mirror of
https://github.com/openjdk/jdk.git
synced 2026-01-28 12:09:14 +00:00
48 lines
1.8 KiB
Java
48 lines
1.8 KiB
Java
/*
|
|
* Copyright (c) 2024, 2025, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
package compiler.lib.generators;
|
|
|
|
import java.util.NavigableSet;
|
|
|
|
/**
|
|
* Selects values from a pre-defined list.
|
|
*/
|
|
final class RestrictableRandomElementGenerator<T extends Comparable<T>> extends RandomElementGenerator<T> implements RestrictableGenerator<T> {
|
|
/*
|
|
* Pre-generated values we can choose from. Maintained for restriction.
|
|
*/
|
|
private final NavigableSet<T> values;
|
|
|
|
public RestrictableRandomElementGenerator(Generators g, NavigableSet<T> values) {
|
|
super(g, values);
|
|
if (values.isEmpty()) throw new EmptyGeneratorException();
|
|
this.values = values;
|
|
}
|
|
|
|
@Override
|
|
public RestrictableGenerator<T> restricted(T newLo, T newHi) {
|
|
return new RestrictableRandomElementGenerator<>(g, values.subSet(newLo, true, newHi, true));
|
|
}
|
|
}
|