test262/src/dstr-binding/obj-ptrn-prop-ary-init.case

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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
template: default
desc: Object binding pattern with "nested" array binding pattern using initializer
info: |
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
a. Let defaultValue be the result of evaluating Initializer.
b. Let v be GetValue(defaultValue).
c. ReturnIfAbrupt(v).
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
---*/
//- elems
{ w: [x, y, z] = [4, 5, 6] }
//- vals
{}
//- body
assert.sameValue(x, 4);
assert.sameValue(y, 5);
assert.sameValue(z, 6);
assert.throws(ReferenceError, function() {
w;
});