_fields(selections, path = '')
selections = expand_fragments(selections)
fields = {}
fields['/'] = map_names_from_selections(selections) if path.empty?
selections.map do |selection|
current_path = File.join(path, name_from_selection(selection))
fields[current_path] = map_names_from_selections(expand_fragments(selection.selections))
child_fields = pickup_fields(selection.selections, current_path)
fields = fields.merge(child_fields)
end
fields
end
def map_names_from_selections(selections)
selections.map { |selection| name_from_selection(selection) }
end
def name_from_selection(selection)
selection.alias || selection.name
end
def expand_fragments(selections)
selections.map do |selection|
if selection.is_a?(GraphQL::Language::Nodes::FragmentSpread)
find_fragment(selection.name).selections
else
selection
end
end.flatten.uniq { |s| name_from_selection(s) }
end
def find_fragment(fragment_name)
@graphql_file.fragments.detect { |definition| definition.name == fragment_name }
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems