com.github.tonivade.purefun.CheckedFunction2 Maven / Gradle / Ivy

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/*
 * Copyright (c) 2018-2019, Antonio Gabriel Muñoz Conejo 
 * Distributed under the terms of the MIT License
 */
package com.github.tonivade.purefun;

@FunctionalInterface
public interface CheckedFunction2 extends Recoverable {

  R apply(A a, B b) throws Throwable;

  default CheckedFunction1> curried() {
    return a -> b -> apply(a, b);
  }

  default CheckedFunction1, R> tupled() {
    return tuple -> apply(tuple.get1(), tuple.get2());
  }

  default  CheckedFunction2 andThen(CheckedFunction1 after) {
    return (a, b) -> after.apply(apply(a, b));
  }

  default  CheckedFunction1 compose(CheckedFunction1 beforeA, CheckedFunction1 beforeB) {
    return value -> apply(beforeA.apply(value), beforeB.apply(value));
  }

  default Function2 unchecked() {
    return recover(this::sneakyThrow);
  }

  default Function2 recover(Function1 mapper) {
    return (a, b) -> {
      try {
        return apply(a, b);
      } catch(Throwable e) {
        return mapper.apply(e);
      }
    };
  }

  static  CheckedFunction2 of(CheckedFunction2 reference) {
    return reference;
  }
}