Should this error exist for abstract classes?

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1 
abstract class A
  def initialize; end
  getter abc : String
end

class B < A
  def initialize
    @abc = "B"
    super()
  end
end

@abc can never be nil because of the abstract class, right? However:

There was a problem expanding macro ‘getter’

Code in test.cr:3:2

3 | getter abc : String
^
Called macro defined in macro ‘macro_4536162272’

117 | macro getter(*names, &block)

Which expanded to:

2 |
3 |
4 | @abc : String
^—
Error: instance variable ‘@abc’ of A was not initialized directly in all of the ‘initialize’ methods, rendering it nilable. Indirect initialization is not supported.

Or is there something I’ve missed?

Crystal v1.5.0

Regards,
iain

2

That’s intentional. You must initial it in the abstract class. An easy way to do that is to pass it in the initialize method.

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