I think you are talking about an IDE for developing the Swift toolchain. I do not have one of those myself. I just use a text editor. It works well enough for me. But if I were to envision one it'd use Visual Studio Code, Bear, clangd, vscode-clangd and vscode-lldb. The hardest part, I imagine, would be getting Bear to see the CMake commands that the build scripts issue so it can generate the
If you are talking about building a development environment for writing Swift code. Then I'd agree with @cukr, sourcekit-lsp is the way to go. I can say from personal experience that works very well for SwiftPM projects (even if it includes system modules and C code). The best part is that you don't even need to build
sourcekit-lsp it is included with the 5.2.1 toolchain. You just need to install the extension for your editor. @cukr's link to editors would be a good place to start. I use Visual Studio Code with the VSCode extension in the sourcekit-lsp in repository. The only thing that does not work well is the integration of the vscode-lldb extension with the lldb that comes with Swift. I don't, yet, have an integrated debugger. But
dump get me really far in that way.