tact.vim

🚀 Adds syntax highlighting, grammar completion and miscellaneous support for the Tact programming language to Vim 8+ and Neovim.

⚡ Tact is a new programming language for TON blockchain that is focused on efficiency and simplicity. It is designed to be easy to learn and use, and to be a good fit for smart contracts, because it is a statically typed language with a simple syntax and a powerful type system.

Features

Syntax highlighting, which closely follows Tact specification in its Ohm grammar file
Indentation, as well as single-line and multi-line comments support
Basic indentation & folding support
Compiler integration support
Abbreviations in INSERT mode
Auto-completion (omnifunc/completefunc) support of static (global) and extension (methods on types) functions from stdlib, and all of the basic grammar
(use ctrl-x ctrl-o to trigger it or setup shortcuts as you wish)
Basic linting, which automatically triggers on omnicompletion. Don't forget to close your braces {}, parenthesis () and names, or use keyword completion instead ;)

See the highlighting showcase below (uses One Dark color scheme).
Note, that you can disable highlighting of identifiers, if you want to :)

Installation

First time in Vim 8+? Read this!

Click to see

Assuming you don't have any configuration in the .vimrc file, it's nicer to setup some sane defaults first before using this (or any other) plugin. Also, the following mini-guide will use the built-in package management for Vim 8+ and won't introduce anything fancy.

Steps:

Get yourself a Vim of version 8+ installed and make sure to have git installed and present on your path as well
Create a ~/.vimrc file (or ~/_vimrc if you're on Windows)
Without such file there were sourced defaults by the Vim authors, but once it's created, we have to put them back explicitly by adding those lines in and saving changes :w:

unlet! skip_defaults_vim
source $VIMRUNTIME/defaults.vim

While we're here, let's add some tact.vim-specific stuff in as well. This time save and quit as we no longer need to add anything (:wq):

let g:tact_style_guide = 1  " Enabling default indentation style

" the following is optional and added purely for your convenience:
inoremap <silent> <c-space> <c-x><c-o>  " Open completion menu on ctrl-space

Note: on macOS the <c-space> is already bound in the system, so unless the terminal intercepts it you'll have to use a different keybinding.

It's also nice to source in the extended defaults provided by the tpope/vim-sensible. To do so, let's use the built-in package manager:

On Linux, macOS or *BSD:

git clone "https://github.com/tpope/vim-sensible.git" ~/.vim/pack/tpope/start/sensible

On Windows, do this in PowerShell:

git clone 'https://github.com/tpope/vim-sensible.git' $HOME\vimfiles\pack\tpope\start\sensible

Finally, let's install ⚡ tact.vim:

On Linux, macOS or *BSD:

git clone "https://github.com/tact-lang/tact.vim.git" ~/.vim/pack/tact-lang/start/tact
vim -u NONE -c "helptags $HOME/.vim/pack/tact-lang/start/tact/doc" -c q

On Windows, do this in PowerShell:

git clone 'https://github.com/tact-lang/tact.vim.git' $HOME\vimfiles\pack\tact-lang\start\tact
vim -u NONE -c 'helptags $HOME\vimfiles\pack\tact-lang\start\tact\doc' -c q

Start the Vim in the valid Tact project to be able to use :Tact command for easy compilation or simply provide any .tact file otherwise. Happy coding 🚀

Built-in package manager in Vim 8+

Click to see

This is the recommended installation method if you use at least Vim 8 and you don't use another package manager. More about Vim's built-in package manager: :help packages.

For Linux/macOS:

git clone "https://github.com/tact-lang/tact.vim.git" ~/.vim/pack/tact-lang/start/tact
vim -u NONE -c "helptags $HOME/.vim/pack/tact-lang/start/tact/doc" -c q

For Windows/PowerShell:

git clone 'https://github.com/tact-lang/tact.vim.git' $HOME\vimfiles\pack\tact-lang\start\tact
vim -u NONE -c 'helptags $HOME\vimfiles\pack\tact-lang\start\tact\doc' -c q

Don't forget to restart Vim after :)

Vundle

Click to see

Info about it: Vundle repository.

