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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 [3/21] - 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/ClassVisitor.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/ClassVisitor.java?rev=1089584&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/ClassVisitor.java (added)
+++ tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/ClassVisitor.java Wed Apr 6 19:11:34 2011
@@ -0,0 +1,196 @@
+/***
+ * 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;
+
+/**
+ * A visitor to visit a Java class. The methods of this interface must be called
+ * in the following order: <tt>visit</tt> [ <tt>visitSource</tt> ] [
+ * <tt>visitOuterClass</tt> ] ( <tt>visitAnnotation</tt> |
+ * <tt>visitAttribute</tt> )* (<tt>visitInnerClass</tt> |
+ * <tt>visitField</tt> | <tt>visitMethod</tt> )* <tt>visitEnd</tt>.
+ *
+ * @author Eric Bruneton
+ */
+public interface ClassVisitor {
+
+ /**
+ * Visits the header of the class.
+ *
+ * @param version the class version.
+ * @param access the class's access flags (see {@link Opcodes}). This
+ * parameter also indicates if the class is deprecated.
+ * @param name the internal name of the class (see
+ * {@link Type#getInternalName() getInternalName}).
+ * @param signature the signature of this class. May be <tt>null</tt> if
+ * the class is not a generic one, and does not extend or implement
+ * generic classes or interfaces.
+ * @param superName the internal of name of the super class (see
+ * {@link Type#getInternalName() getInternalName}). For interfaces,
+ * the super class is {@link Object}. May be <tt>null</tt>, but
+ * only for the {@link Object} class.
+ * @param interfaces the internal names of the class's interfaces (see
+ * {@link Type#getInternalName() getInternalName}). May be
+ * <tt>null</tt>.
+ */
+ void visit(
+ int version,
+ int access,
+ String name,
+ String signature,
+ String superName,
+ String[] interfaces);
+
+ /**
+ * Visits the source of the class.
+ *
+ * @param source the name of the source file from which the class was
+ * compiled. May be <tt>null</tt>.
+ * @param debug additional debug information to compute the correspondance
+ * between source and compiled elements of the class. May be
+ * <tt>null</tt>.
+ */
+ void visitSource(String source, String debug);
+
+ /**
+ * Visits the enclosing class of the class. This method must be called only
+ * if the class has an enclosing class.
+ *
+ * @param owner internal name of the enclosing class of the class.
+ * @param name the name of the method that contains the class, or
+ * <tt>null</tt> if the class is not enclosed in a method of its
+ * enclosing class.
+ * @param desc the descriptor of the method that contains the class, or
+ * <tt>null</tt> if the class is not enclosed in a method of its
+ * enclosing class.
+ */
+ void visitOuterClass(String owner, String name, String desc);
+
+ /**
+ * Visits an annotation of the class.
+ *
+ * @param desc the class descriptor of the annotation class.
+ * @param visible <tt>true</tt> if the annotation is visible at runtime.
+ * @return a visitor to visit the annotation values, or <tt>null</tt> if
+ * this visitor is not interested in visiting this annotation.
+ */
+ AnnotationVisitor visitAnnotation(String desc, boolean visible);
+
+ /**
+ * Visits a non standard attribute of the class.
+ *
+ * @param attr an attribute.
+ */
+ void visitAttribute(Attribute attr);
+
+ /**
+ * Visits information about an inner class. This inner class is not
+ * necessarily a member of the class being visited.
+ *
+ * @param name the internal name of an inner class (see
+ * {@link Type#getInternalName() getInternalName}).
+ * @param outerName the internal name of the class to which the inner class
+ * belongs (see {@link Type#getInternalName() getInternalName}). May
+ * be <tt>null</tt> for not member classes.
+ * @param innerName the (simple) name of the inner class inside its
+ * enclosing class. May be <tt>null</tt> for anonymous inner
+ * classes.
+ * @param access the access flags of the inner class as originally declared
+ * in the enclosing class.
+ */
+ void visitInnerClass(
+ String name,
+ String outerName,
+ String innerName,
+ int access);
+
+ /**
+ * Visits a field of the class.
+ *
+ * @param access the field's access flags (see {@link Opcodes}). This
+ * parameter also indicates if the field is synthetic and/or
+ * deprecated.
+ * @param name the field's name.
+ * @param desc the field's descriptor (see {@link Type Type}).
+ * @param signature the field's signature. May be <tt>null</tt> if the
+ * field's type does not use generic types.
+ * @param value the field's initial value. This parameter, which may be
+ * <tt>null</tt> if the field does not have an initial value, must
+ * be an {@link Integer}, a {@link Float}, a {@link Long}, a
+ * {@link Double} or a {@link String} (for <tt>int</tt>,
+ * <tt>float</tt>, <tt>long</tt> or <tt>String</tt> fields
+ * respectively). <i>This parameter is only used for static fields</i>.
+ * Its value is ignored for non static fields, which must be
+ * initialized through bytecode instructions in constructors or
+ * methods.
+ * @return a visitor to visit field annotations and attributes, or
+ * <tt>null</tt> if this class visitor is not interested in
+ * visiting these annotations and attributes.
+ */
+ FieldVisitor visitField(
+ int access,
+ String name,
+ String desc,
+ String signature,
+ Object value);
+
+ /**
+ * Visits a method of the class. This method <i>must</i> return a new
+ * {@link MethodVisitor} instance (or <tt>null</tt>) each time it is
+ * called, i.e., it should not return a previously returned visitor.
+ *
+ * @param access the method's access flags (see {@link Opcodes}). This
+ * parameter also indicates if the method is synthetic and/or
+ * deprecated.
+ * @param name the method's name.
+ * @param desc the method's descriptor (see {@link Type Type}).
+ * @param signature the method's signature. May be <tt>null</tt> if the
+ * method parameters, return type and exceptions do not use generic
+ * types.
+ * @param exceptions the internal names of the method's exception classes
+ * (see {@link Type#getInternalName() getInternalName}). May be
+ * <tt>null</tt>.
+ * @return an object to visit the byte code of the method, or <tt>null</tt>
+ * if this class visitor is not interested in visiting the code of
+ * this method.
+ */
+ MethodVisitor visitMethod(
+ int access,
+ String name,
+ String desc,
+ String signature,
+ String[] exceptions);
+
+ /**
+ * Visits the end of the class. This method, which is the last one to be
+ * called, is used to inform the visitor that all the fields and methods of
+ * the class have been visited.
+ */
+ void visitEnd();
+}
Added: tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/ClassWriter.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/ClassWriter.java?rev=1089584&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/ClassWriter.java (added)
+++ tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/ClassWriter.java Wed Apr 6 19:11:34 2011
@@ -0,0 +1,1369 @@
+/***
+ * 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;
+
+/**
+ * A {@link ClassVisitor} that generates classes in bytecode form. More
+ * precisely this visitor generates a byte array conforming to the Java class
+ * file format. It can be used alone, to generate a Java class "from scratch",
+ * or with one or more {@link ClassReader ClassReader} and adapter class visitor
+ * to generate a modified class from one or more existing Java classes.
+ *
+ * @author Eric Bruneton
+ */
+public class ClassWriter implements ClassVisitor {
+
+ /**
+ * Flag to automatically compute the maximum stack size and the maximum
+ * number of local variables of methods. If this flag is set, then the
+ * arguments of the {@link MethodVisitor#visitMaxs visitMaxs} method of the
+ * {@link MethodVisitor} returned by the {@link #visitMethod visitMethod}
+ * method will be ignored, and computed automatically from the signature and
+ * the bytecode of each method.
