fn test_coerce_type_and_lifetime_params()

in gazebo/src/coerce.rs [177:202]

• 22 lines of code
• 2 McCabe index (conditional complexity)

    fn test_coerce_type_and_lifetime_params() {
        #[derive(Coerce)]
        #[repr(C)]
        struct Aaa<'a>(&'a u32);
        #[derive(Coerce)]
        #[repr(C)]
        struct Bbb<'a>(&'a u32);

        unsafe impl<'a> Coerce<Bbb<'a>> for Aaa<'a> {}

        #[derive(Coerce)]
        #[repr(C)]
        struct StructWithLifetimeAndTypeParams<'a, X> {
            x: X,
            _marker: marker::PhantomData<&'a u32>,
        }

        let ten = 10;
        let old = StructWithLifetimeAndTypeParams::<Aaa> {
            x: Aaa(&ten),
            _marker: marker::PhantomData,
        };

        let new: StructWithLifetimeAndTypeParams<Bbb> = coerce(old);
        assert_eq!(10, *new.x.0);
    }