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 |
#1628 in Procedural macros
27 downloads per month
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
~45K SLoC