// Copyright 2010 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
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//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Flags: --expose-externalize-string --expose-gc

function test() {
  assertEquals("0123", "aa0bb1cc2dd3".replace(/[a-z]/g, ""));
  assertEquals("0123", "\u1234a0bb1cc2dd3".replace(/[\u1234a-z]/g, ""));

  var expected = "0123";
  var cons = "a0b1c2d3";
  for (var i = 0; i < 5; i++) {
    expected += expected;
    cons += cons;
  }
  assertEquals(expected, cons.replace(/[a-z]/g, ""));
  cons = "\u12340b1c2d3";
  for (var i = 0; i < 5; i++) {
    cons += cons;
  }
  assertEquals(expected, cons.replace(/[\u1234a-z]/g, ""));

  var expected_two_byte = "0123🤓"
  cons = "a0b1c2d3🤓";
  for (var i = 0; i < 5; i++) {
    expected_two_byte += expected_two_byte;
    cons += cons;
  }
  externalizeString(createExternalizableString(cons));
  assertEquals(expected_two_byte, cons.replace(/[a-z]/g, ""));
  cons = "\u12340b1c2d3";
  for (var i = 0; i < 5; i++) {
    cons += cons;
  }
  externalizeString(createExternalizableString(cons));
  assertEquals(expected, cons.replace(/[\u1234a-z]/g, ""));
}

test();

// Clear the regexp cache to allow the GC to work.
"foo".replace(/foo/g, "");

// GC in order to free up things on the C side so we don't get
// a memory leak.  This makes valgrind happy.
gc();
gc();