Tact Language Server

Features

• Syntax highlighting
• Code completion
• Go to definition
• Find references
• Hover information
• Diagnostics
• Code formatting
• Inlay hints

Installation

First, clone and build the language server:

git clone https://github.com/i582/language-server
cd language-server
yarn install
yarn build

VS Code

The easiest way to get started with Tact is using VS Code:

1. Run the following command to create the VSIX package:

yarn package

2. In VS Code:
   • Open the Command Palette (Ctrl+Shift+P or Cmd+Shift+P)
   • Type "Install from VSIX"
   • Select the generated .vsix file
   • Reload VS Code

The extension will automatically activate when you open any .tact file.

Configuration

The language server supports the following settings:

{
    tact: {
        stdlib: {
            path: "",
            // Path to Tact standard library. If empty, will try to find in node_modules
        },
        hints: {
            types: true,
            // Show type hints for variables and expressions
            parameters: true,
            // Show parameter name hints in function calls
            showMethodId: true,
            // Show method ID hints for contract functions
            exitCodeFormat: "decimal",
            // Format of exit codes in require(): "decimal" or "hex"
        },
        codeLens: {
            enabled: true,
            // Enable/disable all code lens
        },
    },
}

Helix

1. Make sure you have Helix installed and configured
2. Add the following configuration to your ~/.config/helix/languages.toml:

[[language]]
name = "tact"
language-servers = ["tact-language-server"]

[language-server.tact-language-server]
command = "node"
args = ["path/to/language-server/dist/server.js", "--stdio"]

3. Replace path/to/language-server with the actual path where you cloned the repository
4. Restart Helix for changes to take effect

Neovim

Prerequisites:

• nvim-lspconfig
• Neovim 0.5.0 or newer

Setup steps:

1. Add tact.lua to your lua/lspconfig/server_configurations directory with the following content:

local util = require 'lspconfig.util'

return {
  default_config = {
    cmd = { 'node', '/absolute/path/to/language-server/dist/server.js', '--stdio' },
    filetypes = { 'tact' },
    root_dir = util.root_pattern('package.json', '.git'),
  },
  docs = {
    description = [[
      Tact Language Server
      https://github.com/i582/language-server
    ]],
    default_config = {
      root_dir = [[root_pattern("package.json", ".git")]],
    },
  },
}

2. Add the following to your init.lua:

require'lspconfig'.tact.setup {}

Sublime Text

1. Install LSP package:

   • Open Command Palette (Ctrl+Shift+P or Cmd+Shift+P)
   • Select "Package Control: Install Package"
   • Search for and select "LSP"

2. Install the Tact package via Package Control for syntax highlighting

3. Add the following configuration to your LSP settings (Preferences > Package Settings > LSP > Settings):

{
    "clients": {
        "tact": {
            "enabled": true,
            "command": ["node", "path/to/language-server/dist/server.js", "--stdio"],
            "selector": "source.tact"
        }
    }
}

4. Create a new file with .tact extension to verify the setup

Troubleshooting

Common issues:

• Path to the language server is incorrect
• Node.js is not installed
• Language server wasn't built properly

Logs Location

The language server generates logs that can help diagnose issues:

• For standalone server: logs are written to dist/tact-language-server.log in the language server directory
• For VS Code extension: logs can be found in:
  • Windows: %USERPROFILE%\.vscode\extensions\tact-[version]\dist\tact-language-server.log
  • macOS/Linux: ~/.vscode/extensions/tact-[version]/dist/tact-language-server.log

For more help, please open an issue.

License

MIT