Code/net/minecraft/nbt/visitors/SkipFields.java

package net.minecraft.nbt.visitors;

import java.util.ArrayDeque;
import java.util.Deque;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.nbt.StreamTagVisitor;
import net.minecraft.nbt.TagType;

public class SkipFields extends CollectToTag {
    private final Deque<FieldTree> stack = new ArrayDeque<>();

    public SkipFields(FieldSelector... p_202549_) {
        FieldTree fieldtree = FieldTree.createRoot();

        for (FieldSelector fieldselector : p_202549_) {
            fieldtree.addEntry(fieldselector);
        }

        this.stack.push(fieldtree);
    }

    @Override
    public StreamTagVisitor.EntryResult visitEntry(TagType<?> p_202551_, String p_202552_) {
        FieldTree fieldtree = this.stack.element();
        if (fieldtree.isSelected(p_202551_, p_202552_)) {
            return StreamTagVisitor.EntryResult.SKIP;
        } else {
            if (p_202551_ == CompoundTag.TYPE) {
                FieldTree fieldtree1 = fieldtree.fieldsToRecurse().get(p_202552_);
                if (fieldtree1 != null) {
                    this.stack.push(fieldtree1);
                }
            }

            return super.visitEntry(p_202551_, p_202552_);
        }
    }

    @Override
    public StreamTagVisitor.ValueResult visitContainerEnd() {
        if (this.depth() == this.stack.element().depth()) {
            this.stack.pop();
        }

        return super.visitContainerEnd();
    }
}