/*
 [The "BSD license"]
  Copyright (c) 2011 Terence Parr
  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:

  1. Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.
  3. The name of the author may not be used to endorse or promote products
     derived from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.antlr.v4.runtime.tree;

import org.antlr.v4.runtime.Parser;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.misc.Interval;

public class TerminalNodeImpl implements TerminalNode {
	public Token symbol;
	public ParseTree parent;

	public TerminalNodeImpl(Token symbol) {	this.symbol = symbol;	}

	@Override
	public ParseTree getChild(int i) {return null;}

	@Override
	public Token getSymbol() {return symbol;}

	@Override
	public ParseTree getParent() { return parent; }

	@Override
	public Token getPayload() { return symbol; }

	@Override
	public Interval getSourceInterval() {
		if ( symbol ==null ) return Interval.INVALID;

		int tokenIndex = symbol.getTokenIndex();
		return new Interval(tokenIndex, tokenIndex);
	}

	@Override
	public int getChildCount() { return 0; }

	@Override
	public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
		return visitor.visitTerminal(this);
	}

	@Override
	public String getText() { return symbol.getText(); }

	@Override
	public String toStringTree(Parser parser) {
		return toString();
	}

	public boolean isErrorNode() { return this instanceof ErrorNode; }

	@Override
	public String toString() {
			if ( symbol.getType() == Token.EOF ) return "<EOF>";
			return symbol.getText();
	}

	@Override
	public String toStringTree() {
		return toString();
	}
}

/*
 [The "BSD license"]
  Copyright (c) 2011 Terence Parr
  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:

  1. Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.
  3. The name of the author may not be used to endorse or promote products
     derived from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.antlr.v4.runtime.tree;

import org.antlr.v4.runtime.Parser;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.misc.Interval;

public class TerminalNodeImpl implements TerminalNode {
	public Token symbol;
	public ParseTree parent;

	public TerminalNodeImpl(Token symbol) {	this.symbol = symbol;	}

	@Override
	public ParseTree getChild(int i) {return null;}

	@Override
	public Token getSymbol() {return symbol;}

	@Override
	public ParseTree getParent() { return parent; }

	@Override
	public Token getPayload() { return symbol; }

	@Override
	public Interval getSourceInterval() {
		if ( symbol ==null ) return Interval.INVALID;

		int tokenIndex = symbol.getTokenIndex();
		return new Interval(tokenIndex, tokenIndex);
	}

	@Override
	public int getChildCount() { return 0; }

	@Override
	public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
		return visitor.visitTerminal(this);
	}

	@Override
	public String getText() { return symbol.getText(); }

	@Override
	public String toStringTree(Parser parser) {
		return toString();
	}

	@Override
	public String toString() {
			if ( symbol.getType() == Token.EOF ) return "<EOF>";
			return symbol.getText();
	}

	@Override
	public String toStringTree() {
		return toString();
	}
}

Remove unused method TerminalNodeImpl.isErrorNode