7 unstable releases (3 breaking)
0.4.1 | Aug 8, 2019 |
---|---|
0.4.0 | Aug 8, 2019 |
0.3.1 | Jul 19, 2019 |
0.2.0 | Jul 13, 2019 |
0.1.1 | Jul 13, 2019 |
#1705 in Procedural macros
17KB
338 lines
overloadable
Easy to use overloadable functions in rust using nightly features.
This crate provides you with the capabilities to overload your functions in a similar style to C# or C++, including support for meta attributes, type parameters and constraints, and visibility modifiers. Please visit the documentation for futher information.
Note
This is a nightly crate. You must include the following line in your code for this crate to compile:
#![feature(unboxed_closures, fn_traits)]
Example:
#![feature(unboxed_closures, fn_traits)]
use overloadable::overloadable;
overloadable! {
pub func as
#[inline(always)]
fn(x: usize, y: usize) -> usize {
x * y
},
fn<'a>(x: &'a usize) -> f32 {
*x as f32
},
fn<'a, T>(x: &'a [T]) -> &'a T where T: std::fmt::Debug {
println!("Found {:?}", &x[0]);
&x[0]
}
}
fn foo() {
assert_eq!(func(2, 3), 6);
assert_eq!(func(&32), 32.0);
assert_eq!(func(&[1, 2, 3, 4][..]), &0);
}
Dependencies
~2MB
~46K SLoC