Function testStackOverflow

deps/v8/test/mjsunit/iterable-foreach.js:103–144

()

// Stack overflow
function testStackOverflow() {
  let iterable = {
    [Symbol.iterator]() {
      return {
        next() { return { value: 1, done: false }; },
        return() { return { done: true }; }
      };
    }
  };

  let infiniteIterable = {
      [Symbol.iterator]() {
          return {
              next() { return { value: 1, done: false }; },
              return() { return { done: true }; } // Should be called
          }
      }
  };

  let returnCalled = false;
  let recursiveIterable = {
      [Symbol.iterator]() {
          return {
              next() { return { value: 1, done: false }; },
              return() {
                  returnCalled = true;
                  return { done: true };
              }
          }
      }
  };

  try {
      function recurse(x) {
          recurse(x);
      }
      %IterableForEach(recursiveIterable, recurse);
  } catch(e) {
      assertInstanceof(e, RangeError);
  }
  assertTrue(returnCalled, "Iterator.return() should be called on stack overflow");
}
testStackOverflow();

// Next method throws -> Exception propagates, iterator NOT closed