--- old/langtools/src/jdk.compiler/share/classes/com/sun/tools/javap/StackMapWriter.java 2015-05-26 21:42:37.943833098 -0700 +++ /dev/null 2015-04-26 22:05:36.465433038 -0700 @@ -1,289 +0,0 @@ -/* - * Copyright (c) 2009, 2013, 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 java.util.Arrays; -import java.util.HashMap; -import java.util.Map; - -import com.sun.tools.classfile.AccessFlags; -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.Method; -import com.sun.tools.classfile.StackMapTable_attribute; -import com.sun.tools.classfile.StackMapTable_attribute.*; - -import static com.sun.tools.classfile.StackMapTable_attribute.verification_type_info.*; - -/** - * Annotate instructions with stack map. - * - *
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.
- */
-public class StackMapWriter extends InstructionDetailWriter {
- static StackMapWriter instance(Context context) {
- StackMapWriter instance = context.get(StackMapWriter.class);
- if (instance == null)
- instance = new StackMapWriter(context);
- return instance;
- }
-
- protected StackMapWriter(Context context) {
- super(context);
- context.put(StackMapWriter.class, this);
- classWriter = ClassWriter.instance(context);
- }
-
- public void reset(Code_attribute attr) {
- setStackMap((StackMapTable_attribute) attr.attributes.get(Attribute.StackMapTable));
- }
-
- void setStackMap(StackMapTable_attribute attr) {
- if (attr == null) {
- map = null;
- return;
- }
-
- Method m = classWriter.getMethod();
- Descriptor d = m.descriptor;
- String[] args;
- try {
- ConstantPool cp = classWriter.getClassFile().constant_pool;
- String argString = d.getParameterTypes(cp);
- args = argString.substring(1, argString.length() - 1).split("[, ]+");
- } catch (ConstantPoolException | InvalidDescriptor e) {
- return;
- }
- boolean isStatic = m.access_flags.is(AccessFlags.ACC_STATIC);
-
- verification_type_info[] initialLocals = new verification_type_info[(isStatic ? 0 : 1) + args.length];
- if (!isStatic)
- initialLocals[0] = new CustomVerificationTypeInfo("this");
- for (int i = 0; i < args.length; i++) {
- initialLocals[(isStatic ? 0 : 1) + i] =
- new CustomVerificationTypeInfo(args[i].replace(".", "/"));
- }
-
- map = new HashMap<>();
- StackMapBuilder builder = new StackMapBuilder();
-
- // using -1 as the pc for the initial frame effectively compensates for
- // the difference in behavior for the first stack map frame (where the
- // pc offset is just offset_delta) compared to subsequent frames (where
- // the pc offset is always offset_delta+1).
- int pc = -1;
-
- map.put(pc, new StackMap(initialLocals, empty));
-
- for (int i = 0; i < attr.entries.length; i++)
- pc = attr.entries[i].accept(builder, pc);
- }
-
- public void writeInitialDetails() {
- writeDetails(-1);
- }
-
- public void writeDetails(Instruction instr) {
- writeDetails(instr.getPC());
- }
-
- private void writeDetails(int pc) {
- if (map == null)
- return;
-
- StackMap m = map.get(pc);
- if (m != null) {
- print("StackMap locals: ", m.locals);
- print("StackMap stack: ", m.stack);
- }
-
- }
-
- void print(String label, verification_type_info[] entries) {
- print(label);
- for (int i = 0; i < entries.length; i++) {
- print(" ");
- print(entries[i]);
- }
- println();
- }
-
- void print(verification_type_info entry) {
- if (entry == null) {
- print("ERROR");
- return;
- }
-
- switch (entry.tag) {
- case -1:
- print(((CustomVerificationTypeInfo) entry).text);
- break;
-
- case ITEM_Top:
- print("top");
- break;
-
- case ITEM_Integer:
- print("int");
- break;
-
- case ITEM_Float:
- print("float");
- break;
-
- case ITEM_Long:
- print("long");
- break;
-
- case ITEM_Double:
- print("double");
- break;
-
- case ITEM_Null:
- print("null");
- break;
-
- case ITEM_UninitializedThis:
- print("uninit_this");
- break;
-
- case ITEM_Object:
- try {
- ConstantPool cp = classWriter.getClassFile().constant_pool;
- ConstantPool.CONSTANT_Class_info class_info = cp.getClassInfo(((Object_variable_info) entry).cpool_index);
- print(cp.getUTF8Value(class_info.name_index));
- } catch (ConstantPoolException e) {
- print("??");
- }
- break;
-
- case ITEM_Uninitialized:
- print(((Uninitialized_variable_info) entry).offset);
- break;
- }
-
- }
-
- private Map 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.
