Allan Shortlidge 13d61b0709 Frontend: Require -language-mode option when emitting swiftinterfaces. ...

If a `.swiftinterface` file does not include an explicit `-language-mode`
option (or its predecessor `swift-version`) and needs to be built as a
dependency of a client compilation, then the invocation to build the module
from interface would end up inheriting the language mode that the client code
is built with. This can result in spurious type checking diagnostics or even
mis-compilation. To ensure that a module interface is always built using the
language mode that its source code was originally built with, require an
explicit `-language-mode` option when emitting swiftinterface files.

Resolves rdar://145168219.

2025-09-12 09:10:23 -07:00

169 KiB

Raw Blame History

View Raw