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	/*
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	/*
	* This file is available under and governed by the GNU General Public
	* License version 2 only, as published by the Free Software Foundation.
	* However, the following notice accompanied the original version of this
	* file:
	*
	* ASM: a very small and fast Java bytecode manipulation framework
	* Copyright (c) 2000-2011 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 jdk.internal.org.objectweb.asm;

	/**
	* A visitor to visit a Java method. The methods of this class must be called in
	* the following order: ( <tt>visitParameter</tt> )* [
	* <tt>visitAnnotationDefault</tt> ] ( <tt>visitAnnotation</tt> \|
	* <tt>visitTypeAnnotation</tt> \| <tt>visitAttribute</tt> )* [
	* <tt>visitCode</tt> ( <tt>visitFrame</tt> \| <tt>visit<i>X</i>Insn</tt> \|
	* <tt>visitLabel</tt> \| <tt>visitInsnAnnotation</tt> \|
	* <tt>visitTryCatchBlock</tt> \| <tt>visitTryCatchBlockAnnotation</tt> \|
	* <tt>visitLocalVariable</tt> \| <tt>visitLocalVariableAnnotation</tt> \|
	* <tt>visitLineNumber</tt> )* <tt>visitMaxs</tt> ] <tt>visitEnd</tt>. In
	* addition, the <tt>visit<i>X</i>Insn</tt> and <tt>visitLabel</tt> methods must
	* be called in the sequential order of the bytecode instructions of the visited
	* code, <tt>visitInsnAnnotation</tt> must be called <i>after</i> the annotated
	* instruction, <tt>visitTryCatchBlock</tt> must be called <i>before</i> the
	* labels passed as arguments have been visited,
	* <tt>visitTryCatchBlockAnnotation</tt> must be called <i>after</i> the
	* corresponding try catch block has been visited, and the
	* <tt>visitLocalVariable</tt>, <tt>visitLocalVariableAnnotation</tt> and
	* <tt>visitLineNumber</tt> methods must be called <i>after</i> the labels
	* passed as arguments have been visited.
	*
	* @author Eric Bruneton
	*/
	public abstract class MethodVisitor {

	/**
	* The ASM API version implemented by this visitor. The value of this field
	* must be one of {@link Opcodes#ASM4} or {@link Opcodes#ASM5}.
	*/
	protected final int api;

	/**
	* The method visitor to which this visitor must delegate method calls. May
	* be null.
	*/
	protected MethodVisitor mv;

	/**
	* Constructs a new {@link MethodVisitor}.
	*
	* @param api
	* the ASM API version implemented by this visitor. Must be one
	* of {@link Opcodes#ASM4} or {@link Opcodes#ASM5}.
	*/
	public MethodVisitor(final int api) {
	this(api, null);
	}

	/**
	* Constructs a new {@link MethodVisitor}.
	*
	* @param api
	* the ASM API version implemented by this visitor. Must be one
	* of {@link Opcodes#ASM4} or {@link Opcodes#ASM5}.
	* @param mv
	* the method visitor to which this visitor must delegate method
	* calls. May be null.
	*/
	public MethodVisitor(final int api, final MethodVisitor mv) {
	if (api != Opcodes.ASM4 && api != Opcodes.ASM5) {
	throw new IllegalArgumentException();
	}
	this.api = api;
	this.mv = mv;
	}

	// -------------------------------------------------------------------------
	// Parameters, annotations and non standard attributes
	// -------------------------------------------------------------------------

	/**
	* Visits a parameter of this method.
	*
	* @param name
	* parameter name or null if none is provided.
	* @param access
	* the parameter's access flags, only <tt>ACC_FINAL</tt>,
	* <tt>ACC_SYNTHETIC</tt> or/and <tt>ACC_MANDATED</tt> are
	* allowed (see {@link Opcodes}).
	*/
	public void visitParameter(String name, int access) {
	if (api < Opcodes.ASM5) {
	throw new RuntimeException();
	}
	if (mv != null) {
	mv.visitParameter(name, access);
	}
	}

