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Posted to dev@tapestry.apache.org by hl...@apache.org on 2011/04/06 21:11:38 UTC

svn commit: r1089584 [7/21] - in /tapestry/tapestry5/trunk/plastic: ./ src/external/ src/external/java/ src/external/java/org/ src/external/java/org/objectweb/ src/external/java/org/objectweb/asm/ src/external/java/org/objectweb/asm/attrs/ src/external...

Added: tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Opcodes.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Opcodes.java?rev=1089584&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Opcodes.java (added)
+++ tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Opcodes.java Wed Apr  6 19:11:34 2011
@@ -0,0 +1,347 @@
+/***
+ * ASM: a very small and fast Java bytecode manipulation framework
+ * Copyright (c) 2000-2007 INRIA, France Telecom
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.objectweb.asm;
+
+/**
+ * Defines the JVM opcodes, access flags and array type codes. This interface
+ * does not define all the JVM opcodes because some opcodes are automatically
+ * handled. For example, the xLOAD and xSTORE opcodes are automatically replaced
+ * by xLOAD_n and xSTORE_n opcodes when possible. The xLOAD_n and xSTORE_n
+ * opcodes are therefore not defined in this interface. Likewise for LDC,
+ * automatically replaced by LDC_W or LDC2_W when necessary, WIDE, GOTO_W and
+ * JSR_W.
+ * 
+ * @author Eric Bruneton
+ * @author Eugene Kuleshov
+ */
+public interface Opcodes {
+
+    // versions
+
+    int V1_1 = 3 << 16 | 45;
+    int V1_2 = 0 << 16 | 46;
+    int V1_3 = 0 << 16 | 47;
+    int V1_4 = 0 << 16 | 48;
+    int V1_5 = 0 << 16 | 49;
+    int V1_6 = 0 << 16 | 50;
+    int V1_7 = 0 << 16 | 51;
+
+    // access flags
+
+    int ACC_PUBLIC = 0x0001; // class, field, method
+    int ACC_PRIVATE = 0x0002; // class, field, method
+    int ACC_PROTECTED = 0x0004; // class, field, method
+    int ACC_STATIC = 0x0008; // field, method
+    int ACC_FINAL = 0x0010; // class, field, method
+    int ACC_SUPER = 0x0020; // class
+    int ACC_SYNCHRONIZED = 0x0020; // method
+    int ACC_VOLATILE = 0x0040; // field
+    int ACC_BRIDGE = 0x0040; // method
+    int ACC_VARARGS = 0x0080; // method
+    int ACC_TRANSIENT = 0x0080; // field
+    int ACC_NATIVE = 0x0100; // method
+    int ACC_INTERFACE = 0x0200; // class
+    int ACC_ABSTRACT = 0x0400; // class, method
+    int ACC_STRICT = 0x0800; // method
+    int ACC_SYNTHETIC = 0x1000; // class, field, method
+    int ACC_ANNOTATION = 0x2000; // class
+    int ACC_ENUM = 0x4000; // class(?) field inner
+
+    // ASM specific pseudo access flags
+
+    int ACC_DEPRECATED = 0x20000; // class, field, method
+
+    // types for NEWARRAY
+
+    int T_BOOLEAN = 4;
+    int T_CHAR = 5;
+    int T_FLOAT = 6;
+    int T_DOUBLE = 7;
+    int T_BYTE = 8;
+    int T_SHORT = 9;
+    int T_INT = 10;
+    int T_LONG = 11;
+
+    // stack map frame types
+
+    /**
+     * Represents an expanded frame. See {@link ClassReader#EXPAND_FRAMES}.
+     */
+    int F_NEW = -1;
+
+    /**
+     * Represents a compressed frame with complete frame data.
+     */
+    int F_FULL = 0;
+
+    /**
+     * Represents a compressed frame where locals are the same as the locals in
+     * the previous frame, except that additional 1-3 locals are defined, and
+     * with an empty stack.
+     */
+    int F_APPEND = 1;
+
+    /**
+     * Represents a compressed frame where locals are the same as the locals in
+     * the previous frame, except that the last 1-3 locals are absent and with
+     * an empty stack.
+     */
+    int F_CHOP = 2;
+
+    /**
+     * Represents a compressed frame with exactly the same locals as the
+     * previous frame and with an empty stack.
+     */
+    int F_SAME = 3;
+
+    /**
+     * Represents a compressed frame with exactly the same locals as the
+     * previous frame and with a single value on the stack.
+     */
+    int F_SAME1 = 4;
+
+    Integer TOP = new Integer(0);
+    Integer INTEGER = new Integer(1);
+    Integer FLOAT = new Integer(2);
+    Integer DOUBLE = new Integer(3);
+    Integer LONG = new Integer(4);
+    Integer NULL = new Integer(5);
+    Integer UNINITIALIZED_THIS = new Integer(6);
+
+    /** 
+     * Represents a owner of an invokedynamic call.
