SourceKit-LSP is an implementation of the Language Server Protocol (LSP) for Swift and C-based languages. It provides intelligent editor functionality like code-completion and jump-to-definition to editors that support LSP. SourceKit-LSP is built on top of sourcekitd and clangd for high-fidelity language support, and provides a powerful source code index as well as cross-language support. SourceKit-LSP supports projects that use the Swift Package Manager and projects that generate a compile_commands.json file, such as CMake.
https://www.swift.org/tools has a list of popular editors that support LSP and can thus be hooked up to SourceKit-LSP to provide intelligent editor functionality as well as set-up guides.
If you should hit any issues while using SourceKit-LSP, we appreciate bug reports on GitHub Issue.
Important
SourceKit-LSP does not update its global index in the background or build Swift modules in the background. Thus, a lot of cross-module or global functionality is limited if the project hasn't been built recently. To update the index or rebuild the Swift modules, build the project.
If you want to contribute code to SourceKit-LSP, see CONTRIBUTING.md for more information.