wasm shell + destructuring

examples/50-smoke.sx

@@ -296,6 +296,13 @@ Builder :: struct {
     }
 }
 
+// Global variable for address-of test
+g_smoke_val : s32 = 42;
+
+write_to_ptr :: (p: *s32) {
+    p.* = 99;
+}
+
 main :: () {
 
     // ========================================================
@@ -724,6 +731,10 @@ END;
     print("str-suffix: {}\n", msg[6..]);
 
     // --- Pointers ---
+    // Address-of global variable
+    write_to_ptr(@g_smoke_val);
+    print("global-addr-of: {}\n", g_smoke_val);
+
     pv := Point.{ 10, 20 };
     ptr := @pv;
     print("deref: {}\n", ptr.*);
@@ -750,6 +761,13 @@ END;
     print("ptr2==null: {}\n", np2 == null);
     print("ptr2!=null: {}\n", np2 != null);
 
+    // Pointer to nested struct field
+    Inner3 :: struct { a: f32; b: f32; c: f32; }
+    Outer3 :: struct { key: s32; inner: Inner3; }
+    out3 := Outer3.{ key = 42, inner = Inner3.{ a = 1.0, b = 2.0, c = 3.0 } };
+    ip3 := @out3.inner;
+    print("ptr-nested-field: {} {} {}\n", ip3.a, ip3.b, ip3.c);
+
     // --- Vectors ---
     vc := vec3(1, 3, 2);
     print("vec-construct: {}\n", vc);
@@ -1291,6 +1309,34 @@ END;
         print("3-way: {} {} {}\n", ra, rb, rc);
     }
 
+    // --- Tuple destructuring ---
+    print("--- destructure ---\n");
+
+    // Basic tuple destructuring
+    {
+        da, db := (10, 20);
+        print("basic: {} {}\n", da, db);
+    }
+
+    // Destructure from function return
+    {
+        dswap :: (a: s64, b: s64) -> (s64, s64) { (b, a); }
+        dx, dy := dswap(1, 2);
+        print("fn: {} {}\n", dx, dy);
+    }
+
+    // Discard with _
+    {
+        _, dsecond := (100, 200);
+        print("discard: {}\n", dsecond);
+    }
+
+    // Three elements
+    {
+        da3, db3, dc3 := (1, 2, 3);
+        print("triple: {} {} {}\n", da3, db3, dc3);
+    }
+
     // ========================================================
     // 15. FOREIGN FUNCTION BINDING
     // ========================================================