Comma expressions fwiw

std/assembly/array.ts

@@ -38,3 +38,22 @@ export class Array<T> {
 
   // TODO
 }
+
+@global
+@struct
+export class CArray<T> {
+
+  private constructor() {}
+
+  @operator("[]")
+  get(index: i32): T {
+    assert(index >= 0);
+    return load<T>(index * sizeof<T>());
+  }
+
+  @operator("[]=")
+  set(index: i32, value: T): void {
+    assert(index >= 0);
+    store<T>(index * sizeof<T>(), value);
+  }
+}