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 * This is free and unencumbered software released into the public domain.
 *
 * Anyone is free to copy, modify, publish, use, compile, sell, or
 * distribute this software, either in source code form or as a compiled
 * binary, for any purpose, commercial or non-commercial, and by any
 * means.
 *
 * In jurisdictions that recognize copyright laws, the author or authors
 * of this software dedicate any and all copyright interest in the
 * software to the public domain. We make this dedication for the benefit
 * of the public at large and to the detriment of our heirs and
 * successors. We intend this dedication to be an overt act of
 * relinquishment in perpetuity of all present and future rights to this
 * software under copyright law.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * For more information, please refer to <http://unlicense.org/>
 */

package java.util.function;

import java.util.Objects;

/**
 * Represents an operation that accepts a single {@code char}-valued argument and
 * returns no result. This is the primitive type specialization of
 * {@link Consumer} for {@code char}. Unlike most other functional interfaces,
 * {@code CharConsumer} is expected to operate via side-effects.
 * <p>
 * This is a <a href="package-summary.html">functional interface</a>
 * whose functional method is {@link #accept(char)}.
 *
 * @see Consumer
 * @author AqD
 */
@FunctionalInterface
public interface CharConsumer {

    /**
     * Performs this operation on the given argument.
     *
     * @param value the input argument
     */
    void accept(char value);

    /**
     * Returns a composed {@code CharConsumer} that performs, in sequence, this
     * operation followed by the {@code after} operation. If performing either
     * operation throws an exception, it is relayed to the caller of the
     * composed operation. If performing this operation throws an exception,
     * the {@code after} operation will not be performed.
     *
     * @param after the operation to perform after this operation
     * @return a composed {@code CharConsumer} that performs in sequence this
     *         operation followed by the {@code after} operation
     * @throws NullPointerException if {@code after} is null
     */
    default CharConsumer andThen(CharConsumer after) {
        Objects.requireNonNull(after);
        return (char t) -> {
            accept(t);
            after.accept(t);
        };
    }
}