Earlier quoted context omitted.
> Integration with the Typescript language server was just not as good as VSCode. I can't pin down exactly what was wrong but the autocompletions in particular felt much worse. I've never worked on a language server or editor so I don't know what's on zed/VSCode and what's on the TS language server. VSCode cheats a little in this area. It has its own autocomplete engine that can be guided by extension config, which i…
Any idea how this works? It seems crazy that a generic engine can outdo a language-specific LSP server.
If the code is currently in an un-parsable state, and a valid AST can’t be produced, then the LSP is forced to work with whatever parsed version of the code it was last able to build a valid AST for. Making the autocomplete results, incomplete.
VSCode on the other hand is basically performing tokenisation and fuzzy search on those tokens. It doesn’t really care about the validity of the code, that means more false positive suggestions (I.e. suggesting stuff that can’t compile), but very robust handling of un-compileable code. That plus prioritising LSP suggests over fuzzy suggestions, results in VScode providing a very nice graceful fallback for LSP failures, that people probably use more often than they expect.