// Assigning a struct LITERAL to a named-struct member of a plain `union`.
// `u.b = .{ code = 9 }` types the literal as the union member's struct type
// `S` and stores it — the target type propagates to a union-member lvalue
// exactly as it does to a struct field.
//
// Regression (issue 0133): the literal used to lower as `.unresolved` (the
// target-type path only inspected struct fields, not union members) and trip
// the LLVM-emission tripwire in emitStructInit.

#import "modules/std.sx";

S :: struct { code: i64; }
U :: union { a: i64; b: S; }

main :: () {
    u : U = ---;
    u.b = .{ code = 9 };          // union member <- struct literal
    print("code={}\n", u.b.code); // 9

    u.a = 5;                      // scalar member still works
    print("a={}\n", u.a);         // 5
}