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308
.config/emacs/modules/lang/javascript/config.el
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308
.config/emacs/modules/lang/javascript/config.el
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;;; lang/javascript/config.el -*- lexical-binding: t; -*-
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(after! projectile
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(pushnew! projectile-project-root-files "package.json")
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(pushnew! projectile-globally-ignored-directories "node_modules" "flow-typed"))
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;;
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;;; Major modes
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(dolist (feature '(rjsx-mode
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typescript-mode
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web-mode
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(nodejs-repl-mode . nodejs-repl)))
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(let ((pkg (or (cdr-safe feature) feature))
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(mode (or (car-safe feature) feature)))
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(with-eval-after-load pkg
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(set-docsets! mode "JavaScript"
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"AngularJS" "Backbone" "BackboneJS" "Bootstrap" "D3JS" "EmberJS" "Express"
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"ExtJS" "JQuery" "JQuery_Mobile" "JQuery_UI" "KnockoutJS" "Lo-Dash"
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"MarionetteJS" "MomentJS" "NodeJS" "PrototypeJS" "React" "RequireJS"
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"SailsJS" "UnderscoreJS" "VueJS" "ZeptoJS")
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(set-ligatures! mode
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;; Functional
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:def "function"
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:lambda "() =>"
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:composition "compose"
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;; Types
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:null "null"
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:true "true" :false "false"
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;; Flow
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:not "!"
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:and "&&" :or "||"
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:for "for"
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:return "return"
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;; Other
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:yield "import"))))
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(use-package! rjsx-mode
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:mode "\\.[mc]?js\\'"
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:mode "\\.es6\\'"
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:mode "\\.pac\\'"
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:interpreter "node"
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:hook (rjsx-mode . rainbow-delimiters-mode)
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:init
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;; Parse node stack traces in the compilation buffer
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(after! compilation
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(add-to-list 'compilation-error-regexp-alist 'node)
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(add-to-list 'compilation-error-regexp-alist-alist
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'(node "^[[:blank:]]*at \\(.*(\\|\\)\\(.+?\\):\\([[:digit:]]+\\):\\([[:digit:]]+\\)"
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2 3 4)))
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:config
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(set-repl-handler! 'rjsx-mode #'+javascript/open-repl)
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(set-electric! 'rjsx-mode :chars '(?\} ?\) ?. ?:))
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(setq js-chain-indent t
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;; These have become standard in the JS community
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js2-basic-offset 2
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;; Don't mishighlight shebang lines
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js2-skip-preprocessor-directives t
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;; let flycheck handle this
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js2-mode-show-parse-errors nil
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js2-mode-show-strict-warnings nil
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;; Flycheck provides these features, so disable them: conflicting with
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;; the eslint settings.
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js2-strict-missing-semi-warning nil
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;; maximum fontification
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js2-highlight-level 3
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js2-idle-timer-delay 0.15)
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(setq-hook! 'rjsx-mode-hook
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;; Indent switch-case another step
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js-switch-indent-offset js2-basic-offset)
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(use-package! xref-js2
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:when (featurep! :tools lookup)
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:init
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(setq xref-js2-search-program 'rg)
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(set-lookup-handlers! 'rjsx-mode
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:xref-backend #'xref-js2-xref-backend))
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;; HACK `rjsx-electric-gt' relies on js2's parser to tell it when the cursor
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;; is in a self-closing tag, so that it can insert a matching ending tag
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;; at point. The parser doesn't run immediately however, so a fast typist
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;; can outrun it, causing tags to stay unclosed, so force it to parse:
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(defadvice! +javascript-reparse-a (n)
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;; if n != 1, rjsx-electric-gt calls rjsx-maybe-reparse itself
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:before #'rjsx-electric-gt
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(if (= n 1) (rjsx-maybe-reparse))))
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(use-package! typescript-mode
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:hook (typescript-mode . rainbow-delimiters-mode)
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:hook (typescript-tsx-mode . rainbow-delimiters-mode)
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:commands typescript-tsx-mode
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:init
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;; REVIEW We associate TSX files with `typescript-tsx-mode' derived from
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;; `web-mode' because `typescript-mode' does not officially support
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;; JSX/TSX. See emacs-typescript/typescript.el#4
