Check the contents of deque annotations - #572
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collections.deque had no checker registered, so it fell through to a plain isinstance and the item type was dropped: Deque[int] accepted a deque of strings without complaint. check_sequence would have covered the contents, but it accepts any Sequence, which would let a list through as a Deque. The new checker mirrors check_list and tests for deque itself.
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coverage: 94.862% (+0.03%) from 94.83% — RavSinghChandan:check-deque-contents into agronholm:master |
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collections.dequehas no checker registered, so it falls through to a plainisinstanceand the item type is dropped:check_type(deque(["a"]), Deque[int])
check_sequence would have covered the contents, but it accepts any Sequence, which would let a plain list through as a Deque. The new checker mirrors check_list and tests for deque itself.