	/**
	* Visits the default value of this annotation interface method.
	*
	* @return a visitor to the visit the actual default value of this
	* annotation interface method, or <tt>null</tt> if this visitor is
	* not interested in visiting this default value. The 'name'
	* parameters passed to the methods of this annotation visitor are
	* ignored. Moreover, exacly one visit method must be called on this
	* annotation visitor, followed by visitEnd.
	*/
	public AnnotationVisitor visitAnnotationDefault() {
	if (mv != null) {
	return mv.visitAnnotationDefault();
	}
	return null;
	}

	/**
	* Visits an annotation of this method.
	*
	* @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.
	*/
	public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
	if (mv != null) {
	return mv.visitAnnotation(desc, visible);
	}
	return null;
	}

	/**
	* Visits an annotation on a type in the method signature.
	*
	* @param typeRef
	* a reference to the annotated type. The sort of this type
	* reference must be {@link TypeReference#METHOD_TYPE_PARAMETER
	* METHOD_TYPE_PARAMETER},
	* {@link TypeReference#METHOD_TYPE_PARAMETER_BOUND
	* METHOD_TYPE_PARAMETER_BOUND},
	* {@link TypeReference#METHOD_RETURN METHOD_RETURN},
	* {@link TypeReference#METHOD_RECEIVER METHOD_RECEIVER},
	* {@link TypeReference#METHOD_FORMAL_PARAMETER
	* METHOD_FORMAL_PARAMETER} or {@link TypeReference#THROWS
	* THROWS}. See {@link TypeReference}.
	* @param typePath
	* the path to the annotated type argument, wildcard bound, array
	* element type, or static inner type within 'typeRef'. May be
	* <tt>null</tt> if the annotation targets 'typeRef' as a whole.
	* @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.
	*/
	public AnnotationVisitor visitTypeAnnotation(int typeRef,
	TypePath typePath, String desc, boolean visible) {
	if (api < Opcodes.ASM5) {
	throw new RuntimeException();
	}
	if (mv != null) {
	return mv.visitTypeAnnotation(typeRef, typePath, desc, visible);
	}
	return null;
	}

	/**
	* Visits an annotation of a parameter this method.
	*
	* @param parameter
	* the parameter index.
	* @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.
	*/
	public AnnotationVisitor visitParameterAnnotation(int parameter,
	String desc, boolean visible) {
	if (mv != null) {
	return mv.visitParameterAnnotation(parameter, desc, visible);
	}
	return null;
	}

	/**
	* Visits a non standard attribute of this method.
	*
	* @param attr
	* an attribute.
	*/
	public void visitAttribute(Attribute attr) {
	if (mv != null) {
	mv.visitAttribute(attr);
	}
	}

	/**
	* Starts the visit of the method's code, if any (i.e. non abstract method).
	*/
	public void visitCode() {
	if (mv != null) {
	mv.visitCode();
	}
	}

