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# lsp-bridge: complete asynchronous LSP client
Andy Stewart and Matthew Zeng (IRC: Andy: manateelazycat)

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Emacs built-in single-threaded mechanism and GC design will cause Emacs to freeze when receiving oversized LSP data.

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Lsp-bridge uses python's threading technology to build caches that bridge Emacs and LSP server. Lsp-bridge will provide a smooth completion experience without compromise to slow down emacs' performance.

lsp-bridge is completely asynchronous, to the point that even the completion popup is controlled by lsp-bridge. It offloads all the computation to an external python process, and hence the emacs session itself stays always responsive, as it has very few things to do.

lsp-bridge has now supported 39 LSP servers and all kinds completion backend: include LSP、 TabNine、 Citre、 Elisp、 Search Words、 Path、 Yasnippet、 Tempel、 Telegra、 English etc, it just works pretty well out of the box.

Related design, please check <https://manateelazycat.github.io/emacs/2022/05/12/lsp-bridge.html> and <https://manateelazycat.github.io/emacs/2022/06/26/why-lsp-bridge-not-use-capf.html> (sorry, I'm Chinese Emacser)



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[[!taglink CategoryCoding]]