Features

Above you can find all available features that clojure-lsp provides with examples using Emacs lsp-mode as the client.

Find a function/var definition

Find defprotocol/defmulti implementations

Find a function/var declaration in the ns

Find all references of a function, var, keyword or namespace alias

Show all workspace/project symbols

Show all symbols on current file

Rename symbols

Also, it's possible to live rename symbols on the same buffer with linkedEditingRange feature.

Document highlight on hover showing symbol usages

Documentation and clojuredocs integration

Java support

Completion

Snippets

Snippets are templates that make it easier to enter repeating code patterns, such as common functions/forms, they are available during completion. Tabstops are defined as $number with $0 as last tabstop.

Check all available snippets here

name	description	raw content
comment	Insert comment block	(comment\n ${0:body}\n )
comment-heading	Insert comment Header	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;\n;; ${1:Namespace summary title}\n;;\n;; ${2:Brief description}\n;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;\n\n$0
comment-separator	Insert comment separator	;; ${1:Namespace summary title}\n;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;\n\n$0
rich-comment	Insert rich comment	(comment $0 #_())
rich-comment-rdd	Insert rich comment rdd block	#_{:clj-kondo/ignore [:redefined-var]}\n(comment\n $0 #_())
rich-comment-hotload	Insert rich comment library hotload	#_{:clj-kondo/ignore [:redefined-var]}\n(comment\n ;; Add-lib library for hot-loading\n (require '[clojure.tools.deps.alpha.repl :refer [add-libs]])\n (add-libs '{${1:domain/library-name} {:mvn/version \"${2:1.0.0}\"}$3})\n $0\n)
condp	Insert condp	(condp ${1:pred} ${2:expr}\n $0)
def	Insert def	(def ${1:name} $0)
def-	Insert def private	(def ^:private ${1:name} $0)
def-doc	Insert def with docstring	(def ${1:name}\n \"${2:docstring}\"\n $0)
defmethod	Insert defmethod	(defmethod ${1:name} ${2:match}\n [${3:args}]\n $0)
defmulti	Insert defmulti	(defmulti ${1:name} ${2:dispatch-fn})
defn	Insert public defn	(defn ${1:name} [$2]\n $0)
defn-doc	Insert public defn with docstring	(defn ${1:name}\n \"${2:docstring}\"\n [${3:args}]\n $0)
defn-	Insert private defn	(defn%s ${1:name} [$2]\n $0)
defprotocol	Insert defprotocol	(defprotocol ${1:Name}\n $0)
defrecord	Insert defrecord	(defrecord ${1:Name} [${2:fields}]\n ${3:Protocol}\n $0)
deftype	Insert deftype	(deftype ${1:Name} [${2:fields}]\n ${3:Protocol}\n $0)
fn	Insert fn	(fn [${1:arg-list}] $0)
for	Insert for	(for [${1:item} ${2:coll}]\n $0)
if	Insert if	(if ${1:test-expr}\n ${2:then-expr}\n ${3:else-expr})
kwargs	Insert keyword args	{:keys [${1:keys}] :or {${2:defaults}}}
let	Insert let	(let [$0])
letfn	Insert letfn	(letfn [(${1:name} [${2:args}]\n $0)])
ns	Insert ns	(ns ${1:name}\n $0:references})
ns-doc	Insert ns with docstring	(ns ${1:name}\n \"${2:docstring}\"\n ${0:references})
require	Insert ns :require	(:require [${1:namespace}])$0
require-as	Insert ns require with :as alias	(:require [${1:namespace} :as ${2:alias}]$3)
require-refer	Insert ns :require with :refer	(:require [${1:namespace} :refer [$2]]$3)
require-rdd	Insert require for rich comment experiments	(require '[${1:namespace} :as ${2:alias}]$3)$0
req-as	Insert single require dep :as alias	[${1:namespace} :as ${2:alias}]
req-refer	Insert single require dep with :refer	[${1:namespace} :refer [$2]]
import	Insert import	(:import [${1:package}])
use	Insert require refer preferred over use	(:require [${1:namespace} :refer [$2]])
deps-alias	Insert alias with extra path & deps	:${1:category/name}\n {:extra-paths [\"${2:path}\"]\n :extra-deps {${3:deps-maven or deps-git}}}$0
deps-maven	Insert maven dependency	${1:domain/library-name} {:mvn/version \"${2:1.0.0}\"}$0
deps-git	Insert git dependency	${1:domain/library-name}\n {:git/sha \"${2:git-sha-value}\"}$0
deps-git-tag	Insert git tag dependency	${1:domain/library-name}\n {:git/tag \"${2:git-tag-value}\"\n :git/sha \"${3:git-sha-value}\"}$0
deps-git-url	Insert git URL dependency	${1:domain/library-name}\n {:git/url \"https://github.com/$1\"\n :git/sha \"${2:git-sha-value}\"}$0
deps-local	Insert local dependency	${1:domain/library-name} {:local/root \"${2:/path/to/project/root}\"}$0
deftest	Insert deftest clojure.test	(deftest ${1:name}-test\n (testing \"${2:Context of the test assertions}\"\n (is (= ${3:assertion-values}))$4)) $0
testing	Insert testing clojure.test	(testing \"${1:Context of the test assertions}\"\n $0)
is	Insert is clojure.test	(is (= ${1:assertion-values}))

