Contents

# frozen_string_literal: true
module GraphQL
  module StaticValidation
    class FieldsWillMerge
      def validate(context)
        context.each_irep_node do |node|
          if node.ast_nodes.size > 1

            # Check for more than one GraphQL::Field backing this node:
            if node.definitions.size > 1
              defn_names = node.definitions.map { |d| d.name }.sort.join(" or ")
              msg = "Field '#{node.name}' has a field conflict: #{defn_names}?"
              context.errors << GraphQL::StaticValidation::Message.new(msg, nodes: node.ast_nodes.to_a)
            end

            # Check for incompatible / non-identical arguments on this node:
            args = node.ast_nodes.map do |n|
              n.arguments.reduce({}) do |memo, a|
                arg_value = a.value
                memo[a.name] = case arg_value
                when GraphQL::Language::Nodes::VariableIdentifier
                  "$#{arg_value.name}"
                when GraphQL::Language::Nodes::Enum
                  "#{arg_value.name}"
                else
                  GraphQL::Language.serialize(arg_value)
                end
                memo
              end
            end
            args.uniq!

            if args.length > 1
              msg = "Field '#{node.name}' has an argument conflict: #{args.map{ |arg| GraphQL::Language.serialize(arg) }.join(" or ")}?"
              context.errors << GraphQL::StaticValidation::Message.new(msg, nodes: node.ast_nodes.to_a)
            end
          end
        end
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
graphql-1.5.3	lib/graphql/static_validation/rules/fields_will_merge.rb