Sha256: 8995442bd9feef9dec304c6ca515cf28ebab37d6ca322808fb8b0b0e4750655c
Contents?: true
Size: 800 Bytes
Versions: 26
Compression:
Stored size: 800 Bytes
Contents
# Creates a method that requires to be overridding.
# If it not overridden and called upon a TypeError
# will be raised.
#
# class C
# abstract :a
# end
#
# c = C.new
# c.a #=> Error: undefined abstraction #a
#
class Module
def abstract( *sym )
sym.each { |s|
define_method( s ) { raise TypeError, "undefined abstraction ##{s}" }
}
end
end
# _____ _
# |_ _|__ ___| |_
# | |/ _ \/ __| __|
# | | __/\__ \ |_
# |_|\___||___/\__|
#
=begin test
require 'test/unit'
class TCModule < Test::Unit::TestCase
class Aq
abstract :q
end
def test_001
ac = Aq.new
assert_raises( TypeError ) { ac.q }
end
def test_002
ac = Class.new { abstract :q }.new
assert_raises( TypeError ) { ac.q }
end
end
=end
Version data entries
26 entries across 26 versions & 1 rubygems