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// Copyright (C) 2024 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object-environment-records-setmutablebinding-n-v-s
description: >
Binding deleted when retrieving unscopables.
info: |
9.1.1.2.5 SetMutableBinding ( N, V, S )
1. Let bindingObject be envRec.[[BindingObject]].
2. Let stillExists be ? HasProperty(bindingObject, N).
3. If stillExists is false and S is true, throw a ReferenceError exception.
4. Perform ? Set(bindingObject, N, V, S).
...
flags: [noStrict]
features: [Symbol.unscopables]
includes: [propertyHelper.js]
---*/
var unscopablesCalled = 0;
var env = {
binding: 0,
get [Symbol.unscopables]() {
unscopablesCalled++;
delete env.binding;
return null;
}
};
with (env) {
binding = 123;
}
assert.sameValue(unscopablesCalled, 1, "get [Symbol.unscopables] called once");
verifyProperty(env, "binding", {
value: 123,
writable: true,
enumerable: true,
configurable: true,
});
reportCompare(0, 0);