JPratt/src/main/java/com/ashardalon/pratt/commands/impls/LeafCommand.java


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package com.ashardalon.pratt.commands.impls;

import com.ashardalon.pratt.ParserContext;
import com.ashardalon.pratt.commands.CommandResult;
import com.ashardalon.pratt.commands.InitialCommand;
import com.ashardalon.pratt.tokens.Token;

import bjc.data.SimpleTree;
import bjc.utils.parserutils.ParserException;

/**
 * A operator that stands for itself.
 *
 * @author bjculkin
 *
 * @param <K>
 *        The key type of the tokens.
 *
 * @param <V>
 *        The value type of the tokens.
 *
 * @param <C>
 *        The state type of the parser.
 */
public class LeafCommand<K, V, C> implements InitialCommand<K, V, C> {
	@Override
	public CommandResult<K, V> denote(final Token<K, V> operator, final ParserContext<K, V, C> ctx)
			throws ParserException {
		return CommandResult.success(new SimpleTree<>(operator));
	}
}