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No fix-it for integer literal to <code>OptionSet</code> conversion

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

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

expressionsFeature: expressionsFeature: expressions

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

integer literalsFeature → literals: Integer literalsFeature → literals: Integer literals

literalsFeature → expressions: Literals such as an integer or string literalFeature → expressions: Literals such as an integer or string literal

OptionSetArea → standard library: The `OptionSet` protocolArea → standard library: The `OptionSet` protocol

swift 6.2

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

Status: Open.

Bug

#81305 In swiftlang/swift;

· AnthonyLatsis opened on May 5, 2025

Large-ish literal array of Ints consumes 100GB of memory to compile, crashes system

array literalsFeature → expressions → literals: Array literalsFeature → expressions → literals: Array literals

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

literalsFeature → expressions: Literals such as an integer or string literalFeature → expressions: Literals such as an integer or string literal

performance

swift 6.2

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

Status: Open.

#79481 In swiftlang/swift;

· GarthSnyder opened on Feb 19, 2025

Value pack expansion in array literal

array literalsFeature → expressions → literals: Array literalsFeature → expressions → literals: Array literals

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

genericsFeature: generic declarations and typesFeature: generic declarations and types

literalsFeature → expressions: Literals such as an integer or string literalFeature → expressions: Literals such as an integer or string literal

pack expansionsFeature → expressions: Pack expansion expressionsFeature → expressions: Pack expansion expressions

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

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

swift 5.9

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

Status: Open.

#67192 In swiftlang/swift;

· lhunath opened on Jul 8, 2023

compiler crash when stack-promoting array literals inside specialized @inlinable generic functions

@inlinableFeature → attributes: the @inlinable attributeFeature → attributes: the @inlinable attribute

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

literalsFeature → expressions: Literals such as an integer or string literalFeature → expressions: Literals such as an integer or string literal

optimized onlyFlag: An issue whose reproduction requires optimized compilationFlag: An issue whose reproduction requires optimized compilation

Status: Open.

#63775 In swiftlang/swift;

· tayloraswift opened on Feb 19, 2023

Type checker crashes when type-checking <code>0</code> literal

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

literalsFeature → expressions: Literals such as an integer or string literalFeature → expressions: Literals such as an integer or string literal

numericsArea → standard library: Numeric APIArea → standard library: Numeric API

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

Status: Open.

#63603 In swiftlang/swift;

· MaxDesiatov opened on Feb 12, 2023

Type deduction <code>nil</code> =&gt; <code>(some X)?</code>; <code>'τ_0_0'</code> in diagnostic

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

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

genericsFeature: generic declarations and typesFeature: generic declarations and types

literalsFeature → expressions: Literals such as an integer or string literalFeature → expressions: Literals such as an integer or string literal

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

swift 5.7

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

type inferenceFeature: type inferenceFeature: type inference

Status: Open.

#62787 In swiftlang/swift;

· dabrahams opened on Dec 28, 2022

[SR-14478] Optional&lt;T&gt;.none is accepted, but nil is not

compilerThe Swift compiler itselfThe Swift compiler itself

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

improvement

literalsFeature → expressions: Literals such as an integer or string literalFeature → expressions: Literals such as an integer or string literal

nilFeature → expressions → literals: The `nil` literalFeature → expressions → literals: The `nil` literal

swift 5.9

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

type inferenceFeature: type inferenceFeature: type inference

Status: Open.

#56834 In swiftlang/swift;

· swift-ci opened on Apr 12, 2021

[SR-13792] Index store should relate appendInterpolation from string literals

expressionsFeature: expressionsFeature: expressions

featureA feature request or implementationA feature request or implementation

indexingArea → source tooling: AST indexingArea → source tooling: AST indexing

interpolated stringsFeature → expressions → literals → string literals: interpolated stringsFeature → expressions → literals → string literals: interpolated strings

literalsFeature → expressions: Literals such as an integer or string literalFeature → expressions: Literals such as an integer or string literal

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

StringArea → standard library: The `String` typeArea → standard library: The `String` type

string literalsFeature → expressions → literals: String literalsFeature → expressions → literals: String literals

swift 5.9

Status: Open.

#56189 In swiftlang/swift;

· swift-ci opened on Oct 29, 2020

[SR-12093] Checked Casts With Literals Are Deeply Unintuitive

castingFeature: explicit casting (is, as, as? and as!)Feature: explicit casting (is, as, as? and as!)

compilerThe Swift compiler itselfThe Swift compiler itself

improvement

literalsFeature → expressions: Literals such as an integer or string literalFeature → expressions: Literals such as an integer or string literal

swift evolution proposal neededFlag → feature: A feature that warrants a Swift evolution proposalFlag → feature: A feature that warrants a Swift evolution proposal

Status: Open.

#54529 In swiftlang/swift;

· CodaFi opened on Jan 28, 2020

[SR-6077] <code>Character</code> ends up accepting invalid emoji flag sequences.

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

CharacterArea → standard library: The `Character` typeArea → standard library: The `Character` type

literalsFeature → expressions: Literals such as an integer or string literalFeature → expressions: Literals such as an integer or string literal

standard libraryArea: Standard library umbrellaArea: Standard library umbrella

StringArea → standard library: The `String` typeArea → standard library: The `String` type

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

Status: Open.

#48632 In swiftlang/swift;

· YOCKOW opened on Oct 6, 2017