test/language/expressions/async-generator/yield-identifier-spread-strict.js


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// This file was procedurally generated from the following sources:
// - src/async-generators/yield-identifier-spread-strict.case
// - src/async-generators/default/async-expression.template
/*---
description: It's an early error if the AssignmentExpression is a function body with yield as an identifier in strict mode. (Unnamed async generator expression)
esid: prod-AsyncGeneratorExpression
features: [object-spread, async-iteration]
flags: [generated, onlyStrict]
negative:
  phase: parse
  type: SyntaxError
info: |
    Async Generator Function Definitions

    AsyncGeneratorExpression :
      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
        AsyncGeneratorBody }


    Spread Properties

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

---*/
throw "Test262: This statement should not be evaluated.";


var callCount = 0;

var gen = async function *() {
  callCount += 1;
  return {
       ...(function() {
          var yield;
          throw new Test262Error();
       }()),
    }
};

var iter = gen();


assert.sameValue(callCount, 1);