test262/test/language/expressions/class/async-gen-method-yield-spread-obj.js

// This file was procedurally generated from the following sources:
// - src/async-generators/yield-spread-obj.case
// - src/async-generators/default/async-class-expr-method.template
/*---
description: Use yield value in a object spread position (Async generator method as a ClassExpression element)
esid: prod-AsyncGeneratorMethod
features: [object-spread, async-iteration]
flags: [generated, async]
includes: [compareArray.js]
info: |
    ClassElement :
      MethodDefinition

    MethodDefinition :
      AsyncGeneratorMethod

    Async Generator Function Definitions

    AsyncGeneratorMethod :
      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }


    Spread Properties

    PropertyDefinition[Yield]:
      (...)
      ...AssignmentExpression[In, ?Yield]

---*/


var callCount = 0;

var C = class { async *gen() {
    callCount += 1;
    yield {
        ...yield,
        y: 1,
        ...yield yield,
      };
}}

var gen = C.prototype.gen;

var iter = gen();

iter.next();
iter.next({ x: 42 });
iter.next({ x: 'lol' });
var item = iter.next({ y: 39 });

item.then(({ done, value }) => {
  assert.sameValue(value.x, 42);
  assert.sameValue(value.y, 39);
  assert.sameValue(Object.keys(value).length, 2);
  assert.sameValue(done, false);
}).then($DONE, $DONE);

assert.sameValue(callCount, 1);