	/**
	* Visits the current state of the local variables and operand stack
	* elements. This method must(*) be called <i>just before</i> any
	* instruction <b>i</b> that follows an unconditional branch instruction
	* such as GOTO or THROW, that is the target of a jump instruction, or that
	* starts an exception handler block. The visited types must describe the
	* values of the local variables and of the operand stack elements <i>just
	* before</i> <b>i</b> is executed.<br>
	* <br>
	* (*) this is mandatory only for classes whose version is greater than or
	* equal to {@link Opcodes#V1_6 V1_6}. <br>
	* <br>
	* The frames of a method must be given either in expanded form, or in
	* compressed form (all frames must use the same format, i.e. you must not
	* mix expanded and compressed frames within a single method):
	* <ul>
	* <li>In expanded form, all frames must have the F_NEW type.</li>
	* <li>In compressed form, frames are basically "deltas" from the state of
	* the previous frame:
	* <ul>
	* <li>{@link Opcodes#F_SAME} representing frame with exactly the same
	* locals as the previous frame and with the empty stack.</li>
	* <li>{@link Opcodes#F_SAME1} representing frame with exactly the same
	* locals as the previous frame and with single value on the stack (
	* <code>nStack</code> is 1 and <code>stack[0]</code> contains value for the
	* type of the stack item).</li>
	* <li>{@link Opcodes#F_APPEND} representing frame with current locals are
	* the same as the locals in the previous frame, except that additional
	* locals are defined (<code>nLocal</code> is 1, 2 or 3 and
	* <code>local</code> elements contains values representing added types).</li>
	* <li>{@link Opcodes#F_CHOP} representing frame with current locals are the
	* same as the locals in the previous frame, except that the last 1-3 locals
	* are absent and with the empty stack (<code>nLocals</code> is 1, 2 or 3).</li>
	* <li>{@link Opcodes#F_FULL} representing complete frame data.</li>
	* </ul>
	* </li>
	* </ul>
	* <br>
	* In both cases the first frame, corresponding to the method's parameters
	* and access flags, is implicit and must not be visited. Also, it is
	* illegal to visit two or more frames for the same code location (i.e., at
	* least one instruction must be visited between two calls to visitFrame).
	*
	* @param type
	* the type of this stack map frame. Must be
	* {@link Opcodes#F_NEW} for expanded frames, or
	* {@link Opcodes#F_FULL}, {@link Opcodes#F_APPEND},
	* {@link Opcodes#F_CHOP}, {@link Opcodes#F_SAME} or
	* {@link Opcodes#F_APPEND}, {@link Opcodes#F_SAME1} for
	* compressed frames.
	* @param nLocal
	* the number of local variables in the visited frame.
	* @param local
	* the local variable types in this frame. This array must not be
	* modified. Primitive types are represented by
	* {@link Opcodes#TOP}, {@link Opcodes#INTEGER},
	* {@link Opcodes#FLOAT}, {@link Opcodes#LONG},
	* {@link Opcodes#DOUBLE},{@link Opcodes#NULL} or
	* {@link Opcodes#UNINITIALIZED_THIS} (long and double are
	* represented by a single element). Reference types are
	* represented by String objects (representing internal names),
	* and uninitialized types by Label objects (this label
	* designates the NEW instruction that created this uninitialized
	* value).
	* @param nStack
	* the number of operand stack elements in the visited frame.
	* @param stack
	* the operand stack types in this frame. This array must not be
	* modified. Its content has the same format as the "local"
	* array.
	* @throws IllegalStateException
	* if a frame is visited just after another one, without any
	* instruction between the two (unless this frame is a
	* Opcodes#F_SAME frame, in which case it is silently ignored).
	*/
	public void visitFrame(int type, int nLocal, Object[] local, int nStack,
	Object[] stack) {
	if (mv != null) {
	mv.visitFrame(type, nLocal, local, nStack, stack);
	}
	}

	// -------------------------------------------------------------------------
	// Normal instructions
	// -------------------------------------------------------------------------

	/**
	* Visits a zero operand instruction.
	*
	* @param opcode
	* the opcode of the instruction to be visited. This opcode is
	* either NOP, ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1,
	* ICONST_2, ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1,
	* FCONST_0, FCONST_1, FCONST_2, DCONST_0, DCONST_1, IALOAD,
	* LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD,
	* IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE,
	* SASTORE, POP, POP2, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1,
	* DUP2_X2, SWAP, IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB,
	* IMUL, LMUL, FMUL, DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM,
	* FREM, DREM, INEG, LNEG, FNEG, DNEG, ISHL, LSHL, ISHR, LSHR,
	* IUSHR, LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, I2L, I2F, I2D,
	* L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C, I2S,
	* LCMP, FCMPL, FCMPG, DCMPL, DCMPG, IRETURN, LRETURN, FRETURN,
	* DRETURN, ARETURN, RETURN, ARRAYLENGTH, ATHROW, MONITORENTER,
	* or MONITOREXIT.
	*/
	public void visitInsn(int opcode) {
	if (mv != null) {
	mv.visitInsn(opcode);
	}
	}

