rewrite rust in rust

In order to rewrite Rust in Rust, you would need to write a new implementation of the Rust compiler in Rust itself. This involves implementing all of the features of the Rust programming language, such as the syntax, data structures, and library functions.

The official implementation of the Rust language, called the Rust reference compiler, is currently implemented using the Rust programming language. So technically, the Rust language has already been rewritten in Rust.

However, if you wanted to create your own implementation of the Rust compiler using Rust, you would start by familiarizing yourself with the Rust language syntax, data structures, and compilation process. After that, you would need to design and implement the various components of the compiler, such as the lexer, parser, type checker, and code generator.

Here is a basic example of Rust code that prints "Hello, world!" to the console:

main.rs
fn main() {
    println!("Hello, world!");
}
45 chars
4 lines

This code defines a function called main that prints the string "Hello, world!" to the console using the println! macro.

In order to compile and run this code, you would need to first install the Rust toolchain on your system. Once you have installed the toolchain, you can compile the code using the rustc command:

main.rs
$ rustc main.rs
16 chars
2 lines

This will generate an executable file called main that you can run:

main.rs
$ ./main
Hello, world!
23 chars
3 lines