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Modernize lsp-mode integration

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* switch the company-backend used by lsp-mode from company-lsp to
company-capf (said to provide better performance and allows us to remove
the dependency on company-lsp)

* when available (on recent builds of Emacs 27+), lsp-mode buffers will
now use a larger than default value of `read-process-output-max`.
According to the lsp-mode performance guide, this can also significantly
improve lsp-mode performance

* flycheck support recently moved into lsp proper; with this commit,
the lsp module follows suit and prefers lsp-flycheck over
lsp-ui-flycheck

* if the new module flag `+no-peek` is set, doom-emacs will now use the xref
backend for reference and definition lookup instead of the lsp-ui-peek-*
backend offered by lsp-ui-mode
This commit is contained in:
Sebastian Sturm 2020-02-23 16:37:16 +01:00 • committed by Sebastian Sturm
parent ca1a614e63
commit 998dccd8fe
4 changed files with 62 additions and 46 deletions
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3
modules/tools/lsp/README.org
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@ -52,12 +52,11 @@ As of this writing, this is the state of LSP support in Doom Emacs:
| [[../../lang/web/README.org][:lang web]] | web-mode, css-mode, scss-mode, sass-mode, less-css-mode | vscode-css-languageserver-bin, vscode-html-languageserver-bin |
** Module Flags
This module provides no flags.
+ =+peek= Enables the =lsp-ui-peek= navigation frontend provided by the =lsp-ui= package.
** Plugins
+ [[https://github.com/emacs-lsp/lsp-mode][lsp-mode]]
+ [[https://github.com/emacs-lsp/lsp-ui][lsp-ui]]
+ [[https://github.com/tigersoldier/company-lsp][company-lsp]]*
* Prerequisites
This module has no direct prerequisites, but major-modes require you to install