TinyS – Python-shaped syntax with Rust semantics

TinyS is a new programming language that offers Python-shaped syntax with Rust semantics, transpiling to Rust and compiling to native binaries without a garbage collector or runtime. The language, detailed in a GitHub repository, supports ownership, borrowing, lifetimes, traits, and Result-based errors from Rust, while providing Python-like indentation-based syntax and immutable-by-default variables.

If you are an AI developer wanting to learn rust, you can take all your python knowledge and put it into TinyS ;- Python-shaped syntax, Rust semantics, native binaries. You write indentation-based .sn source; it transpiles to Rust and compiles to a native binary. No GC, no runtime — ownership, borrowing, lifetimes, traits, and Result -based errors all carry over from Rust unchanged. .sn source → generated .rs → rustc / Cargo → native binary Python's look , not Python's guarantees : conditions must be bool , matches are exhaustive, no implicit truthiness, no implicit conversion, no null . | TinyS | Rust | |---|---| def f x: i32 - i32: | fn f x: i32 - i32 {} | list i32 / dict str,i32 | Vec<i32 / HashMap<… | ref T / mut ref T | &T / &mut T | at value | value | .a , .source | 'a , 'source | Result User, Error | Result<User, Error | match / case | match arms | and / or / not | && / || / | str / ref str | String / &str | from rust.regex import … | use regex::… | python from rust.serde import Serialize, Deserialize derive Debug, Clone, Serialize, Deserialize struct User: id: u64 name: str impl User: def greeting self: ref Self - str: return format "Hello, {}", self.name def main - void: user = User id=1, name="Ada" print user.greeting Immutable by default — count = 0 , opt into mutation with mut total = 0 . Borrowing is a keyword — ref / mut ref instead of & / &mut ; dereference with at ; move for explicit ownership transfer. Errors — Result / Option , ? propagation, none for absence. No exceptions. Pattern matching — exhaustive, an expression; wildcard, | alternatives, if guards, as binds the whole value. Control flow is expression-oriented — if , match , and loop produce values. Async — async def with postfix .await . Rust interop is always visible — crates come through the rust root from rust.serde import … ; macros are imported and called without . Packaging — tinys.toml maps onto Cargo; modules follow the file layout. Full design drafts live in doc/draft/ /ewiger/TinyS/blob/main/doc/draft ; see the README /ewiger/TinyS/blob/main/README.md for the complete tour.