fixed_vs_array.s

test_fixed:
	movl	112(%rdi), %eax
	movl	116(%rdi), %edx
	retq

test_array:
	movl	116(%rdi), %edx
	xorl	%eax, %eax
	cmpl	$1, 112(%rdi)
	sete	%al
	retq

test.rs

macro_rules! expand {
    ($len:expr, ($($member:ident),*), $get:ident) => {
        #[allow(unused)]
        #[derive(Clone, Copy, fixed_map::Key)]
        pub enum FixedKey {
            $($member,)*
        }

        #[no_mangle]
        pub fn test_fixed(map: &fixed_map::Map<FixedKey, u32>) -> Option<u32> {
            map.get(FixedKey::$get).cloned()
        }

        #[allow(unused)]
        #[repr(usize)]
        pub enum ArrayKey {
            $($member,)*
        }

        #[no_mangle]
        pub fn test_array(map: &[Option<u32>; $len]) -> Option<u32> {
            map[ArrayKey::$get as usize].clone()
        }
    }
}

expand! {
    16,
    (T00, T01, T02, T03, T04, T05, T06, T07, T8, T9, T10, T11, T12, T13, T14, T15),
    T14
}