#import "modules/std.sx";
#import "modules/math";
#import "modules/build.sx";
#import "modules/std/test.sx";
pkg :: #import "tests/fixtures/testpkg";

main :: () {

    // === 26. #using struct composition ===
    print("=== 26. #using ===\n");
    {
        UBase :: struct { x: s32; y: s32; }
        UExt :: struct { #using UBase; z: s32; }
        e := UExt.{ x = 1, y = 2, z = 3 };
        print("using-x: {}\n", e.x);
        print("using-y: {}\n", e.y);
        print("using-z: {}\n", e.z);

        // #using in middle position
        UHeader :: struct { version: s32; }
        UPacket :: struct { id: s32; #using UHeader; payload: s32; }
        p := UPacket.{ id = 10, version = 42, payload = 99 };
        print("pkt-id: {}\n", p.id);
        print("pkt-ver: {}\n", p.version);
        print("pkt-pay: {}\n", p.payload);

        // Multiple #using
        UPos :: struct { px: s32; py: s32; }
        UCol :: struct { r: s32; g: s32; }
        USprite :: struct { #using UPos; #using UCol; scale: s32; }
        s := USprite.{ px = 10, py = 20, r = 255, g = 128, scale = 1 };
        print("sprite-px: {}\n", s.px);
        print("sprite-r: {}\n", s.r);
        print("sprite-scale: {}\n", s.scale);
    }

    // --- Comptime format ---
    {
        ct_body :: "hello";
        ct_msg :: format("say: {} (len={})", ct_body, ct_body.len);
        print("{}\n", ct_msg);

        ct_num :: 42;
        ct_num_msg :: format("n={}", ct_num);
        print("{}\n", ct_num_msg);
    }
}