+ *
+ * @see #ClassWriter(int)
+ */
+ public static final int COMPUTE_MAXS = 1;
+
+ /**
+ * Flag to automatically compute the stack map frames of methods from
+ * scratch. If this flag is set, then the calls to the
+ * {@link MethodVisitor#visitFrame} method are ignored, and the stack map
+ * frames are recomputed from the methods bytecode. The arguments of the
+ * {@link MethodVisitor#visitMaxs visitMaxs} method are also ignored and
+ * recomputed from the bytecode. In other words, computeFrames implies
+ * computeMaxs.
+ *
+ * @see #ClassWriter(int)
+ */
+ public static final int COMPUTE_FRAMES = 2;
+
+ /**
+ * Pseudo access flag to distinguish between the synthetic attribute and
+ * the synthetic access flag.
+ */
+ static final int ACC_SYNTHETIC_ATTRIBUTE = 0x40000;
+
+ /**
+ * The type of instructions without any argument.
+ */
+ static final int NOARG_INSN = 0;
+
+ /**
+ * The type of instructions with an signed byte argument.
+ */
+ static final int SBYTE_INSN = 1;
+
+ /**
+ * The type of instructions with an signed short argument.
+ */
+ static final int SHORT_INSN = 2;
+
+ /**
+ * The type of instructions with a local variable index argument.
+ */
+ static final int VAR_INSN = 3;
+
+ /**
+ * The type of instructions with an implicit local variable index argument.
+ */
+ static final int IMPLVAR_INSN = 4;
+
+ /**
+ * The type of instructions with a type descriptor argument.
+ */
+ static final int TYPE_INSN = 5;
+
+ /**
+ * The type of field and method invocations instructions.
+ */
+ static final int FIELDORMETH_INSN = 6;
+
+ /**
+ * The type of the INVOKEINTERFACE/INVOKEDYNAMIC instruction.
+ */
+ static final int ITFDYNMETH_INSN = 7;
+
+ /**
+ * The type of instructions with a 2 bytes bytecode offset label.
+ */
+ static final int LABEL_INSN = 8;
+
+ /**
+ * The type of instructions with a 4 bytes bytecode offset label.
+ */
+ static final int LABELW_INSN = 9;
+
+ /**
+ * The type of the LDC instruction.
+ */
+ static final int LDC_INSN = 10;
+
+ /**
+ * The type of the LDC_W and LDC2_W instructions.
+ */
+ static final int LDCW_INSN = 11;
+
+ /**
+ * The type of the IINC instruction.
+ */
+ static final int IINC_INSN = 12;
+
+ /**
+ * The type of the TABLESWITCH instruction.
+ */
+ static final int TABL_INSN = 13;
+
+ /**
+ * The type of the LOOKUPSWITCH instruction.
+ */
+ static final int LOOK_INSN = 14;
+
+ /**
+ * The type of the MULTIANEWARRAY instruction.
+ */
+ static final int MANA_INSN = 15;
+
+ /**
+ * The type of the WIDE instruction.
+ */
+ static final int WIDE_INSN = 16;
+
+ /**
+ * The instruction types of all JVM opcodes.
+ */
+ static final byte[] TYPE;
+
+ /**
+ * The type of CONSTANT_Class constant pool items.
+ */
+ static final int CLASS = 7;
+
+ /**
+ * The type of CONSTANT_Fieldref constant pool items.
+ */
+ static final int FIELD = 9;
+
+ /**
+ * The type of CONSTANT_Methodref constant pool items.
+ */
+ static final int METH = 10;
+
+ /**
+ * The type of CONSTANT_InterfaceMethodref constant pool items.
+ */
+ static final int IMETH = 11;
+
+ /**
+ * The type of CONSTANT_String constant pool items.
+ */
+ static final int STR = 8;
+
+ /**
+ * The type of CONSTANT_Integer constant pool items.
+ */
+ static final int INT = 3;
+
+ /**
+ * The type of CONSTANT_Float constant pool items.
+ */
+ static final int FLOAT = 4;
+
+ /**
+ * The type of CONSTANT_Long constant pool items.
+ */
+ static final int LONG = 5;
+
+ /**
+ * The type of CONSTANT_Double constant pool items.
+ */
+ static final int DOUBLE = 6;
+
+ /**
+ * The type of CONSTANT_NameAndType constant pool items.
+ */
+ static final int NAME_TYPE = 12;
+
+ /**
+ * The type of CONSTANT_Utf8 constant pool items.
+ */
+ static final int UTF8 = 1;
+
+ /**
+ * Normal type Item stored in the ClassWriter {@link ClassWriter#typeTable},
+ * instead of the constant pool, in order to avoid clashes with normal
+ * constant pool items in the ClassWriter constant pool's hash table.
+ */
+ static final int TYPE_NORMAL = 13;
+
+ /**
+ * Uninitialized type Item stored in the ClassWriter
+ * {@link ClassWriter#typeTable}, instead of the constant pool, in order to
+ * avoid clashes with normal constant pool items in the ClassWriter constant
+ * pool's hash table.
+ */
+ static final int TYPE_UNINIT = 14;
+
+ /**
+ * Merged type Item stored in the ClassWriter {@link ClassWriter#typeTable},
+ * instead of the constant pool, in order to avoid clashes with normal
+ * constant pool items in the ClassWriter constant pool's hash table.
+ */
+ static final int TYPE_MERGED = 15;
+
+ /**
+ * The class reader from which this class writer was constructed, if any.
+ */
+ ClassReader cr;
+
+ /**
+ * Minor and major version numbers of the class to be generated.
+ */
+ int version;
+
+ /**
+ * Index of the next item to be added in the constant pool.
+ */
+ int index;
+
+ /**
+ * The constant pool of this class.
+ */
+ final ByteVector pool;
+
+ /**
+ * The constant pool's hash table data.
+ */
+ Item[] items;
+
+ /**
+ * The threshold of the constant pool's hash table.
+ */
+ int threshold;
+
+ /**
+ * A reusable key used to look for items in the {@link #items} hash table.
+ */
+ final Item key;
+
+ /**
+ * A reusable key used to look for items in the {@link #items} hash table.
+ */
+ final Item key2;
+
+ /**
+ * A reusable key used to look for items in the {@link #items} hash table.
+ */
+ final Item key3;
+
+ /**
+ * A type table used to temporarily store internal names that will not
+ * necessarily be stored in the constant pool. This type table is used by
+ * the control flow and data flow analysis algorithm used to compute stack
+ * map frames from scratch. This array associates to each index <tt>i</tt>
+ * the Item whose index is <tt>i</tt>. All Item objects stored in this
+ * array are also stored in the {@link #items} hash table. These two arrays
+ * allow to retrieve an Item from its index or, conversely, to get the index
+ * of an Item from its value. Each Item stores an internal name in its
+ * {@link Item#strVal1} field.
+ */
+ Item[] typeTable;
+
+ /**
+ * Number of elements in the {@link #typeTable} array.
+ */
+ private short typeCount;
+
+ /**
+ * The access flags of this class.
+ */
+ private int access;
+
+ /**
+ * The constant pool item that contains the internal name of this class.
+ */
+ private int name;
+
+ /**
+ * The internal name of this class.
+ */
+ String thisName;
+
+ /**
+ * The constant pool item that contains the signature of this class.
+ */
+ private int signature;
+
+ /**
+ * The constant pool item that contains the internal name of the super class
+ * of this class.
+ */
+ private int superName;
+
+ /**
+ * Number of interfaces implemented or extended by this class or interface.
+ */
+ private int interfaceCount;
+
+ /**
+ * The interfaces implemented or extended by this class or interface. More
+ * precisely, this array contains the indexes of the constant pool items
+ * that contain the internal names of these interfaces.
+ */
+ private int[] interfaces;
+
+ /**
+ * The index of the constant pool item that contains the name of the source
+ * file from which this class was compiled.
