Support .swiftinterface files

[levitatingpineapple]

Enhancement

Consider adding swiftinterface to recognised file-types for swift language.

Context

.swiftinterface files as the name suggests describe an interface of a module. The syntax matches that of the swift, without function bodies. It's fairly common to look through these files since they contain inline documentation.

Support

🟢 Tree-sitter

• The highlights appear to be working (recovering) well even for +50k lines large files

🟡 LSP

• Goto definition was added to sourcekit-lsp last year 🎉
• Show docs also works
• Errors expected '{' are still emitted

Preview

demo.mp4

[the-mikedavis]

Feel free to open a PR. The diagnostics issue is a problem on the language server side unless there's some config we can add for the language server to not emit those.

[levitatingpineapple]

Thanks @the-mikedavis! I've opened a PR with improvements for Swift, that also includes the additional file-type 😊