com.github.tonivade.purefun.With 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 java.util.Objects.requireNonNull;

import java.util.Objects;

public final class With {

  private static final Equal> EQUAL = Equal.>of().comparing(With::get);

  private final A value;

  private With(A value) {
    this.value = requireNonNull(value);
  }

  public A get() {
    return value;
  }

  public void end(Consumer1 consumer) {
     consumer.accept(value);
  }

  public  With then(Function1 function) {
    return with(function.apply(value));
  }

  public  With then(Function2 function, B b) {
    return with(function.apply(value, b));
  }

  public  With then(Function3 function, B b, C c) {
    return with(function.apply(value, b, c));
  }

  public  With then(Function4 function, B b, C c, D d) {
    return with(function.apply(value, b, c, d));
  }

  public  With then(Function5 function, B b, C c, D d, E e) {
    return with(function.apply(value, b, c, d, e));
  }

  @Override
  public int hashCode() {
    return Objects.hash(value);
  }

  @Override
  public boolean equals(Object obj) {
    return EQUAL.applyTo(this, obj);
  }

  public static  With with(T value) {
    return new With<>(value);
  }
}