langtools/src/jdk.compiler/share/classes/com/sun/tools/javap/LocalVariableTableWriter.java
--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javap/LocalVariableTableWriter.java Thu May 28 16:13:55 2015 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,158 +0,0 @@
-/*
- * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package com.sun.tools.javap;
-
-import com.sun.tools.classfile.Attribute;
-import com.sun.tools.classfile.Code_attribute;
-import com.sun.tools.classfile.ConstantPool;
-import com.sun.tools.classfile.ConstantPoolException;
-import com.sun.tools.classfile.Descriptor;
-import com.sun.tools.classfile.Descriptor.InvalidDescriptor;
-import com.sun.tools.classfile.Instruction;
-import com.sun.tools.classfile.LocalVariableTable_attribute;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.ListIterator;
-import java.util.Map;
-
-/**
- * Annotate instructions with details about local variables.
- *
- * <p><b>This is NOT part of any supported API.
- * If you write code that depends on this, you do so at your own risk.
- * This code and its internal interfaces are subject to change or
- * deletion without notice.</b>
- */
-public class LocalVariableTableWriter extends InstructionDetailWriter {
- public enum NoteKind {
- START("start") {
- public boolean match(LocalVariableTable_attribute.Entry entry, int pc) {
- return (pc == entry.start_pc);
- }
- },
- END("end") {
- public boolean match(LocalVariableTable_attribute.Entry entry, int pc) {
- return (pc == entry.start_pc + entry.length);
- }
- };
- NoteKind(String text) {
- this.text = text;
- }
- public abstract boolean match(LocalVariableTable_attribute.Entry entry, int pc);
- public final String text;
- }
-
- static LocalVariableTableWriter instance(Context context) {
- LocalVariableTableWriter instance = context.get(LocalVariableTableWriter.class);
- if (instance == null)
- instance = new LocalVariableTableWriter(context);
- return instance;
- }
-
- protected LocalVariableTableWriter(Context context) {
- super(context);
- context.put(LocalVariableTableWriter.class, this);
- classWriter = ClassWriter.instance(context);
- }
-
- public void reset(Code_attribute attr) {
- codeAttr = attr;
- pcMap = new HashMap<>();
- LocalVariableTable_attribute lvt =
- (LocalVariableTable_attribute) (attr.attributes.get(Attribute.LocalVariableTable));
- if (lvt == null)
- return;
-
- for (int i = 0; i < lvt.local_variable_table.length; i++) {
- LocalVariableTable_attribute.Entry entry = lvt.local_variable_table[i];
- put(entry.start_pc, entry);
- put(entry.start_pc + entry.length, entry);
- }
- }
-
- public void writeDetails(Instruction instr) {
- int pc = instr.getPC();
- writeLocalVariables(pc, NoteKind.END);
- writeLocalVariables(pc, NoteKind.START);
- }
-
- @Override
- public void flush() {
- int pc = codeAttr.code_length;
- writeLocalVariables(pc, NoteKind.END);
- }
-
- public void writeLocalVariables(int pc, NoteKind kind) {
- ConstantPool constant_pool = classWriter.getClassFile().constant_pool;
- String indent = space(2); // get from Options?
- List<LocalVariableTable_attribute.Entry> entries = pcMap.get(pc);
- if (entries != null) {
- for (ListIterator<LocalVariableTable_attribute.Entry> iter =
- entries.listIterator(kind == NoteKind.END ? entries.size() : 0);
- kind == NoteKind.END ? iter.hasPrevious() : iter.hasNext() ; ) {
- LocalVariableTable_attribute.Entry entry =
- kind == NoteKind.END ? iter.previous() : iter.next();
- if (kind.match(entry, pc)) {
- print(indent);
- print(kind.text);
- print(" local ");
- print(entry.index);
- print(" // ");
- Descriptor d = new Descriptor(entry.descriptor_index);
- try {
- print(d.getFieldType(constant_pool));
- } catch (InvalidDescriptor e) {
- print(report(e));
- } catch (ConstantPoolException e) {
- print(report(e));
- }
- print(" ");
- try {
- print(constant_pool.getUTF8Value(entry.name_index));
- } catch (ConstantPoolException e) {
- print(report(e));
- }
- println();
- }
- }
- }
- }
-
- private void put(int pc, LocalVariableTable_attribute.Entry entry) {
- List<LocalVariableTable_attribute.Entry> list = pcMap.get(pc);
- if (list == null) {
- list = new ArrayList<>();
- pcMap.put(pc, list);
- }
- if (!list.contains(entry))
- list.add(entry);
- }
-
- private ClassWriter classWriter;
- private Code_attribute codeAttr;
- private Map<Integer, List<LocalVariableTable_attribute.Entry>> pcMap;
-}