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[SR-5790] Recursive generic class causing runtime error #48360

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swift-ci opened this issue Aug 29, 2017 · 0 comments
Closed

[SR-5790] Recursive generic class causing runtime error #48360

swift-ci opened this issue Aug 29, 2017 · 0 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior.

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Previous ID SR-5790
Radar None
Original Reporter Joanna Carter (JIRA User)
Type Bug
Status Resolved
Resolution Duplicate
Environment

Xcode 9 beta 6

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

md5: 1ba155b70610fc84a6cc71947c4ef71d

duplicates:

  • SR-263 Implement a general solution to prevent deadlocks when generic types rely on their own metadata recursively

Issue Description:

Declare the following classes :

class Base<rootType : AnyObject> { }

class Test : Base<Test> { }

let test = Test()

All compiles fine but, on instantiation of Test, produces runtime error : "EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)"
@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior.
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@swift-ci