Steps:

Add tact.vim to your plugin list in ~/.vimrc (or ~/_vimrc on Windows) by inserting the line that starts with Plugin:
```
call vundle#begin()
  " ...
  Plugin 'tact-lang/tact.vim'
  " ...
call vundle#end()
```
Restart Vim or run :source ~/.vimrc.
Run :PluginInstall.

vim-plug

Click to see

Info about it: vim-plug repository.

Steps:

Add tact.vim to your plugin list in ~/.vimrc (or ~/_vimrc on Windows) by inserting the line that starts with Plug:
```
call plug#begin()
  "...
  Plug 'tact-lang/tact.vim'
  "...
call plug#end()
```
Restart Vim or run :source ~/.vimrc.
Run :PlugInstall.

lazy.nvim (Neovim-only)

Click to see

Info about it:

lazy.nvim repository.
Installation of lazy.nvim

Steps:

Add tact.vim to your lazy.nvim setup in ~/.config/nvim/init.lua (or ~/AppData/Local/nvim/init.lua on Windows):
```
 require('lazy').setup({
   -- ...
   { 'tact-lang/tact.vim' },
   -- ...
 }, {})
```
Run :Lazy.

Configuration

Completion

By default this plugin sets an omnifunc option to provide auto-completions by triggering CTRL-xCTRL-o in INSERT mode. However, if you're using an LSP client for Tact language, it may overwrite this option and disable the completion and basic linting capabilities provided by this plugin alongside of it.

In order to prevent that behaviour you may want to bind completion features of this plugin to a competefunc option (which is quite conveniently triggered by CTRL-xCTRL-u in INSERT mode). Add the following to your ~/.vimrc (or ~/_vimrc on Windows) if you'd like to prefer and bind completefunc over omnifunc:

" CTRL-x CTRL-u instead of CTRL-x CTRL-o
let g:tact_prefer_completefunc = 1

Neovim-only

vim.g.tact_prefer_completefunc = 1

Alternatively, add the following to the init key of your lazy.nvim config:

require('lazy').setup({
  -- ...
  {
    'tact-lang/tact.vim',
    init = function()
      -- ...
      vim.g.tact_prefer_completefunc = 1
      -- ...
    end,
  },
  -- ...
}, {})

Indentation

Add the following to your ~/.vimrc (or ~/_vimrc on Windows) to enable preferred indentation style for Tact:

let g:tact_style_guide = 1

Neovim-only

vim.g.tact_style_guide = 1

Alternatively, add the following to the init key of your lazy.nvim config:

require('lazy').setup({
  -- ...
  {
    'tact-lang/tact.vim',
    init = function()
      -- ...
      vim.g.tact_style_guide = 1
      -- ...
    end,
  },
  -- ...
}, {})

Highlighting

If you want to disable highlighting of identifiers: variables and constants (but not structures), add the following option:

let g:tact_blank_identifiers = 1

Neovim-only

vim.g.tact_blank_identifiers = 1

Alternatively, add the following to the init key of your lazy.nvim config:

require('lazy').setup({
  -- ...
  {
    'tact-lang/tact.vim',
    init = function()
      -- ...
      vim.g.tact_blank_identifiers = 1
      -- ...
    end,
  },
  -- ...
}, {})

To disable highlighting of structures (names of traits, messages, contracts and structs), add the following:

let g:tact_blank_structures = 1

Neovim-only

vim.g.tact_blank_structures = 1

Alternatively, add the following to the init key of your lazy.nvim config:

require('lazy').setup({
  -- ...
  {
    'tact-lang/tact.vim',
    init = function()
      -- ...
      vim.g.tact_blank_structures = 1
      -- ...
    end,
  },
  -- ...
}, {})

Formatting

Basic code formatting can be done by a series of Vim motions: gg=G (plus Ctrl-o twice to return to the original cursor position), or by invoking a :TactFmt command, which does all that for you without messing up with your cursor. Use both with caution, as Vim-native indentation handling is known to be prone to errors.

