974ab4060f
PR-URL: https://github.com/nodejs/node/pull/41610 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
21 lines
712 B
JavaScript
21 lines
712 B
JavaScript
// Copyright 2021 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: --allow-natives-syntax
|
|
|
|
function test() {}
|
|
function foo() {
|
|
// --test() will throw a ReferenceError, making the rest of the for-of loop
|
|
// dead. The destructuring assignment is still part of the same expression,
|
|
// and it generates a try-finally for its iteration, so if it isn't fully
|
|
// eliminated the finally block may resurrect the destructuring assignment
|
|
// loop.
|
|
for (let [x] of --test()) {}
|
|
}
|
|
|
|
%PrepareFunctionForOptimization(foo);
|
|
try { foo() } catch {}
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
try { foo() } catch {}
|