+ */
+ private int sourceFile;
+
+ /**
+ * The SourceDebug attribute of this class.
+ */
+ private ByteVector sourceDebug;
+
+ /**
+ * The constant pool item that contains the name of the enclosing class of
+ * this class.
+ */
+ private int enclosingMethodOwner;
+
+ /**
+ * The constant pool item that contains the name and descriptor of the
+ * enclosing method of this class.
+ */
+ private int enclosingMethod;
+
+ /**
+ * The runtime visible annotations of this class.
+ */
+ private AnnotationWriter anns;
+
+ /**
+ * The runtime invisible annotations of this class.
+ */
+ private AnnotationWriter ianns;
+
+ /**
+ * The non standard attributes of this class.
+ */
+ private Attribute attrs;
+
+ /**
+ * The number of entries in the InnerClasses attribute.
+ */
+ private int innerClassesCount;
+
+ /**
+ * The InnerClasses attribute.
+ */
+ private ByteVector innerClasses;
+
+ /**
+ * The fields of this class. These fields are stored in a linked list of
+ * {@link FieldWriter} objects, linked to each other by their
+ * {@link FieldWriter#next} field. This field stores the first element of
+ * this list.
+ */
+ FieldWriter firstField;
+
+ /**
+ * The fields of this class. These fields are stored in a linked list of
+ * {@link FieldWriter} objects, linked to each other by their
+ * {@link FieldWriter#next} field. This field stores the last element of
+ * this list.
+ */
+ FieldWriter lastField;
+
+ /**
+ * The methods of this class. These methods are stored in a linked list of
+ * {@link MethodWriter} objects, linked to each other by their
+ * {@link MethodWriter#next} field. This field stores the first element of
+ * this list.
+ */
+ MethodWriter firstMethod;
+
+ /**
+ * The methods of this class. These methods are stored in a linked list of
+ * {@link MethodWriter} objects, linked to each other by their
+ * {@link MethodWriter#next} field. This field stores the last element of
+ * this list.
+ */
+ MethodWriter lastMethod;
+
+ /**
+ * <tt>true</tt> if the maximum stack size and number of local variables
+ * must be automatically computed.
+ */
+ private final boolean computeMaxs;
+
+ /**
+ * <tt>true</tt> if the stack map frames must be recomputed from scratch.
+ */
+ private final boolean computeFrames;
+
+ /**
+ * <tt>true</tt> if the stack map tables of this class are invalid. The
+ * {@link MethodWriter#resizeInstructions} method cannot transform existing
+ * stack map tables, and so produces potentially invalid classes when it is
+ * executed. In this case the class is reread and rewritten with the
+ * {@link #COMPUTE_FRAMES} option (the resizeInstructions method can resize
+ * stack map tables when this option is used).
+ */
+ boolean invalidFrames;
+
+ // ------------------------------------------------------------------------
+ // Static initializer
+ // ------------------------------------------------------------------------
+
+ /**
+ * Computes the instruction types of JVM opcodes.
+ */
+ static {
+ int i;
+ byte[] b = new byte[220];
+ String s = "AAAAAAAAAAAAAAAABCKLLDDDDDEEEEEEEEEEEEEEEEEEEEAAAAAAAADD"
+ + "DDDEEEEEEEEEEEEEEEEEEEEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
+ + "AAAAAAAAAAAAAAAAAMAAAAAAAAAAAAAAAAAAAAIIIIIIIIIIIIIIIIDNOAA"
+ + "AAAAGGGGGGGHHFBFAAFFAAQPIIJJIIIIIIIIIIIIIIIIII";
+ for (i = 0; i < b.length; ++i) {
+ b[i] = (byte) (s.charAt(i) - 'A');
+ }
+ TYPE = b;
+
+ // code to generate the above string
+ //
+ // // SBYTE_INSN instructions
+ // b[Constants.NEWARRAY] = SBYTE_INSN;
+ // b[Constants.BIPUSH] = SBYTE_INSN;
+ //
+ // // SHORT_INSN instructions
+ // b[Constants.SIPUSH] = SHORT_INSN;
+ //
+ // // (IMPL)VAR_INSN instructions
+ // b[Constants.RET] = VAR_INSN;
+ // for (i = Constants.ILOAD; i <= Constants.ALOAD; ++i) {
+ // b[i] = VAR_INSN;
+ // }
+ // for (i = Constants.ISTORE; i <= Constants.ASTORE; ++i) {
+ // b[i] = VAR_INSN;
+ // }
+ // for (i = 26; i <= 45; ++i) { // ILOAD_0 to ALOAD_3
+ // b[i] = IMPLVAR_INSN;
+ // }
+ // for (i = 59; i <= 78; ++i) { // ISTORE_0 to ASTORE_3
+ // b[i] = IMPLVAR_INSN;
+ // }
+ //
+ // // TYPE_INSN instructions
+ // b[Constants.NEW] = TYPE_INSN;
+ // b[Constants.ANEWARRAY] = TYPE_INSN;
+ // b[Constants.CHECKCAST] = TYPE_INSN;
+ // b[Constants.INSTANCEOF] = TYPE_INSN;
+ //
+ // // (Set)FIELDORMETH_INSN instructions
+ // for (i = Constants.GETSTATIC; i <= Constants.INVOKESTATIC; ++i) {
+ // b[i] = FIELDORMETH_INSN;
+ // }
+ // b[Constants.INVOKEINTERFACE] = ITFDYNMETH_INSN;
+ // b[Constants.INVOKEDYNAMIC] = ITFDYNMETH_INSN;
+ //
+ // // LABEL(W)_INSN instructions
+ // for (i = Constants.IFEQ; i <= Constants.JSR; ++i) {
+ // b[i] = LABEL_INSN;
+ // }
+ // b[Constants.IFNULL] = LABEL_INSN;
+ // b[Constants.IFNONNULL] = LABEL_INSN;
+ // b[200] = LABELW_INSN; // GOTO_W
+ // b[201] = LABELW_INSN; // JSR_W
+ // // temporary opcodes used internally by ASM - see Label and
+ // MethodWriter
+ // for (i = 202; i < 220; ++i) {
+ // b[i] = LABEL_INSN;
+ // }
+ //
+ // // LDC(_W) instructions
+ // b[Constants.LDC] = LDC_INSN;
+ // b[19] = LDCW_INSN; // LDC_W
+ // b[20] = LDCW_INSN; // LDC2_W
+ //
+ // // special instructions
+ // b[Constants.IINC] = IINC_INSN;
+ // b[Constants.TABLESWITCH] = TABL_INSN;
+ // b[Constants.LOOKUPSWITCH] = LOOK_INSN;
+ // b[Constants.MULTIANEWARRAY] = MANA_INSN;
+ // b[196] = WIDE_INSN; // WIDE
+ //
+ // for (i = 0; i < b.length; ++i) {
+ // System.err.print((char)('A' + b[i]));
+ // }
+ // System.err.println();
+ }
+
+ // ------------------------------------------------------------------------
+ // Constructor
+ // ------------------------------------------------------------------------
+
+ /**
+ * Constructs a new {@link ClassWriter} object.
+ *
+ * @param flags option flags that can be used to modify the default behavior
+ * of this class. See {@link #COMPUTE_MAXS}, {@link #COMPUTE_FRAMES}.
