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package cn.nukkit.utils.functional;

import cn.nukkit.api.PowerNukkitOnly;
import cn.nukkit.api.Since;

import java.util.Objects;
import java.util.function.Function;

/**
 * Represents a function that accepts three arguments and produces a result.
 * This is the three-arity specialization of {@link Function}.
 *
 * 

This is a functional interface * whose functional method is {@link #apply(Object, Object, Object)}. * * @param the type of the first argument to the function * @param the type of the second argument to the function * @param the type of the third argument to the function * @param the type of the result of the function * @see Function * @since 1.4.0.0-PN */ @PowerNukkitOnly @Since("1.4.0.0-PN") @FunctionalInterface public interface TriFunction { /** * Applies this function to the given arguments. * * @param f the first function argument * @param s the second function argument * @param t the third function argument * @return the function result */ @PowerNukkitOnly @Since("1.4.0.0-PN") R apply(F f, S s, T t); /** * Returns a composed function that first applies this function to * its input, and then applies the {@code after} function to the result. * If evaluation of either function throws an exception, it is relayed to * the caller of the composed function. * * @param the type of output of the {@code after} function, and of the * composed function * @param after the function to apply after this function is applied * @return a composed function that first applies this function and then * applies the {@code after} function * @throws NullPointerException if after is null */ @PowerNukkitOnly @Since("1.4.0.0-PN") default TriFunction andThen(Function after) { Objects.requireNonNull(after); return (F f, S s, T t) -> after.apply(apply(f, s, t)); } }





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