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Contents

# frozen_string_literal: true
module GraphQL
  module StaticValidation
    module ArgumentNamesAreUnique
      include GraphQL::StaticValidation::Message::MessageHelper

      def on_field(node, parent)
        validate_arguments(node)
        super
      end

      def on_directive(node, parent)
        validate_arguments(node)
        super
      end

      def validate_arguments(node)
        argument_defns = node.arguments
        if argument_defns.any?
          args_by_name = Hash.new { |h, k| h[k] = [] }
          argument_defns.each { |a| args_by_name[a.name] << a }
          args_by_name.each do |name, defns|
            if defns.size > 1
              add_error("There can be only one argument named \"#{name}\"", defns)
            end
          end
        end
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version Path
graphql-1.9.0.pre1 lib/graphql/static_validation/rules/argument_names_are_unique.rb