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[SR-4824] Add tests to check Collection constraints are being enforced #47401

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airspeedswift opened this issue May 7, 2017 · 2 comments
Open

[SR-4824] Add tests to check Collection constraints are being enforced #47401

airspeedswift opened this issue May 7, 2017 · 2 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. good first issue Good for newcomers standard library Area: Standard library umbrella

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@airspeedswift
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Previous ID SR-4824
Radar rdar://problem/32134714
Original Reporter @airspeedswift
Type Bug
Additional Detail from JIRA
Votes 0
Component/s Standard Library
Labels Bug, StarterBug
Assignee djwbrown (JIRA)
Priority Medium

md5: 6b6aabc9be01be2d9974ed98c3c057f8

Issue Description:

#9379 removed tests confirming collection's associated types conformed to appropriate protocols e.g. MutableCollection.SubSequence: MutableCollection. Now the compiler is enforcing these, so they were just generating warnings.

They should be replaced by tests checking the compiler is enforcing these rules (by trying to create invalid collections and checking the error messages).
@airspeedswift
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Comment by Dylan Brown (JIRA)

I see the changes referenced here #9379 have been reverted and the original tests replaced c03b14e. Is this topic on hold, or is there a more recent PR to reference? Thanks!

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. good first issue Good for newcomers standard library Area: Standard library umbrella
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