Abacus/src/org/nwapw/abacus/tree/TreeNode.java

23 lines
599 B
Java

package org.nwapw.abacus.tree;
import org.nwapw.abacus.function.OperatorAssociativity;
import org.nwapw.abacus.lexing.Lexer;
import org.nwapw.abacus.lexing.pattern.Match;
import java.util.*;
/**
* An abstract class that represents an expression tree node.
*/
public abstract class TreeNode {
/**
* The function that reduces a tree to a single vale.
* @param reducer the reducer used to reduce the tree.
* @param <T> the type the reducer produces.
* @return the result of the reduction, or null on error.
*/
public abstract <T> T reduce(Reducer<T> reducer);
}