	/**
	* Visits an instruction with a single int operand.
	*
	* @param opcode
	* the opcode of the instruction to be visited. This opcode is
	* either BIPUSH, SIPUSH or NEWARRAY.
	* @param operand
	* the operand of the instruction to be visited.<br>
	* When opcode is BIPUSH, operand value should be between
	* Byte.MIN_VALUE and Byte.MAX_VALUE.<br>
	* When opcode is SIPUSH, operand value should be between
	* Short.MIN_VALUE and Short.MAX_VALUE.<br>
	* When opcode is NEWARRAY, operand value should be one of
	* {@link Opcodes#T_BOOLEAN}, {@link Opcodes#T_CHAR},
	* {@link Opcodes#T_FLOAT}, {@link Opcodes#T_DOUBLE},
	* {@link Opcodes#T_BYTE}, {@link Opcodes#T_SHORT},
	* {@link Opcodes#T_INT} or {@link Opcodes#T_LONG}.
	*/
	public void visitIntInsn(int opcode, int operand) {
	if (mv != null) {
	mv.visitIntInsn(opcode, operand);
	}
	}

	/**
	* Visits a local variable instruction. A local variable instruction is an
	* instruction that loads or stores the value of a local variable.
	*
	* @param opcode
	* the opcode of the local variable instruction to be visited.
	* This opcode is either ILOAD, LLOAD, FLOAD, DLOAD, ALOAD,
	* ISTORE, LSTORE, FSTORE, DSTORE, ASTORE or RET.
	* @param var
	* the operand of the instruction to be visited. This operand is
	* the index of a local variable.
	*/
	public void visitVarInsn(int opcode, int var) {
	if (mv != null) {
	mv.visitVarInsn(opcode, var);
	}
	}

	/**
	* Visits a type instruction. A type instruction is an instruction that
	* takes the internal name of a class as parameter.
	*
	* @param opcode
	* the opcode of the type instruction to be visited. This opcode
	* is either NEW, ANEWARRAY, CHECKCAST or INSTANCEOF.
	* @param type
	* the operand of the instruction to be visited. This operand
	* must be the internal name of an object or array class (see
	* {@link Type#getInternalName() getInternalName}).
	*/
	public void visitTypeInsn(int opcode, String type) {
	if (mv != null) {
	mv.visitTypeInsn(opcode, type);
	}
	}

	/**
	* Visits a field instruction. A field instruction is an instruction that
	* loads or stores the value of a field of an object.
	*
	* @param opcode
	* the opcode of the type instruction to be visited. This opcode
	* is either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD.
	* @param owner
	* the internal name of the field's owner class (see
	* {@link Type#getInternalName() getInternalName}).
	* @param name
	* the field's name.
	* @param desc
	* the field's descriptor (see {@link Type Type}).
	*/
	public void visitFieldInsn(int opcode, String owner, String name,
	String desc) {
	if (mv != null) {
	mv.visitFieldInsn(opcode, owner, name, desc);
	}
	}

	/**
	* Visits a method instruction. A method instruction is an instruction that
	* invokes a method.
	*
	* @param opcode
	* the opcode of the type instruction to be visited. This opcode
	* is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC or
	* INVOKEINTERFACE.
	* @param owner
	* the internal name of the method's owner class (see
	* {@link Type#getInternalName() getInternalName}).
	* @param name
	* the method's name.
	* @param desc
	* the method's descriptor (see {@link Type Type}).
	*/
	@Deprecated
	public void visitMethodInsn(int opcode, String owner, String name,
	String desc) {
	if (api >= Opcodes.ASM5) {
	boolean itf = opcode == Opcodes.INVOKEINTERFACE;
	visitMethodInsn(opcode, owner, name, desc, itf);
	return;
	}
	if (mv != null) {
	mv.visitMethodInsn(opcode, owner, name, desc);
	}
	}

	/**
	* Visits a method instruction. A method instruction is an instruction that
	* invokes a method.
	*
	* @param opcode
	* the opcode of the type instruction to be visited. This opcode
	* is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC or
	* INVOKEINTERFACE.
	* @param owner
	* the internal name of the method's owner class (see
	* {@link Type#getInternalName() getInternalName}).
	* @param name
	* the method's name.
	* @param desc
	* the method's descriptor (see {@link Type Type}).
	* @param itf
	* if the method's owner class is an interface.
	*/
	public void visitMethodInsn(int opcode, String owner, String name,
	String desc, boolean itf) {
	if (api < Opcodes.ASM5) {
	if (itf != (opcode == Opcodes.INVOKEINTERFACE)) {
	throw new IllegalArgumentException(
	"INVOKESPECIAL/STATIC on interfaces require ASM 5");
	}
	visitMethodInsn(opcode, owner, name, desc);
	return;
	}
	if (mv != null) {
	mv.visitMethodInsn(opcode, owner, name, desc, itf);
	}
	}

