class IDL::AST::Attribute

def set_raises=(exlist)
  exlist.each do |extype|
    unless extype.is_a?(IDL::Type::ScopedName) &&
              (extype.is_node?(IDL::AST::Exception) || extype.is_node?(IDL::AST::TemplateParam) || extype.resolved_type.is_a?(IDL::Type::Native))
      raise 'Only IDL Exception types allowed in raises declaration.' unless extype.resolved_type.node.is_a?(IDL::AST::Exception)
    end
    @set_raises << extype
  end
end