+ */
+ public ClassWriter(final int flags) {
+ index = 1;
+ pool = new ByteVector();
+ items = new Item[256];
+ threshold = (int) (0.75d * items.length);
+ key = new Item();
+ key2 = new Item();
+ key3 = new Item();
+ this.computeMaxs = (flags & COMPUTE_MAXS) != 0;
+ this.computeFrames = (flags & COMPUTE_FRAMES) != 0;
+ }
+
+ /**
+ * Constructs a new {@link ClassWriter} object and enables optimizations for
+ * "mostly add" bytecode transformations. These optimizations are the
+ * following:
+ *
+ * <ul> <li>The constant pool from the original class is copied as is in
+ * the new class, which saves time. New constant pool entries will be added
+ * at the end if necessary, but unused constant pool entries <i>won't be
+ * removed</i>.</li> <li>Methods that are not transformed are copied as
+ * is in the new class, directly from the original class bytecode (i.e.
+ * without emitting visit events for all the method instructions), which
+ * saves a <i>lot</i> of time. Untransformed methods are detected by the
+ * fact that the {@link ClassReader} receives {@link MethodVisitor} objects
+ * that come from a {@link ClassWriter} (and not from a custom
+ * {@link ClassAdapter} or any other {@link ClassVisitor} instance).</li>
+ * </ul>
+ *
+ * @param classReader the {@link ClassReader} used to read the original
+ * class. It will be used to copy the entire constant pool from the
+ * original class and also to copy other fragments of original
+ * bytecode where applicable.
+ * @param flags option flags that can be used to modify the default behavior
+ * of this class. <i>These option flags do not affect methods that
+ * are copied as is in the new class. This means that the maximum
+ * stack size nor the stack frames will be computed for these
+ * methods</i>. See {@link #COMPUTE_MAXS}, {@link #COMPUTE_FRAMES}.
+ */
+ public ClassWriter(final ClassReader classReader, final int flags) {
+ this(flags);
+ classReader.copyPool(this);
+ this.cr = classReader;
+ }
+
+ // ------------------------------------------------------------------------
+ // Implementation of the ClassVisitor interface
+ // ------------------------------------------------------------------------
+
+ public void visit(
+ final int version,
+ final int access,
+ final String name,
+ final String signature,
+ final String superName,
+ final String[] interfaces)
+ {
+ this.version = version;
+ this.access = access;
+ this.name = newClass(name);
+ thisName = name;
+ if (ClassReader.SIGNATURES && signature != null) {
+ this.signature = newUTF8(signature);
+ }
+ this.superName = superName == null ? 0 : newClass(superName);
+ if (interfaces != null && interfaces.length > 0) {
+ interfaceCount = interfaces.length;
+ this.interfaces = new int[interfaceCount];
+ for (int i = 0; i < interfaceCount; ++i) {
+ this.interfaces[i] = newClass(interfaces[i]);
+ }
+ }
+ }
+
+ public void visitSource(final String file, final String debug) {
+ if (file != null) {
+ sourceFile = newUTF8(file);
+ }
+ if (debug != null) {
+ sourceDebug = new ByteVector().putUTF8(debug);
+ }
+ }
+
+ public void visitOuterClass(
+ final String owner,
+ final String name,
+ final String desc)
+ {
+ enclosingMethodOwner = newClass(owner);
+ if (name != null && desc != null) {
+ enclosingMethod = newNameType(name, desc);
+ }
+ }
+
+ public AnnotationVisitor visitAnnotation(
+ final String desc,
+ final boolean visible)
+ {
+ if (!ClassReader.ANNOTATIONS) {
+ return null;
+ }
+ ByteVector bv = new ByteVector();
+ // write type, and reserve space for values count
+ bv.putShort(newUTF8(desc)).putShort(0);
+ AnnotationWriter aw = new AnnotationWriter(this, true, bv, bv, 2);
+ if (visible) {
+ aw.next = anns;
+ anns = aw;
+ } else {
+ aw.next = ianns;
+ ianns = aw;
+ }
+ return aw;
+ }
+
+ public void visitAttribute(final Attribute attr) {
+ attr.next = attrs;
+ attrs = attr;
+ }
+
+ public void visitInnerClass(
+ final String name,
+ final String outerName,
+ final String innerName,
+ final int access)
+ {
+ if (innerClasses == null) {
+ innerClasses = new ByteVector();
+ }
+ ++innerClassesCount;
+ innerClasses.putShort(name == null ? 0 : newClass(name));
+ innerClasses.putShort(outerName == null ? 0 : newClass(outerName));
+ innerClasses.putShort(innerName == null ? 0 : newUTF8(innerName));
+ innerClasses.putShort(access);
+ }
+
+ public FieldVisitor visitField(
+ final int access,
+ final String name,
+ final String desc,
+ final String signature,
+ final Object value)
+ {
+ return new FieldWriter(this, access, name, desc, signature, value);
+ }
+
+ public MethodVisitor visitMethod(
+ final int access,
+ final String name,
+ final String desc,
+ final String signature,
+ final String[] exceptions)
+ {
+ return new MethodWriter(this,
+ access,
+ name,
+ desc,
+ signature,
+ exceptions,
+ computeMaxs,
+ computeFrames);
+ }
+
+ public void visitEnd() {
+ }
+
+ // ------------------------------------------------------------------------
+ // Other public methods
+ // ------------------------------------------------------------------------
+
+ /**
+ * Returns the bytecode of the class that was build with this class writer.
+ *
+ * @return the bytecode of the class that was build with this class writer.
+ */
+ public byte[] toByteArray() {
+ // computes the real size of the bytecode of this class
+ int size = 24 + 2 * interfaceCount;
+ int nbFields = 0;
+ FieldWriter fb = firstField;
+ while (fb != null) {
+ ++nbFields;
+ size += fb.getSize();
+ fb = fb.next;
+ }
+ int nbMethods = 0;
+ MethodWriter mb = firstMethod;
+ while (mb != null) {
+ ++nbMethods;
+ size += mb.getSize();
+ mb = mb.next;
+ }
+ int attributeCount = 0;
+ if (ClassReader.SIGNATURES && signature != 0) {
+ ++attributeCount;
+ size += 8;
+ newUTF8("Signature");
+ }
+ if (sourceFile != 0) {
+ ++attributeCount;
+ size += 8;
+ newUTF8("SourceFile");
+ }
+ if (sourceDebug != null) {
+ ++attributeCount;
+ size += sourceDebug.length + 4;
+ newUTF8("SourceDebugExtension");
+ }
+ if (enclosingMethodOwner != 0) {
+ ++attributeCount;
+ size += 10;
+ newUTF8("EnclosingMethod");
+ }
+ if ((access & Opcodes.ACC_DEPRECATED) != 0) {
+ ++attributeCount;
+ size += 6;
+ newUTF8("Deprecated");
+ }
+ if ((access & Opcodes.ACC_SYNTHETIC) != 0
+ && ((version & 0xFFFF) < Opcodes.V1_5 || (access & ACC_SYNTHETIC_ATTRIBUTE) != 0))
+ {
+ ++attributeCount;
+ size += 6;
+ newUTF8("Synthetic");
+ }
+ if (innerClasses != null) {
+ ++attributeCount;
+ size += 8 + innerClasses.length;
+ newUTF8("InnerClasses");
+ }
+ if (ClassReader.ANNOTATIONS && anns != null) {
+ ++attributeCount;
+ size += 8 + anns.getSize();
+ newUTF8("RuntimeVisibleAnnotations");
+ }
+ if (ClassReader.ANNOTATIONS && ianns != null) {
+ ++attributeCount;
+ size += 8 + ianns.getSize();
+ newUTF8("RuntimeInvisibleAnnotations");
+ }
+ if (attrs != null) {
+ attributeCount += attrs.getCount();
+ size += attrs.getSize(this, null, 0, -1, -1);
+ }
+ size += pool.length;