+     */
+    String INVOKEDYNAMIC_OWNER = "java/lang/dyn/Dynamic";
+    
+    // opcodes // visit method (- = idem)
+
+    int NOP = 0; // visitInsn
+    int ACONST_NULL = 1; // -
+    int ICONST_M1 = 2; // -
+    int ICONST_0 = 3; // -
+    int ICONST_1 = 4; // -
+    int ICONST_2 = 5; // -
+    int ICONST_3 = 6; // -
+    int ICONST_4 = 7; // -
+    int ICONST_5 = 8; // -
+    int LCONST_0 = 9; // -
+    int LCONST_1 = 10; // -
+    int FCONST_0 = 11; // -
+    int FCONST_1 = 12; // -
+    int FCONST_2 = 13; // -
+    int DCONST_0 = 14; // -
+    int DCONST_1 = 15; // -
+    int BIPUSH = 16; // visitIntInsn
+    int SIPUSH = 17; // -
+    int LDC = 18; // visitLdcInsn
+    // int LDC_W = 19; // -
+    // int LDC2_W = 20; // -
+    int ILOAD = 21; // visitVarInsn
+    int LLOAD = 22; // -
+    int FLOAD = 23; // -
+    int DLOAD = 24; // -
+    int ALOAD = 25; // -
+    // int ILOAD_0 = 26; // -
+    // int ILOAD_1 = 27; // -
+    // int ILOAD_2 = 28; // -
+    // int ILOAD_3 = 29; // -
+    // int LLOAD_0 = 30; // -
+    // int LLOAD_1 = 31; // -
+    // int LLOAD_2 = 32; // -
+    // int LLOAD_3 = 33; // -
+    // int FLOAD_0 = 34; // -
+    // int FLOAD_1 = 35; // -
+    // int FLOAD_2 = 36; // -
+    // int FLOAD_3 = 37; // -
+    // int DLOAD_0 = 38; // -
+    // int DLOAD_1 = 39; // -
+    // int DLOAD_2 = 40; // -
+    // int DLOAD_3 = 41; // -
+    // int ALOAD_0 = 42; // -
+    // int ALOAD_1 = 43; // -
+    // int ALOAD_2 = 44; // -
+    // int ALOAD_3 = 45; // -
+    int IALOAD = 46; // visitInsn
+    int LALOAD = 47; // -
+    int FALOAD = 48; // -
+    int DALOAD = 49; // -
+    int AALOAD = 50; // -
+    int BALOAD = 51; // -
+    int CALOAD = 52; // -
+    int SALOAD = 53; // -
+    int ISTORE = 54; // visitVarInsn
+    int LSTORE = 55; // -
+    int FSTORE = 56; // -
+    int DSTORE = 57; // -
+    int ASTORE = 58; // -
+    // int ISTORE_0 = 59; // -
+    // int ISTORE_1 = 60; // -
+    // int ISTORE_2 = 61; // -
+    // int ISTORE_3 = 62; // -
+    // int LSTORE_0 = 63; // -
+    // int LSTORE_1 = 64; // -
+    // int LSTORE_2 = 65; // -
+    // int LSTORE_3 = 66; // -
+    // int FSTORE_0 = 67; // -
+    // int FSTORE_1 = 68; // -
+    // int FSTORE_2 = 69; // -
+    // int FSTORE_3 = 70; // -
+    // int DSTORE_0 = 71; // -
+    // int DSTORE_1 = 72; // -
+    // int DSTORE_2 = 73; // -
+    // int DSTORE_3 = 74; // -
+    // int ASTORE_0 = 75; // -
+    // int ASTORE_1 = 76; // -
+    // int ASTORE_2 = 77; // -
+    // int ASTORE_3 = 78; // -
+    int IASTORE = 79; // visitInsn
+    int LASTORE = 80; // -
+    int FASTORE = 81; // -
+    int DASTORE = 82; // -
+    int AASTORE = 83; // -
+    int BASTORE = 84; // -
+    int CASTORE = 85; // -
+    int SASTORE = 86; // -
+    int POP = 87; // -
+    int POP2 = 88; // -
+    int DUP = 89; // -
+    int DUP_X1 = 90; // -
+    int DUP_X2 = 91; // -
+    int DUP2 = 92; // -
+    int DUP2_X1 = 93; // -
+    int DUP2_X2 = 94; // -
+    int SWAP = 95; // -
+    int IADD = 96; // -
+    int LADD = 97; // -
+    int FADD = 98; // -
+    int DADD = 99; // -
+    int ISUB = 100; // -
+    int LSUB = 101; // -
+    int FSUB = 102; // -
+    int DSUB = 103; // -
+    int IMUL = 104; // -
+    int LMUL = 105; // -
+    int FMUL = 106; // -
+    int DMUL = 107; // -
+    int IDIV = 108; // -
+    int LDIV = 109; // -
+    int FDIV = 110; // -
+    int DDIV = 111; // -
+    int IREM = 112; // -
+    int LREM = 113; // -
+    int FREM = 114; // -
+    int DREM = 115; // -
+    int INEG = 116; // -
+    int LNEG = 117; // -
+    int FNEG = 118; // -
+    int DNEG = 119; // -
+    int ISHL = 120; // -
+    int LSHL = 121; // -
+    int ISHR = 122; // -
+    int LSHR = 123; // -
+    int IUSHR = 124; // -
+    int LUSHR = 125; // -
+    int IAND = 126; // -
+    int LAND = 127; // -
+    int IOR = 128; // -
+    int LOR = 129; // -
+    int IXOR = 130; // -
+    int LXOR = 131; // -
+    int IINC = 132; // visitIincInsn
+    int I2L = 133; // visitInsn
+    int I2F = 134; // -
+    int I2D = 135; // -
+    int L2I = 136; // -
+    int L2F = 137; // -
+    int L2D = 138; // -
+    int F2I = 139; // -
+    int F2L = 140; // -
+    int F2D = 141; // -
+    int D2I = 142; // -
+    int D2L = 143; // -
+    int D2F = 144; // -
+    int I2B = 145; // -
+    int I2C = 146; // -
+    int I2S = 147; // -
+    int LCMP = 148; // -
+    int FCMPL = 149; // -
+    int FCMPG = 150; // -
+    int DCMPL = 151; // -
+    int DCMPG = 152; // -
+    int IFEQ = 153; // visitJumpInsn
+    int IFNE = 154; // -
+    int IFLT = 155; // -
+    int IFGE = 156; // -
+    int IFGT = 157; // -
+    int IFLE = 158; // -
+    int IF_ICMPEQ = 159; // -
+    int IF_ICMPNE = 160; // -
+    int IF_ICMPLT = 161; // -
+    int IF_ICMPGE = 162; // -
+    int IF_ICMPGT = 163; // -
+    int IF_ICMPLE = 164; // -
+    int IF_ACMPEQ = 165; // -
+    int IF_ACMPNE = 166; // -
+    int GOTO = 167; // -
+    int JSR = 168; // -
+    int RET = 169; // visitVarInsn
+    int TABLESWITCH = 170; // visiTableSwitchInsn
+    int LOOKUPSWITCH = 171; // visitLookupSwitch
+    int IRETURN = 172; // visitInsn
+    int LRETURN = 173; // -
+    int FRETURN = 174; // -
+    int DRETURN = 175; // -
+    int ARETURN = 176; // -
+    int RETURN = 177; // -
+    int GETSTATIC = 178; // visitFieldInsn
+    int PUTSTATIC = 179; // -
+    int GETFIELD = 180; // -
+    int PUTFIELD = 181; // -
+    int INVOKEVIRTUAL = 182; // visitMethodInsn
+    int INVOKESPECIAL = 183; // -
+    int INVOKESTATIC = 184; // -
+    int INVOKEINTERFACE = 185; // -
+    int INVOKEDYNAMIC = 186; // -
+    int NEW = 187; // visitTypeInsn
+    int NEWARRAY = 188; // visitIntInsn
+    int ANEWARRAY = 189; // visitTypeInsn
+    int ARRAYLENGTH = 190; // visitInsn
+    int ATHROW = 191; // -
+    int CHECKCAST = 192; // visitTypeInsn
+    int INSTANCEOF = 193; // -
+    int MONITORENTER = 194; // visitInsn
+    int MONITOREXIT = 195; // -
+    // int WIDE = 196; // NOT VISITED
+    int MULTIANEWARRAY = 197; // visitMultiANewArrayInsn
+    int IFNULL = 198; // visitJumpInsn
+    int IFNONNULL = 199; // -
+    // int GOTO_W = 200; // -
+    // int JSR_W = 201; // -
+}

Added: tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Type.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Type.java?rev=1089584&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Type.java (added)
+++ tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Type.java Wed Apr  6 19:11:34 2011
@@ -0,0 +1,772 @@
+/***
+ * ASM: a very small and fast Java bytecode manipulation framework
+ * Copyright (c) 2000-2007 INRIA, France Telecom
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.objectweb.asm;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+
+/**
+ * A Java type. This class can be used to make it easier to manipulate type and
+ * method descriptors.
