SYXSwift-inspired. Rust-powered.

A modern programming language with VM, LLVM native AOT, and Wasm — source files end in .sy

Familiar syntax

Swift-style func / let / var, protocols, generics, async/await — with honest semantic differences from Swift.

Stack VM for fast iteration (syx run), LLVM for native AOT, and Wasm emit/run — one MIR pipeline.

Syntax highlighting, member/import completion, hover, inlay hints, format on save, and DAP debugging via syx lsp.

Math, IO, Net, Crypto, Os, Sync, Linalg and more as importable packages with documented boundaries.

func main() {
    print("Hello, World")
}

bash

cargo build --release -p syx-cli
./target/release/syx run examples/hello.sy

Path	Audience
Quick Guide	Install, CLI, projects, Native / Wasm
Quick Reference	Syntax and stdlib cheat sheet
Editors · VS Code	Syntax highlighting, completion, LSP, DAP
Language Guide	Learn SYX from the basics to advanced features
Language Reference	Formal lexical, syntax, and type reference
Standard Library	Embedded packages: Linalg, Os, Log, IO, Net…
Compiler Internals	Lexer → parser → semantic → MIR → backends
Capabilities	What is implemented today (honest boundaries)

Documentation is synced from the repository books/ and docs/ trees. Switch to 简体中文 via the locale picker in the nav.