+ // allocates a byte vector of this size, in order to avoid unnecessary
+ // arraycopy operations in the ByteVector.enlarge() method
+ ByteVector out = new ByteVector(size);
+ out.putInt(0xCAFEBABE).putInt(version);
+ out.putShort(index).putByteArray(pool.data, 0, pool.length);
+ int mask = Opcodes.ACC_DEPRECATED
+ | ClassWriter.ACC_SYNTHETIC_ATTRIBUTE
+ | ((access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) / (ClassWriter.ACC_SYNTHETIC_ATTRIBUTE / Opcodes.ACC_SYNTHETIC));
+ out.putShort(access & ~mask).putShort(name).putShort(superName);
+ out.putShort(interfaceCount);
+ for (int i = 0; i < interfaceCount; ++i) {
+ out.putShort(interfaces[i]);
+ }
+ out.putShort(nbFields);
+ fb = firstField;
+ while (fb != null) {
+ fb.put(out);
+ fb = fb.next;
+ }
+ out.putShort(nbMethods);
+ mb = firstMethod;
+ while (mb != null) {
+ mb.put(out);
+ mb = mb.next;
+ }
+ out.putShort(attributeCount);
+ if (ClassReader.SIGNATURES && signature != 0) {
+ out.putShort(newUTF8("Signature")).putInt(2).putShort(signature);
+ }
+ if (sourceFile != 0) {
+ out.putShort(newUTF8("SourceFile")).putInt(2).putShort(sourceFile);
+ }
+ if (sourceDebug != null) {
+ int len = sourceDebug.length - 2;
+ out.putShort(newUTF8("SourceDebugExtension")).putInt(len);
+ out.putByteArray(sourceDebug.data, 2, len);
+ }
+ if (enclosingMethodOwner != 0) {
+ out.putShort(newUTF8("EnclosingMethod")).putInt(4);
+ out.putShort(enclosingMethodOwner).putShort(enclosingMethod);
+ }
+ if ((access & Opcodes.ACC_DEPRECATED) != 0) {
+ out.putShort(newUTF8("Deprecated")).putInt(0);
+ }
+ if ((access & Opcodes.ACC_SYNTHETIC) != 0
+ && ((version & 0xFFFF) < Opcodes.V1_5 || (access & ACC_SYNTHETIC_ATTRIBUTE) != 0))
+ {
+ out.putShort(newUTF8("Synthetic")).putInt(0);
+ }
+ if (innerClasses != null) {
+ out.putShort(newUTF8("InnerClasses"));
+ out.putInt(innerClasses.length + 2).putShort(innerClassesCount);
+ out.putByteArray(innerClasses.data, 0, innerClasses.length);
+ }
+ if (ClassReader.ANNOTATIONS && anns != null) {
+ out.putShort(newUTF8("RuntimeVisibleAnnotations"));
+ anns.put(out);
+ }
+ if (ClassReader.ANNOTATIONS && ianns != null) {
+ out.putShort(newUTF8("RuntimeInvisibleAnnotations"));
+ ianns.put(out);
+ }
+ if (attrs != null) {
+ attrs.put(this, null, 0, -1, -1, out);
+ }
+ if (invalidFrames) {
+ ClassWriter cw = new ClassWriter(COMPUTE_FRAMES);
+ new ClassReader(out.data).accept(cw, ClassReader.SKIP_FRAMES);
+ return cw.toByteArray();
+ }
+ return out.data;
+ }
+
+ // ------------------------------------------------------------------------
+ // Utility methods: constant pool management
+ // ------------------------------------------------------------------------
+
+ /**
+ * Adds a number or string constant to the constant pool of the class being
+ * build. Does nothing if the constant pool already contains a similar item.
+ *
+ * @param cst the value of the constant to be added to the constant pool.
+ * This parameter must be an {@link Integer}, a {@link Float}, a
+ * {@link Long}, a {@link Double}, a {@link String} or a
+ * {@link Type}.
+ * @return a new or already existing constant item with the given value.
+ */
+ Item newConstItem(final Object cst) {
+ if (cst instanceof Integer) {
+ int val = ((Integer) cst).intValue();
+ return newInteger(val);
+ } else if (cst instanceof Byte) {
+ int val = ((Byte) cst).intValue();
+ return newInteger(val);
+ } else if (cst instanceof Character) {
+ int val = ((Character) cst).charValue();
+ return newInteger(val);
+ } else if (cst instanceof Short) {
+ int val = ((Short) cst).intValue();
+ return newInteger(val);
+ } else if (cst instanceof Boolean) {
+ int val = ((Boolean) cst).booleanValue() ? 1 : 0;
+ return newInteger(val);
+ } else if (cst instanceof Float) {
+ float val = ((Float) cst).floatValue();
+ return newFloat(val);
+ } else if (cst instanceof Long) {
+ long val = ((Long) cst).longValue();
+ return newLong(val);
+ } else if (cst instanceof Double) {
+ double val = ((Double) cst).doubleValue();
+ return newDouble(val);
+ } else if (cst instanceof String) {
+ return newString((String) cst);
+ } else if (cst instanceof Type) {
+ Type t = (Type) cst;
+ return newClassItem(t.getSort() == Type.OBJECT
+ ? t.getInternalName()
+ : t.getDescriptor());
+ } else {
+ throw new IllegalArgumentException("value " + cst);
+ }
+ }
+
+ /**
+ * Adds a number or string constant to the constant pool of the class being
+ * build. Does nothing if the constant pool already contains a similar item.
+ * <i>This method is intended for {@link Attribute} sub classes, and is
+ * normally not needed by class generators or adapters.</i>
+ *
+ * @param cst the value of the constant to be added to the constant pool.
+ * This parameter must be an {@link Integer}, a {@link Float}, a
+ * {@link Long}, a {@link Double} or a {@link String}.
+ * @return the index of a new or already existing constant item with the
+ * given value.
+ */
+ public int newConst(final Object cst) {
+ return newConstItem(cst).index;
+ }
+
+ /**
+ * Adds an UTF8 string to the constant pool of the class being build. Does
+ * nothing if the constant pool already contains a similar item. <i>This
+ * method is intended for {@link Attribute} sub classes, and is normally not
+ * needed by class generators or adapters.</i>
+ *
+ * @param value the String value.
+ * @return the index of a new or already existing UTF8 item.
+ */
+ public int newUTF8(final String value) {
+ key.set(UTF8, value, null, null);
+ Item result = get(key);
+ if (result == null) {
+ pool.putByte(UTF8).putUTF8(value);
+ result = new Item(index++, key);
+ put(result);
+ }
+ return result.index;
+ }
+
+ /**
+ * Adds a class reference to the constant pool of the class being build.
+ * Does nothing if the constant pool already contains a similar item.
+ * <i>This method is intended for {@link Attribute} sub classes, and is
+ * normally not needed by class generators or adapters.</i>
+ *
+ * @param value the internal name of the class.
+ * @return a new or already existing class reference item.
+ */
+ Item newClassItem(final String value) {
+ key2.set(CLASS, value, null, null);
+ Item result = get(key2);
+ if (result == null) {
+ pool.put12(CLASS, newUTF8(value));
+ result = new Item(index++, key2);
+ put(result);
+ }
+ return result;
+ }
+
+ /**
+ * Adds a class reference to the constant pool of the class being build.
+ * Does nothing if the constant pool already contains a similar item.
+ * <i>This method is intended for {@link Attribute} sub classes, and is
+ * normally not needed by class generators or adapters.</i>
+ *
+ * @param value the internal name of the class.
+ * @return the index of a new or already existing class reference item.
+ */
+ public int newClass(final String value) {
+ return newClassItem(value).index;
+ }
+
+ /**
+ * Adds a field reference to the constant pool of the class being build.
+ * Does nothing if the constant pool already contains a similar item.
