crate_interface_lite 0.1.0

Provides a way to define an interface (trait) in a crate, but can implement or use it in any crate.
Documentation 
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use crate_interface_lite::*;

def_interface!(
    trait SimpleIf {
        fn foo() -> u32;

        /// Test comments
        fn bar(a: u16, b: &[u8], c: &str);
    }
);

pub struct SimpleIfImpl;
impl_interface!(
    impl SimpleIf for SimpleIfImpl {
        fn foo() -> u32 {
            456
        }

        /// Test comments2
        fn bar(a: u16, b: &[u8], c: &str) {
            println!("{} {:?} {}", a, b, c);
            assert_eq!(b[1], 3);
        }
    }
);

mod private {
    pub fn test_call_in_mod() {
        crate::call_interface!(super::SimpleIf::bar(123, &[2, 3, 5, 7, 11], "test"));
        crate::call_interface!(crate::SimpleIf::foo,);
    }
}

#[test]
fn test_crate_interface_call() {
    call_interface!(SimpleIf::bar, 123, &[2, 3, 5, 7, 11], "test");
    assert_eq!(call_interface!(SimpleIf::foo), 456);
    private::test_call_in_mod();
}