Function test

deps/v8/test/mjsunit/es6/destructuring-assignment.js:246–258

(value, initializer, expected)

(function testArrayElementInitializer() {
  function test(value, initializer, expected) {
    var a, obj = {};
    var initialized = false;
    var shouldBeInitialized = value[0] === undefined;
    assertEquals(value, [ a = (initialized = true, initializer) ] = value);
    assertEquals(expected, a);
    assertEquals(shouldBeInitialized, initialized);

    var initialized2 = false;
    assertEquals(value, [ obj.a = (initialized2 = true, initializer) ] = value);
    assertEquals(expected, obj.a);
    assertEquals(shouldBeInitialized, initialized2);
  }

  test([], "BAM!", "BAM!");
  test([], "BOOP!", "BOOP!");