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Invalid nested extension hits AvailabilityScope verifier failure with <code>-library-level api</code>

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.

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

found by fuzzerFlag: An issue found by fuzzing the compilerFlag: An issue found by fuzzing the compiler

Status: Open.

#81834 In swiftlang/swift;

· hamishknight opened on May 29, 2025

Sendable loophole with <code>where Self: Sendable</code> extension

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.

Status: Open.

#78028 In swiftlang/swift;

· sliemeobn opened on Dec 6, 2024

Conformance synthesis fails to check availability

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.

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

Status: Open.

#77589 In swiftlang/swift;

· stephencelis opened on Nov 13, 2024

Synthesized conformances ignore availability &amp; deprecation

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.

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

Status: Open.

#76898 In swiftlang/swift;

· KeithBauerANZ opened on Oct 7, 2024

Android API level needs to be visible in Swift

#ifFeature → compiler control statements: Conditional compilation blocksFeature → compiler control statements: Conditional compilation blocks

AndroidPlatform: AndroidPlatform: Android

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

compiler control statementsFeature: compiler control statementsFeature: compiler control statements

featureA feature request or implementationA feature request or implementation

Status: Open.

Feature

#76671 In swiftlang/swift;

· grynspan opened on Sep 24, 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

Valid property access fails to compile when property has a nonmutating setter and chains into a subscript

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.

Status: Open.

#74203 In swiftlang/swift;

· stephencelis opened on Jun 7, 2024

Windows version number support for the @available attribute

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

compilerThe Swift compiler itselfThe Swift compiler itself

featureA feature request or implementationA feature request or implementation

FrontendArea → compiler: FrontendArea → compiler: Frontend

WindowsPlatform: WindowsPlatform: Windows

Status: Open.

#73655 In swiftlang/swift;

· tristanlabelle opened on May 15, 2024

Key path formed to setter with unavailable key path is writable

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.

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

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

Status: Open.

#72809 In swiftlang/swift;

· stephencelis opened on Apr 3, 2024

<code>if</code> expression with opaque types and availability.

#availableFeature → statements: Availability conditionFeature → statements: Availability condition

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.

compilerThe Swift compiler itselfThe Swift compiler itself

expressionsFeature: expressionsFeature: expressions

if elseFeature → statements: 'if' statementsFeature → statements: 'if' statements

opaque result typesFeature → types → opaque types: opaque result typesFeature → types → opaque types: opaque result types

opaque typesFeature → types: opaque typesFeature → types: opaque types

swift 6.2

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

Status: Open.

#69812 In swiftlang/swift;

· zienag opened on Nov 13, 2023

Improvement suggestion: Auto-fix to add '@usableFromInline' or 'public' to '@inlinable' function.

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

featureA feature request or implementationA feature request or implementation

Status: Open.

#68805 In swiftlang/swift;

· CrazyFanFan opened on Sep 27, 2023

@available annotation not preventing missing symbol crash on macOS 10.15

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.

Status: Open.

#68010 In swiftlang/swift;

· jaredh159 opened on Aug 18, 2023