class RBS::RecursiveAliasDefinitionError

def initialize(type:, defs:)
  @type = type
  @defs = defs
  super "#{Location.to_string location}: Recursive aliases in #{type}: #{defs.map(&:name).join(", ")}"
end

def location
  first_def = defs.first or raise
  original = first_def.original or raise
  original.location
end