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Avoid infinite recursion in type queries - #5434
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msullivan
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Aug 8, 2018
| def __init__(self, strategy: Callable[[Iterable[T]], T]) -> None: | ||
| self.strategy = strategy | ||
| self.seen = [] # type: List[Type] |
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How big do we expect seen to get? If we think it will get pretty big we could make it a set of ids of Typess
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My expectation is that seen should be never larger than few dozens of types. I think we discussed this with @JukkaL when implementing ForwardReferenceResolver that uses the same pattern and decided it is "small" (whatever it means).
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Fixes#5357
Fixes#4780
This might potentially fix similar crashes on recursive types.