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package bjc.pratt.commands.impls;
import bjc.pratt.ParserContext;
import bjc.pratt.commands.BinaryPostCommand;
import bjc.pratt.commands.CommandResult;
import bjc.pratt.tokens.Token;
import bjc.data.Tree;
import bjc.data.SimpleTree;
import bjc.utils.parserutils.ParserException;
/**
* A postfix operator.
*
* @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 PostfixCommand<K, V, C> extends BinaryPostCommand<K, V, C> {
/**
* Create a new postfix operator.
*
* @param precedence
* The precedence of the operator.
*/
public PostfixCommand(final int precedence) {
super(precedence);
}
@Override
public CommandResult<K, V> denote(final Tree<Token<K, V>> operand, final Token<K, V> operator,
final ParserContext<K, V, C> ctx) throws ParserException {
return CommandResult.success(new SimpleTree<>(operator, operand));
}
}
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