01: /*
02: * Copyright 2004 Brian S O'Neill
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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.cojen.classfile;
18:
19: /**
20: * Provides the location of an instruction in a CodeBuffer.
21: *
22: * @author Brian S O'Neill
23: */
24: public interface Location extends Comparable {
25: /**
26: * Returns -1 if the location isn't yet fully resolved.
27: *
28: * @exception IllegalStateException when the location is unknown and cannot
29: * be resolved.
30: */
31: int getLocation() throws IllegalStateException;
32: }
|