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Java 11 compatible extensions allowing to use checked exceptions in functional programming APIs + Try interface

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/*
 * MIT License
 *
 * Copyright (c) 2020 Roman Khlebnov
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * 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 OR COPYRIGHT HOLDERS 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.
 */

package io.github.suppierk.java.util.function;

import io.github.suppierk.java.util.ExceptionSuppressor;
import java.util.function.Function;
import java.util.function.ToLongFunction;

/**
 * Represents a function that produces a long-valued result. This is the {@code long}-producing
 * primitive specialization for {@link Function}.
 *
 * 

Permits checked exceptions unlike {@link ToLongFunction} * *

This is a functional interface whose functional method is * {@link #applyAsLong(Object)}. * * @param the type of the input to the function * @see Function */ @FunctionalInterface @SuppressWarnings("squid:S112") public interface ThrowableToLongFunction extends ToLongFunction { /** * Applies this function to the given argument. * * @param value the function argument * @return the function result * @throws Throwable occurred during processing */ long applyAsLongUnsafe(T value) throws Throwable; /** * Applies this function to the given argument. * * @param value the function argument * @return the function result */ @Override default long applyAsLong(T value) { try { return applyAsLongUnsafe(value); } catch (Throwable throwable) { return ExceptionSuppressor.asUnchecked(throwable); } } }





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