Method: GraphQL::Schema::Member::HasArguments#coerce_arguments

Defined in:
lib/graphql/schema/member/has_arguments.rb

#coerce_arguments(parent_object, values, context) {|Interpreter::Arguments, Execution::Lazy<Interpreter::Arguments>| ... } ⇒ Interpreter::Arguments, Execution::Lazy<Interpreter::Arguments>

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

If given a block, it will eventually yield the loaded args to the block.

If no block is given, it will immediately dataload (but might return a Lazy).

Parameters:

Yields:

Returns:



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# File 'lib/graphql/schema/member/has_arguments.rb', line 259

def coerce_arguments(parent_object, values, context, &block)
  # Cache this hash to avoid re-merging it
  arg_defns = context.types.arguments(self)
  total_args_count = arg_defns.size

  finished_args = nil
  prepare_finished_args = -> {
    if total_args_count == 0
      finished_args = GraphQL::Execution::Interpreter::Arguments::EMPTY
      if block_given?
        block.call(finished_args)
      end
    else
      argument_values = {}
      resolved_args_count = 0
      raised_error = false
      arg_defns.each do |arg_defn|
        context.dataloader.append_job do
          begin
            arg_defn.coerce_into_values(parent_object, values, context, argument_values)
          rescue GraphQL::ExecutionError, GraphQL::UnauthorizedError => err
            raised_error = true
            finished_args = err
            if block_given?
              block.call(finished_args)
            end
          end

          resolved_args_count += 1
          if resolved_args_count == total_args_count && !raised_error
            finished_args = context.schema.after_any_lazies(argument_values.values) {
              GraphQL::Execution::Interpreter::Arguments.new(
                argument_values: argument_values,
              )
            }
            if block_given?
              block.call(finished_args)
            end
          end
        end
      end
    end
  }

  if block_given?
    prepare_finished_args.call
    nil
  else
    # This API returns eagerly, gotta run it now
    context.dataloader.run_isolated(&prepare_finished_args)
    finished_args
  end
end