/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
module hunt.pool.impl.NoOpCallStack;

import hunt.pool.impl.CallStack;
import hunt.stream.Writer;

/**
 * CallStack strategy using no-op implementations of all functionality. Can be used by default when abandoned object
 * logging is disabled.
 *
 */
class NoOpCallStack : CallStack {

    /**
     * Singleton instance.
     */
    __gshared CallStack INSTANCE; // = new NoOpCallStack();

    shared static this() {
        INSTANCE = new NoOpCallStack();
    }

    private this() {
    }

    bool printStackTrace(Writer writer) {
        return false;
    }

    void fillInStackTrace() {
        // no-op
    }

    override
    void clear() {
        // no-op
    }
}