+ */
+public class StackMapWriter extends InstructionDetailWriter {
+ static StackMapWriter instance(Context context) {
+ StackMapWriter instance = context.get(StackMapWriter.class);
+ if (instance == null)
+ instance = new StackMapWriter(context);
+ return instance;
+ }
+
+ protected StackMapWriter(Context context) {
+ super(context);
+ context.put(StackMapWriter.class, this);
+ classWriter = ClassWriter.instance(context);
+ }
+
+ public void reset(Code_attribute attr) {
+ setStackMap((StackMapTable_attribute) attr.attributes.get(Attribute.StackMapTable));
+ }
+
+ void setStackMap(StackMapTable_attribute attr) {
+ if (attr == null) {
+ map = null;
+ return;
+ }
+
+ Method m = classWriter.getMethod();
+ Descriptor d = m.descriptor;
+ String[] args;
+ try {
+ ConstantPool cp = classWriter.getClassFile().constant_pool;
+ String argString = d.getParameterTypes(cp);
+ args = argString.substring(1, argString.length() - 1).split("[, ]+");
+ } catch (ConstantPoolException | InvalidDescriptor e) {
+ return;
+ }
+ boolean isStatic = m.access_flags.is(AccessFlags.ACC_STATIC);
+
+ verification_type_info[] initialLocals = new verification_type_info[(isStatic ? 0 : 1) + args.length];
+ if (!isStatic)
+ initialLocals[0] = new CustomVerificationTypeInfo("this");
+ for (int i = 0; i < args.length; i++) {
+ initialLocals[(isStatic ? 0 : 1) + i] =
+ new CustomVerificationTypeInfo(args[i].replace(".", "/"));
+ }
+
+ map = new HashMap<>();
+ StackMapBuilder builder = new StackMapBuilder();
+
+ // using -1 as the pc for the initial frame effectively compensates for
+ // the difference in behavior for the first stack map frame (where the
+ // pc offset is just offset_delta) compared to subsequent frames (where
+ // the pc offset is always offset_delta+1).
+ int pc = -1;
+
+ map.put(pc, new StackMap(initialLocals, empty));
+
+ for (int i = 0; i < attr.entries.length; i++)
+ pc = attr.entries[i].accept(builder, pc);
+ }
+
+ public void writeInitialDetails() {
+ writeDetails(-1);
+ }
+
+ public void writeDetails(Instruction instr) {
+ writeDetails(instr.getPC());
+ }
+
+ private void writeDetails(int pc) {
+ if (map == null)
+ return;
+
+ StackMap m = map.get(pc);
+ if (m != null) {
+ print("StackMap locals: ", m.locals);
+ print("StackMap stack: ", m.stack);
+ }
+
+ }
+
+ void print(String label, verification_type_info[] entries) {
+ print(label);
+ for (int i = 0; i < entries.length; i++) {
+ print(" ");
+ print(entries[i]);
+ }
+ println();
+ }
+
+ void print(verification_type_info entry) {
+ if (entry == null) {
+ print("ERROR");
+ return;
+ }
+
+ switch (entry.tag) {
+ case -1:
+ print(((CustomVerificationTypeInfo) entry).text);
+ break;
+
+ case ITEM_Top:
+ print("top");
+ break;
+
+ case ITEM_Integer:
+ print("int");
+ break;
+
+ case ITEM_Float:
+ print("float");
+ break;
+
+ case ITEM_Long:
+ print("long");
+ break;
+
+ case ITEM_Double:
+ print("double");
+ break;
+
+ case ITEM_Null:
+ print("null");
+ break;
+
+ case ITEM_UninitializedThis:
+ print("uninit_this");
+ break;
+
+ case ITEM_Object:
+ try {
+ ConstantPool cp = classWriter.getClassFile().constant_pool;
+ ConstantPool.CONSTANT_Class_info class_info = cp.getClassInfo(((Object_variable_info) entry).cpool_index);
+ print(cp.getUTF8Value(class_info.name_index));
+ } catch (ConstantPoolException e) {
+ print("??");
+ }
+ break;
+
+ case ITEM_Uninitialized:
+ print(((Uninitialized_variable_info) entry).offset);
+ break;
+ }
+
+ }
+
+ private Map