--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/share/classes/com/sun/tools/javap/LocalVariableTableWriter.java Tue May 19 13:53:00 2009 -0700
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2009 Sun Microsystems, Inc. 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. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.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 API supported by Sun Microsystems. 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<Integer, List<LocalVariableTable_attribute.Entry>>();
+ 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<LocalVariableTable_attribute.Entry>();
+ 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;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/share/classes/com/sun/tools/javap/LocalVariableTypeTableWriter.java Tue May 19 13:53:00 2009 -0700
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2009 Sun Microsystems, Inc. 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. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.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.LocalVariableTypeTable_attribute;
+import com.sun.tools.classfile.Signature;
+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 API supported by Sun Microsystems. 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 LocalVariableTypeTableWriter extends InstructionDetailWriter {
+ public enum NoteKind {
+ START("start") {
+ public boolean match(LocalVariableTypeTable_attribute.Entry entry, int pc) {
+ return (pc == entry.start_pc);
+ }
+ },
+ END("end") {
+ public boolean match(LocalVariableTypeTable_attribute.Entry entry, int pc) {
+ return (pc == entry.start_pc + entry.length);
+ }
+ };
+ NoteKind(String text) {
+ this.text = text;
+ }
+ public abstract boolean match(LocalVariableTypeTable_attribute.Entry entry, int pc);
+ public final String text;
+ };
+
+ static LocalVariableTypeTableWriter instance(Context context) {
+ LocalVariableTypeTableWriter instance = context.get(LocalVariableTypeTableWriter.class);
+ if (instance == null)
+ instance = new LocalVariableTypeTableWriter(context);
+ return instance;
+ }
+
+ protected LocalVariableTypeTableWriter(Context context) {
+ super(context);
+ context.put(LocalVariableTypeTableWriter.class, this);
+ classWriter = ClassWriter.instance(context);
+ }
+
+ public void reset(Code_attribute attr) {
+ codeAttr = attr;
+ pcMap = new HashMap<Integer, List<LocalVariableTypeTable_attribute.Entry>>();
+ LocalVariableTypeTable_attribute lvt =
+ (LocalVariableTypeTable_attribute) (attr.attributes.get(Attribute.LocalVariableTypeTable));
+ if (lvt == null)
+ return;
+
+ for (int i = 0; i < lvt.local_variable_table.length; i++) {
+ LocalVariableTypeTable_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<LocalVariableTypeTable_attribute.Entry> entries = pcMap.get(pc);
+ if (entries != null) {
+ for (ListIterator<LocalVariableTypeTable_attribute.Entry> iter =
+ entries.listIterator(kind == NoteKind.END ? entries.size() : 0);
+ kind == NoteKind.END ? iter.hasPrevious() : iter.hasNext() ; ) {
+ LocalVariableTypeTable_attribute.Entry entry =
+ kind == NoteKind.END ? iter.previous() : iter.next();
+ if (kind.match(entry, pc)) {
+ print(indent);
+ print(kind.text);
+ print(" generic local ");
+ print(entry.index);
+ print(" // ");
+ Descriptor d = new Signature(entry.signature_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, LocalVariableTypeTable_attribute.Entry entry) {
+ List<LocalVariableTypeTable_attribute.Entry> list = pcMap.get(pc);
+ if (list == null) {
+ list = new ArrayList<LocalVariableTypeTable_attribute.Entry>();
+ pcMap.put(pc, list);
+ }
+ if (!list.contains(entry))
+ list.add(entry);
+ }
+
+ private ClassWriter classWriter;
+ private Code_attribute codeAttr;
+ private Map<Integer, List<LocalVariableTypeTable_attribute.Entry>> pcMap;
+}