	/**
	* Visits an invokedynamic instruction.
	*
	* @param name
	* the method's name.
	* @param desc
	* the method's descriptor (see {@link Type Type}).
	* @param bsm
	* the bootstrap method.
	* @param bsmArgs
	* the bootstrap method constant arguments. Each argument must be
	* an {@link Integer}, {@link Float}, {@link Long},
	* {@link Double}, {@link String}, {@link Type} or {@link Handle}
	* value. This method is allowed to modify the content of the
	* array so a caller should expect that this array may change.
	*/
	public void visitInvokeDynamicInsn(String name, String desc, Handle bsm,
	Object... bsmArgs) {
	if (mv != null) {
	mv.visitInvokeDynamicInsn(name, desc, bsm, bsmArgs);
	}
	}

	/**
	* Visits a jump instruction. A jump instruction is an instruction that may
	* jump to another instruction.
	*
	* @param opcode
	* the opcode of the type instruction to be visited. This opcode
	* is either IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE, IF_ICMPEQ,
	* IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE,
	* IF_ACMPEQ, IF_ACMPNE, GOTO, JSR, IFNULL or IFNONNULL.
	* @param label
	* the operand of the instruction to be visited. This operand is
	* a label that designates the instruction to which the jump
	* instruction may jump.
	*/
	public void visitJumpInsn(int opcode, Label label) {
	if (mv != null) {
	mv.visitJumpInsn(opcode, label);
	}
	}

	/**
	* Visits a label. A label designates the instruction that will be visited
	* just after it.
	*
	* @param label
	* a {@link Label Label} object.
	*/
	public void visitLabel(Label label) {
	if (mv != null) {
	mv.visitLabel(label);
	}
	}

	// -------------------------------------------------------------------------
	// Special instructions
	// -------------------------------------------------------------------------

	/**
	* Visits a LDC instruction. Note that new constant types may be added in
	* future versions of the Java Virtual Machine. To easily detect new
	* constant types, implementations of this method should check for
	* unexpected constant types, like this:
	*
	* <pre>
	* if (cst instanceof Integer) {
	* // ...
	* } else if (cst instanceof Float) {
	* // ...
	* } else if (cst instanceof Long) {
	* // ...
	* } else if (cst instanceof Double) {
	* // ...
	* } else if (cst instanceof String) {
	* // ...
	* } else if (cst instanceof Type) {
	* int sort = ((Type) cst).getSort();
	* if (sort == Type.OBJECT) {
	* // ...
	* } else if (sort == Type.ARRAY) {
	* // ...
	* } else if (sort == Type.METHOD) {
	* // ...
	* } else {
	* // throw an exception
	* }
	* } else if (cst instanceof Handle) {
	* // ...
	* } else {
	* // throw an exception
	* }
	* </pre>
	*
	* @param cst
	* the constant to be loaded on the stack. This parameter must be
	* a non null {@link Integer}, a {@link Float}, a {@link Long}, a
	* {@link Double}, a {@link String}, a {@link Type} of OBJECT or
	* ARRAY sort for <tt>.class</tt> constants, for classes whose
	* version is 49.0, a {@link Type} of METHOD sort or a
	* {@link Handle} for MethodType and MethodHandle constants, for
	* classes whose version is 51.0.
	*/
	public void visitLdcInsn(Object cst) {
	if (mv != null) {
	mv.visitLdcInsn(cst);
	}
	}

	/**
	* Visits an IINC instruction.
	*
	* @param var
	* index of the local variable to be incremented.
	* @param increment
	* amount to increment the local variable by.
	*/
	public void visitIincInsn(int var, int increment) {
	if (mv != null) {
	mv.visitIincInsn(var, increment);
	}
	}

