mirror of https://github.com/tc39/test262.git
34 lines
850 B
JavaScript
34 lines
850 B
JavaScript
// Copyright 2015 Mike Pennisi. All rights reserved.
|
||
// This code is governed by the BSD license found in the LICENSE file.
|
||
|
||
/*---
|
||
es6id: 8.1.1.2.1
|
||
description: >
|
||
Behavior when accessing `Symbol.unscopables` property value throws an error
|
||
info: >
|
||
[...]
|
||
6. If the withEnvironment flag of envRec is false, return true.
|
||
7. Let unscopables be Get(bindings, @@unscopables).
|
||
8. ReturnIfAbrupt(unscopables).
|
||
|
||
ES6: 13.11.7 (The `with` Statement) Runtime Semantics: Evaluation
|
||
[...]
|
||
6. Set the withEnvironment flag of newEnv’s EnvironmentRecord to true.
|
||
[...]
|
||
flags: [noStrict]
|
||
features: [Symbol.unscopables]
|
||
---*/
|
||
|
||
var env = { x: 86 };
|
||
Object.defineProperty(env, Symbol.unscopables, {
|
||
get: function() {
|
||
throw new Test262Error();
|
||
}
|
||
});
|
||
|
||
with (env) {
|
||
assert.throws(Test262Error, function() {
|
||
void x;
|
||
});
|
||
}
|