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[SR-913] Extension Nested Type Linking Bug #43525

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an0 mannequin opened this issue Mar 10, 2016 · 2 comments
Closed

[SR-913] Extension Nested Type Linking Bug #43525

an0 mannequin opened this issue Mar 10, 2016 · 2 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler itself

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@an0
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Mannequin

an0 mannequin commented Mar 10, 2016

Previous ID SR-913
Radar None
Original Reporter @an0
Type Bug
Status Resolved
Resolution Done

Attachment: Download

Additional Detail from JIRA
Votes 2
Component/s Compiler
Labels Bug
Assignee None
Priority Medium

md5: b3107e1d63d2c9aa219da2fa13be7964

Issue Description:

Linking error for public extension's nested type from framework:

Undefined symbols for architecture armv7:
"type metadata for (extension in Framework):__ObjC.UIView.Foo", referenced from:
App.ViewController.viewDidLoad () -> () in ViewController.o
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Compile the sample app to see the details.
@swift-ci
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swift-ci commented Jul 6, 2016

Comment by Brett Park (JIRA)

I can confirm this issue. It appears when creating a type such as an enum or struct within an extension to an objective-c library. It requires optimization to be turned on.

Some similar confirmations:
SwiftGen/SwiftGen#57
https://twitter.com/aligatr/status/669970159529025536
https://forums.developer.apple.com/thread/45236

@an0
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an0 mannequin commented Jul 8, 2016

Just verified it is fixed in Swift 3 and Xcode 8.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
This issue was closed.
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler itself
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