Sha256: 09af23a83e414c44f0a6fa6ed89046c99a1da02e54401daeaf5e2472e8c8929a
Contents?: true
Size: 909 Bytes
Versions: 8
Compression:
Stored size: 909 Bytes
Contents
class Class
# Automatically create an initializer assigning the given
# arguments.
#
# class MyClass
# initializer(:a, "b", :c)
# end
#
# _is equivalent to_
#
# class MyClass
# def initialize(a, b, c)
# @a,@b,@c = a,b,c
# end
# end
#
# Downside: Initializers defined like this can't take blocks.
# This can be fixed when Ruby 1.9 is out.
#
# The initializer will not raise an Exception when the user
# does not supply a value for each instance variable. In that
# case it will just set the instance variable to nil. You can
# assign default values or raise an Exception in the block.
def initializer(*attributes, &block)
define_method(:initialize) do |*args|
attributes.zip(args) do |sym, value|
instance_variable_set("@#{sym}", value)
end
instance_eval(&block) if block
end
attributes
end
end
Version data entries
8 entries across 8 versions & 1 rubygems