blob: 627b063fc5c4aa9de18c2a64c2364f89e71659da [file] [log] [blame]
// Copyright (c) 2017, 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.
/// @assertion SplayTreeMap([int compare(K key1, K key2),
/// bool isValidKey(potentialKey)])
/// If the [compare] function is omitted, the objects are assumed to be
/// [Comparable], and are compared using their [Comparable.compareTo] method.
/// Non-comparable objects (including [null]) will not work as keys in that case.
/// @description Checks that if [compare] method is specified then
/// [Comparable.compareTo] is ignored during the comparison in [SplayTreeMap].
/// @author
import "dart:collection";
import "../../../Utils/expect.dart";
int compare(var key1, var key2) {
return -1;
class C implements Comparable{
int value;
int compareTo(Object? other) {
return this.value - (other as C).value;
main() {
SplayTreeMap map = new SplayTreeMap(compare);
C c1 = new C(1);
C c2 = new C(1);
map[c1] = 1;