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[SR-14516] Swift generates subscript.read accessors that allocate!
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
regression
SILOptimizer
Area → compiler: SIL optimization passes
swift 5.4
#56868
opened Apr 21, 2021 by
weissi
updated May 6, 2024
[SR-4937] DispatchQueue.sync much slower than dispatch_queue_sync due to unnecessary allocations
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
performance
runtime
The Swift Runtime
#47514
opened May 19, 2017 by
weissi
updated Feb 21, 2024
Error bridged to NSError's A deviation from expected or documented behavior. Also: expected but undesirable behavior.
localizedDescription
doesn't use the CustomStringConvertible
bug
#58724
opened May 6, 2022 by
weissi
updated Aug 25, 2023
[SR-7764] TSan doesn't work on the swift.org toolchains for macOS
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
TSan
For issues in the Thread Sanitizer itself
#50303
opened May 24, 2018 by
weissi
updated May 16, 2023
[SR-14253] 5.4 crasher when compiling NIO: TypeCheckAvailability.cpp:2939 Assertion `!Where.isImplicit()' failed
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
crash
Bug: A crash, i.e., an abnormal termination of software
type checker
Area → compiler: Semantic analysis
#56613
opened Feb 18, 2021 by
weissi
updated Apr 17, 2023
[SR-12601] Address Sanitizer's leak output not symbolicated
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#55046
opened Apr 15, 2020 by
weissi
updated Mar 12, 2023
[SR-16037] Ability to warn if a certain protocol requirement is fulfilled by a default implementation
compiler
The Swift compiler in itself
conformances
Feature → protocol: protocol conformances
feature
A feature request or implementation
new feature
#58298
opened Mar 22, 2022 by
weissi
updated Jan 16, 2023
Allow discoverable, simple disambiguation between module & type of the same name (e.g. A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
type checker
Area → compiler: Semantic analysis
TypeResolver
Foo.Foo
)
bug
#62639
opened Dec 16, 2022 by
weissi
updated Dec 17, 2022
[SR-14102] Idiomatic way of checking if an Array<UInt8> starts with a bunch of bytes is slow
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
performance
#56488
opened Jan 25, 2021 by
weissi
updated Dec 13, 2022
[SR-7586] creating a public typealias (to an internal type) inside of an internal extension is now an error
access control
Feature → modifiers: Access control and access levels
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
regression
source compatibility
swift 4.2
#50128
opened May 2, 2018 by
weissi
updated Nov 19, 2022
[SR-5315] no cheap way to create something where no ARC is happening
compiler
The Swift compiler in itself
feature
A feature request or implementation
swift evolution proposal needed
Flag → feature: A feature that warrants a Swift evolution proposal
#47890
opened Jun 26, 2017 by
weissi
updated Nov 11, 2022
[SR-10653] exhaustive capture lists
compiler
The Swift compiler in itself
feature
A feature request or implementation
swift evolution proposal needed
Flag → feature: A feature that warrants a Swift evolution proposal
#53053
opened May 10, 2019 by
weissi
updated Nov 11, 2022
[SR-15786] Swift should emit warning when trying to cast an Array/Dictionary from an existential
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
diagnostics QoI
Bug: Diagnostics Quality of Implementation
type checker
Area → compiler: Semantic analysis
#58063
opened Jan 29, 2022 by
weissi
updated Nov 3, 2022
[SR-14519] is __owned not properly working anymore?
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
SILOptimizer
Area → compiler: SIL optimization passes
#56871
opened Apr 23, 2021 by
weissi
updated Nov 3, 2022
[SR-12666] Remove the open/frozen enum language dialect
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#55110
opened Apr 24, 2020 by
weissi
updated Aug 24, 2022
REPL broken on main
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
regression
REPL
#58859
opened May 12, 2022 by
weissi
updated Jun 22, 2022
[SR-15733] on non-ABI-stable platforms (like Linux), Swift should check the version of libswiftCore etc
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#58010
opened Jan 14, 2022 by
weissi
updated Apr 25, 2022
[SR-15542] {{switch self.array[thing]}} +1s the array for the duration of the switch, leading to CoW copies
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#57845
opened Dec 1, 2021 by
weissi
updated Apr 25, 2022
[SR-14590] 5.5 snapshots not compiling SwiftNIO tests on Linux
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#56942
opened May 4, 2021 by
weissi
updated Apr 25, 2022
[SR-14558] TSan segv in code that looks fine
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#56910
opened Apr 30, 2021 by
weissi
updated Apr 25, 2022
[SR-14474] Swift on Linux/Windows/... (Intel): should clarify which micro-architecture it targets
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#56830
opened Apr 12, 2021 by
weissi
updated Apr 25, 2022
[SR-14458] Swift doesn't ever specialise witness or vtables
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#56814
opened Apr 8, 2021 by
weissi
updated Apr 25, 2022
[SR-14269] nightly main spits out lots of incorrect warnings for NIO (warning: stored property '...' of 'ConcurrentValue'-conforming struct '...' has non-concurrent-value type)
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#56629
opened Feb 24, 2021 by
weissi
updated Apr 25, 2022
[SR-14099] lldb doesn't work on nightly docker images
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#56485
opened Jan 25, 2021 by
weissi
updated Apr 25, 2022
[SR-13041] (#file) to silence the #file to #filePath warning only works on call site not on declaration
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#55487
opened Jun 18, 2020 by
weissi
updated Apr 25, 2022
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