9 files changed, 645 insertions, 0 deletions

diff --git a/src/cuchaz/enigma/bytecode/accessors/ClassInfoAccessor.java b/src/cuchaz/enigma/bytecode/accessors/ClassInfoAccessor.java
new file mode 100644
index 0000000..9072c29
--- /dev/null
+++ b/src/cuchaz/enigma/bytecode/accessors/ClassInfoAccessor.java
@@ -0,0 +1,55 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.bytecode.accessors;
+
+import java.lang.reflect.Field;
+
+public class ClassInfoAccessor {
+        
+        private static Class<?> m_class;
+        private static Field m_nameIndex;
+        
+        static {
+                try {
+                        m_class = Class.forName("javassist.bytecode.ClassInfo");
+                        m_nameIndex = m_class.getDeclaredField("name");
+                        m_nameIndex.setAccessible(true);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public static boolean isType(ConstInfoAccessor accessor) {
+                return m_class.isAssignableFrom(accessor.getItem().getClass());
+        }
+        
+        private Object m_item;
+        
+        public ClassInfoAccessor(Object item) {
+                m_item = item;
+        }
+        
+        public int getNameIndex() {
+                try {
+                        return (Integer)m_nameIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setNameIndex(int val) {
+                try {
+                        m_nameIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+}
diff --git a/src/cuchaz/enigma/bytecode/accessors/ConstInfoAccessor.java b/src/cuchaz/enigma/bytecode/accessors/ConstInfoAccessor.java
new file mode 100644
index 0000000..ede0473
--- /dev/null
+++ b/src/cuchaz/enigma/bytecode/accessors/ConstInfoAccessor.java
@@ -0,0 +1,156 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.bytecode.accessors;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+import cuchaz.enigma.bytecode.InfoType;
+
+public class ConstInfoAccessor {
+        
+        private static Class<?> m_class;
+        private static Field m_index;
+        private static Method m_getTag;
+        
+        static {
+                try {
+                        m_class = Class.forName("javassist.bytecode.ConstInfo");
+                        m_index = m_class.getDeclaredField("index");
+                        m_index.setAccessible(true);
+                        m_getTag = m_class.getMethod("getTag");
+                        m_getTag.setAccessible(true);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        private Object m_item;
+        
+        public ConstInfoAccessor(Object item) {
+                if (item == null) {
+                        throw new IllegalArgumentException("item cannot be null!");
+                }
+                m_item = item;
+        }
+        
+        public ConstInfoAccessor(DataInputStream in) throws IOException {
+                try {
+                        // read the entry
+                        String className = in.readUTF();
+                        int oldIndex = in.readInt();
+                        
+                        // NOTE: ConstInfo instances write a type id (a "tag"), but they don't read it back
+                        // so we have to read it here
+                        in.readByte();
+                        
+                        Constructor<?> constructor = Class.forName(className).getConstructor(DataInputStream.class, int.class);
+                        constructor.setAccessible(true);
+                        m_item = constructor.newInstance(in, oldIndex);
+                } catch (IOException ex) {
+                        throw ex;
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public Object getItem() {
+                return m_item;
+        }
+        
+        public int getIndex() {
+                try {
+                        return (Integer)m_index.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setIndex(int val) {
+                try {
+                        m_index.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public int getTag() {
+                try {
+                        return (Integer)m_getTag.invoke(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public ConstInfoAccessor copy() {
+                return new ConstInfoAccessor(copyItem());
+        }
+        
+        public Object copyItem() {
+                // I don't know of a simpler way to copy one of these silly things...
