blob: c630609838ca4b7cccf302b012afdfd0b6ee280d [file] [log] [blame]
// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// @dart = 2.9
// VMOptions=--no-enable-fast-object-copy
// VMOptions=--enable-fast-object-copy
// Verifies that large BigInt can be passed through a message port and
// simple arithmetic operations still work after that.
// This is a regression test for https://github.com/dart-lang/sdk/issues/34752.
import 'dart:io';
import 'dart:isolate';
import "package:expect/expect.dart";
const int kValue = 12345678;
const int kShift = 8192 * 8;
void verify(BigInt x) {
BigInt y = x >> kShift;
Expect.equals("$kValue", "$y");
}
void main() {
BigInt big = BigInt.from(kValue) << kShift;
verify(big);
final rp = new ReceivePort();
rp.listen((dynamic data) {
BigInt received = data as BigInt;
verify(received);
BigInt x = received + BigInt.one - BigInt.one;
verify(x);
print("ok");
exit(0);
});
rp.sendPort.send(big);
}