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Issues list

Subclass compiles without initializing properties bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. triage needed This issue needs more specific labels
#69965 opened Nov 17, 2023 by PadraigK
The suggested fix for the existential types with implicit unwrapping is incorrect when enable upcoming featureExistentialAny 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 existentials Feature: values of types like `any Collection`, `Any` and `AnyObject`; type-erased values fix-its Feature: diagnostic fix-its implicitly unwrapped optionals Feature → types: Implicitly unwrapped optional types, aka IUO swift 6.0 type checker Area → compiler: Semantic analysis types Feature: types unexpected behavior Bug: Unexpected behavior or incorrect output
#65026 opened Apr 8, 2023 by treastrain
Having code that casts a generic any RangeExpression<T> will cause app to instantly crash at startup, on iOS 15 devices. accepts invalid Bug: Accepts invalid availability The @available attribute and availability checking in general bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. casting Feature: explicit casting (is, as, as? and as!) compiler The Swift compiler in itself constrained existentials Feature → existentials: constrained existentials such as 'any Collection<Int>' existentials Feature: values of types like `any Collection`, `Any` and `AnyObject`; type-erased values expressions Feature: expressions swift 5.9 type checker Area → compiler: Semantic analysis
#64657 opened Mar 27, 2023 by nifly
@discardableResult works with try and try!, but not try? attributes Feature: Declaration and type attributes bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself @discardableResult Feature → attributes: The @discardableResult attribute error handling expressions Feature: expressions swift 6.0 type checker Area → compiler: Semantic analysis unexpected warning Bug: Unexpected warning
#71870 opened Feb 24, 2024 by AnthonyLatsis
Investigate possible optimization opportunities for autodiff code with control flow AutoDiff compiler The Swift compiler in itself feature A feature request or implementation performance run-time performance SILOptimizer Area → compiler: SIL optimization passes
#68901 opened Oct 2, 2023 by asl
Value pack expansion in array literal array literals Feature → expressions → literals: Array literals bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself expressions Feature: expressions generics Feature: generic declarations and types literals Feature → expressions: Literals such as an integer or string literal pack expansions Feature → expressions: Pack expansion expressions SILGen Area → compiler: The SIL generation stage swift 5.9 type checker Area → compiler: Semantic analysis variadic generics Feature → generics: Variadic generics
#67192 opened Jul 8, 2023 by lhunath
[SR-11885] Allow operator functions to have extra arguments with default values compiler The Swift compiler in itself declarations Feature: declarations feature A feature request or implementation func Feature → declarations: Functions good first issue Good for newcomers improvement operators Feature: operators swift evolution proposal needed Flag → feature: A feature that warrants a Swift evolution proposal
#54301 opened Dec 2, 2019 by CodaFi
[SR-9144] Low-level atomics in Swift feature A feature request or implementation standard library Area: Standard library umbrella swift evolution pending discussion Flag → feature: A feature that has a Swift evolution proposal currently in review
#51640 opened Oct 30, 2018 by swift-ci
Index data is missing references when Swift uses an Objective-C property added through category adding a protocol conformance bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. indexing Area → source tooling: AST indexing objective-c interop Feature: Interoperability with Objective-C source tooling Area: IDE support, SourceKit, and other source tooling swift 5.8 unexpected behavior Bug: Unexpected behavior or incorrect output
#67446 opened Jul 21, 2023 by dylansturg
@propertyWrapper-wrapped nonisolated var‘s projectedValue not accessible without await from non-@MainActor bug A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#59494 opened Jun 16, 2022 by b8591340
2
Issue accessing nested types on sugared types compiler The Swift compiler in itself feature A feature request or implementation nested types Feature: nested types parser Area → compiler: The legacy C++ parser sugared types Feature: sugared types, e.g. 'Int?' or '[Int]'
#59923 opened Jul 6, 2022 by aggie33
Large build time increases when using .init and Self with overloaded functions bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself performance type checker Area → compiler: Semantic analysis
#61079 opened Sep 13, 2022 by wattson12
On QEMU, swift immediate mode crashes due to relative pointer relocation failure bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. crash Bug: A crash, i.e., an abnormal termination of software JIT swift 5.6
#60673 opened Aug 20, 2022 by sonsongithub
Swift doesn’t recognize Clang’s header on Windows bug A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#60534 opened Aug 12, 2022 by stevapple
2
9
nonisolated applied to @propertyWrapper-wrapped property does not propagate to projectedValue in deinit bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. concurrency Feature: umbrella label for concurrency language features property wrappers Feature: property wrappers
#59380 opened Jun 11, 2022 by b8591340
2
1
"Stored value type does not match pointer operand type!" compiler crash assertion failure Bug → crash: An assertion failure bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. CodeGen compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software generics Feature: generic declarations and types name shadowing Feature: name shadowing patterns Feature: patterns swift 5.5
#59572 opened Jun 19, 2022 by LeoNatan
lld 13+ stopped working with the linker flag --gc-sections and Swift on ELF platforms bug A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#60406 opened Aug 5, 2022 by finagolfin
[SR-775] pthread_t represented differently on Darwin and Linux: initializer issue bug A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#43387 opened Feb 19, 2016 by glessard
[SR-6753] CodingUserInfoKey's init?(rawValue:) shouldn't be failable bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. Codable Area → standard library: `Codable` and co. standard library Area: Standard library umbrella
#49302 opened Jan 13, 2018 by hamishknight
[SR-764] swiftc calls default initializers "synthesized initializers" bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. class Feature → type declarations: Class declarations compiler The Swift compiler in itself diagnostics QoI Bug: Diagnostics Quality of Implementation good first issue Good for newcomers properties Feature: properties type checker Area → compiler: Semantic analysis
#43376 opened Feb 18, 2016 by swift-ci
[SR-15940] Assert crash in TypeCheckStmt.cpp assertion failure Bug → crash: An assertion failure attributes Feature: Declaration and type attributes @autoclosure Feature → attributes: the @autoclosure type attribute 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 property wrappers Feature: property wrappers SILGen Area → compiler: The SIL generation stage swift 5.9 type checker Area → compiler: Semantic analysis
#58201 opened Mar 4, 2022 by swift-ci
[SR-12585] Teach update-checkout to fetch Before checkout good first issue Good for newcomers improvement update-checkout Area → utils: the `update-checkout` script utils Area: the build system and other accessory scripts under the "utils" directory
#55030 opened Apr 15, 2020 by CodaFi
[SR-12733] The swizzled in method of a final class resolves static references to its type incorrectly since Xcode 11.4 bug A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#55178 opened May 5, 2020 by abdulowork
ProTip! Updated in the last three days: updated:>2024-05-06.