Custom snippets

User can register additional custom snippets, for more information on how to configure it, check the snippets settings section.

Code actions

Name	Example
Clean namespace require/imports
Add require
Add known common require
Add known common import
Add suggested alias require
Create private function
Resolve macro as...
Inline symbol
Change coll to map,vector,set,list
Move coll entry up/down
Move to let
Cycle privacy
Cycle fn literal
Extract function
Thread first/all last
Unwind thread
Sort map
Suppress diagnostic
Create test for function

Code lenses showing symbol references

Format a whole file or range

Signature help

Semantic tokens

The LSP server is the best to say what is the semantic value of a token on the editor, semantic tokens allows server return to client all tokens of a buffer and how client show apply highlight.

Note: server return the semantic token (e.g. function) and the client/editor apply the color that matches the user's theme.

Call hierarchy

Show the incoming or outgoing call hierarchy of a function/variable as a lazy tree

Incoming

Show functions that call the current one recursively

Outgoing

Show functions that the current one call, recursively

Test Tree

Show the tests tree hierarchy of a file

Diagnostics (linter)

All linters besides the ones below come from clj-kondo that clojure-lsp calls under the hood to lint the code and retrieve the analysis to make most of features work.

Every linter configuration should be done on clj-kondo side, so anything related to unresolved symbols or unknown macros are probably related to wrong clj-kondo for the project. For more information on how to configure clj-kondo check here.

Below you can find the custom linters implemented on clojure-lsp side that uses the :custom-lint-fn from clj-kondo:

clojure-lsp/unused-public-var

For more information on how to configure it, check the diagnostics settings section.

Stub generation

It's possible to configure clojure-lsp to generate and analyze stubs for specific namespaces available on your project classpath, this is useful for closed source dependencies like datomic.api, with that clojure-lsp will be able to make most features work with those dependencies. For more information check the stubs settings section.

Execute command

Commands that client can request. Most code actions use these commands as actions.

Refactoring

Commands that change/refactor the code. See above for screenshots.

Note: Most of them are available via code actions and most of the time you want to call the code action and not the command manually

• Clean namespace *
• Add import to namespace
• Add missing require *
• Cycle privacy of def/defn *
• Cycle fn literal (fn []), #() *
• Cycle collection (#{}, {}, [], ())
• Change collection to {}, (), #{}, [] *
• Extract Function *
• Create private function *
• Inline Symbol *
• Expand let
• Introduce let
• Move expression to let
• Thread first expression
• Thread last expression
• Thread first all *
• Thread last all *
• Unwind all *
• Unwind thread
• Resolve macro as *
• Create test *
• Sort map *
• Move coll entry up *
• Move coll entry down *

Dev

Server information

Return basic information about the server.

Cursor information

Return debug information about the element at point.