carbon-lang/explorer/testdata/experimental_continuation/shallow_copy.carbon

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// AUTOUPDATE
// RUN: %{explorer-run}
// RUN: %{explorer-run-trace}
// CHECK:STDOUT: result: 3

package ExplorerTest api;

// Assignment for continuations is shallow, so `k2` refers to the same
// continuation as `k1`.

var x: i32 = 0;

fn Foo() {
  x = x + 1;
  __await;
  x = x + 2;
}

fn Main() -> i32 {
  __continuation k1 {
    Foo();
  }
  var k2: __Continuation = k1;
  __run k1;
  __run k2;
  return x;
}