[SR-310] Int fails to convert to protocol adopted values on linux #42932
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Labels
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
runtime
The Swift Runtime
standard library
Area: Standard library umbrella
Comments
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This issue is more than just Int: |
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pushed a work-around to swift-corelibs-foundation/master apple/swift-corelibs-foundation@e35f973 for the copy case where NSCopying and NSMutableCopying protocol adopters were getting called differently on linux than on os x |
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Please try lhoward/swift-corelibs-foundation@0de7943 |
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This seems to definitely be resolved by that fix. verified by reverting 877a052 |
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Configuration changed; linker script changes seems to have resolved the issue |
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Additional Detail from JIRA
md5: 2b0be59f3dc3ff323834379e44b7c7c2
is duplicated by:
Issue Description:
This works on Darwin hosts but not linux:
protocol _NSObjectRepresentable {
func _nsObjectRepresentation() -> NSObject
}
extension Int : _NSObjectRepresentable {
func _nsObjectRepresentation() -> NSObject {
return _bridgeToObject()
}
}
if let obj = value as? _NSObjectRepresentable {
print("darwin gets here")
} else {
print("linux gets here")
}
see commit apple/swift-corelibs-foundation@877a052 to account for the failure case
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