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;
});