+ *
+ * @param owner the internal name of the field's owner class.
+ * @param name the field's name.
+ * @param desc the field's descriptor.
+ * @return a new or already existing field reference item.
+ */
+ Item newFieldItem(final String owner, final String name, final String desc)
+ {
+ key3.set(FIELD, owner, name, desc);
+ Item result = get(key3);
+ if (result == null) {
+ put122(FIELD, newClass(owner), newNameType(name, desc));
+ result = new Item(index++, key3);
+ put(result);
+ }
+ return result;
+ }
+
+ /**
+ * Adds a field reference to the constant pool of the class being build.
+ * Does nothing if the constant pool already contains a similar item.
+ * <i>This method is intended for {@link Attribute} sub classes, and is
+ * normally not needed by class generators or adapters.</i>
+ *
+ * @param owner the internal name of the field's owner class.
+ * @param name the field's name.
+ * @param desc the field's descriptor.
+ * @return the index of a new or already existing field reference item.
+ */
+ public int newField(final String owner, final String name, final String desc)
+ {
+ return newFieldItem(owner, name, desc).index;
+ }
+
+ /**
+ * Adds a method reference to the constant pool of the class being build.
+ * Does nothing if the constant pool already contains a similar item.
+ *
+ * @param owner the internal name of the method's owner class.
+ * @param name the method's name.
+ * @param desc the method's descriptor.
+ * @param itf <tt>true</tt> if <tt>owner</tt> is an interface.
+ * @return a new or already existing method reference item.
+ */
+ Item newMethodItem(
+ final String owner,
+ final String name,
+ final String desc,
+ final boolean itf)
+ {
+ int type = itf ? IMETH : METH;
+ key3.set(type, owner, name, desc);
+ Item result = get(key3);
+ if (result == null) {
+ put122(type, newClass(owner), newNameType(name, desc));
+ result = new Item(index++, key3);
+ put(result);
+ }
+ return result;
+ }
+
+ /**
+ * Adds a method reference to the constant pool of the class being build.
+ * Does nothing if the constant pool already contains a similar item.
+ * <i>This method is intended for {@link Attribute} sub classes, and is
+ * normally not needed by class generators or adapters.</i>
+ *
+ * @param owner the internal name of the method's owner class.
+ * @param name the method's name.
+ * @param desc the method's descriptor.
+ * @param itf <tt>true</tt> if <tt>owner</tt> is an interface.
+ * @return the index of a new or already existing method reference item.
+ */
+ public int newMethod(
+ final String owner,
+ final String name,
+ final String desc,
+ final boolean itf)
+ {
+ return newMethodItem(owner, name, desc, itf).index;
+ }
+
+ /**
+ * Adds an integer to the constant pool of the class being build. Does
+ * nothing if the constant pool already contains a similar item.
+ *
+ * @param value the int value.
+ * @return a new or already existing int item.
+ */
+ Item newInteger(final int value) {
+ key.set(value);
+ Item result = get(key);
+ if (result == null) {
+ pool.putByte(INT).putInt(value);
+ result = new Item(index++, key);
+ put(result);
+ }
+ return result;
+ }
+
+ /**
+ * Adds a float to the constant pool of the class being build. Does nothing
+ * if the constant pool already contains a similar item.
+ *
+ * @param value the float value.
+ * @return a new or already existing float item.
+ */
+ Item newFloat(final float value) {
+ key.set(value);
+ Item result = get(key);
+ if (result == null) {
+ pool.putByte(FLOAT).putInt(key.intVal);
+ result = new Item(index++, key);
+ put(result);
+ }
+ return result;
+ }
+
+ /**
+ * Adds a long to the constant pool of the class being build. Does nothing
+ * if the constant pool already contains a similar item.
+ *
+ * @param value the long value.
+ * @return a new or already existing long item.
+ */
+ Item newLong(final long value) {
+ key.set(value);
+ Item result = get(key);
+ if (result == null) {
+ pool.putByte(LONG).putLong(value);
+ result = new Item(index, key);
+ put(result);
+ index += 2;
+ }
+ return result;
+ }
+
+ /**
+ * Adds a double to the constant pool of the class being build. Does nothing
+ * if the constant pool already contains a similar item.
+ *
+ * @param value the double value.
+ * @return a new or already existing double item.
+ */
+ Item newDouble(final double value) {
+ key.set(value);
+ Item result = get(key);
+ if (result == null) {
+ pool.putByte(DOUBLE).putLong(key.longVal);
+ result = new Item(index, key);
+ put(result);
+ index += 2;
+ }
+ return result;
+ }
+
+ /**
+ * Adds a string to the constant pool of the class being build. Does nothing
+ * if the constant pool already contains a similar item.
+ *
+ * @param value the String value.
+ * @return a new or already existing string item.
+ */
+ private Item newString(final String value) {
+ key2.set(STR, value, null, null);
+ Item result = get(key2);
+ if (result == null) {
+ pool.put12(STR, newUTF8(value));
+ result = new Item(index++, key2);
+ put(result);
+ }
+ return result;
+ }
+
+ /**
+ * Adds a name and type to the constant pool of the class being build. Does
+ * nothing if the constant pool already contains a similar item. <i>This
+ * method is intended for {@link Attribute} sub classes, and is normally not
+ * needed by class generators or adapters.</i>
+ *
+ * @param name a name.
+ * @param desc a type descriptor.
+ * @return the index of a new or already existing name and type item.
+ */
+ public int newNameType(final String name, final String desc) {
+ return newNameTypeItem(name, desc).index;
+ }
+
+ /**
+ * Adds a name and type to the constant pool of the class being build. Does
+ * nothing if the constant pool already contains a similar item.
+ *
+ * @param name a name.
+ * @param desc a type descriptor.
+ * @return a new or already existing name and type item.
+ */
+ Item newNameTypeItem(final String name, final String desc) {
+ key2.set(NAME_TYPE, name, desc, null);
+ Item result = get(key2);
+ if (result == null) {
+ put122(NAME_TYPE, newUTF8(name), newUTF8(desc));
+ result = new Item(index++, key2);
+ put(result);
+ }
+ return result;
+ }
+
+ /**
+ * Adds the given internal name to {@link #typeTable} and returns its index.
+ * Does nothing if the type table already contains this internal name.
+ *
+ * @param type the internal name to be added to the type table.
+ * @return the index of this internal name in the type table.
+ */
+ int addType(final String type) {
+ key.set(TYPE_NORMAL, type, null, null);
+ Item result = get(key);
+ if (result == null) {
+ result = addType(key);
+ }
+ return result.index;
+ }
+
+ /**
+ * Adds the given "uninitialized" type to {@link #typeTable} and returns its
+ * index. This method is used for UNINITIALIZED types, made of an internal
+ * name and a bytecode offset.
+ *
+ * @param type the internal name to be added to the type table.
+ * @param offset the bytecode offset of the NEW instruction that created
+ * this UNINITIALIZED type value.
+ * @return the index of this internal name in the type table.
+ */
+ int addUninitializedType(final String type, final int offset) {
+ key.type = TYPE_UNINIT;
+ key.intVal = offset;
+ key.strVal1 = type;
+ key.hashCode = 0x7FFFFFFF & (TYPE_UNINIT + type.hashCode() + offset);
+ Item result = get(key);
+ if (result == null) {
+ result = addType(key);
+ }
+ return result.index;
+ }
+
+ /**
+ * Adds the given Item to {@link #typeTable}.
+ *
+ * @param item the value to be added to the type table.
+ * @return the added Item, which a new Item instance with the same value as
+ * the given Item.
