net.sandius.rembulan.exec.OneShotContinuation Maven / Gradle / Ivy
/*
* Copyright 2016 Miroslav Janíček
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sandius.rembulan.exec;
/**
* A one-shot continuation, i.e., a continuation that may be resumed at most once.
*/
public interface OneShotContinuation extends Continuation {
/**
* Returns {@code true} if this continuation is current, i.e., can be resumed.
*
* In other words, returns {@code false} if an attempt to resume the continuation
* would throw a {@link InvalidContinuationException}.
*
* @return {@code true} if this continuation is valid, {@code false} otherwise
*/
boolean isCurrent();
}