SwiftLanguageMode The Swift language mode used to compile Swift sources in the package Declarationenum SwiftLanguageMode TopicsSwift Language ModesSwiftLanguageMode.v6SwiftLanguageMode.v5SwiftLanguageMode.v4_2SwiftLanguageMode.v4SwiftLanguageMode.version(_:)SwiftLanguageMode.v3 RelationshipsConforms ToCopyableCustomStringConvertibleEscapable See AlsoDeclaring Supported LanguagesCLanguageStandardCXXLanguageStandardswiftLanguageModescLanguageStandardcxxLanguageStandardSwiftVersionswiftLanguageVersions