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Created May 11, 2019 07:14
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README.md

Tide

Build Status

TypeScript Interactive Development Environment for Emacs

screencast

Installation

  • Install node.js v0.12.0 or greater.
  • Make sure tsconfig.json or jsconfig.json is present in the root folder of the project.
  • Tide is available in melpa. You can install tide via package-install M-x package-install [ret] tide

Configuration

TypeScript

(defun setup-tide-mode ()
  (interactive)
  (tide-setup)
  (flycheck-mode +1)
  (setq flycheck-check-syntax-automatically '(save mode-enabled))
  (eldoc-mode +1)
  (tide-hl-identifier-mode +1)
  ;; company is an optional dependency. You have to
  ;; install it separately via package-install
  ;; `M-x package-install [ret] company`
  (company-mode +1))

;; aligns annotation to the right hand side
(setq company-tooltip-align-annotations t)

;; formats the buffer before saving
(add-hook 'before-save-hook 'tide-format-before-save)

(add-hook 'typescript-mode-hook #'setup-tide-mode)

Format options

Format options can be specified in multiple ways.

  • via elisp
(setq tide-format-options '(:insertSpaceAfterFunctionKeywordForAnonymousFunctions t :placeOpenBraceOnNewLineForFunctions nil))
  • via tsfmt.json (should be present in the root folder along with tsconfig.json)
{
  "indentSize": 4,
  "tabSize": 4,
  "insertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces": false,
  "placeOpenBraceOnNewLineForFunctions": false,
  "placeOpenBraceOnNewLineForControlBlocks": false
}

Check here for the full list of supported format options.

TSX

(require 'web-mode)
(add-to-list 'auto-mode-alist '("\\.tsx\\'" . web-mode))
(add-hook 'web-mode-hook
          (lambda ()
            (when (string-equal "tsx" (file-name-extension buffer-file-name))
              (setup-tide-mode))))
;; enable typescript-tslint checker
(flycheck-add-mode 'typescript-tslint 'web-mode)

Tide also provides support for editing js & jsx files. Tide checkers javascript-tide and jsx-tide are not enabled by default for js & jsx files. It can be enabled by setting flycheck-checker

JavaScript

Create jsconfig.json in the root folder of your project. jsconfig.json is tsconfig.json with allowJs attribute set to true.

{
  "compilerOptions": {
    "target": "es2017",
    "allowSyntheticDefaultImports": true,
    "noEmit": true,
    "checkJs": true,
    "jsx": "react",
    "lib": [ "dom", "es2017" ]
  }
}
(add-hook 'js2-mode-hook #'setup-tide-mode)
;; configure javascript-tide checker to run after your default javascript checker
(flycheck-add-next-checker 'javascript-eslint 'javascript-tide 'append)

JSX

(require 'web-mode)
(add-to-list 'auto-mode-alist '("\\.jsx\\'" . web-mode))
(add-hook 'web-mode-hook
          (lambda ()
            (when (string-equal "jsx" (file-name-extension buffer-file-name))
              (setup-tide-mode))))
;; configure jsx-tide checker to run after your default jsx checker
(flycheck-add-mode 'javascript-eslint 'web-mode)
(flycheck-add-next-checker 'javascript-eslint 'jsx-tide 'append)

Use Package

(use-package tide
  :ensure t
  :after (typescript-mode company flycheck)
  :hook ((typescript-mode . tide-setup)
         (typescript-mode . tide-hl-identifier-mode)
         (before-save . tide-format-before-save)))

Commands

Keyboard shortcuts Description
M-. Jump to the definition of the symbol at point. With a prefix arg, Jump to the type definition.
M-, Return to your pre-jump position.

M-x tide-restart-server Restart tsserver. This would come in handy after you edit tsconfig.json or checkout a different branch.

M-x tide-documentation-at-point Show documentation for the symbol at point.

M-x tide-references List all references to the symbol at point in a buffer. References can be navigated using n and p. Press enter to open the file.

M-x tide-project-errors List all errors in the project. Errors can be navigated using n and p. Press enter to open the file.

M-x tide-error-at-point Show the details of the error at point.

M-x tide-rename-symbol Rename all occurrences of the symbol at point.

M-x tide-rename-file Rename current file and all it's references in other files.

M-x tide-format Format the current region or buffer.

