v8/test/mjsunit/harmony/default-parameter-do-expression.js

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// Copyright 2016 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.
// Flags: --harmony-do-expressions --nolazy
function hoist_unique_do_var() {
var f = (y = do { var unique = 3 }) => unique;
assertEquals(3, f());
assertThrows(() => unique, ReferenceError);
}
hoist_unique_do_var();
function hoist_duplicate_do_var() {
var duplicate = 100;
var f = (y = do { var duplicate = 3 }) => duplicate;
assertEquals(3, f());
// TODO(verwaest): The {duplicate} declarations were invalidly merged.
assertEquals(3, duplicate);
}
hoist_duplicate_do_var();