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[SR-10081] Using identity key path is not reliable for core data predicates/expressions #52483

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swift-ci opened this issue Mar 11, 2019 · 2 comments
Open

[SR-10081] Using identity key path is not reliable for core data predicates/expressions #52483

swift-ci opened this issue Mar 11, 2019 · 2 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. standard library Area: Standard library umbrella

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@swift-ci
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Previous ID SR-10081
Radar rdar://problem/48980810
Original Reporter sisoje (JIRA User)
Type Bug
Environment

XCode 10.2 beta 4, Swift 5, iPhone Xr simulator.

Additional Detail from JIRA
Votes 0
Component/s Standard Library
Labels Bug
Assignee None
Priority Medium

md5: f2e8ed7c7d98130934e4b2282b123693

Issue Description:

I made some snippets here:

https://gist.github.com/sisoje/a9226fc4c00613cc62648140480783ef

Crash occurs only when we use identity key path.

Expression using "expressionForEvaluatedObject" always works well.

I expected that identity key path works the same as "expressionForEvaluatedObject" but it isn't the case.
@belkadan
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cc @jckarter. Is this a failure of key paths or CoreData?

@jckarter
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I'm not sure. The identity key path ought to bridge over to the @"self" key path in Cocoa KVC. I'm not sure whether Core Data handles that.

@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. standard library Area: Standard library umbrella
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@jckarter @belkadan @swift-ci