WAT Language Server

Language Server Protocol support for WebAssembly Text Format (.wat and .wast files).

Features

• Hover information - Types, signatures, and documentation
• Code completion - Instructions, variables, functions, and emmet-like expansions (5i32 → (i32.const 5))
• Signature help - Parameter hints for function calls
• Go to definition - Jump to functions, types, and variables
• Diagnostics - Real-time syntax and type error detection

Installation

Install from Open VSX Registry:

1. Open Extensions in your editor
2. Search for "WAT Language Server"
3. Click Install

Configuration

• watLsp.trace.server - Debug communication (off / messages / verbose)
• watLsp.serverPath - Custom server binary path (optional)

License

MIT