// A DIRECT array dimension that is genuinely not a compile-time integer (a
// runtime call) is a hard error — ONE clean diagnostic + non-zero exit. Crucially
// it must NOT fabricate a length and must NOT crash later in lowering: the bad
// var is used downstream (element store + read, `.len`), and lowering has to bail
// gracefully on the `.unresolved` type rather than `@panic` in `sizeOf` or pile
// on cascade errors.
//
// Regression (issue 0083): the stateful `resolveArrayLen` emitted the diagnostic
// then `return 0` — fabricating a 0-length array (0-byte alloca, OOB access) to
// dodge the `sizeOf` panic. It now returns null → the `.unresolved` sentinel; the
// binding's lowering bails on it (a field access on an already-diagnosed
// `.unresolved` value stays silent), so the single real diagnostic aborts the
// build with no fabrication and no panic.
#import "modules/std.sx";

get :: () -> s64 { return 5; }

main :: () {
    a : [get()]s64 = ---;
    a[0] = 7;
    print("unreachable: {} {}\n", a.len, a[0]);
}