Class: Resolv::DNS::Label::Str

Inherits:

Object

• Object
• Resolv::DNS::Label::Str

Defined in:

lib/resolv.rb

Overview

:nodoc:

Instance Attribute Summary

• #downcase ⇒ Object readonly

  Returns the value of attribute downcase.

• #string ⇒ Object readonly

  Returns the value of attribute string.

Instance Method Summary

• #==(other) ⇒ Object
• #eql?(other) ⇒ Boolean
• #hash ⇒ Object
• #initialize(string) ⇒ Str constructor

  A new instance of Str.

• #inspect ⇒ Object
• #to_s ⇒ Object

Constructor Details

#initialize(string) ⇒ Str

Returns a new instance of Str.

# File 'lib/resolv.rb', line 1255

def initialize(string)
  # A label is limited to 63 octets. [RFC 1035 2.3.4] Checking it here
  # makes it an invariant of the object: every label, however it was
  # built, fits in its length octet and cannot wrap it. Callers turn
  # this into the error their own contract promises.
  if string.bytesize > 63
    raise ArgumentError, "DNS label is too long (#{string.bytesize} bytes, max 63): #{string.inspect}"
  end
  @string = string
  # case insensivity of DNS labels doesn't apply non-ASCII characters. [RFC 4343]
  # This assumes @string is given in ASCII compatible encoding.
  @downcase = string.b.downcase
end

Instance Attribute Details

#downcase ⇒ Object (readonly)

Returns the value of attribute downcase.

# File 'lib/resolv.rb', line 1268

def downcase
  @downcase
end

#string ⇒ Object (readonly)

Returns the value of attribute string.

# File 'lib/resolv.rb', line 1268

def string
  @string
end

Instance Method Details

#==(other) ⇒ Object

# File 'lib/resolv.rb', line 1278

def ==(other)
  return self.class == other.class && @downcase == other.downcase
end

#eql?(other) ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/resolv.rb', line 1282

def eql?(other)
  return self == other
end

#hash ⇒ Object

# File 'lib/resolv.rb', line 1286

def hash
  return @downcase.hash
end

#inspect ⇒ Object

# File 'lib/resolv.rb', line 1274

def inspect
  return "#<#{self.class} #{self}>"
end

#to_s ⇒ Object

# File 'lib/resolv.rb', line 1270

def to_s
  return @string
end