+ */
+ private Item addType(final Item item) {
+ ++typeCount;
+ Item result = new Item(typeCount, key);
+ put(result);
+ if (typeTable == null) {
+ typeTable = new Item[16];
+ }
+ if (typeCount == typeTable.length) {
+ Item[] newTable = new Item[2 * typeTable.length];
+ System.arraycopy(typeTable, 0, newTable, 0, typeTable.length);
+ typeTable = newTable;
+ }
+ typeTable[typeCount] = result;
+ return result;
+ }
+
+ /**
+ * Returns the index of the common super type of the two given types. This
+ * method calls {@link #getCommonSuperClass} and caches the result in the
+ * {@link #items} hash table to speedup future calls with the same
+ * parameters.
+ *
+ * @param type1 index of an internal name in {@link #typeTable}.
+ * @param type2 index of an internal name in {@link #typeTable}.
+ * @return the index of the common super type of the two given types.
+ */
+ int getMergedType(final int type1, final int type2) {
+ key2.type = TYPE_MERGED;
+ key2.longVal = type1 | (((long) type2) << 32);
+ key2.hashCode = 0x7FFFFFFF & (TYPE_MERGED + type1 + type2);
+ Item result = get(key2);
+ if (result == null) {
+ String t = typeTable[type1].strVal1;
+ String u = typeTable[type2].strVal1;
+ key2.intVal = addType(getCommonSuperClass(t, u));
+ result = new Item((short) 0, key2);
+ put(result);
+ }
+ return result.intVal;
+ }
+
+ /**
+ * Returns the common super type of the two given types. The default
+ * implementation of this method <i>loads<i> the two given classes and uses
+ * the java.lang.Class methods to find the common super class. It can be
+ * overridden to compute this common super type in other ways, in particular
+ * without actually loading any class, or to take into account the class
+ * that is currently being generated by this ClassWriter, which can of
+ * course not be loaded since it is under construction.
+ *
+ * @param type1 the internal name of a class.
+ * @param type2 the internal name of another class.
+ * @return the internal name of the common super class of the two given
+ * classes.
+ */
+ protected String getCommonSuperClass(final String type1, final String type2)
+ {
+ Class c, d;
+ try {
+ c = Class.forName(type1.replace('/', '.'));
+ d = Class.forName(type2.replace('/', '.'));
+ } catch (Exception e) {
+ throw new RuntimeException(e.toString());
+ }
+ if (c.isAssignableFrom(d)) {
+ return type1;
+ }
+ if (d.isAssignableFrom(c)) {
+ return type2;
+ }
+ if (c.isInterface() || d.isInterface()) {
+ return "java/lang/Object";
+ } else {
+ do {
+ c = c.getSuperclass();
+ } while (!c.isAssignableFrom(d));
+ return c.getName().replace('.', '/');
+ }
+ }
+
+ /**
+ * Returns the constant pool's hash table item which is equal to the given
+ * item.
+ *
+ * @param key a constant pool item.
+ * @return the constant pool's hash table item which is equal to the given
+ * item, or <tt>null</tt> if there is no such item.
+ */
+ private Item get(final Item key) {
+ Item i = items[key.hashCode % items.length];
+ while (i != null && (i.type != key.type || !key.isEqualTo(i))) {
+ i = i.next;
+ }
+ return i;
+ }
+
+ /**
+ * Puts the given item in the constant pool's hash table. The hash table
+ * <i>must</i> not already contains this item.
+ *
+ * @param i the item to be added to the constant pool's hash table.
+ */
+ private void put(final Item i) {
+ if (index > threshold) {
+ int ll = items.length;
+ int nl = ll * 2 + 1;
+ Item[] newItems = new Item[nl];
+ for (int l = ll - 1; l >= 0; --l) {
+ Item j = items[l];
+ while (j != null) {
+ int index = j.hashCode % newItems.length;
+ Item k = j.next;
+ j.next = newItems[index];
+ newItems[index] = j;
+ j = k;
+ }
+ }
+ items = newItems;
+ threshold = (int) (nl * 0.75);
+ }
+ int index = i.hashCode % items.length;
+ i.next = items[index];
+ items[index] = i;
+ }
+
+ /**
+ * Puts one byte and two shorts into the constant pool.
+ *
+ * @param b a byte.
+ * @param s1 a short.
+ * @param s2 another short.
+ */
+ private void put122(final int b, final int s1, final int s2) {
+ pool.put12(b, s1).putShort(s2);
+ }
+}
Added: tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Edge.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Edge.java?rev=1089584&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Edge.java (added)
+++ tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/Edge.java Wed Apr 6 19:11:34 2011
@@ -0,0 +1,75 @@
+/***
+ * 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;
+
+/**
+ * An edge in the control flow graph of a method body. See {@link Label Label}.
+ *
+ * @author Eric Bruneton
+ */
+class Edge {
+
+ /**
+ * Denotes a normal control flow graph edge.
+ */
+ static final int NORMAL = 0;
+
+ /**
+ * Denotes a control flow graph edge corresponding to an exception handler.
+ * More precisely any {@link Edge} whose {@link #info} is strictly positive
+ * corresponds to an exception handler. The actual value of {@link #info} is
+ * the index, in the {@link ClassWriter} type table, of the exception that
+ * is catched.
+ */
+ static final int EXCEPTION = 0x7FFFFFFF;
+
+ /**
+ * Information about this control flow graph edge. If
+ * {@link ClassWriter#COMPUTE_MAXS} is used this field is the (relative)
+ * stack size in the basic block from which this edge originates. This size
+ * is equal to the stack size at the "jump" instruction to which this edge
+ * corresponds, relatively to the stack size at the beginning of the
+ * originating basic block. If {@link ClassWriter#COMPUTE_FRAMES} is used,
+ * this field is the kind of this control flow graph edge (i.e. NORMAL or
+ * EXCEPTION).
+ */
+ int info;
+
+ /**
+ * The successor block of the basic block from which this edge originates.
+ */
+ Label successor;
+
+ /**
+ * The next edge in the list of successors of the originating basic block.
+ * See {@link Label#successors successors}.
+ */
+ Edge next;
+}
Added: tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/FieldVisitor.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/FieldVisitor.java?rev=1089584&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/FieldVisitor.java (added)
+++ tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/FieldVisitor.java Wed Apr 6 19:11:34 2011
@@ -0,0 +1,64 @@
+/***
+ * 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;
+
+/**
+ * A visitor to visit a Java field. The methods of this interface must be called
+ * in the following order: ( <tt>visitAnnotation</tt> |
+ * <tt>visitAttribute</tt> )* <tt>visitEnd</tt>.
+ *
+ * @author Eric Bruneton
+ */
+public interface FieldVisitor {
+
+ /**
+ * Visits an annotation of the field.
+ *
+ * @param desc the class descriptor of the annotation class.
+ * @param visible <tt>true</tt> if the annotation is visible at runtime.
+ * @return a visitor to visit the annotation values, or <tt>null</tt> if
+ * this visitor is not interested in visiting this annotation.
+ */
+ AnnotationVisitor visitAnnotation(String desc, boolean visible);
+
+ /**
+ * Visits a non standard attribute of the field.
+ *
+ * @param attr an attribute.
+ */
+ void visitAttribute(Attribute attr);
+
+ /**
+ * Visits the end of the field. This method, which is the last one to be
+ * called, is used to inform the visitor that all the annotations and
+ * attributes of the field have been visited.
+ */
+ void visitEnd();
+}
Added: tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/FieldWriter.java
URL: http://svn.apache.org/viewvc/tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/FieldWriter.java?rev=1089584&view=auto
==============================================================================
--- tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/FieldWriter.java (added)
+++ tapestry/tapestry5/trunk/plastic/src/external/java/org/objectweb/asm/FieldWriter.java Wed Apr 6 19:11:34 2011
@@ -0,0 +1,272 @@
+/***
+ * 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;
+
+/**
+ * An {@link FieldVisitor} that generates Java fields in bytecode form.
