Gem::SafeMarshal::Reader#read_symbol

# File tmp/rubies/ruby-3.3.0/lib/rubygems/safe_marshal/reader.rb, line 120
def read_symbol
  len = read_integer
  if len == 1
    byte = read_byte
    if byte == 69 # ?E
      STRING_E_SYMBOL
    else
      Elements::Symbol.new(byte.chr)
    end
  else
    name = -@io.read(len)
    Elements::Symbol.new(name)
  end
end