Sha256: 838b79807322e5a5fcc643ad4235b7c0f0f523004322ffb0e86cd1420af607b0
Contents?: true
Size: 779 Bytes
Versions: 6
Compression:
Stored size: 779 Bytes
Contents
class Module
# Create an tester attribute. This creates a single method
# used to test the attribute for truth.
#
# attr_tester :a
#
# is equivalent to
#
# def a?
# @a ? true : @a
# end
#
def attr_tester(*args)
code, made = '', []
args.each do |a|
code << %{
def #{a}?(truth=nil)
@#{a} ? truth || @#{a} : @#{a}
end
}
made << "#{a}?".to_sym
end
module_eval code
made
end
alias_method :attr_reader?, :attr_tester
# Create aliases for flag reader.
#
# CREDIT: Trans
def alias_tester(*args)
orig = args.last
args = args - [orig]
args.each do |name|
alias_method("#{name}?", "#{orig}?")
end
end
alias_method :alias_reader?, :alias_tester
end
Version data entries
6 entries across 6 versions & 1 rubygems