src/v8/test/mjsunit/regress/regress-709029.js

// Copyright 2017 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.

// Changes the map of obj.
function mutateObjectOnStringConversion(obj) {
  return { toString: () => { obj.x = 42;return "";}};
}

{
  const re = /./;
  re.exec(mutateObjectOnStringConversion(re));
}

{
  const re = /./;
  re.test(mutateObjectOnStringConversion(re));
}

{
  const re = /./;
  re[Symbol.match](mutateObjectOnStringConversion(re));
}

{
  const re = /./;
  re[Symbol.search](mutateObjectOnStringConversion(re));
}

{
  const re = /./;
  re[Symbol.split](mutateObjectOnStringConversion(re));
}

{
  const re = /./;
  re[Symbol.replace](mutateObjectOnStringConversion(re));
}