class GraphQL::Query::Variables

# File lib/graphql/query/variables.rb, line 16
def initialize(ctx, ast_variables, provided_variables)
  schema = ctx.schema
  @context = ctx

  @provided_variables = deep_stringify(provided_variables)
  @errors = []
  @storage = ast_variables.each_with_object({}) do |ast_variable, memo|
    if schema.validate_max_errors && schema.validate_max_errors <= @errors.count
      add_max_errors_reached_message
      break memo
    end
    # Find the right value for this variable:
    # - First, use the value provided at runtime
    # - Then, fall back to the default value from the query string
    # If it's still nil, raise an error if it's required.
    variable_type = schema.type_from_ast(ast_variable.type, context: ctx)
    if variable_type.nil? || !variable_type.unwrap.kind.input?
      # Pass -- it will get handled by a validator
    else
      variable_name = ast_variable.name
      default_value = ast_variable.default_value
      provided_value = @provided_variables[variable_name]
      value_was_provided =  @provided_variables.key?(variable_name)
      max_errors = schema.validate_max_errors - @errors.count if schema.validate_max_errors
      begin
        validation_result = if value_was_provided || default_value.nil?
          variable_type.validate_input(provided_value, ctx, max_errors: max_errors)
        else
          GraphQL::Query::InputValidationResult::VALID
        end
        if validation_result.valid?
          if value_was_provided
            # Add the variable if a value was provided
            memo[variable_name] = provided_value
          elsif default_value != nil
            memo[variable_name] = if default_value.is_a?(Language::Nodes::NullValue)
              nil
            else
              default_value
            end
          end
        end
      rescue GraphQL::ExecutionError => ex
        # TODO: This should really include the path to the problematic node in the variable value
        # like InputValidationResults generated by validate_non_null_input but unfortunately we don't
        # have this information available in the coerce_input call chain. Note this path is the path
        # that appears under errors.extensions.problems.path and NOT the result path under errors.path.
        validation_result = GraphQL::Query::InputValidationResult.from_problem(ex.message)
      end

      if !validation_result.valid?
        @errors << GraphQL::Query::VariableValidationError.new(ast_variable, variable_type, provided_value, validation_result)
      end
    end
  end
end