+ * 
+ * @author Eric Bruneton
+ * @author Chris Nokleberg
+ */
+public class Type {
+
+    /**
+     * The sort of the <tt>void</tt> type. See {@link #getSort getSort}.
+     */
+    public static final int VOID = 0;
+
+    /**
+     * The sort of the <tt>boolean</tt> type. See {@link #getSort getSort}.
+     */
+    public static final int BOOLEAN = 1;
+
+    /**
+     * The sort of the <tt>char</tt> type. See {@link #getSort getSort}.
+     */
+    public static final int CHAR = 2;
+
+    /**
+     * The sort of the <tt>byte</tt> type. See {@link #getSort getSort}.
+     */
+    public static final int BYTE = 3;
+
+    /**
+     * The sort of the <tt>short</tt> type. See {@link #getSort getSort}.
+     */
+    public static final int SHORT = 4;
+
+    /**
+     * The sort of the <tt>int</tt> type. See {@link #getSort getSort}.
+     */
+    public static final int INT = 5;
+
+    /**
+     * The sort of the <tt>float</tt> type. See {@link #getSort getSort}.
+     */
+    public static final int FLOAT = 6;
+
+    /**
+     * The sort of the <tt>long</tt> type. See {@link #getSort getSort}.
+     */
+    public static final int LONG = 7;
+
+    /**
+     * The sort of the <tt>double</tt> type. See {@link #getSort getSort}.
+     */
+    public static final int DOUBLE = 8;
+
+    /**
+     * The sort of array reference types. See {@link #getSort getSort}.
+     */
+    public static final int ARRAY = 9;
+
+    /**
+     * The sort of object reference type. See {@link #getSort getSort}.
+     */
+    public static final int OBJECT = 10;
+
+    /**
+     * The <tt>void</tt> type.
+     */
+    public static final Type VOID_TYPE = new Type(VOID, null, ('V' << 24)
+            | (5 << 16) | (0 << 8) | 0, 1);
+
+    /**
+     * The <tt>boolean</tt> type.
+     */
+    public static final Type BOOLEAN_TYPE = new Type(BOOLEAN, null, ('Z' << 24)
+            | (0 << 16) | (5 << 8) | 1, 1);
+
+    /**
+     * The <tt>char</tt> type.
+     */
+    public static final Type CHAR_TYPE = new Type(CHAR, null, ('C' << 24)
+            | (0 << 16) | (6 << 8) | 1, 1);
+
+    /**
+     * The <tt>byte</tt> type.
+     */
+    public static final Type BYTE_TYPE = new Type(BYTE, null, ('B' << 24)
+            | (0 << 16) | (5 << 8) | 1, 1);
+
+    /**
+     * The <tt>short</tt> type.
+     */
+    public static final Type SHORT_TYPE = new Type(SHORT, null, ('S' << 24)
+            | (0 << 16) | (7 << 8) | 1, 1);
+
+    /**
+     * The <tt>int</tt> type.
+     */
+    public static final Type INT_TYPE = new Type(INT, null, ('I' << 24)
+            | (0 << 16) | (0 << 8) | 1, 1);
+
+    /**
+     * The <tt>float</tt> type.
+     */
+    public static final Type FLOAT_TYPE = new Type(FLOAT, null, ('F' << 24)
+            | (2 << 16) | (2 << 8) | 1, 1);
+
+    /**
+     * The <tt>long</tt> type.
+     */
+    public static final Type LONG_TYPE = new Type(LONG, null, ('J' << 24)
+            | (1 << 16) | (1 << 8) | 2, 1);
+
+    /**
+     * The <tt>double</tt> type.
+     */
+    public static final Type DOUBLE_TYPE = new Type(DOUBLE, null, ('D' << 24)
+            | (3 << 16) | (3 << 8) | 2, 1);
+
+    // ------------------------------------------------------------------------
+    // Fields
+    // ------------------------------------------------------------------------
+
+    /**
+     * The sort of this Java type.
+     */
+    private final int sort;
+
+    /**
+     * A buffer containing the internal name of this Java type. This field is
+     * only used for reference types.
+     */
+    private final char[] buf;
+
+    /**
+     * The offset of the internal name of this Java type in {@link #buf buf} or,
+     * for primitive types, the size, descriptor and getOpcode offsets for this
+     * type (byte 0 contains the size, byte 1 the descriptor, byte 2 the offset
+     * for IALOAD or IASTORE, byte 3 the offset for all other instructions).
+     */
+    private final int off;
+
+    /**
+     * The length of the internal name of this Java type.
+     */
+    private final int len;
+
+    // ------------------------------------------------------------------------
+    // Constructors
+    // ------------------------------------------------------------------------
+
+    /**
+     * Constructs a reference type.
+     * 
+     * @param sort the sort of the reference type to be constructed.
+     * @param buf a buffer containing the descriptor of the previous type.
+     * @param off the offset of this descriptor in the previous buffer.
+     * @param len the length of this descriptor.
+     */
+    private Type(final int sort, final char[] buf, final int off, final int len)
+    {
+        this.sort = sort;
+        this.buf = buf;
+        this.off = off;
+        this.len = len;
+    }
+
+    /**
+     * Returns the Java type corresponding to the given type descriptor.
+     * 
+     * @param typeDescriptor a type descriptor.
+     * @return the Java type corresponding to the given type descriptor.
+     */
+    public static Type getType(final String typeDescriptor) {
+        return getType(typeDescriptor.toCharArray(), 0);
+    }
+
+    /**
+     * Returns the Java type corresponding to the given internal name.
+     * 
+     * @param internalName an internal name.
+     * @return the Java type corresponding to the given internal name.
+     */
+    public static Type getObjectType(final String internalName) {
+        char[] buf = internalName.toCharArray();
+        return new Type(buf[0] == '[' ? ARRAY : OBJECT, buf, 0, buf.length);
+    }
+
+    /**
+     * Returns the Java type corresponding to the given class.
+     * 
+     * @param c a class.
+     * @return the Java type corresponding to the given class.
