// Forward identifier type alias — an alias whose target is declared LATER
// in the file resolves the same as an ordered one. `MyChain :: MyInt;`
// appears before `MyInt :: i32;`, yet `MyChain` resolves to `i32` and a
// forward chain (`A :: B; B :: C; C :: u8;`) converges too.
// Regression (issue 0069): the scan only registered identifier aliases whose
// target was already known, so a forward alias was falsely flagged
// `unknown type`. Now a fixpoint pass over the scanned decls resolves them.
#import "modules/std.sx";

MyChain :: MyInt;
MyInt   :: i32;

A :: B;
B :: C;
C :: u8;

main :: () -> i32 {
    v: MyChain = 7;
    n: A = 3;
    print("chain i32:   {}\n", size_of(MyChain));
    print("forward u8:  {}\n", size_of(A));
    print("v + n:       {}\n", v + cast(i32) n);
    return v;
}