+                try {
+                        // serialize the item
+                        ByteArrayOutputStream buf = new ByteArrayOutputStream();
+                        DataOutputStream out = new DataOutputStream(buf);
+                        write(out);
+                        
+                        // deserialize the item
+                        DataInputStream in = new DataInputStream(new ByteArrayInputStream(buf.toByteArray()));
+                        Object item = new ConstInfoAccessor(in).getItem();
+                        in.close();
+                        
+                        return item;
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void write(DataOutputStream out) throws IOException {
+                try {
+                        out.writeUTF(m_item.getClass().getName());
+                        out.writeInt(getIndex());
+                        
+                        Method method = m_item.getClass().getMethod("write", DataOutputStream.class);
+                        method.setAccessible(true);
+                        method.invoke(m_item, out);
+                } catch (IOException ex) {
+                        throw ex;
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        @Override
+        public String toString() {
+                try {
+                        ByteArrayOutputStream buf = new ByteArrayOutputStream();
+                        PrintWriter out = new PrintWriter(buf);
+                        Method print = m_item.getClass().getMethod("print", PrintWriter.class);
+                        print.setAccessible(true);
+                        print.invoke(m_item, out);
+                        out.close();
+                        return buf.toString().replace("\n", "");
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public InfoType getType() {
+                return InfoType.getByTag(getTag());
+        }
+}
diff --git a/src/cuchaz/enigma/bytecode/accessors/InvokeDynamicInfoAccessor.java b/src/cuchaz/enigma/bytecode/accessors/InvokeDynamicInfoAccessor.java
new file mode 100644
index 0000000..82af0b9
--- /dev/null
+++ b/src/cuchaz/enigma/bytecode/accessors/InvokeDynamicInfoAccessor.java
@@ -0,0 +1,74 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.bytecode.accessors;
+
+import java.lang.reflect.Field;
+
+public class InvokeDynamicInfoAccessor {
+        
+        private static Class<?> m_class;
+        private static Field m_bootstrapIndex;
+        private static Field m_nameAndTypeIndex;
+        
+        static {
+                try {
+                        m_class = Class.forName("javassist.bytecode.InvokeDynamicInfo");
+                        m_bootstrapIndex = m_class.getDeclaredField("bootstrap");
+                        m_bootstrapIndex.setAccessible(true);
+                        m_nameAndTypeIndex = m_class.getDeclaredField("nameAndType");
+                        m_nameAndTypeIndex.setAccessible(true);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public static boolean isType(ConstInfoAccessor accessor) {
+                return m_class.isAssignableFrom(accessor.getItem().getClass());
+        }
+        
+        private Object m_item;
+        
+        public InvokeDynamicInfoAccessor(Object item) {
+                m_item = item;
+        }
+        
+        public int getBootstrapIndex() {
+                try {
+                        return (Integer)m_bootstrapIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setBootstrapIndex(int val) {
+                try {
+                        m_bootstrapIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public int getNameAndTypeIndex() {
+                try {
+                        return (Integer)m_nameAndTypeIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setNameAndTypeIndex(int val) {
+                try {
+                        m_nameAndTypeIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+}
diff --git a/src/cuchaz/enigma/bytecode/accessors/MemberRefInfoAccessor.java b/src/cuchaz/enigma/bytecode/accessors/MemberRefInfoAccessor.java
new file mode 100644
index 0000000..71ee5b7
--- /dev/null
+++ b/src/cuchaz/enigma/bytecode/accessors/MemberRefInfoAccessor.java
@@ -0,0 +1,74 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.bytecode.accessors;
+
+import java.lang.reflect.Field;
+
+public class MemberRefInfoAccessor {
+        
+        private static Class<?> m_class;
+        private static Field m_classIndex;
+        private static Field m_nameAndTypeIndex;
+        
+        static {
+                try {
+                        m_class = Class.forName("javassist.bytecode.MemberrefInfo");
+                        m_classIndex = m_class.getDeclaredField("classIndex");
+                        m_classIndex.setAccessible(true);
+                        m_nameAndTypeIndex = m_class.getDeclaredField("nameAndTypeIndex");
+                        m_nameAndTypeIndex.setAccessible(true);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public static boolean isType(ConstInfoAccessor accessor) {
+                return m_class.isAssignableFrom(accessor.getItem().getClass());
+        }
+        
+        private Object m_item;
+        
+        public MemberRefInfoAccessor(Object item) {
+                m_item = item;
+        }
+        
+        public int getClassIndex() {
+                try {
+                        return (Integer)m_classIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setClassIndex(int val) {
+                try {
+                        m_classIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public int getNameAndTypeIndex() {
+                try {
+                        return (Integer)m_nameAndTypeIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setNameAndTypeIndex(int val) {
+                try {
+                        m_nameAndTypeIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+}
diff --git a/src/cuchaz/enigma/bytecode/accessors/MethodHandleInfoAccessor.java b/src/cuchaz/enigma/bytecode/accessors/MethodHandleInfoAccessor.java
new file mode 100644
index 0000000..172b0c5
--- /dev/null
+++ b/src/cuchaz/enigma/bytecode/accessors/MethodHandleInfoAccessor.java
@@ -0,0 +1,74 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.bytecode.accessors;
+
+import java.lang.reflect.Field;
+
+public class MethodHandleInfoAccessor {
+        
+        private static Class<?> m_class;
+        private static Field m_kindIndex;
+        private static Field m_indexIndex;
+        
+        static {
+                try {
+                        m_class = Class.forName("javassist.bytecode.MethodHandleInfo");
+                        m_kindIndex = m_class.getDeclaredField("refKind");
+                        m_kindIndex.setAccessible(true);
+                        m_indexIndex = m_class.getDeclaredField("refIndex");
