https://github.com/williamvenner/inline-rust

A cursed macro that compiles and executes Rust and spits the output directly into your Rust code
https://github.com/williamvenner/inline-rust

embed inline macro proc-macro procmacro rust

Last synced: 30 days ago
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A cursed macro that compiles and executes Rust and spits the output directly into your Rust code

• Host: GitHub
• URL: https://github.com/williamvenner/inline-rust
• Owner: WilliamVenner
• License: mit
• Created: 2021-11-22T20:50:17.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2022-11-26T13:29:39.000Z (over 2 years ago)
• Last Synced: 2025-05-06T02:41:25.421Z (about 1 month ago)
• Topics: embed, inline, macro, proc-macro, procmacro, rust
• Language: Rust
• Homepage: https://docs.rs/inline-rust/
• Size: 8.79 KB
• Stars: 30
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# inline-rust

This is a stupid macro inspired by [`inline-python`](https://github.com/fusion-engineering/inline-python) that compiles and executes Rust and spits the output directly into your Rust code.

There is a use case of using it to evaluate advanced "const" expressions, see the example below... if you dare.

# Usage

```toml

[dependencies]

inline-rust = "*"

```

# Example

```rust

// Compiles using cargo

const CONST_HASH: &'static str = inline_rust!(

    r#"

        [dependencies]

        sha2 = "0.9.8"

    "#,

    {

        use sha2::Digest;

        let mut sum: i32 = 0;

        for n in 0..30 {

            sum += n;

        }

        format!("\"{:x}\"", sha2::Sha256::digest(&sum.to_ne_bytes()))

    }

);

// Compiles using rustc

const CONST_FOR_LOOP: i32 = inline_rust!({

    let mut sum: i32 = 0;

    for n in 0..30 {

        sum += n;

    }

    format!("{}", sum)

});

```