com.github.tonivade.purefun.Consumer1 Maven / Gradle / Ivy

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/*
 * Copyright (c) 2018-2020, Antonio Gabriel Muñoz Conejo 
 * Distributed under the terms of the MIT License
 */
package com.github.tonivade.purefun;

import static com.github.tonivade.purefun.Unit.unit;

/**
 * This interface represents a function that receives a single parameter but it doesn't generate any result.
 * It's like a {@code Function1}
 * @param  the type of parameter received by the function
 */
@FunctionalInterface
public interface Consumer1 extends Recoverable {

  default void accept(A value) {
    try {
      run(value);
    } catch (Throwable t) {
      sneakyThrow(t);
    }
  }

  void run(A value) throws Throwable;

  default Function1 asFunction() {
    return value -> { accept(value); return unit(); };
  }

  default Consumer1 andThen(Consumer1 after) {
    return value -> { accept(value); after.accept(value); };
  }

  default Function1 peek() {
    return value -> { accept(value); return value; };
  }

  static  Consumer1 of(Consumer1 reference) {
    return reference;
  }

  static  Consumer1 noop() {
    return value -> { /* noop */ };
  }
}