yield-spread-arr-multiple.js

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// This file was procedurally generated from the following sources:

// - src/generators/yield-spread-arr-multiple.case

// - src/generators/default/expression.template

/*---

description: Use yield value in a array spread position (Unnamed generator expression)

esid: prod-GeneratorExpression

features: [generators]

flags: [generated]

includes: [compareArray.js]

info: |

    14.4 Generator Function Definitions

    GeneratorExpression:

      function * BindingIdentifier opt ( FormalParameters ) { GeneratorBody }

    Array Initializer

    SpreadElement[Yield, Await]:

      ...AssignmentExpression[+In, ?Yield, ?Await]

---*/

var arr = ['a', 'b', 'c'];

var item;

var callCount = 0;

var gen = function *() {

  callCount += 1;

  yield [...yield yield];

};

var iter = gen();

iter.next(false);

item = iter.next(['a', 'b', 'c']);

item = iter.next(item.value);

assert.compareArray(item.value, arr);

assert.sameValue(item.done, false);

assert.sameValue(callCount, 1);

reportCompare(0, 0);