M-x tide-fix Apply code fix for the error at point. When invoked with a prefix arg, apply code fix for all the errors in the file that are similar to the error at point.

M-x tide-add-tslint-disable-next-line If the point is on one or more tslint errors, add a tslint:disable-next-line flag on the previous line to silence the errors. Or, if a flag already exists on the previous line, modify the flag to silence the errors.

M-x tide-refactor Refactor code at point or current region.

M-x tide-jsdoc-template Insert JSDoc comment template at point.

M-x tide-verify-setup Show the version of tsserver.

M-x tide-organize-imports Organize imports in the file.

M-x tide-list-servers List the tsserver processes launched by tide.

Features

  • ElDoc
  • Auto complete
  • Flycheck
  • Jump to definition, Jump to type definition
  • Find occurrences
  • Rename symbol
  • Imenu
  • Compile On Save
  • Highlight Identifiers
  • Code Fixes
  • Code Refactor
  • Organize Imports

Debugging

architecture

Tide uses tsserver as the backend for most of the features. It writes out a comprehensive log file which can be captured by setting tide-tsserver-process-environment variable.

(setq tide-tsserver-process-environment '("TSS_LOG=-level verbose -file /tmp/tss.log"))

FAQ?

How do I configure tide to use a specific version of TypeScript compiler?

For TypeScript 2.0 and above, you can customize the tide-tsserver-executable variable. For example

(setq tide-tsserver-executable "node_modules/typescript/bin/tsserver")

Sadly, this won't work for TypeScript < 2.0. You can clone the repo locally and checkout the old version though.

Custom Variables

####tide-sync-request-timeout 2

The number of seconds to wait for a sync response.

####tide-tsserver-process-environment 'nil

List of extra environment variables to use when starting tsserver.

####tide-tsserver-executable nil

Name of tsserver executable to run instead of the bundled tsserver.

This may either be an absolute path or a relative path. Relative paths are resolved against the project root directory.

Note that this option only works with TypeScript version 2.0 and above.

####tide-node-executable "node"

Name or path of the node executable binary file.

####tide-post-code-edit-hook nil

Hook run after code edits are applied in a buffer.

####tide-sort-completions-by-kind nil

Whether completions should be sorted by kind.

####tide-format-options 'nil

Format options plist.

####tide-user-preferences '(:includeCompletionsForModuleExports t :includeCompletionsWithInsertText t :allowTextChangesInNewFiles t)

User preference plist used on the configure request.

Check https://github.com/Microsoft/TypeScript/blob/17eaf50b73c1355d2fd15bdc3912aa64a73483dd/src/server/protocol.ts#L2684 for the full list of available options.

####tide-disable-suggestions nil

Disable suggestions.

If set to non-nil, suggestions will not be shown in flycheck errors and tide-project-errors buffer.

####tide-completion-ignore-case nil

CASE will be ignored in completion if set to non-nil.

####tide-completion-detailed nil

Completion dropdown will contain detailed method information if set to non-nil.

####tide-completion-enable-autoimport-suggestions t

Whether to include external module exports in completions.

####tide-navto-item-filter #'tide-navto-item-filter-default

The filter for items returned by tide-nav. Defaults to class, interface, type, enum

####tide-jump-to-definition-reuse-window t

Reuse existing window when jumping to definition.

####tide-imenu-flatten nil

Imenu index will be flattened if set to non-nil.

####tide-allow-popup-select '(code-fix refactor)

The list of commands where popup selection is allowed.

####tide-always-show-documentation nil

Show the documentation window even if only type information is available.

####tide-server-max-response-length 102400

Maximum allowed response length from tsserver. Any response greater than this would be ignored.

####tide-tsserver-locator-function #'tide-tsserver-locater-npmlocal-projectile-npmglobal

Function used by tide to locate tsserver.

####tide-default-mode "TS"

The default mode to open buffers not backed by files (e.g. Org source blocks) in.

####tide-recenter-after-jump t

Recenter buffer after jumping to definition

####tide-filter-out-warning-completions nil

Completions whose :kind property is "warning" will be filtered out if set to non-nil. This option is useful for Javascript code completion, because tsserver often returns a lot of irrelevant completions whose :kind property is "warning" for Javascript code. You can fix this behavior by setting this variable to non-nil value for Javascript buffers using setq-local macro.

####tide-hl-identifier-idle-time 0.5

How long to wait after user input before highlighting the current identifier.

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