+     */
+    public static Type getType(final Class c) {
+        if (c.isPrimitive()) {
+            if (c == Integer.TYPE) {
+                return INT_TYPE;
+            } else if (c == Void.TYPE) {
+                return VOID_TYPE;
+            } else if (c == Boolean.TYPE) {
+                return BOOLEAN_TYPE;
+            } else if (c == Byte.TYPE) {
+                return BYTE_TYPE;
+            } else if (c == Character.TYPE) {
+                return CHAR_TYPE;
+            } else if (c == Short.TYPE) {
+                return SHORT_TYPE;
+            } else if (c == Double.TYPE) {
+                return DOUBLE_TYPE;
+            } else if (c == Float.TYPE) {
+                return FLOAT_TYPE;
+            } else /* if (c == Long.TYPE) */{
+                return LONG_TYPE;
+            }
+        } else {
+            return getType(getDescriptor(c));
+        }
+    }
+
+    /**
+     * Returns the Java types corresponding to the argument types of the given
+     * method descriptor.
+     * 
+     * @param methodDescriptor a method descriptor.
+     * @return the Java types corresponding to the argument types of the given
+     *         method descriptor.
+     */
+    public static Type[] getArgumentTypes(final String methodDescriptor) {
+        char[] buf = methodDescriptor.toCharArray();
+        int off = 1;
+        int size = 0;
+        while (true) {
+            char car = buf[off++];
+            if (car == ')') {
+                break;
+            } else if (car == 'L') {
+                while (buf[off++] != ';') {
+                }
+                ++size;
+            } else if (car != '[') {
+                ++size;
+            }
+        }
+        Type[] args = new Type[size];
+        off = 1;
+        size = 0;
+        while (buf[off] != ')') {
+            args[size] = getType(buf, off);
+            off += args[size].len + (args[size].sort == OBJECT ? 2 : 0);
+            size += 1;
+        }
+        return args;
+    }
+
+    /**
+     * Returns the Java types corresponding to the argument types of the given
+     * method.
+     * 
+     * @param method a method.
+     * @return the Java types corresponding to the argument types of the given
+     *         method.
+     */
+    public static Type[] getArgumentTypes(final Method method) {
+        Class[] classes = method.getParameterTypes();
+        Type[] types = new Type[classes.length];
+        for (int i = classes.length - 1; i >= 0; --i) {
+            types[i] = getType(classes[i]);
+        }
+        return types;
+    }
+
+    /**
+     * Returns the Java type corresponding to the return type of the given
+     * method descriptor.
+     * 
+     * @param methodDescriptor a method descriptor.
+     * @return the Java type corresponding to the return type of the given
+     *         method descriptor.
+     */
+    public static Type getReturnType(final String methodDescriptor) {
+        char[] buf = methodDescriptor.toCharArray();
+        return getType(buf, methodDescriptor.indexOf(')') + 1);
+    }
+
+    /**
+     * Returns the Java type corresponding to the return type of the given
+     * method.
+     * 
+     * @param method a method.
+     * @return the Java type corresponding to the return type of the given
+     *         method.
+     */
+    public static Type getReturnType(final Method method) {
+        return getType(method.getReturnType());
+    }
+
+    /**
+     * Computes the size of the arguments and of the return value of a method.
+     * 
+     * @param desc the descriptor of a method.
+     * @return the size of the arguments of the method (plus one for the
+     *         implicit this argument), argSize, and the size of its return
+     *         value, retSize, packed into a single int i =
+     *         <tt>(argSize << 2) | retSize</tt> (argSize is therefore equal
+     *         to <tt>i >> 2</tt>, and retSize to <tt>i & 0x03</tt>).
+     */
+    public static int getArgumentsAndReturnSizes(final String desc) {
+        int n = 1;
+        int c = 1;
+        while (true) {
+            char car = desc.charAt(c++);
+            if (car == ')') {
+                car = desc.charAt(c);
+                return n << 2
+                        | (car == 'V' ? 0 : (car == 'D' || car == 'J' ? 2 : 1));
+            } else if (car == 'L') {
+                while (desc.charAt(c++) != ';') {
+                }
+                n += 1;
+            } else if (car == '[') {
+                while ((car = desc.charAt(c)) == '[') {
+                    ++c;
+                }
+                if (car == 'D' || car == 'J') {
+                    n -= 1;
+                }
+            } else if (car == 'D' || car == 'J') {
+                n += 2;
+            } else {
+                n += 1;
+            }
+        }
+    }
+
+    /**
+     * Returns the Java type corresponding to the given type descriptor.
+     * 
+     * @param buf a buffer containing a type descriptor.
+     * @param off the offset of this descriptor in the previous buffer.
+     * @return the Java type corresponding to the given type descriptor.
+     */
+    private static Type getType(final char[] buf, final int off) {
+        int len;
+        switch (buf[off]) {
+            case 'V':
+                return VOID_TYPE;
+            case 'Z':
+                return BOOLEAN_TYPE;
+            case 'C':
+                return CHAR_TYPE;
+            case 'B':
+                return BYTE_TYPE;
+            case 'S':
+                return SHORT_TYPE;
+            case 'I':
+                return INT_TYPE;
+            case 'F':
+                return FLOAT_TYPE;
+            case 'J':
+                return LONG_TYPE;
+            case 'D':
+                return DOUBLE_TYPE;
+            case '[':
+                len = 1;
+                while (buf[off + len] == '[') {
+                    ++len;
+                }
+                if (buf[off + len] == 'L') {
+                    ++len;
+                    while (buf[off + len] != ';') {
+                        ++len;
+                    }
+                }
+                return new Type(ARRAY, buf, off, len + 1);
+                // case 'L':
+            default:
+                len = 1;
+                while (buf[off + len] != ';') {
+                    ++len;
+                }
+                return new Type(OBJECT, buf, off + 1, len - 1);
+        }
+    }
+
+    // ------------------------------------------------------------------------
+    // Accessors
+    // ------------------------------------------------------------------------
+
+    /**
+     * Returns the sort of this Java type.
+     * 
+     * @return {@link #VOID VOID}, {@link #BOOLEAN BOOLEAN},
+     *         {@link #CHAR CHAR}, {@link #BYTE BYTE}, {@link #SHORT SHORT},
+     *         {@link #INT INT}, {@link #FLOAT FLOAT}, {@link #LONG LONG},
+     *         {@link #DOUBLE DOUBLE}, {@link #ARRAY ARRAY} or
+     *         {@link #OBJECT OBJECT}.
+     */
+    public int getSort() {
+        return sort;
+    }
+
+    /**
+     * Returns the number of dimensions of this array type. This method should
+     * only be used for an array type.
+     * 
+     * @return the number of dimensions of this array type.
+     */
+    public int getDimensions() {
+        int i = 1;
+        while (buf[off + i] == '[') {
+            ++i;
+        }
+        return i;
+    }
+
+    /**
+     * Returns the type of the elements of this array type. This method should
+     * only be used for an array type.
+     * 
+     * @return Returns the type of the elements of this array type.
