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+# Supported LSP features
+
+This list documents LSP features, supported by rust-analyzer.
+
+## General
+- [x] [initialize](https://microsoft.github.io/language-server-protocol/specification#initialize)
+- [x] [initialized](https://microsoft.github.io/language-server-protocol/specification#initialized)
+- [x] [shutdown](https://microsoft.github.io/language-server-protocol/specification#shutdown)
+- [ ] [exit](https://microsoft.github.io/language-server-protocol/specification#exit)
+- [x] [$/cancelRequest](https://microsoft.github.io/language-server-protocol/specification#cancelRequest)
+
+## Workspace
+- [ ] [workspace/workspaceFolders](https://microsoft.github.io/language-server-protocol/specification#workspace_workspaceFolders)
+- [ ] [workspace/didChangeWorkspaceFolders](https://microsoft.github.io/language-server-protocol/specification#workspace_didChangeWorkspaceFolders)
+- [x] [workspace/didChangeConfiguration](https://microsoft.github.io/language-server-protocol/specification#workspace_didChangeConfiguration)
+- [ ] [workspace/configuration](https://microsoft.github.io/language-server-protocol/specification#workspace_configuration)
+- [x] [workspace/didChangeWatchedFiles](https://microsoft.github.io/language-server-protocol/specification#workspace_didChangeWatchedFiles)
+- [x] [workspace/symbol](https://microsoft.github.io/language-server-protocol/specification#workspace_symbol)
+- [x] [workspace/executeCommand](https://microsoft.github.io/language-server-protocol/specification#workspace_executeCommand)
+ - `apply_code_action`
+- [ ] [workspace/applyEdit](https://microsoft.github.io/language-server-protocol/specification#workspace_applyEdit)
+
+## Text Synchronization
+- [x] [textDocument/didOpen](https://microsoft.github.io/language-server-protocol/specification#textDocument_didOpen)
+- [x] [textDocument/didChange](https://microsoft.github.io/language-server-protocol/specification#textDocument_didChange)
+- [ ] [textDocument/willSave](https://microsoft.github.io/language-server-protocol/specification#textDocument_willSave)
+- [ ] [textDocument/willSaveWaitUntil](https://microsoft.github.io/language-server-protocol/specification#textDocument_willSaveWaitUntil)
+- [x] [textDocument/didSave](https://microsoft.github.io/language-server-protocol/specification#textDocument_didSave)
+- [x] [textDocument/didClose](https://microsoft.github.io/language-server-protocol/specification#textDocument_didClose)
+
+## Diagnostics
+- [x] [textDocument/publishDiagnostics](https://microsoft.github.io/language-server-protocol/specification#textDocument_publishDiagnostics)
+
+## Lanuguage Features
+- [x] [textDocument/completion](https://microsoft.github.io/language-server-protocol/specification#textDocument_completion)
+ - open close: false
+ - change: Full
+ - will save: false
+ - will save wait until: false
+ - save: false
+- [x] [completionItem/resolve](https://microsoft.github.io/language-server-protocol/specification#completionItem_resolve)
+ - resolve provider: none
+ - trigger characters: `:`, `.`
+- [x] [textDocument/hover](https://microsoft.github.io/language-server-protocol/specification#textDocument_hover)
+- [x] [textDocument/signatureHelp](https://microsoft.github.io/language-server-protocol/specification#textDocument_signatureHelp)
+ - trigger characters: `(`,  `,`,  `)`
+- [ ] [textDocument/declaration](https://microsoft.github.io/language-server-protocol/specification#textDocument_declaration)
+- [x] [textDocument/definition](https://microsoft.github.io/language-server-protocol/specification#textDocument_definition)
+- [ ] [textDocument/typeDefinition](https://microsoft.github.io/language-server-protocol/specification#textDocument_typeDefinition)
+- [x] [textDocument/implementation](https://microsoft.github.io/language-server-protocol/specification#textDocument_implementation)
+- [x] [textDocument/references](https://microsoft.github.io/language-server-protocol/specification#textDocument_references)
+- [x] [textDocument/documentHighlight](https://microsoft.github.io/language-server-protocol/specification#textDocument_documentHighlight)
+- [x] [textDocument/documentSymbol](https://microsoft.github.io/language-server-protocol/specification#textDocument_documentSymbol)
+- [x] [textDocument/codeAction](https://microsoft.github.io/language-server-protocol/specification#textDocument_codeAction)
+ - rust-analyzer.syntaxTree
+ - rust-analyzer.extendSelection
+ - rust-analyzer.matchingBrace
+ - rust-analyzer.parentModule
+ - rust-analyzer.joinLines
+ - rust-analyzer.run
+ - rust-analyzer.analyzerStatus
+- [x] [textDocument/codeLens](https://microsoft.github.io/language-server-protocol/specification#textDocument_codeLens)
+- [ ] [textDocument/documentLink](https://microsoft.github.io/language-server-protocol/specification#codeLens_resolve)
+- [ ] [documentLink/resolve](https://microsoft.github.io/language-server-protocol/specification#documentLink_resolve)
+- [ ] [textDocument/documentColor](https://microsoft.github.io/language-server-protocol/specification#textDocument_documentColor)
+- [ ] [textDocument/colorPresentation](https://microsoft.github.io/language-server-protocol/specification#textDocument_colorPresentation)
+- [x] [textDocument/formatting](https://microsoft.github.io/language-server-protocol/specification#textDocument_formatting)
+- [ ] [textDocument/rangeFormatting](https://microsoft.github.io/language-server-protocol/specification#textDocument_rangeFormatting)
+- [x] [textDocument/onTypeFormatting](https://microsoft.github.io/language-server-protocol/specification#textDocument_onTypeFormatting)
+ - first trigger character: `=`
+ - more trigger character `.`
+- [x] [textDocument/rename](https://microsoft.github.io/language-server-protocol/specification#textDocument_rename)
+- [x] [textDocument/prepareRename](https://microsoft.github.io/language-server-protocol/specification#textDocument_prepareRename)
+- [x] [textDocument/foldingRange](https://microsoft.github.io/language-server-protocol/specification#textDocument_foldingRange)