Editor Setup

smelt provides a Language Server Protocol (LSP) implementation for real-time feedback in your editor.

VSCode

Install the smelt extension from the VS Marketplace.

The extension automatically discovers the smelt-lsp binary using this priority chain:

1. User config — smelt.serverPath setting in VSCode
2. Python environment — if you installed via pip install smelt-sql
3. PATH lookup — if smelt-lsp is on your system PATH
4. Cargo fallback — cargo run -p smelt-lsp (development only, requires Cargo.toml)

Features

• Syntax highlighting for SQL + smelt extensions
• Real-time diagnostics for undefined refs and parse errors
• Go-to-definition for smelt.ref() calls
• Hover information with type details
• Column completions with table alias support

Settings

Setting	Description
smelt.serverPath	Explicit path to smelt-lsp binary
smelt.trace.server	LSP trace level (off, messages, verbose)

Other editors

Any editor with LSP support can use smelt-lsp. Start the server and configure your editor's LSP client to connect to it:

smelt-lsp

The server communicates over stdin/stdout using the standard LSP protocol.