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Swift 6.2: undesired "Capture of non-sendable type 'T.Type'" warnings

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

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

expressionsFeature: expressionsFeature: expressions

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

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

Status: Open.

#82116 In swiftlang/swift;

· groue opened on Jun 9, 2025

Swift 6 fails to cast inferred function types as return types from implicit @Sendable on return statement

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

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

implicit conversionsFeature: implicit conversionsFeature: implicit conversions

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

swift 6.2

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

typesFeature: typesFeature: types

unexpected errorBug: Unexpected errorBug: Unexpected error

Status: Open.

#78769 In swiftlang/swift;

· schifano opened on Jan 21, 2025

Implicit cast from <code>@Sendable</code> functions to non-sendable ones doesn't happen in arbitrary expressions

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

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

implicit conversionsFeature: implicit conversionsFeature: implicit conversions

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

swift 6.2

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

typesFeature: typesFeature: types

unexpected errorBug: Unexpected errorBug: Unexpected error

Status: Open.

#78753 In swiftlang/swift;

· li3zhen1 opened on Jan 20, 2025

Type inference fails when enabling InferSendableFromCaptures

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

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

expressionsFeature: expressionsFeature: expressions

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

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

Status: Open.

#77488 In swiftlang/swift;

· jqsilver opened on Nov 8, 2024

<code>AnyObject</code> is Sendable in Argument Position

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

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

expressionsFeature: expressionsFeature: expressions

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

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

Status: Open.

#77292 In swiftlang/swift;

· sidepelican opened on Oct 30, 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

Spurious warning when assigning a method of a Sendable object to a @Sendable closure

compilerThe Swift compiler itselfThe Swift compiler itself

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

featureA feature request or implementationA feature request or implementation

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

implicit conversionsFeature: implicit conversionsFeature: implicit conversions

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

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

typesFeature: typesFeature: types

Status: Open.

#71541 In swiftlang/swift;

· groue opened on Feb 11, 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