+     */
+    public Type getElementType() {
+        return getType(buf, off + getDimensions());
+    }
+
+    /**
+     * Returns the name of the class corresponding to this type.
+     * 
+     * @return the fully qualified name of the class corresponding to this type.
+     */
+    public String getClassName() {
+        switch (sort) {
+            case VOID:
+                return "void";
+            case BOOLEAN:
+                return "boolean";
+            case CHAR:
+                return "char";
+            case BYTE:
+                return "byte";
+            case SHORT:
+                return "short";
+            case INT:
+                return "int";
+            case FLOAT:
+                return "float";
+            case LONG:
+                return "long";
+            case DOUBLE:
+                return "double";
+            case ARRAY:
+                StringBuffer b = new StringBuffer(getElementType().getClassName());
+                for (int i = getDimensions(); i > 0; --i) {
+                    b.append("[]");
+                }
+                return b.toString();
+                // case OBJECT:
+            default:
+                return new String(buf, off, len).replace('/', '.');
+        }
+    }
+
+    /**
+     * Returns the internal name of the class corresponding to this object or
+     * array type. The internal name of a class is its fully qualified name (as
+     * returned by Class.getName(), where '.' are replaced by '/'. This method
+     * should only be used for an object or array type.
+     * 
+     * @return the internal name of the class corresponding to this object type.
+     */
+    public String getInternalName() {
+        return new String(buf, off, len);
+    }
+
+    // ------------------------------------------------------------------------
+    // Conversion to type descriptors
+    // ------------------------------------------------------------------------
+
+    /**
+     * Returns the descriptor corresponding to this Java type.
+     * 
+     * @return the descriptor corresponding to this Java type.
+     */
+    public String getDescriptor() {
+        StringBuffer buf = new StringBuffer();
+        getDescriptor(buf);
+        return buf.toString();
+    }
+
+    /**
+     * Returns the descriptor corresponding to the given argument and return
+     * types.
+     * 
+     * @param returnType the return type of the method.
+     * @param argumentTypes the argument types of the method.
+     * @return the descriptor corresponding to the given argument and return
+     *         types.
+     */
+    public static String getMethodDescriptor(
+        final Type returnType,
+        final Type[] argumentTypes)
+    {
+        StringBuffer buf = new StringBuffer();
+        buf.append('(');
+        for (int i = 0; i < argumentTypes.length; ++i) {
+            argumentTypes[i].getDescriptor(buf);
+        }
+        buf.append(')');
+        returnType.getDescriptor(buf);
+        return buf.toString();
+    }
+
+    /**
+     * Appends the descriptor corresponding to this Java type to the given
+     * string buffer.
+     * 
+     * @param buf the string buffer to which the descriptor must be appended.
+     */
+    private void getDescriptor(final StringBuffer buf) {
+        if (this.buf == null) {
+            // descriptor is in byte 3 of 'off' for primitive types (buf == null)
+            buf.append((char) ((off & 0xFF000000) >>> 24));
+        } else if (sort == ARRAY) {
+            buf.append(this.buf, off, len);
+        } else { // sort == OBJECT
+            buf.append('L');
+            buf.append(this.buf, off, len);
+            buf.append(';');
+        }
+    }
+
+    // ------------------------------------------------------------------------
+    // Direct conversion from classes to type descriptors,
+    // without intermediate Type objects
+    // ------------------------------------------------------------------------
+
+    /**
+     * Returns the internal name of the given class. The internal name of a
+     * class is its fully qualified name, as returned by Class.getName(), where
+     * '.' are replaced by '/'.
+     * 
+     * @param c an object or array class.
+     * @return the internal name of the given class.
+     */
+    public static String getInternalName(final Class c) {
+        return c.getName().replace('.', '/');
+    }
+
+    /**
+     * Returns the descriptor corresponding to the given Java type.
+     * 
+     * @param c an object class, a primitive class or an array class.
+     * @return the descriptor corresponding to the given class.
+     */
+    public static String getDescriptor(final Class c) {
+        StringBuffer buf = new StringBuffer();
+        getDescriptor(buf, c);
+        return buf.toString();
+    }
+
+    /**
+     * Returns the descriptor corresponding to the given constructor.
+     * 
+     * @param c a {@link Constructor Constructor} object.
+     * @return the descriptor of the given constructor.
+     */
+    public static String getConstructorDescriptor(final Constructor c) {
+        Class[] parameters = c.getParameterTypes();
+        StringBuffer buf = new StringBuffer();
+        buf.append('(');
+        for (int i = 0; i < parameters.length; ++i) {
+            getDescriptor(buf, parameters[i]);
+        }
+        return buf.append(")V").toString();
+    }
+
+    /**
+     * Returns the descriptor corresponding to the given method.
+     * 
+     * @param m a {@link Method Method} object.
+     * @return the descriptor of the given method.
+     */
+    public static String getMethodDescriptor(final Method m) {
+        Class[] parameters = m.getParameterTypes();
+        StringBuffer buf = new StringBuffer();
+        buf.append('(');
+        for (int i = 0; i < parameters.length; ++i) {
+            getDescriptor(buf, parameters[i]);
+        }
+        buf.append(')');
+        getDescriptor(buf, m.getReturnType());
+        return buf.toString();
+    }
+
+    /**
+     * Appends the descriptor of the given class to the given string buffer.
+     * 
+     * @param buf the string buffer to which the descriptor must be appended.
+     * @param c the class whose descriptor must be computed.
+     */
+    private static void getDescriptor(final StringBuffer buf, final Class c) {
+        Class d = c;
+        while (true) {
+            if (d.isPrimitive()) {
+                char car;
+                if (d == Integer.TYPE) {
+                    car = 'I';
+                } else if (d == Void.TYPE) {
+                    car = 'V';
+                } else if (d == Boolean.TYPE) {
+                    car = 'Z';
+                } else if (d == Byte.TYPE) {
+                    car = 'B';
+                } else if (d == Character.TYPE) {
+                    car = 'C';
+                } else if (d == Short.TYPE) {
+                    car = 'S';
+                } else if (d == Double.TYPE) {
+                    car = 'D';
+                } else if (d == Float.TYPE) {
+                    car = 'F';
+                } else /* if (d == Long.TYPE) */{
+                    car = 'J';
+                }
+                buf.append(car);
+                return;
+            } else if (d.isArray()) {
+                buf.append('[');
+                d = d.getComponentType();
+            } else {
+                buf.append('L');
+                String name = d.getName();
+                int len = name.length();
+                for (int i = 0; i < len; ++i) {
+                    char car = name.charAt(i);
+                    buf.append(car == '.' ? '/' : car);
+                }
+                buf.append(';');
+                return;
+            }
+        }
+    }
+
+    // ------------------------------------------------------------------------
+    // Corresponding size and opcodes
+    // ------------------------------------------------------------------------
+
+    /**
+     * Returns the size of values of this type.