+                        m_indexIndex.setAccessible(true);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public static boolean isType(ConstInfoAccessor accessor) {
+                return m_class.isAssignableFrom(accessor.getItem().getClass());
+        }
+        
+        private Object m_item;
+        
+        public MethodHandleInfoAccessor(Object item) {
+                m_item = item;
+        }
+        
+        public int getTypeIndex() {
+                try {
+                        return (Integer)m_kindIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setTypeIndex(int val) {
+                try {
+                        m_kindIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public int getMethodRefIndex() {
+                try {
+                        return (Integer)m_indexIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setMethodRefIndex(int val) {
+                try {
+                        m_indexIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+}
diff --git a/src/cuchaz/enigma/bytecode/accessors/MethodTypeInfoAccessor.java b/src/cuchaz/enigma/bytecode/accessors/MethodTypeInfoAccessor.java
new file mode 100644
index 0000000..0099a84
--- /dev/null
+++ b/src/cuchaz/enigma/bytecode/accessors/MethodTypeInfoAccessor.java
@@ -0,0 +1,55 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.bytecode.accessors;
+
+import java.lang.reflect.Field;
+
+public class MethodTypeInfoAccessor {
+        
+        private static Class<?> m_class;
+        private static Field m_descriptorIndex;
+        
+        static {
+                try {
+                        m_class = Class.forName("javassist.bytecode.MethodTypeInfo");
+                        m_descriptorIndex = m_class.getDeclaredField("descriptor");
+                        m_descriptorIndex.setAccessible(true);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public static boolean isType(ConstInfoAccessor accessor) {
+                return m_class.isAssignableFrom(accessor.getItem().getClass());
+        }
+        
+        private Object m_item;
+        
+        public MethodTypeInfoAccessor(Object item) {
+                m_item = item;
+        }
+        
+        public int getTypeIndex() {
+                try {
+                        return (Integer)m_descriptorIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setTypeIndex(int val) {
+                try {
+                        m_descriptorIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+}
diff --git a/src/cuchaz/enigma/bytecode/accessors/NameAndTypeInfoAccessor.java b/src/cuchaz/enigma/bytecode/accessors/NameAndTypeInfoAccessor.java
new file mode 100644
index 0000000..3ecc129
--- /dev/null
+++ b/src/cuchaz/enigma/bytecode/accessors/NameAndTypeInfoAccessor.java
@@ -0,0 +1,74 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.bytecode.accessors;
+
+import java.lang.reflect.Field;
+
+public class NameAndTypeInfoAccessor {
+        
+        private static Class<?> m_class;
+        private static Field m_nameIndex;
+        private static Field m_typeIndex;
+        
+        static {
+                try {
+                        m_class = Class.forName("javassist.bytecode.NameAndTypeInfo");
+                        m_nameIndex = m_class.getDeclaredField("memberName");
+                        m_nameIndex.setAccessible(true);
+                        m_typeIndex = m_class.getDeclaredField("typeDescriptor");
+                        m_typeIndex.setAccessible(true);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public static boolean isType(ConstInfoAccessor accessor) {
+                return m_class.isAssignableFrom(accessor.getItem().getClass());
+        }
+        
+        private Object m_item;
+        
+        public NameAndTypeInfoAccessor(Object item) {
+                m_item = item;
+        }
+        
+        public int getNameIndex() {
+                try {
+                        return (Integer)m_nameIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setNameIndex(int val) {
+                try {
+                        m_nameIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public int getTypeIndex() {
+                try {
+                        return (Integer)m_typeIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setTypeIndex(int val) {
+                try {
+                        m_typeIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+}
diff --git a/src/cuchaz/enigma/bytecode/accessors/StringInfoAccessor.java b/src/cuchaz/enigma/bytecode/accessors/StringInfoAccessor.java
new file mode 100644
index 0000000..f150612
--- /dev/null
+++ b/src/cuchaz/enigma/bytecode/accessors/StringInfoAccessor.java
@@ -0,0 +1,55 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.bytecode.accessors;
+
+import java.lang.reflect.Field;
+
+public class StringInfoAccessor {
+        
+        private static Class<?> m_class;
+        private static Field m_stringIndex;
+        
+        static {
+                try {
+                        m_class = Class.forName("javassist.bytecode.StringInfo");
+                        m_stringIndex = m_class.getDeclaredField("string");
+                        m_stringIndex.setAccessible(true);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public static boolean isType(ConstInfoAccessor accessor) {
+                return m_class.isAssignableFrom(accessor.getItem().getClass());
+        }
+        
+        private Object m_item;
+        
+        public StringInfoAccessor(Object item) {
+                m_item = item;
+        }
+        
+        public int getStringIndex() {
+                try {
+                        return (Integer)m_stringIndex.get(m_item);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public void setStringIndex(int val) {
+                try {
+                        m_stringIndex.set(m_item, val);
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+}
diff --git a/src/cuchaz/enigma/bytecode/accessors/Utf8InfoAccessor.java b/src/cuchaz/enigma/bytecode/accessors/Utf8InfoAccessor.java
new file mode 100644
index 0000000..38e8ff9
--- /dev/null
+++ b/src/cuchaz/enigma/bytecode/accessors/Utf8InfoAccessor.java
@@ -0,0 +1,28 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.bytecode.accessors;
+
+public class Utf8InfoAccessor {
+        
+        private static Class<?> m_class;
+        
+        static {
+                try {
+                        m_class = Class.forName("javassist.bytecode.Utf8Info");
+                } catch (Exception ex) {
+                        throw new Error(ex);
+                }
+        }
+        
+        public static boolean isType(ConstInfoAccessor accessor) {
+                return m_class.isAssignableFrom(accessor.getItem().getClass());
+        }
+}