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With inspiration from other libraries

There is a newer version: 2.12.15

/*
 * Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
 * Use of this file is governed by the BSD 3-clause license that
 * can be found in the LICENSE.txt file in the project root.
 */

package org.antlr.v4.tool.ast;

import org.antlr.runtime.Token;
import org.antlr.v4.tool.AttributeResolver;

import java.util.List;

public class ActionAST extends GrammarASTWithOptions implements RuleElementAST {
    // Alt, rule, grammar space
    public AttributeResolver resolver;
	public List chunks; // useful for ANTLR IDE developers

	public ActionAST(ActionAST node) {
		super(node);
		this.resolver = node.resolver;
		this.chunks = node.chunks;
	}

	public ActionAST(Token t) { super(t); }
    public ActionAST(int type) { super(type); }
    public ActionAST(int type, Token t) { super(type, t); }

	@Override
	public ActionAST dupNode() { return new ActionAST(this); }

	@Override
	public Object visit(GrammarASTVisitor v) { return v.visit(this); }
}