219 breaking releases

Uses new Rust 2024

new 0.222.0 May 5, 2025
0.220.0 Apr 28, 2025
0.217.0 Mar 20, 2025
0.203.0 Dec 20, 2024
0.5.0 Mar 31, 2022

#874 in Procedural macros

Download history 39717/week @ 2025-01-13 30794/week @ 2025-01-20 33017/week @ 2025-01-27 37155/week @ 2025-02-03 41876/week @ 2025-02-10 26102/week @ 2025-02-17 38816/week @ 2025-02-24 34314/week @ 2025-03-03 42995/week @ 2025-03-10 35357/week @ 2025-03-17 35651/week @ 2025-03-24 35757/week @ 2025-03-31 37110/week @ 2025-04-07 47097/week @ 2025-04-14 59228/week @ 2025-04-21 37004/week @ 2025-04-28

181,134 downloads per month
Used in 139 crates (3 directly)

MIT license

250KB
7K SLoC

deno_ops

proc_macro for generating highly optimized V8 functions from Rust functions.

use deno_core::{op2, extension};

// Declare an op.
#[op2(fast)]
pub fn op_add(a: i32, b: i32) -> i32 {
  a + b
}

// Register with an extension.
extension!(
  math,
  ops = [op_add]
)

Dependencies

~1.6–2.2MB
~46K SLoC