if(a == b) {
	print(a);
} else {
	a = b;
}

IF; EXPSTA; IDENT:a; COMPARE; IDENT:b; EXPEND; COMPSTA;
IDENT:print; EXPSTA; IDENT:a; EXPEND; END;
COMPEND; ELSE; COMPSTA;
IDENT:a; ASSIGN; IDENT:b; END;
COMPEND;

public final class LogicTree {
    public static enum Type {
        STMT_LIST,
        EMPTY_STMT,
        EXPR_STMT,
        IFTHEN_STMT,
        IFTHENELSE_STMT,
        ERROR_STMT,

        EQUAL_EXPR,
        ASSIGN_EXPR,
        CONCAT_EXPR,
        IDENT_EXPR,
    }
    public static enum DataType {

        T_VOID,
        T_OBJECT
    }
    private static final int MAX_SUBTREES = 3;
    private LogicTree parent;
    private Iterator<Token> it;
    private Type type;
    public String symbol;
    public LogicTree subtrees[] = new LogicTree[MAX_SUBTREES];

    public LogicTree(Type type) {
        this.type = type;
        check();
    }
    public LogicTree(Type type, LogicTree... subtrees) {
        this.type = type;
        this.subtrees = subtrees;
        check();
    }
    public Type getType() {
        return type;
    }
    // Check the semantics of this tree
    public void check() {
    }
}