v8/test/mjsunit/es6/block-scoping-top-level.js

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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
'use strict';
let xxx = 1;
let f = undefined;
{
let inner_x = xxx;
f = function() { return inner_x; };
}
assertSame(1, f());
xxx = 42;
{
f = function() { return inner_x1; };
let inner_x1 = xxx;
}
assertSame(42, f());
xxx = 31;
{
let inner_x1 = xxx;
try {
throw new Error();
} catch (e) {
f = function() { return inner_x1; };
}
}
assertSame(31, f());