+ *
+ * @author Eric Bruneton
+ */
+final class FieldWriter implements FieldVisitor {
+
+ /**
+ * Next field writer (see {@link ClassWriter#firstField firstField}).
+ */
+ FieldWriter next;
+
+ /**
+ * The class writer to which this field must be added.
+ */
+ private final ClassWriter cw;
+
+ /**
+ * Access flags of this field.
+ */
+ private final int access;
+
+ /**
+ * The index of the constant pool item that contains the name of this
+ * method.
+ */
+ private final int name;
+
+ /**
+ * The index of the constant pool item that contains the descriptor of this
+ * field.
+ */
+ private final int desc;
+
+ /**
+ * The index of the constant pool item that contains the signature of this
+ * field.
+ */
+ private int signature;
+
+ /**
+ * The index of the constant pool item that contains the constant value of
+ * this field.
+ */
+ private int value;
+
+ /**
+ * The runtime visible annotations of this field. May be <tt>null</tt>.
+ */
+ private AnnotationWriter anns;
+
+ /**
+ * The runtime invisible annotations of this field. May be <tt>null</tt>.
+ */
+ private AnnotationWriter ianns;
+
+ /**
+ * The non standard attributes of this field. May be <tt>null</tt>.
+ */
+ private Attribute attrs;
+
+ // ------------------------------------------------------------------------
+ // Constructor
+ // ------------------------------------------------------------------------
+
+ /**
+ * Constructs a new {@link FieldWriter}.
+ *
+ * @param cw the class writer to which this field must be added.
+ * @param access the field's access flags (see {@link Opcodes}).
+ * @param name the field's name.
+ * @param desc the field's descriptor (see {@link Type}).
+ * @param signature the field's signature. May be <tt>null</tt>.
+ * @param value the field's constant value. May be <tt>null</tt>.
+ */
+ FieldWriter(
+ final ClassWriter cw,
+ final int access,
+ final String name,
+ final String desc,
+ final String signature,
+ final Object value)
+ {
+ if (cw.firstField == null) {
+ cw.firstField = this;
+ } else {
+ cw.lastField.next = this;
+ }
+ cw.lastField = this;
+ this.cw = cw;
+ this.access = access;
+ this.name = cw.newUTF8(name);
+ this.desc = cw.newUTF8(desc);
+ if (ClassReader.SIGNATURES && signature != null) {
+ this.signature = cw.newUTF8(signature);
+ }
+ if (value != null) {
+ this.value = cw.newConstItem(value).index;
+ }
+ }
+
+ // ------------------------------------------------------------------------
+ // Implementation of the FieldVisitor interface
+ // ------------------------------------------------------------------------
+
+ public AnnotationVisitor visitAnnotation(
+ final String desc,
+ final boolean visible)
+ {
+ if (!ClassReader.ANNOTATIONS) {
+ return null;
+ }
+ ByteVector bv = new ByteVector();
+ // write type, and reserve space for values count
+ bv.putShort(cw.newUTF8(desc)).putShort(0);
+ AnnotationWriter aw = new AnnotationWriter(cw, true, bv, bv, 2);
+ if (visible) {
+ aw.next = anns;
+ anns = aw;
+ } else {
+ aw.next = ianns;
+ ianns = aw;
+ }
+ return aw;
+ }
+
+ public void visitAttribute(final Attribute attr) {
+ attr.next = attrs;
+ attrs = attr;
+ }
+
+ public void visitEnd() {
+ }
+
+ // ------------------------------------------------------------------------
+ // Utility methods
+ // ------------------------------------------------------------------------
+
+ /**
+ * Returns the size of this field.
+ *
+ * @return the size of this field.
+ */
+ int getSize() {
+ int size = 8;
+ if (value != 0) {
+ cw.newUTF8("ConstantValue");
+ size += 8;
+ }
+ if ((access & Opcodes.ACC_SYNTHETIC) != 0
+ && ((cw.version & 0xFFFF) < Opcodes.V1_5 || (access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) != 0))
+ {
+ cw.newUTF8("Synthetic");
+ size += 6;
+ }
+ if ((access & Opcodes.ACC_DEPRECATED) != 0) {
+ cw.newUTF8("Deprecated");
+ size += 6;
+ }
+ if (ClassReader.SIGNATURES && signature != 0) {
+ cw.newUTF8("Signature");
+ size += 8;
+ }
+ if (ClassReader.ANNOTATIONS && anns != null) {
+ cw.newUTF8("RuntimeVisibleAnnotations");
+ size += 8 + anns.getSize();
+ }
+ if (ClassReader.ANNOTATIONS && ianns != null) {
+ cw.newUTF8("RuntimeInvisibleAnnotations");
+ size += 8 + ianns.getSize();
+ }
+ if (attrs != null) {
+ size += attrs.getSize(cw, null, 0, -1, -1);
+ }
+ return size;
+ }
+
+ /**
+ * Puts the content of this field into the given byte vector.
+ *
+ * @param out where the content of this field must be put.
+ */
+ void put(final ByteVector out) {
+ int mask = Opcodes.ACC_DEPRECATED
+ | ClassWriter.ACC_SYNTHETIC_ATTRIBUTE
+ | ((access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) / (ClassWriter.ACC_SYNTHETIC_ATTRIBUTE / Opcodes.ACC_SYNTHETIC));
+ out.putShort(access & ~mask).putShort(name).putShort(desc);
+ int attributeCount = 0;
+ if (value != 0) {
+ ++attributeCount;
+ }
+ if ((access & Opcodes.ACC_SYNTHETIC) != 0
+ && ((cw.version & 0xFFFF) < Opcodes.V1_5 || (access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) != 0))
+ {
+ ++attributeCount;
+ }
+ if ((access & Opcodes.ACC_DEPRECATED) != 0) {
+ ++attributeCount;
+ }
+ if (ClassReader.SIGNATURES && signature != 0) {
+ ++attributeCount;
+ }
+ if (ClassReader.ANNOTATIONS && anns != null) {
+ ++attributeCount;
+ }
+ if (ClassReader.ANNOTATIONS && ianns != null) {
+ ++attributeCount;
+ }
+ if (attrs != null) {
+ attributeCount += attrs.getCount();
+ }
+ out.putShort(attributeCount);
+ if (value != 0) {
+ out.putShort(cw.newUTF8("ConstantValue"));
+ out.putInt(2).putShort(value);
+ }
+ if ((access & Opcodes.ACC_SYNTHETIC) != 0
+ && ((cw.version & 0xFFFF) < Opcodes.V1_5 || (access & ClassWriter.ACC_SYNTHETIC_ATTRIBUTE) != 0))
+ {
+ out.putShort(cw.newUTF8("Synthetic")).putInt(0);
+ }
+ if ((access & Opcodes.ACC_DEPRECATED) != 0) {
+ out.putShort(cw.newUTF8("Deprecated")).putInt(0);
+ }
+ if (ClassReader.SIGNATURES && signature != 0) {
+ out.putShort(cw.newUTF8("Signature"));
+ out.putInt(2).putShort(signature);
+ }
+ if (ClassReader.ANNOTATIONS && anns != null) {
+ out.putShort(cw.newUTF8("RuntimeVisibleAnnotations"));
+ anns.put(out);
+ }
+ if (ClassReader.ANNOTATIONS && ianns != null) {
+ out.putShort(cw.newUTF8("RuntimeInvisibleAnnotations"));
+ ianns.put(out);
+ }
+ if (attrs != null) {
+ attrs.put(cw, null, 0, -1, -1, out);
+ }
+ }
+}