Folding

To enable code-folding add the following snippet. This one might have an impact on editing performance, proceed with caution:

augroup tact_folding
    au!
    au FileType tact setlocal foldmethod=syntax
augroup END

Neovim-only

Make a ~/.config/nvim/after/ftplugin directory (~/AppData/Local/nvim/after/ftplugin) and put the file tact.lua in it with the following contents:

vim.opt.foldmethod = "syntax"
vim.opt.foldenable = false  -- disables automatic folding on file opening

Abbreviations

To trigger an abbreviation, type it in followed by punctuation such as a space or comma, and it would get expanded into a code snippet. It's advised to use space for this as it usually produces best results.

These abbreviations (and auto-completions of their names) are available right away:

a_fun — expands to the function declaration
a_extfun — expands to the extension function declaration
a_mutfun — expands to the mutable function declaration
a_natfun — expands to the native function declaration
a_co — expands to the contract declaration
a_tr — expands to the trait declaration
a_st — expands to the struct declaration
a_me — expands to the message declaration
a_se — expands to send(SendParameters{...}) call

Keep in mind that abbreviations are always there and you can always type them in, even if they're not shown by omnicompletion when deemed not suitable for the current completion context.

To avoid expansion in INSERT mode, type Ctrl-V after the last character of the abbreviation (on Windows, type Ctrl-Q instead of Ctrl-V).

To completely disable abbreviations provided by this plugin only, add this to your ~/.vimrc (or ~/_vimrc on Windows):

let g:tact_disable_abbreviations = 1

Neovim-only

vim.g.tact_disable_abbreviations = 1

Alternatively, add the following to the init key of your lazy.nvim config:

require('lazy').setup({
  -- ...
  {
    'tact-lang/tact.vim',
    init = function()
      -- ...
      vim.g.tact_disable_abbreviations = 1
      -- ...
    end,
  },
  -- ...
}, {})

Linting

Simply run :Tact command to try to compile using Tacts' compiler and look for errors. See Usage section for more info on the command.

Miscellaneous

For the ease of omnicompletion usage, you may want to add this or similar bindings, but they are not obligatory to use the plugin:

" Open omnicompletion menu on ctrl-space
inoremap <silent> <c-space> <c-x><c-o>

Neovim-only

vim.keymap.set('i', '<c-space>', '<c-x><c-o>', { noremap = true, silent = true})

Note, that on macOS there's a default system-wide keyboard shortcut for CtrlSpace (^space). You may want to change it to be CmdSpace instead or use the different binding in Vim.

At times when omnicompletion (CTRL-xCTRL-o) can't complete much it fallbacks to keyword completion (CTRL-xCTRL-n). But that's not always the case, so if omnicompletion doesn't show anything, try keyword one!

Usage

For your convenience there's a :Tact command available whenever you open any .tact files. It tries to run the build script from your package.json project file, which, as shown in this official example here, should invoke a Tact compiler. You're expected to have a Node.js of the current LTS (or later) version installed on your system, alongside of npm for the :Tact command to work.

It's generally recommended to go over the example, as it shows how to get started with Tact. Alternatively, use the official project template: either copy or create a new repository based off of it.

Wish you good luck and fun exploring Tact! ⚡

Useful Tact links

Official Website
Documentation
Discussion Group in Telegram
X/Twitter

Credits

Based on The Open Network.

Built with 🤍 by Novus Nota.

License

MIT

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README.md

README.md

tact.vim

Features

Installation

First time in Vim 8+? Read this!

Built-in package manager in Vim 8+

Vundle

vim-plug

lazy.nvim (Neovim-only)

Configuration

Completion

Indentation

Highlighting

Formatting

Folding

Abbreviations

Linting

Miscellaneous

Usage

Useful Tact links

Credits

License

Files

README.md

Latest commit

History

README.md

File metadata and controls

tact.vim

Features

Installation

First time in Vim 8+? Read this!

Built-in package manager in Vim 8+

Vundle

vim-plug

lazy.nvim (Neovim-only)

Configuration

Completion

Indentation

Highlighting

Formatting

Folding

Abbreviations

Linting

Miscellaneous

Usage

Useful Tact links

Credits

License