---
title: "swiftLanguageMode(_:_:)"
framework: packagedescription
role: symbol
role_heading: Type Method
path: "packagedescription/swiftsetting/swiftlanguagemode(_:_:)"
---

# swiftLanguageMode(_:_:)

Defines a -language-mode to pass  to the corresponding build tool.

## Declaration

```swift
static func swiftLanguageMode(_ mode: SwiftLanguageMode, _ condition: BuildSettingCondition? = nil) -> SwiftSetting
```

## Parameters

- `mode`: The Swift language mode to use.
- `condition`: A condition that restricts the application of the build setting.

## Discussion

Discussion note: First available in PackageDescription 6.0.

## See Also

### Configuring Swift Settings

- [define(_:_:)](packagedescription/swiftsetting/define(_:_:).md)
- [unsafeFlags(_:_:)](packagedescription/swiftsetting/unsafeflags(_:_:).md)
- [strictMemorySafety(_:)](packagedescription/swiftsetting/strictmemorysafety(_:).md)
- [defaultIsolation(_:_:)](packagedescription/swiftsetting/defaultisolation(_:_:).md)
- [enableExperimentalFeature(_:_:)](packagedescription/swiftsetting/enableexperimentalfeature(_:_:).md)
- [enableUpcomingFeature(_:_:)](packagedescription/swiftsetting/enableupcomingfeature(_:_:).md)
- [interoperabilityMode(_:_:)](packagedescription/swiftsetting/interoperabilitymode(_:_:).md)
- [SwiftSetting.InteroperabilityMode](packagedescription/swiftsetting/interoperabilitymode.md)
- [swiftLanguageVersion(_:_:)](packagedescription/swiftsetting/swiftlanguageversion(_:_:).md)