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Overload resolution behavior of <code>==</code> permits type inference to "ignore" default float literal type if Foundation is imported

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

operatorsFeature: operatorsFeature: operators

overload resolutionArea → compiler → type checker: Overload resolution (ranking)Area → compiler → type checker: Overload resolution (ranking)

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.

#78365 In swiftlang/swift;

· xwu opened on Dec 26, 2024

Misleading error message when comparing generics that vary in types

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

genericsFeature: generic declarations and typesFeature: generic declarations and types

operatorsFeature: operatorsFeature: operators

swift 6.0

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

Status: Open.

#73029 In swiftlang/swift;

· Alc-Was-Taken opened on Apr 14, 2024

failed to produce diagnostic for ... a range expression

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

for-in loopsFeature: for-in loopsFeature: for-in loops

genericsFeature: generic declarations and typesFeature: generic declarations and types

internal errorBug: Internal errorBug: Internal error

operatorsFeature: operatorsFeature: operators

statementsFeature: statementsFeature: statements

swift 6.0

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

Status: Open.

#72533 In swiftlang/swift;

· shin-ckane opened on Mar 22, 2024

Compiler error message points to wrong operator when trying to subtract &amp; mod <code>SuspendingClock.Instant</code>s

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

operatorsFeature: operatorsFeature: operators

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.

#72084 In swiftlang/swift;

· wadetregaskis opened on Mar 5, 2024

Quaternary operator

compilerThe Swift compiler itselfThe Swift compiler itself

featureA feature request or implementationA feature request or implementation

operatorsFeature: operatorsFeature: operators

standard libraryArea: Standard library umbrellaArea: Standard library umbrella

Status: Open.

#70361 In swiftlang/swift;

· AIWASS23 opened on Dec 10, 2023

Improve diagnostic when attempting to use <code>+=</code> to append a single element

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

improvement

operatorsFeature: operatorsFeature: operators

swift 5.9

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

Status: Open.

#65609 In swiftlang/swift;

· hamishknight opened on May 3, 2023

Instance method relying on implicitly opened existential cannot be replicated by operator

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

existentialsFeature: values of types like `any Collection`, `Any` and `AnyObject`; type-erased valuesFeature: values of types like `any Collection`, `Any` and `AnyObject`; type-erased values

implicit existential openingFeature → existentials: implicit opening of existentials when passed to parameters of generic typeFeature → existentials: implicit opening of existentials when passed to parameters of generic type

operatorsFeature: operatorsFeature: operators

swift 5.9

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

unexpected errorBug: Unexpected errorBug: Unexpected error

Status: Open.

#65333 In swiftlang/swift;

· JessyCatterwaul opened on Apr 20, 2023

Type inference fails when a literal is passed to a generic function and the return value is applied to a binary operator.

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

genericsFeature: generic declarations and typesFeature: generic declarations and types

operatorsFeature: operatorsFeature: operators

regression

swift 5.9

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

type inferenceFeature: type inferenceFeature: type inference

typesFeature: typesFeature: types

unexpected errorBug: Unexpected errorBug: Unexpected error

Status: Open.

#65061 In swiftlang/swift;

· kishikawakatsumi opened on Apr 11, 2023

Bad diagnostic when pattern matching <code>nil</code> that cannot be inferred

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

operatorsFeature: operatorsFeature: operators

swift 5.9

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

type inferenceFeature: type inferenceFeature: type inference

Status: Open.

#64279 In swiftlang/swift;

· hamishknight opened on Mar 10, 2023

<code>0 as UInt8 ... 10</code> no longer compiles

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

operatorsFeature: operatorsFeature: operators

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

regression

swift 5.8

swift 5.9

unexpected errorBug: Unexpected errorBug: Unexpected error

Status: Open.

#63776 In swiftlang/swift;

· mayoff opened on Feb 19, 2023

Bitwise operation between UInt and Int makes type check exceed time limit

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

operatorsFeature: operatorsFeature: operators

performance

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

Status: Open.

#62778 In swiftlang/swift;

· ecnelises opened on Dec 26, 2022

[SR-14729] Inaccurate diagnostic "Left side of nil coalescing operator '??' has non-optional type 'T?', so the right side is never used"

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

nil-coalescing operatorFeature → operators: The nil-coalescing operator `??`Feature → operators: The nil-coalescing operator `??`

operatorsFeature: operatorsFeature: operators

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

unexpected warningBug: Unexpected warningBug: Unexpected warning

Status: Open.

#57079 In swiftlang/swift;

· swift-ci opened on Jun 5, 2021