// A BARE generic struct instance method with a BY-VALUE receiver (`self: Box`)
// must dispatch to the VISIBLE author's method, whose receiver ABI matches the
// VISIBLE author's layout. The single visible `b.Box` is one field (size 8); the
// 2-flat-hop `c.Box` is two fields (size 16). Selecting `c.Box.dbl` (a `{i64,i64}`
// by-value receiver) for a `b.Box` instance (`{i64}`) mismatches the layout.
//
// Regression (Phase E4 finding #1, by-value receiver variant): before
// body-author ≡ layout-author, the instance method resolved by bare template name
// and selected `c.Box.dbl`, whose by-value receiver signature did not match the
// `b.Box` instance layout (an LLVM verify failure / wrong body). With the fix it
// runs `b.Box.dbl` (`self.x * 2`).

#import "modules/std.sx";
#import "0778-modules-bare-generic-instance-by-value-receiver/b.sx";

main :: () -> i32 {
    x := Box(i64).make(5);
    print("size={} dbl={}\n", size_of(type_of(x)), x.dbl());
    0
}