Hot Language Support

Full language support for Hot — a functional, expression-based language for backend workflows.

Features

• Syntax Highlighting — Keywords, types, flows, namespaces, strings, and more
• Language Server — Diagnostics, autocomplete, hover info, go-to-definition
• Markdown Support — Syntax highlighting in fenced code blocks

Quick Start

1. Install the Hot CLI
2. Open a .hot file
3. The language server starts automatically

Syntax Overview

::myapp::greeter ns

// Variables (no = sign)
greeting "Hello"

// Functions
greet fn (name: Str): Str {
  `${greeting}, ${name}!`
}

// Conditional flow
classify fn cond (x: Int): Str {
  lt(x, 0) => { "negative" }
  => { "positive" }
}

// Type with coercion
Date type { year: Int, month: Int, day: Int }

Date -> Str fn (d: Date): Str {
  `${d.year}-${d.month}-${d.day}`
}

Commands

Settings

Links

• Hot Docs
• Hot Language Reference