Sha256: 3e20be373c8e6bf2e59ce63b91055fb89172f735c7e0eda74e8c2e33e4ada267

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Versions: 74

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Contents

# frozen_string_literal: true

module GraphQL
  class Schema
    # Represents a non null type in the schema.
    # Wraps a {Schema::Member} when it is required.
    # @see {Schema::Member::TypeSystemHelpers#to_non_null_type}
    class NonNull < GraphQL::Schema::Wrapper
      include Schema::Member::ValidatesInput

      # @return [GraphQL::TypeKinds::NON_NULL]
      def kind
        GraphQL::TypeKinds::NON_NULL
      end

      # @return [true]
      def non_null?
        true
      end

      # @return [Boolean] True if this type wraps a list type
      def list?
        @of_type.list?
      end

      def to_type_signature
        "#{@of_type.to_type_signature}!"
      end

      def inspect
        "#<#{self.class.name} @of_type=#{@of_type.inspect}>"
      end

      def validate_input(value, ctx, max_errors: nil)
        if value.nil?
          result = GraphQL::Query::InputValidationResult.new
          result.add_problem("Expected value to not be null")
          result
        else
          of_type.validate_input(value, ctx, max_errors: max_errors)
        end
      end

      # This is for introspection, where it's expected the name will be `null`
      def graphql_name
        nil
      end

      def coerce_input(value, ctx)
        # `.validate_input` above is used for variables, but this method is used for arguments
        if value.nil?
          raise GraphQL::ExecutionError, "`null` is not a valid input for `#{to_type_signature}`, please provide a value for this argument."
        end
        of_type.coerce_input(value, ctx)
      end

      def coerce_result(value, ctx)
        of_type.coerce_result(value, ctx)
      end

      # This is for implementing introspection
      def description
        nil
      end
    end
  end
end

Version data entries

74 entries across 74 versions & 1 rubygems

Version Path
graphql-2.4.4 lib/graphql/schema/non_null.rb
graphql-2.4.3 lib/graphql/schema/non_null.rb
graphql-2.4.2 lib/graphql/schema/non_null.rb
graphql-2.4.1 lib/graphql/schema/non_null.rb
graphql-2.4.0 lib/graphql/schema/non_null.rb
graphql-2.3.20 lib/graphql/schema/non_null.rb
graphql-2.3.19 lib/graphql/schema/non_null.rb
graphql-2.3.18 lib/graphql/schema/non_null.rb
graphql-2.3.17 lib/graphql/schema/non_null.rb
graphql-2.3.16 lib/graphql/schema/non_null.rb
graphql-2.3.15 lib/graphql/schema/non_null.rb
graphql-2.3.14 lib/graphql/schema/non_null.rb
graphql-2.3.13 lib/graphql/schema/non_null.rb
graphql-2.3.12 lib/graphql/schema/non_null.rb
graphql-2.3.11 lib/graphql/schema/non_null.rb
graphql-2.3.10 lib/graphql/schema/non_null.rb
graphql-2.2.16 lib/graphql/schema/non_null.rb
graphql-2.1.13 lib/graphql/schema/non_null.rb
graphql-2.3.9 lib/graphql/schema/non_null.rb
graphql-2.3.8 lib/graphql/schema/non_null.rb