package net.minecraft.world.item;

import it.unimi.dsi.fastutil.Hash.Strategy;
import it.unimi.dsi.fastutil.objects.ObjectLinkedOpenCustomHashSet;
import java.util.Set;
import org.jetbrains.annotations.Nullable;

public class ItemStackLinkedSet {
	private static final Strategy<? super ItemStack> TYPE_AND_TAG = new Strategy<ItemStack>() {
		public int hashCode(@Nullable ItemStack stack) {
			return ItemStack.hashItemAndComponents(stack);
		}

		public boolean equals(@Nullable ItemStack first, @Nullable ItemStack second) {
			return first == second || first != null && second != null && first.isEmpty() == second.isEmpty() && ItemStack.isSameItemSameComponents(first, second);
		}
	};

	public static Set<ItemStack> createTypeAndComponentsSet() {
		return new ObjectLinkedOpenCustomHashSet<>(TYPE_AND_TAG);
	}
}