comptime 0.0.1

Compile-time code execution (i.e. lightweight proc-macro)
Documentation

Lightweight compile-time expression evaluation. This crate is inspired by Zig's comptime.

The expression returned by the contents of the comptime macro invocation will be parsed as Rust source code and inserted back into the call site.

Example

#![feature(proc_macro_hygiene)]
fn main() {
    println!(concat!(
        "This program was compiled at ",
        comptime::comptime! {
            chrono::Utc::now()
        },
        "."
    )); // "This program was compiled at 2019-08-30 03:52:58.496747469 UTC."
}