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Trailing comma not allowed in @available annotation despite SE-0439

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

compilerThe Swift compiler itselfThe Swift compiler itself

parserArea → compiler: The legacy C++ parserArea → compiler: The legacy C++ parser

swift 6.2

unexpected errorBug: Unexpected errorBug: Unexpected error

Status: Open.

#81475 In swiftlang/swift;

· calda opened on May 13, 2025

<code>BitwiseCopyable</code> attribute on C struct leads to compiler crash

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

c interopFeature: Interoperability with CFeature: Interoperability with C

compilerThe Swift compiler itselfThe Swift compiler itself

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

IRGenLLVM IR generationLLVM IR generation

swift 6.0

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

#78368 In swiftlang/swift;

· amomchilov opened on Dec 27, 2024

@_silgen_name is not any more exposing any function

@_silgen_nameFeature → attributes: The @_silgen_name attributeFeature → attributes: The @_silgen_name attribute

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

compilerThe Swift compiler itselfThe Swift compiler itself

regression

swift 6.0

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#76850 In swiftlang/swift;

· AhmadMhmoud opened on Oct 3, 2024

It’s possible to write arbitrary text after specifying the @MainActor for a closure.

accepts invalidBug: Accepts invalidBug: Accepts invalid

actor isolationFeature → concurrency: Actor isolationFeature → concurrency: Actor isolation

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

compilerThe Swift compiler itselfThe Swift compiler itself

concurrencyFeature: umbrella label for concurrency language featuresFeature: umbrella label for concurrency language features

swift 6.1

type checkerArea → compiler: Semantic analysisArea → compiler: Semantic analysis

Status: Open.

#76540 In swiftlang/swift;

· omochi opened on Sep 18, 2024

Invalid type parameter in getReducedType()

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

AutoDiff

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

compilerThe Swift compiler itselfThe Swift compiler itself

conditional conformancesFeature → protocol → conformances: conditional conformancesFeature → protocol → conformances: conditional conformances

conformancesFeature → protocol: protocol conformancesFeature → protocol: protocol conformances

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

genericsFeature: generic declarations and typesFeature: generic declarations and types

SILGenArea → compiler: The SIL generation stageArea → compiler: The SIL generation stage

swift 6.0

Status: Open.

#75711 In swiftlang/swift;

· JaapWijnen opened on Aug 6, 2024

SourceKit document structure/key.substructure includes duplicate Swift attributes

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

availabilityThe @available attribute and availability checking in generalThe @available attribute and availability checking in general

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

source toolingArea: IDE support, SourceKit, and other source toolingArea: IDE support, SourceKit, and other source tooling

SourceKitArea → source tooling: SourceKitArea → source tooling: SourceKit

swift 6.0

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#75472 In swiftlang/swift;

· J-MR-T opened on Jul 25, 2024

Unable to type-check inline closure expressions with <code>@MainActor</code> and/or <code>@Sendable</code>

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

compilerThe Swift compiler itselfThe Swift compiler itself

concurrencyFeature: umbrella label for concurrency language featuresFeature: umbrella label for concurrency language features

expressionsFeature: expressionsFeature: expressions

function typesFeature → types: function typesFeature → types: function types

SendableArea → standard library: The Sendable protocolArea → standard library: The Sendable protocol

swift 6.0

ternary operatorFeature → operators: The ternary operatorFeature → operators: The ternary operator

type checkerArea → compiler: Semantic analysisArea → compiler: Semantic analysis

typesFeature: typesFeature: types

unexpected errorBug: Unexpected errorBug: Unexpected error

Status: Open.

#73199 In swiftlang/swift;

· NachoSoto opened on Apr 23, 2024

Show a closure’s type and actor isolation when performing cursor info on the braces or <code>in</code> keyword

actor isolationFeature → concurrency: Actor isolationFeature → concurrency: Actor isolation

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

closuresFeature: closuresFeature: closures

concurrencyFeature: umbrella label for concurrency language featuresFeature: umbrella label for concurrency language features

cursor infoArea → source tooling: cursor infoArea → source tooling: cursor info

featureA feature request or implementationA feature request or implementation

source toolingArea: IDE support, SourceKit, and other source toolingArea: IDE support, SourceKit, and other source tooling

SourceKitArea → source tooling: SourceKitArea → source tooling: SourceKit

typesFeature: typesFeature: types

Status: Open.

#73095 In swiftlang/swift;

· ahoppen opened on Apr 17, 2024

<code>@discardableResult</code> doesn't work with computed property getter

@discardableResultFeature → attributes: The @discardableResult attributeFeature → attributes: The @discardableResult attribute

accessorsFeature → declarations: Variable (property) accessorsFeature → declarations: Variable (property) accessors

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

compilerThe Swift compiler itselfThe Swift compiler itself

declarationsFeature: declarationsFeature: declarations

swift 6.0

type checkerArea → compiler: Semantic analysisArea → compiler: Semantic analysis

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#72752 In swiftlang/swift;

· li3zhen1 opened on Apr 1, 2024

<code>@discardableResult</code> works with <code>try</code> and <code>try!</code>, but not <code>try?</code>

@discardableResultFeature → attributes: The @discardableResult attributeFeature → attributes: The @discardableResult attribute

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

compilerThe Swift compiler itselfThe Swift compiler itself

error handling

expressionsFeature: expressionsFeature: expressions

swift 6.0

type checkerArea → compiler: Semantic analysisArea → compiler: Semantic analysis

unexpected warningBug: Unexpected warningBug: Unexpected warning

Status: Open.

#71870 In swiftlang/swift;

· AnthonyLatsis opened on Feb 24, 2024

<code>@usableFromInline internal</code> type doesn't get <code>Sendable</code> conformance synthesised

@usableFromInlineFeature → attributes: The @usableFromInline attributeFeature → attributes: The @usableFromInline attribute

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

compilerThe Swift compiler itselfThe Swift compiler itself

concurrencyFeature: umbrella label for concurrency language featuresFeature: umbrella label for concurrency language features

conformancesFeature → protocol: protocol conformancesFeature → protocol: protocol conformances

derived conformancesFeature → protocol → conformances: derived conformances aka synthesized conformancesFeature → protocol → conformances: derived conformances aka synthesized conformances

SendableArea → standard library: The Sendable protocolArea → standard library: The Sendable protocol

swift 6.0

type checkerArea → compiler: Semantic analysisArea → compiler: Semantic analysis

unexpected warningBug: Unexpected warningBug: Unexpected warning

Status: Open.

#70019 In swiftlang/swift;

· dnadoba opened on Nov 24, 2023

Constraint solver assertion failure with key paths and dynamic member subscript

@dynamicMemberLookupFeature → attributes: the @dynamicMemberLookup attributeFeature → attributes: the @dynamicMemberLookup attribute

assertion failureBug → crash: An assertion failureBug → crash: An assertion failure

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

compilerThe Swift compiler itselfThe Swift compiler itself

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

key pathsFeature: key paths (both native and Objective-C)Feature: key paths (both native and Objective-C)

swift 5.9

type checkerArea → compiler: Semantic analysisArea → compiler: Semantic analysis

WindowsPlatform: WindowsPlatform: Windows

Status: Open.

#69386 In swiftlang/swift;

· stephencelis opened on Oct 24, 2023