+     * 
+     * @return the size of values of this type, i.e., 2 for <tt>long</tt> and
+     *         <tt>double</tt>, 0 for <tt>void</tt> and 1 otherwise.
+     */
+    public int getSize() {
+        // the size is in byte 0 of 'off' for primitive types (buf == null)
+        return buf == null ? (off & 0xFF) : 1;
+    }
+
+    /**
+     * Returns a JVM instruction opcode adapted to this Java type.
+     * 
+     * @param opcode a JVM instruction opcode. This opcode must be one of ILOAD,
+     *        ISTORE, IALOAD, IASTORE, IADD, ISUB, IMUL, IDIV, IREM, INEG, ISHL,
+     *        ISHR, IUSHR, IAND, IOR, IXOR and IRETURN.
+     * @return an opcode that is similar to the given opcode, but adapted to
+     *         this Java type. For example, if this type is <tt>float</tt> and
+     *         <tt>opcode</tt> is IRETURN, this method returns FRETURN.
+     */
+    public int getOpcode(final int opcode) {
+        if (opcode == Opcodes.IALOAD || opcode == Opcodes.IASTORE) {
+            // the offset for IALOAD or IASTORE is in byte 1 of 'off' for
+            // primitive types (buf == null)
+            return opcode + (buf == null ? (off & 0xFF00) >> 8 : 4);
+        } else {
+            // the offset for other instructions is in byte 2 of 'off' for
+            // primitive types (buf == null)
+            return opcode + (buf == null ? (off & 0xFF0000) >> 16 : 4);
+        }
+    }
+
+    // ------------------------------------------------------------------------
+    // Equals, hashCode and toString
+    // ------------------------------------------------------------------------
+
+    /**
+     * Tests if the given object is equal to this type.
+     * 
+     * @param o the object to be compared to this type.
+     * @return <tt>true</tt> if the given object is equal to this type.
+     */
+    public boolean equals(final Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (!(o instanceof Type)) {
+            return false;
+        }
+        Type t = (Type) o;
+        if (sort != t.sort) {
+            return false;
+        }
+        if (sort == OBJECT || sort == ARRAY) {
+            if (len != t.len) {
+                return false;
+            }
+            for (int i = off, j = t.off, end = i + len; i < end; i++, j++) {
+                if (buf[i] != t.buf[j]) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Returns a hash code value for this type.
+     * 
+     * @return a hash code value for this type.
+     */
+    public int hashCode() {
+        int hc = 13 * sort;
+        if (sort == OBJECT || sort == ARRAY) {
+            for (int i = off, end = i + len; i < end; i++) {
+                hc = 17 * (hc + buf[i]);
+            }
+        }
+        return hc;
+    }
+
+    /**
+     * Returns a string representation of this type.
+     * 
+     * @return the descriptor of this type.
+     */
+    public String toString() {
+        return getDescriptor();
+    }
+}

Added: tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/attrs/package.html
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/attrs/package.html?rev=1089584&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/attrs/package.html (added)
+++ tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/attrs/package.html Wed Apr  6 19:11:34 2011
@@ -0,0 +1,48 @@
+<html>
+<!--
+ * ASM: a very small and fast Java bytecode manipulation framework
+ * Copyright (c) 2000-2005 INRIA, France Telecom
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+-->
+<body>
+Provides an implementation for optional class, field and method attributes.
+
+<p>
+
+By default ASM strips optional attributes, in order to keep them in
+the bytecode that is being readed you should pass an array of required attribute
+instances to {@link org.objectweb.asm.ClassReader#accept(org.objectweb.asm.ClassVisitor, org.objectweb.asm.Attribute[], boolean) ClassReader.accept()} method.
+In order to add custom attributes to the manually constructed bytecode concrete
+subclasses of the {@link org.objectweb.asm.Attribute Attribute} can be passed to 
+the visitAttribute methods of the 
+{@link org.objectweb.asm.ClassVisitor ClassVisitor}, 
+{@link org.objectweb.asm.FieldVisitor FieldVisitor} and
+{@link org.objectweb.asm.MethodVisitor MethodVisitor} interfaces.
+
+@since ASM 1.4.1
+</body>
+</html>

Added: tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/commons/AdviceAdapter.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/commons/AdviceAdapter.java?rev=1089584&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/commons/AdviceAdapter.java (added)
+++ tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/commons/AdviceAdapter.java Wed Apr  6 19:11:34 2011
@@ -0,0 +1,613 @@
+/***
+ * ASM: a very small and fast Java bytecode manipulation framework
+ * Copyright (c) 2000-2007 INRIA, France Telecom
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.objectweb.asm.commons;
+
+import org.objectweb.asm.Label;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * A {@link org.objectweb.asm.MethodAdapter} to insert before, after and around
+ * advices in methods and constructors. <p> The behavior for constructors is
+ * like this: <ol>
+ *
+ * <li>as long as the INVOKESPECIAL for the object initialization has not been
+ * reached, every bytecode instruction is dispatched in the ctor code visitor</li>
+ *
+ * <li>when this one is reached, it is only added in the ctor code visitor and
+ * a JP invoke is added</li>
+ *
+ * <li>after that, only the other code visitor receives the instructions</li>
+ *
+ * </ol>
+ *
+ * @author Eugene Kuleshov
+ * @author Eric Bruneton
+ */
+public abstract class AdviceAdapter extends GeneratorAdapter implements Opcodes
+{
+    private static final Object THIS = new Object();
+    private static final Object OTHER = new Object();
+
+    protected int methodAccess;
+    protected String methodDesc;
+
+    private boolean constructor;
+    private boolean superInitialized;
+    private List stackFrame;
+    private Map branches;
+
+    /**
+     * Creates a new {@link AdviceAdapter}.
+     *
+     * @param mv the method visitor to which this adapter delegates calls.
+     * @param access the method's access flags (see {@link Opcodes}).
+     * @param name the method's name.
+     * @param desc the method's descriptor (see {@link Type Type}).
