test262/test/language/expressions/async-generator/forbidden-ext-indirect-access-prop-caller.js
2020-09-22 10:37:38 -04:00

39 lines
1.4 KiB
JavaScript

// This file was procedurally generated from the following sources:
// - src/function-forms/forbidden-ext-indirect-access-prop-caller.case
// - src/function-forms/forbidden-extensions/bullet-two/async-gen-func-expr.template
/*---
description: Forbidden extension, o.caller (async generator function expression)
esid: sec-asyncgenerator-definitions-evaluation
features: [async-iteration]
flags: [generated, noStrict, async]
info: |
AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
AsyncGeneratorBody }
If an implementation extends any function object with an own property named "caller" the value of that property, as observed using [[Get]] or [[GetOwnProperty]], must not be a strict function object. If it is an accessor property, the function that is the value of the property's [[Get]] attribute must never return a strict function when called.
---*/
function inner() {
// This property is forbidden from having a value that is strict function object
return inner.caller;
}
var callCount = 0;
var f;
f = async function*() {
"use strict";
inner().toString();
callCount = callCount + 1;
};
f().next()
.then(_ => {
throw new Test262Error('function should not be resolved');
}, error => assert.sameValue(error.constructor, TypeError))
.then(() => {
assert.sameValue(callCount, 0, 'function body is not evaluated');
}, $DONE)
.then($DONE, $DONE);