	/**
	* Visits a TABLESWITCH instruction.
	*
	* @param min
	* the minimum key value.
	* @param max
	* the maximum key value.
	* @param dflt
	* beginning of the default handler block.
	* @param labels
	* beginnings of the handler blocks. <tt>labels[i]</tt> is the
	* beginning of the handler block for the <tt>min + i</tt> key.
	*/
	public void visitTableSwitchInsn(int min, int max, Label dflt,
	Label... labels) {
	if (mv != null) {
	mv.visitTableSwitchInsn(min, max, dflt, labels);
	}
	}

	/**
	* Visits a LOOKUPSWITCH instruction.
	*
	* @param dflt
	* beginning of the default handler block.
	* @param keys
	* the values of the keys.
	* @param labels
	* beginnings of the handler blocks. <tt>labels[i]</tt> is the
	* beginning of the handler block for the <tt>keys[i]</tt> key.
	*/
	public void visitLookupSwitchInsn(Label dflt, int[] keys, Label[] labels) {
	if (mv != null) {
	mv.visitLookupSwitchInsn(dflt, keys, labels);
	}
	}

	/**
	* Visits a MULTIANEWARRAY instruction.
	*
	* @param desc
	* an array type descriptor (see {@link Type Type}).
	* @param dims
	* number of dimensions of the array to allocate.
	*/
	public void visitMultiANewArrayInsn(String desc, int dims) {
	if (mv != null) {
	mv.visitMultiANewArrayInsn(desc, dims);
	}
	}

	/**
	* Visits an annotation on an instruction. This method must be called just
	* <i>after</i> the annotated instruction. It can be called several times
	* for the same instruction.
	*
	* @param typeRef
	* a reference to the annotated type. The sort of this type
	* reference must be {@link TypeReference#INSTANCEOF INSTANCEOF},
	* {@link TypeReference#NEW NEW},
	* {@link TypeReference#CONSTRUCTOR_REFERENCE
	* CONSTRUCTOR_REFERENCE}, {@link TypeReference#METHOD_REFERENCE
	* METHOD_REFERENCE}, {@link TypeReference#CAST CAST},
	* {@link TypeReference#CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT
	* CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT},
	* {@link TypeReference#METHOD_INVOCATION_TYPE_ARGUMENT
	* METHOD_INVOCATION_TYPE_ARGUMENT},
	* {@link TypeReference#CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT
	* CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT}, or
	* {@link TypeReference#METHOD_REFERENCE_TYPE_ARGUMENT
	* METHOD_REFERENCE_TYPE_ARGUMENT}. See {@link TypeReference}.
	* @param typePath
	* the path to the annotated type argument, wildcard bound, array
	* element type, or static inner type within 'typeRef'. May be
	* <tt>null</tt> if the annotation targets 'typeRef' as a whole.
	* @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.
	*/
	public AnnotationVisitor visitInsnAnnotation(int typeRef,
	TypePath typePath, String desc, boolean visible) {
	if (api < Opcodes.ASM5) {
	throw new RuntimeException();
	}
	if (mv != null) {
	return mv.visitInsnAnnotation(typeRef, typePath, desc, visible);
	}
	return null;
	}

	// -------------------------------------------------------------------------
	// Exceptions table entries, debug information, max stack and max locals
	// -------------------------------------------------------------------------

	/**
	* Visits a try catch block.
	*
	* @param start
	* beginning of the exception handler's scope (inclusive).
	* @param end
	* end of the exception handler's scope (exclusive).
	* @param handler
	* beginning of the exception handler's code.
	* @param type
	* internal name of the type of exceptions handled by the
	* handler, or <tt>null</tt> to catch any exceptions (for
	* "finally" blocks).
	* @throws IllegalArgumentException
	* if one of the labels has already been visited by this visitor
	* (by the {@link #visitLabel visitLabel} method).
	*/
	public void visitTryCatchBlock(Label start, Label end, Label handler,
	String type) {
	if (mv != null) {
	mv.visitTryCatchBlock(start, end, handler, type);
	}
	}

