iOS lock step keyboard + metal

examples/97-objc-block-inline.sx

@@ -0,0 +1,19 @@
+// `xx <closure>` passed as a `*Block` fn argument auto-allocates the
+// Block instance and passes its address — no named temp required.
+// Matches the ergonomics of ObjC's `^{...}` literal at the call site.
+
+#import "modules/std.sx";
+#import "modules/std/objc_block.sx";
+
+invoke_once :: (b: *Block) {
+  invoke_fn : (*Block) -> void = xx b.invoke;
+  invoke_fn(b);
+}
+
+main :: () -> s32 {
+  x : s64 = 7;
+  invoke_once(xx () => {
+    print("inline block, x = {}\n", x);
+  });
+  0;
+}