CheckedBiFunction.java

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/*-
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 * #%L
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 * io.earcam.unexceptional
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 * %%
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 * Copyright (C) 2016 - 2017 earcam
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 * %%
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 * SPDX-License-Identifier: (BSD-3-Clause OR EPL-1.0 OR Apache-2.0 OR MIT)
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 *
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 * You <b>must</b> choose to accept, in full - any individual or combination of
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 * the following licenses:
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 * <ul>
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 * 	<li><a href="https://opensource.org/licenses/BSD-3-Clause">BSD-3-Clause</a></li>
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 * 	<li><a href="https://www.eclipse.org/legal/epl-v10.html">EPL-1.0</a></li>
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 * 	<li><a href="https://www.apache.org/licenses/LICENSE-2.0">Apache-2.0</a></li>
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 * 	<li><a href="https://opensource.org/licenses/MIT">MIT</a></li>
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 * </ul>
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 * #L%
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 */
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package io.earcam.unexceptional;
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import java.util.Objects;
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/**
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 * A checked parallel of {@link java.util.function.BiFunction}
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 *
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 * @param <T> first argument type
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 * @param <U> second argument type
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 * @param <R> return type
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 *
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 * @since 0.2.0
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 *
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 * @see java.util.function.BiFunction
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 */
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@FunctionalInterface
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public interface CheckedBiFunction<T, U, R, E extends Throwable> {
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	/**
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	 * See {@link java.util.function.BiFunction#apply(Object, Object)}
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	 *
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	 * @param t first argument.
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	 * @param u second argument.
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	 * @return result of applying {@code this} function.
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	 * @throws Throwable a possible checked exception
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	 */
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	public abstract R apply(T t, U u) throws E;
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	/**
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	 * See {@link java.util.function.BiFunction#andThen(java.util.function.Function)}
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	 *
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	 * @param <V> the return type of the {@code after} parameter
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	 *
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	 * @param after the {@link CheckedFunction} to be chained (taking result of {@code this} as argument)
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	 * @return the composite {@link CheckedBiFunction}
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	 * @throws NullPointerException if {@code after} is {@code null}
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	 */
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	public default <V> CheckedBiFunction<T, U, V, E> andThen(CheckedFunction<? super R, ? extends V, ? extends E> after)
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	{
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		Objects.requireNonNull(after);
60 2 1. andThen : mutated return of Object value for io/earcam/unexceptional/CheckedBiFunction::andThen to ( if (x != null) null else throw new RuntimeException ) → KILLED
2. lambda$andThen$82231ee7$1 : mutated return of Object value for io/earcam/unexceptional/CheckedBiFunction::lambda$andThen$82231ee7$1 to ( if (x != null) null else throw new RuntimeException ) → KILLED
 
		return (CheckedBiFunction<T, U, V, E> & java.io.Serializable) (T t, U u) -> after.apply(apply(t, u));
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	}
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}

Mutations

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1.1
Location : andThen
Killed by : io.earcam.unexceptional.CheckedBiFunctionTest.andThenChains() mutated return of Object value for io/earcam/unexceptional/CheckedBiFunction::andThen to ( if (x != null) null else throw new RuntimeException ) → KILLED

2.2
Location : lambda$andThen$82231ee7$1
Killed by : io.earcam.unexceptional.CheckedBiFunctionTest.andThenChains() mutated return of Object value for io/earcam/unexceptional/CheckedBiFunction::lambda$andThen$82231ee7$1 to ( if (x != null) null else throw new RuntimeException ) → KILLED

Active mutators

Tests examined


Report generated by PIT 1.4.0