jjg@283: /* ohair@554: * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. jjg@283: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. jjg@283: * jjg@283: * This code is free software; you can redistribute it and/or modify it jjg@283: * under the terms of the GNU General Public License version 2 only, as ohair@554: * published by the Free Software Foundation. Oracle designates this jjg@283: * particular file as subject to the "Classpath" exception as provided ohair@554: * by Oracle in the LICENSE file that accompanied this code. jjg@283: * jjg@283: * This code is distributed in the hope that it will be useful, but WITHOUT jjg@283: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or jjg@283: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License jjg@283: * version 2 for more details (a copy is included in the LICENSE file that jjg@283: * accompanied this code). jjg@283: * jjg@283: * You should have received a copy of the GNU General Public License version jjg@283: * 2 along with this work; if not, write to the Free Software Foundation, jjg@283: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. jjg@283: * ohair@554: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA ohair@554: * or visit www.oracle.com if you need additional information or have any ohair@554: * questions. jjg@283: */ jjg@283: jjg@283: package com.sun.tools.javap; jjg@283: jjg@283: import com.sun.tools.classfile.Code_attribute; jjg@283: import com.sun.tools.classfile.Code_attribute.Exception_data; jjg@283: import com.sun.tools.classfile.Instruction; jjg@283: import java.util.ArrayList; jjg@283: import java.util.HashMap; jjg@283: import java.util.List; jjg@283: import java.util.ListIterator; jjg@283: import java.util.Map; jjg@283: jjg@283: /** jjg@283: * Annotate instructions with details about try blocks. jjg@283: * jjg@581: *
This is NOT part of any supported API.
jjg@581: * If you write code that depends on this, you do so at your own risk.
jjg@283: * This code and its internal interfaces are subject to change or
jjg@283: * deletion without notice.
jjg@283: */
jjg@283: public class TryBlockWriter extends InstructionDetailWriter {
jjg@283: public enum NoteKind {
jjg@283: START("try") {
jjg@283: public boolean match(Exception_data entry, int pc) {
jjg@283: return (pc == entry.start_pc);
jjg@283: }
jjg@283: },
jjg@283: END("end try") {
jjg@283: public boolean match(Exception_data entry, int pc) {
jjg@283: return (pc == entry.end_pc);
jjg@283: }
jjg@283: },
jjg@283: HANDLER("catch") {
jjg@283: public boolean match(Exception_data entry, int pc) {
jjg@283: return (pc == entry.handler_pc);
jjg@283: }
jjg@283: };
jjg@283: NoteKind(String text) {
jjg@283: this.text = text;
jjg@283: }
jjg@283: public abstract boolean match(Exception_data entry, int pc);
jjg@283: public final String text;
jjg@283: };
jjg@283:
jjg@283: static TryBlockWriter instance(Context context) {
jjg@283: TryBlockWriter instance = context.get(TryBlockWriter.class);
jjg@283: if (instance == null)
jjg@283: instance = new TryBlockWriter(context);
jjg@283: return instance;
jjg@283: }
jjg@283:
jjg@283: protected TryBlockWriter(Context context) {
jjg@283: super(context);
jjg@283: context.put(TryBlockWriter.class, this);
jjg@283: constantWriter = ConstantWriter.instance(context);
jjg@283: }
jjg@283:
jjg@283: public void reset(Code_attribute attr) {
jjg@283: indexMap = new HashMap