// An array dimension that folds to a valid compile-time integer but exceeds a
// `u32` (`[5_000_000_000]i64`) is a hard error — a clean sx diagnostic with a
// non-zero exit, NOT a compiler panic.
//
// Regression (issue 0087 / F0.4 attempt 6): the dimension folded to a valid i64
// (5e9) and was then narrowed with an unchecked `@intCast` to u32, aborting the
// COMPILER with "integer does not fit in destination type". Every dim/lane fold
// now narrows through the single range-checked `program_index.foldDimU32`, which
// reports an out-of-u32-range dimension as this diagnostic and halts the build.
#import "modules/std.sx";

main :: () {
    a : [5000000000]i64 = ---;
    print("unreachable: {}\n", a.len);
}