+     */
+    protected AdviceAdapter(
+        final MethodVisitor mv,
+        final int access,
+        final String name,
+        final String desc)
+    {
+        super(mv, access, name, desc);
+        methodAccess = access;
+        methodDesc = desc;
+
+        constructor = "<init>".equals(name);
+    }
+
+    public void visitCode() {
+        mv.visitCode();
+        if (constructor) {
+            stackFrame = new ArrayList();
+            branches = new HashMap();
+        } else {
+            superInitialized = true;
+            onMethodEnter();
+        }
+    }
+
+    public void visitLabel(final Label label) {
+        mv.visitLabel(label);
+
+        if (constructor && branches != null) {
+            List frame = (List) branches.get(label);
+            if (frame != null) {
+                stackFrame = frame;
+                branches.remove(label);
+            }
+        }
+    }
+
+    public void visitInsn(final int opcode) {
+        if (constructor) {
+            int s;
+            switch (opcode) {
+                case RETURN: // empty stack
+                    onMethodExit(opcode);
+                    break;
+
+                case IRETURN: // 1 before n/a after
+                case FRETURN: // 1 before n/a after
+                case ARETURN: // 1 before n/a after
+                case ATHROW: // 1 before n/a after
+                    popValue();
+                    onMethodExit(opcode);
+                    break;
+
+                case LRETURN: // 2 before n/a after
+                case DRETURN: // 2 before n/a after
+                    popValue();
+                    popValue();
+                    onMethodExit(opcode);
+                    break;
+
+                case NOP:
+                case LALOAD: // remove 2 add 2
+                case DALOAD: // remove 2 add 2
+                case LNEG:
+                case DNEG:
+                case FNEG:
+                case INEG:
+                case L2D:
+                case D2L:
+                case F2I:
+                case I2B:
+                case I2C:
+                case I2S:
+                case I2F:
+                case ARRAYLENGTH:
+                    break;
+
+                case ACONST_NULL:
+                case ICONST_M1:
+                case ICONST_0:
+                case ICONST_1:
+                case ICONST_2:
+                case ICONST_3:
+                case ICONST_4:
+                case ICONST_5:
+                case FCONST_0:
+                case FCONST_1:
+                case FCONST_2:
+                case F2L: // 1 before 2 after
+                case F2D:
+                case I2L:
+                case I2D:
+                    pushValue(OTHER);
+                    break;
+
+                case LCONST_0:
+                case LCONST_1:
+                case DCONST_0:
+                case DCONST_1:
+                    pushValue(OTHER);
+                    pushValue(OTHER);
+                    break;
+
+                case IALOAD: // remove 2 add 1
+                case FALOAD: // remove 2 add 1
+                case AALOAD: // remove 2 add 1
+                case BALOAD: // remove 2 add 1
+                case CALOAD: // remove 2 add 1
+                case SALOAD: // remove 2 add 1
+                case POP:
+                case IADD:
+                case FADD:
+                case ISUB:
+                case LSHL: // 3 before 2 after
+                case LSHR: // 3 before 2 after
+                case LUSHR: // 3 before 2 after
+                case L2I: // 2 before 1 after
+                case L2F: // 2 before 1 after
+                case D2I: // 2 before 1 after
+                case D2F: // 2 before 1 after
+                case FSUB:
+                case FMUL:
+                case FDIV:
+                case FREM:
+                case FCMPL: // 2 before 1 after
+                case FCMPG: // 2 before 1 after
+                case IMUL:
+                case IDIV:
+                case IREM:
+                case ISHL:
+                case ISHR:
+                case IUSHR:
+                case IAND:
+                case IOR:
+                case IXOR:
+                case MONITORENTER:
+                case MONITOREXIT:
+                    popValue();
+                    break;
+
+                case POP2:
+                case LSUB:
+                case LMUL:
+                case LDIV:
+                case LREM:
+                case LADD:
+                case LAND:
+                case LOR:
+                case LXOR:
+                case DADD:
+                case DMUL:
+                case DSUB:
+                case DDIV:
+                case DREM:
+                    popValue();
+                    popValue();
+                    break;
+
+                case IASTORE:
+                case FASTORE:
+                case AASTORE:
+                case BASTORE:
+                case CASTORE:
+                case SASTORE:
+                case LCMP: // 4 before 1 after
+                case DCMPL:
+                case DCMPG:
+                    popValue();
+                    popValue();
+                    popValue();
+                    break;
+
+                case LASTORE:
+                case DASTORE:
+                    popValue();
+                    popValue();
+                    popValue();
+                    popValue();
+                    break;
+
+                case DUP:
+                    pushValue(peekValue());
+                    break;
+
+                case DUP_X1:
+                    s = stackFrame.size();
+                    stackFrame.add(s - 2, stackFrame.get(s - 1));
+                    break;
+
+                case DUP_X2:
+                    s = stackFrame.size();
+                    stackFrame.add(s - 3, stackFrame.get(s - 1));
+                    break;
+
+                case DUP2:
+                    s = stackFrame.size();
+                    stackFrame.add(s - 2, stackFrame.get(s - 1));
+                    stackFrame.add(s - 2, stackFrame.get(s - 1));
+                    break;
+
+                case DUP2_X1:
+                    s = stackFrame.size();
+                    stackFrame.add(s - 3, stackFrame.get(s - 1));
+                    stackFrame.add(s - 3, stackFrame.get(s - 1));
+                    break;
+
+                case DUP2_X2:
+                    s = stackFrame.size();
+                    stackFrame.add(s - 4, stackFrame.get(s - 1));
+                    stackFrame.add(s - 4, stackFrame.get(s - 1));
+                    break;
+
+                case SWAP:
+                    s = stackFrame.size();
+                    stackFrame.add(s - 2, stackFrame.get(s - 1));
+                    stackFrame.remove(s);
+                    break;
+            }
+        } else {
+            switch (opcode) {
+                case RETURN:
+                case IRETURN:
+                case FRETURN:
+                case ARETURN:
+                case LRETURN:
+                case DRETURN:
+                case ATHROW:
+                    onMethodExit(opcode);
+                    break;
+            }
+        }
+        mv.visitInsn(opcode);
+    }
+
+    public void visitVarInsn(final int opcode, final int var) {
+        super.visitVarInsn(opcode, var);
+
+        if (constructor) {
+            switch (opcode) {
+                case ILOAD:
+                case FLOAD:
+                    pushValue(OTHER);
+                    break;
+                case LLOAD:
+                case DLOAD:
+                    pushValue(OTHER);
+                    pushValue(OTHER);
+                    break;
+                case ALOAD:
+                    pushValue(var == 0 ? THIS : OTHER);
+                    break;
+                case ASTORE:
+                case ISTORE:
+                case FSTORE:
+                    popValue();
+                    break;
