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asterite/abstract_instance_var.cr

Last active August 29, 2015 14:15
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abstract_instance_var.cr
abstract class Foo
def foo
@foo + 1
end
end
class Bar < Foo
def initialize
@foo = 1
end
end
class Baz < Foo
def initialize
@foo = 1
end
end
a = [Bar.new, Baz.new]
a.each &.foo
Raw
abstract_instance_var.rb
class Foo
def foo
@foo + 1
end
end
class Bar < Foo
def initialize
@foo = 1
end
end
class Baz < Foo
def initialize
@foo = 1
end
end
a = [Bar.new, Baz.new]
a.each &:foo
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