Updates the swift_import documentation to provide more information on the swiftinterface attribute. This attribute is required when importing pre-built Swift targets across Xcode and/or OS versions.
Additionally, adds a warning when swiftinterface is used alongside swiftmodule as this used to just drop swiftinterface silently. We'll make this a failure in a new major version to not break users.
Updates the
swift_importdocumentation to provide more information on theswiftinterfaceattribute. This attribute is required when importing pre-built Swift targets across Xcode and/or OS versions.Additionally, adds a warning when
swiftinterfaceis used alongsideswiftmoduleas this used to just dropswiftinterfacesilently. We'll make this a failure in a new major version to not break users.