// Tuple element assignment + named tuples.
//   - `t.0 = v` writes one element in place (was a known gap: the lvalue path
//     looked the element up by name via getStructFields and left the pointee
//     `.unresolved`; now it indexes the tuple positionally like the read path).
//   - Named tuples `(x: T, y: U)` keep their field names through parsing and
//     type resolution, so `t.x` reads/writes by name (and `.0` by position).

#import "modules/std.sx";

main :: () -> s32 {
    // Positional element assignment.
    a : (s32, string) = ---;
    a.0 = 11;
    a.1 = "x";
    print("a: {} {}\n", a.0, a.1);

    // Named tuple: write + read by name, and read by position.
    p : (x: s32, y: string) = ---;
    p.x = 22;
    p.y = "y";
    print("p: x={} y={} .0={}\n", p.x, p.y, p.0);
    p.0 = 33;                       // position write reaches the same slot as .x
    print("p.x after .0=33: {}\n", p.x);
    0;
}