	/**
	* Visits an annotation on an exception handler type. This method must be
	* called <i>after</i> the {@link #visitTryCatchBlock} for the annotated
	* exception handler. It can be called several times for the same exception
	* handler.
	*
	* @param typeRef
	* a reference to the annotated type. The sort of this type
	* reference must be {@link TypeReference#EXCEPTION_PARAMETER
	* EXCEPTION_PARAMETER}. See {@link TypeReference}.
	* @param typePath
	* the path to the annotated type argument, wildcard bound, array
	* element type, or static inner type within 'typeRef'. May be
	* <tt>null</tt> if the annotation targets 'typeRef' as a whole.
	* @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.
	*/
	public AnnotationVisitor visitTryCatchAnnotation(int typeRef,
	TypePath typePath, String desc, boolean visible) {
	if (api < Opcodes.ASM5) {
	throw new RuntimeException();
	}
	if (mv != null) {
	return mv.visitTryCatchAnnotation(typeRef, typePath, desc, visible);
	}
	return null;
	}

	/**
	* Visits a local variable declaration.
	*
	* @param name
	* the name of a local variable.
	* @param desc
	* the type descriptor of this local variable.
	* @param signature
	* the type signature of this local variable. May be
	* <tt>null</tt> if the local variable type does not use generic
	* types.
	* @param start
	* the first instruction corresponding to the scope of this local
	* variable (inclusive).
	* @param end
	* the last instruction corresponding to the scope of this local
	* variable (exclusive).
	* @param index
	* the local variable's index.
	* @throws IllegalArgumentException
	* if one of the labels has not already been visited by this
	* visitor (by the {@link #visitLabel visitLabel} method).
	*/
	public void visitLocalVariable(String name, String desc, String signature,
	Label start, Label end, int index) {
	if (mv != null) {
	mv.visitLocalVariable(name, desc, signature, start, end, index);
	}
	}

	/**
	* Visits an annotation on a local variable type.
	*
	* @param typeRef
	* a reference to the annotated type. The sort of this type
	* reference must be {@link TypeReference#LOCAL_VARIABLE
	* LOCAL_VARIABLE} or {@link TypeReference#RESOURCE_VARIABLE
	* RESOURCE_VARIABLE}. See {@link TypeReference}.
	* @param typePath
	* the path to the annotated type argument, wildcard bound, array
	* element type, or static inner type within 'typeRef'. May be
	* <tt>null</tt> if the annotation targets 'typeRef' as a whole.
	* @param start
	* the fist instructions corresponding to the continuous ranges
	* that make the scope of this local variable (inclusive).
	* @param end
	* the last instructions corresponding to the continuous ranges
	* that make the scope of this local variable (exclusive). This
	* array must have the same size as the 'start' array.
	* @param index
	* the local variable's index in each range. This array must have
	* the same size as the 'start' array.
	* @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.
	*/
	public AnnotationVisitor visitLocalVariableAnnotation(int typeRef,
	TypePath typePath, Label[] start, Label[] end, int[] index,
	String desc, boolean visible) {
	if (api < Opcodes.ASM5) {
	throw new RuntimeException();
	}
	if (mv != null) {
	return mv.visitLocalVariableAnnotation(typeRef, typePath, start,
	end, index, desc, visible);
	}
	return null;
	}

	/**
	* Visits a line number declaration.
	*
	* @param line
	* a line number. This number refers to the source file from
	* which the class was compiled.
	* @param start
	* the first instruction corresponding to this line number.
	* @throws IllegalArgumentException
	* if <tt>start</tt> has not already been visited by this
	* visitor (by the {@link #visitLabel visitLabel} method).
	*/
	public void visitLineNumber(int line, Label start) {
	if (mv != null) {
	mv.visitLineNumber(line, start);
	}
	}

	/**
	* Visits the maximum stack size and the maximum number of local variables
	* of the method.
	*
	* @param maxStack
	* maximum stack size of the method.
	* @param maxLocals
	* maximum number of local variables for the method.
	*/
	public void visitMaxs(int maxStack, int maxLocals) {
	if (mv != null) {
	mv.visitMaxs(maxStack, maxLocals);
	}
	}

	/**
	* Visits the end of the method. This method, which is the last one to be
	* called, is used to inform the visitor that all the annotations and
	* attributes of the method have been visited.
	*/
	public void visitEnd() {
	if (mv != null) {
	mv.visitEnd();
	}
	}
	}

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