Sha256: 7dce0635ddf055fa795f5833a68404af5d328eb433259e54f23e864c2193e7d2
Contents?: true
Size: 1.68 KB
Versions: 13
Compression:
Stored size: 1.68 KB
Contents
##
# Flags used in DNSSD Ruby API.
class DNSSD::Flags
constants.each do |name|
next unless name =~ /[a-z]/
attr = name.to_s.gsub(/([a-z])([A-Z])/, '\1_\2').downcase
flag = const_get name
define_method "#{attr}=" do |bool|
if bool then
set_flag flag
else
clear_flag flag
end
end
define_method "#{attr}?" do
self & flag == flag
end
end
##
# Bitfield with all valid flags set
ALL_FLAGS = FLAGS.values.inject { |flag, all| flag | all }
##
# Returns a new set of flags
def initialize(*flags)
@flags = flags.inject 0 do |flag, acc| flag | acc end
verify
end
##
# Returns the intersection of flags in +self+ and +flags+.
def &(flags)
self.class.new(to_i & flags.to_i)
end
##
# +self+ is equal if +other+ has the same flags
def ==(other)
to_i == other.to_i
end
##
# Clears +flag+
def clear_flag(flag)
@flags &= ~flag
verify
end
def inspect # :nodoc:
flags = to_a.sort.join ', '
flags[0, 0] = ' ' unless flags.empty?
"#<#{self.class}#{flags}>"
end
##
# Sets +flag+
def set_flag(flag)
@flags |= flag
verify
end
##
# Returns an Array of flag names
def to_a
FLAGS.map do |name, value|
(@flags & value == value) ? name : nil
end.compact
end
##
# Flags as a bitfield
def to_i
@flags
end
##
# Trims the flag list down to valid flags
def verify
@flags &= ALL_FLAGS
self
end
##
# Returns the union of flags in +self+ and +flags+
def |(flags)
self.class.new(to_i | flags.to_i)
end
##
# Returns the complement of the flags in +self+
def ~
self.class.new ~to_i
end
end
Version data entries
13 entries across 13 versions & 2 rubygems