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Incorrect (but understandable) fix-it for missing labels on a function with non-final default arguments

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

call expressionsFeature → expressions: Call expressionsFeature → expressions: Call expressions

compilerThe Swift compiler itselfThe Swift compiler itself

default argumentsFeature: default arguments for value parametersFeature: default arguments for value parameters

diagnostics QoIBug: Diagnostics Quality of ImplementationBug: Diagnostics Quality of Implementation

expressionsFeature: expressionsFeature: expressions

fix-itsFeature: diagnostic fix-itsFeature: diagnostic fix-its

swift 5.9

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

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

Status: Open.

#72208 In swiftlang/swift;

· jrose-signal opened on Mar 9, 2024

Variadics and UnsafePointers

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

genericsFeature: generic declarations and typesFeature: generic declarations and types

parameter packsFeature → generics: Parameter packsFeature → generics: Parameter packs

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

swift 5.9

Status: Open.

#71452 In swiftlang/swift;

· carlynorama opened on Feb 7, 2024

Swift compiler doesn't support turning off whole module optimization on certain projects

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

FrontendArea → compiler: FrontendArea → compiler: Frontend

swift 5.9

whole module optimizationFeature: Whole module optimizationFeature: Whole module optimization

Status: Open.

#70995 In swiftlang/swift;

· dabrahams opened on Jan 18, 2024

Possible <code>-whole-module-optimization</code> bug

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

swift 5.9

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

whole module optimizationFeature: Whole module optimizationFeature: Whole module optimization

Status: Open.

#70979 In swiftlang/swift;

· dabrahams opened on Jan 18, 2024

Optimisation difference between <code>!x</code> and <code>x == false</code>

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

run-time performance

SILOptimizerArea → compiler: SIL optimization passesArea → compiler: SIL optimization passes

swift 5.9

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

Status: Open.

#70655 In swiftlang/swift;

· karwa opened on Dec 31, 2023

Passing class-constrained type as AnyObject instance behavior is not matched on Darwin and non-Darwin platform

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

good first issueGood for newcomersGood for newcomers

swift 5.9

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

Status: Open.

#70645 In swiftlang/swift;

· Kyle-Ye opened on Dec 28, 2023

Refactoring on method change tick-masked variables

backticked identifiersFeature → identifiers: Backticked identifiers. Allows using reserved words as identifiersFeature → identifiers: Backticked identifiers. Allows using reserved words as identifiers

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

refactoringArea → source tooling: refactoringArea → source tooling: refactoring

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

swift 5.9

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

Status: Open.

#70620 In swiftlang/swift;

· bastie opened on Dec 24, 2023

Using a non-keypath as a keypath leads to 'unable to infer closure type without a type annotation"

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

closuresFeature: closuresFeature: closures

diagnostics QoIBug: Diagnostics Quality of ImplementationBug: Diagnostics Quality of Implementation

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

type inferenceFeature: type inferenceFeature: type inference

Status: Open.

#69795 In swiftlang/swift;

· stackotter opened on Nov 11, 2023

Crash when mangling TypeKind::OpenedArchetype (while Lowering AST to SIL)

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

closuresFeature: closuresFeature: closures

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

expressionsFeature: expressionsFeature: expressions

manglingArea → compiler: ManglingArea → compiler: Mangling

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

swift 5.9

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

Status: Open.

#69620 In swiftlang/swift;

· art-divin opened on Nov 2, 2023

Swift can't find its subcommands from within emacs on Windows

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

legacy driverArea → compiler: the integrated C++ legacy driver. Succeeded by the swift-driver projectArea → compiler: the integrated C++ legacy driver. Succeeded by the swift-driver project

swift 5.9

unexpected errorBug: Unexpected errorBug: Unexpected error

WindowsPlatform: WindowsPlatform: Windows

Status: Open.

#69492 In swiftlang/swift;

· dabrahams opened on Oct 29, 2023

Using packs in closure: cannot fully abstract a value of variadic function type.

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

closuresFeature: closuresFeature: closures

compilerThe Swift compiler itselfThe Swift compiler itself

expressionsFeature: expressionsFeature: expressions

genericsFeature: generic declarations and typesFeature: generic declarations and types

parameter packsFeature → generics: Parameter packsFeature → generics: Parameter packs

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

swift 5.9

unexpected errorBug: Unexpected errorBug: Unexpected error

Status: Open.

#69412 In swiftlang/swift;

· CrystDragon opened on Oct 25, 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