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(add-to-list 'auto-mode-alist
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(cons "\\.tsx\\'"
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(if (featurep! :lang web)
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#'typescript-tsx-mode
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#'typescript-mode)))
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(when (featurep! :checkers syntax)
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(after! flycheck
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(flycheck-add-mode 'javascript-eslint 'web-mode)
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(flycheck-add-mode 'javascript-eslint 'typescript-mode)
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(flycheck-add-mode 'javascript-eslint 'typescript-tsx-mode)
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(flycheck-add-mode 'typescript-tslint 'typescript-tsx-mode)
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(unless (featurep! +lsp)
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(after! tide
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(flycheck-add-next-checker 'typescript-tide '(warning . javascript-eslint) 'append)
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(flycheck-add-mode 'typescript-tide 'typescript-tsx-mode)))
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(add-hook! 'typescript-tsx-mode-hook
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(defun +javascript-disable-tide-checkers-h ()
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(pushnew! flycheck-disabled-checkers
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'javascript-jshint
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'tsx-tide
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'jsx-tide)))))
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:config
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(when (fboundp 'web-mode)
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(define-derived-mode typescript-tsx-mode web-mode "TypeScript-TSX"))
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(set-docsets! '(typescript-mode typescript-tsx-mode)
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:add "TypeScript" "AngularTS")
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(set-electric! '(typescript-mode typescript-tsx-mode)
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:chars '(?\} ?\))
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:words '("||" "&&"))
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;; HACK Fixes comment continuation on newline
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(autoload 'js2-line-break "js2-mode" nil t)
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(setq-hook! 'typescript-mode-hook
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comment-line-break-function #'js2-line-break
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;; Most projects use either eslint, prettier, .editorconfig, or tsf in order
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;; to specify indent level and formatting. In the event that no
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;; project-level config is specified (very rarely these days), the community
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;; default is 2, not 4. However, respect what is in tsfmt.json if it is
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;; present in the project
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typescript-indent-level
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(or (and (bound-and-true-p tide-mode)
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(plist-get (tide-tsfmt-options) :indentSize))
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typescript-indent-level)
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;; Fix #5556: expand .x to className="x" instead of class="x", if
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;; `emmet-mode' is used.
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emmet-expand-jsx-className? t))
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;;
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;;; Tools
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(add-hook! '(typescript-mode-local-vars-hook
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typescript-tsx-mode-local-vars-hook
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web-mode-local-vars-hook
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rjsx-mode-local-vars-hook)
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(defun +javascript-init-lsp-or-tide-maybe-h ()
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"Start `lsp' or `tide' in the current buffer.
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LSP will be used if the +lsp flag is enabled for :lang javascript AND if the
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current buffer represents a file in a project.
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If LSP fails to start (e.g. no available server or project), then we fall back
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to tide."
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(let ((buffer-file-name (buffer-file-name (buffer-base-buffer))))
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(when (derived-mode-p 'js-mode 'typescript-mode 'typescript-tsx-mode)
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(if (null buffer-file-name)
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;; necessary because `tide-setup' and `lsp' will error if not a
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;; file-visiting buffer
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(add-hook 'after-save-hook #'+javascript-init-lsp-or-tide-maybe-h
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nil 'local)
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(or (if (featurep! +lsp) (lsp!))
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;; fall back to tide
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(if (executable-find "node")
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(and (require 'tide nil t)
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(progn (tide-setup) tide-mode))
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(ignore
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(doom-log "Couldn't start tide because 'node' is missing"))))
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(remove-hook 'after-save-hook #'+javascript-init-lsp-or-tide-maybe-h
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'local))))))
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(use-package! tide
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:hook (tide-mode . tide-hl-identifier-mode)
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:config
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(set-company-backend! 'tide-mode 'company-tide)
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;; navigation
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(set-lookup-handlers! 'tide-mode :async t
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:xref-backend #'xref-tide-xref-backend
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:documentation #'tide-documentation-at-point)
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(set-popup-rule! "^\\*tide-documentation" :quit t)
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(setq tide-completion-detailed t
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tide-always-show-documentation t
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;; Fix #1792: by default, tide ignores payloads larger than 100kb. This
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;; is too small for larger projects that produce long completion lists,
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;; so we up it to 512kb.
