1 /*
2 * Copyright 2000-2004 The Apache Software Foundation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 */
17 package org.apache.bcel.generic;
18
19 /***
20 * Denote an instruction that may produce a value on top of the stack
21 * (this excludes DUP_X1, e.g.)
22 *
23 * @version $Id: StackProducer.java 386056 2006-03-15 11:31:56Z tcurdt $
24 * @author <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
25 */
26 public interface StackProducer {
27
28 /*** @return how many words are produced on stack
29 */
30 public int produceStack( ConstantPoolGen cpg );
31 }