+                case LSTORE:
+                case DSTORE:
+                    popValue();
+                    popValue();
+                    break;
+            }
+        }
+    }
+
+    public void visitFieldInsn(
+        final int opcode,
+        final String owner,
+        final String name,
+        final String desc)
+    {
+        mv.visitFieldInsn(opcode, owner, name, desc);
+
+        if (constructor) {
+            char c = desc.charAt(0);
+            boolean longOrDouble = c == 'J' || c == 'D';
+            switch (opcode) {
+                case GETSTATIC:
+                    pushValue(OTHER);
+                    if (longOrDouble) {
+                        pushValue(OTHER);
+                    }
+                    break;
+                case PUTSTATIC:
+                    popValue();
+                    if (longOrDouble) {
+                        popValue();
+                    }
+                    break;
+                case PUTFIELD:
+                    popValue();
+                    if (longOrDouble) {
+                        popValue();
+                        popValue();
+                    }
+                    break;
+                // case GETFIELD:
+                default:
+                    if (longOrDouble) {
+                        pushValue(OTHER);
+                    }
+            }
+        }
+    }
+
+    public void visitIntInsn(final int opcode, final int operand) {
+        mv.visitIntInsn(opcode, operand);
+
+        if (constructor && opcode!=NEWARRAY) {
+            pushValue(OTHER);
+        }
+    }
+
+    public void visitLdcInsn(final Object cst) {
+        mv.visitLdcInsn(cst);
+
+        if (constructor) {
+            pushValue(OTHER);
+            if (cst instanceof Double || cst instanceof Long) {
+                pushValue(OTHER);
+            }
+        }
+    }
+
+    public void visitMultiANewArrayInsn(final String desc, final int dims) {
+        mv.visitMultiANewArrayInsn(desc, dims);
+
+        if (constructor) {
+            for (int i = 0; i < dims; i++) {
+                popValue();
+            }
+            pushValue(OTHER);
+        }
+    }
+
+    public void visitTypeInsn(final int opcode, final String type) {
+        mv.visitTypeInsn(opcode, type);
+
+        // ANEWARRAY, CHECKCAST or INSTANCEOF don't change stack
+        if (constructor && opcode == NEW) {
+            pushValue(OTHER);
+        }
+    }
+
+    public void visitMethodInsn(
+        final int opcode,
+        final String owner,
+        final String name,
+        final String desc)
+    {
+        mv.visitMethodInsn(opcode, owner, name, desc);
+
+        if (constructor) {
+            Type[] types = Type.getArgumentTypes(desc);
+            for (int i = 0; i < types.length; i++) {
+                popValue();
+                if (types[i].getSize() == 2) {
+                    popValue();
+                }
+            }
+            switch (opcode) {
+                // case INVOKESTATIC:
+                // case INVOKEDYNAMIC
+                // break;
+
+                case INVOKEINTERFACE:
+                case INVOKEVIRTUAL:
+                    popValue(); // objectref
+                    break;
+
+                case INVOKESPECIAL:
+                    Object type = popValue(); // objectref
+                    if (type == THIS && !superInitialized) {
+                        onMethodEnter();
+                        superInitialized = true;
+                        // once super has been initialized it is no longer
+                        // necessary to keep track of stack state
+                        constructor = false;
+                    }
+                    break;
+            }
+
+            Type returnType = Type.getReturnType(desc);
+            if (returnType != Type.VOID_TYPE) {
+                pushValue(OTHER);
+                if (returnType.getSize() == 2) {
+                    pushValue(OTHER);
+                }
+            }
+        }
+    }
+
+    public void visitJumpInsn(final int opcode, final Label label) {
+        mv.visitJumpInsn(opcode, label);
+
+        if (constructor) {
+            switch (opcode) {
+                case IFEQ:
+                case IFNE:
+                case IFLT:
+                case IFGE:
+                case IFGT:
+                case IFLE:
+                case IFNULL:
+                case IFNONNULL:
+                    popValue();
+                    break;
+
+                case IF_ICMPEQ:
+                case IF_ICMPNE:
+                case IF_ICMPLT:
+                case IF_ICMPGE:
+                case IF_ICMPGT:
+                case IF_ICMPLE:
+                case IF_ACMPEQ:
+                case IF_ACMPNE:
+                    popValue();
+                    popValue();
+                    break;
+
+                case JSR:
+                    pushValue(OTHER);
+                    break;
+            }
+            addBranch(label);
+        }
+    }
+
+    public void visitLookupSwitchInsn(
+        final Label dflt,
+        final int[] keys,
+        final Label[] labels)
+    {
+        mv.visitLookupSwitchInsn(dflt, keys, labels);
+
+        if (constructor) {
+            popValue();
+            addBranches(dflt, labels);
+        }
+    }
+
+    public void visitTableSwitchInsn(
+        final int min,
+        final int max,
+        final Label dflt,
+        final Label[] labels)
+    {
+        mv.visitTableSwitchInsn(min, max, dflt, labels);
+
+        if (constructor) {
+            popValue();
+            addBranches(dflt, labels);
+        }
+    }
+
+    private void addBranches(final Label dflt, final Label[] labels) {
+        addBranch(dflt);
+        for (int i = 0; i < labels.length; i++) {
+            addBranch(labels[i]);
+        }
+    }
+
+    private void addBranch(final Label label) {
+        if (branches.containsKey(label)) {
+            return;
+        }
+        branches.put(label, new ArrayList(stackFrame));
+    }
+
+    private Object popValue() {
+        return stackFrame.remove(stackFrame.size() - 1);
+    }
+
+    private Object peekValue() {
+        return stackFrame.get(stackFrame.size() - 1);
+    }
+
+    private void pushValue(final Object o) {
+        stackFrame.add(o);
+    }
+
+    /**
+     * Called at the beginning of the method or after super class class call in
+     * the constructor. <br><br>
+     *
+     * <i>Custom code can use or change all the local variables, but should not
+     * change state of the stack.</i>
+     */
+    protected void onMethodEnter() {
+    }
+
+    /**
+     * Called before explicit exit from the method using either return or throw.
+     * Top element on the stack contains the return value or exception instance.
+     * For example:
+     *
+     * <pre>
+     *   public void onMethodExit(int opcode) {
+     *     if(opcode==RETURN) {
+     *         visitInsn(ACONST_NULL);
+     *     } else if(opcode==ARETURN || opcode==ATHROW) {
+     *         dup();
+     *     } else {
+     *         if(opcode==LRETURN || opcode==DRETURN) {
+     *             dup2();
+     *         } else {
+     *             dup();
+     *         }
+     *         box(Type.getReturnType(this.methodDesc));
+     *     }
+     *     visitIntInsn(SIPUSH, opcode);
+     *     visitMethodInsn(INVOKESTATIC, owner, "onExit", "(Ljava/lang/Object;I)V");
+     *   }
+     *
+     *   // an actual call back method
+     *   public static void onExit(Object param, int opcode) {
+     *     ...
+     * </pre>
+     *
+     * <br><br>
+     *
+     * <i>Custom code can use or change all the local variables, but should not
+     * change state of the stack.</i>
+     *
+     * @param opcode one of the RETURN, IRETURN, FRETURN, ARETURN, LRETURN,
+     *        DRETURN or ATHROW
+     *
+     */
+    protected void onMethodExit(int opcode) {
+    }
+
+    // TODO onException, onMethodCall
+
+}