Contents

# frozen_string_literal: true
module GraphQL
  module StaticValidation
    module VariableDefaultValuesAreCorrectlyTyped
      def on_variable_definition(node, parent)
        if !node.default_value.nil?
          value = node.default_value
          if node.type.is_a?(GraphQL::Language::Nodes::NonNullType)
            add_error("Non-null variable $#{node.name} can't have a default value", node)
          else
            type = context.schema.type_from_ast(node.type)
            if type.nil?
              # This is handled by another validator
            else
              begin
                valid = context.valid_literal?(value, type)
              rescue GraphQL::CoercionError => err
                error_message = err.message
              end

              if !valid
                error_message ||= "Default value for $#{node.name} doesn't match type #{type}"
                add_error(error_message, node)
              end
            end 
          end 
        end
        
        super
      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/variable_default_values_are_correctly_typed.rb