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tide-server-max-response-length 524288
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;; We'll handle it
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tide-completion-setup-company-backend nil)
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;; Resolve to `doom-project-root' if `tide-project-root' fails
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(advice-add #'tide-project-root :override #'+javascript-tide-project-root-a)
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;; Cleanup tsserver when no tide buffers are left
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(add-hook! 'tide-mode-hook
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(add-hook 'kill-buffer-hook #'+javascript-cleanup-tide-processes-h
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nil 'local))
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;; Eldoc is activated too soon and disables itself, thinking there is no eldoc
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;; support in the current buffer, so we must re-enable it later once eldoc
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;; support exists. It is set *after* tide-mode is enabled, so enabling it on
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;; `tide-mode-hook' is too early, so...
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(advice-add #'tide-setup :after #'eldoc-mode)
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(map! :localleader
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:map tide-mode-map
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"R" #'tide-restart-server
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"f" #'tide-format
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"rrs" #'tide-rename-symbol
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"roi" #'tide-organize-imports))
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(use-package! js2-refactor
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:hook ((js2-mode rjsx-mode) . js2-refactor-mode)
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:init
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(map! :after js2-mode
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:map js2-mode-map
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:localleader
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(:prefix ("r" . "refactor")
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(:prefix ("a" . "add/arguments"))
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(:prefix ("b" . "barf"))
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(:prefix ("c" . "contract"))
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(:prefix ("d" . "debug"))
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(:prefix ("e" . "expand/extract"))
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(:prefix ("i" . "inject/inline/introduce"))
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(:prefix ("l" . "localize/log"))
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(:prefix ("o" . "organize"))
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(:prefix ("r" . "rename"))
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(:prefix ("s" . "slurp/split/string"))
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(:prefix ("t" . "toggle"))
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(:prefix ("u" . "unwrap"))
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(:prefix ("v" . "var"))
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(:prefix ("w" . "wrap"))
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(:prefix ("3" . "ternary"))))
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:config
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(when (featurep! :editor evil +everywhere)
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(add-hook 'js2-refactor-mode-hook #'evil-normalize-keymaps)
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(let ((js2-refactor-mode-map (evil-get-auxiliary-keymap js2-refactor-mode-map 'normal t t)))
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(js2r-add-keybindings-with-prefix (format "%s r" doom-localleader-key)))))
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;;;###package skewer-mode
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(map! :localleader
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(:after js2-mode
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:map js2-mode-map
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"S" #'+javascript/skewer-this-buffer
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:prefix ("s" . "skewer"))
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:prefix "s"
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(:after skewer-mode
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:map skewer-mode-map
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"E" #'skewer-eval-last-expression
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"e" #'skewer-eval-defun
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"f" #'skewer-load-buffer)
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(:after skewer-css
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:map skewer-css-mode-map
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"e" #'skewer-css-eval-current-declaration
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"r" #'skewer-css-eval-current-rule
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"b" #'skewer-css-eval-buffer
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"c" #'skewer-css-clear-all)
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(:after skewer-html
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:map skewer-html-mode-map
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"e" #'skewer-html-eval-tag))
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;;;###package npm-mode
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(use-package! npm-mode
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:hook ((js-mode typescript-mode) . npm-mode)
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:config
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(map! :localleader
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(:map npm-mode-keymap
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"n" npm-mode-command-keymap)
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(:after js2-mode
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:map js2-mode-map
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:prefix ("n" . "npm"))))
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;;
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;;; Projects
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(def-project-mode! +javascript-npm-mode
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:modes '(html-mode
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css-mode
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web-mode
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markdown-mode
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js-mode ; includes js2-mode and rjsx-mode
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json-mode
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typescript-mode
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solidity-mode)
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:when (locate-dominating-file default-directory "package.json")
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:add-hooks '(add-node-modules-path npm-mode))
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(def-project-mode! +javascript-gulp-mode
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:when (locate-dominating-file default-directory "gulpfile.js"))
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