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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.commons;

	import jdk.internal.org.objectweb.asm.AnnotationVisitor;
	import jdk.internal.org.objectweb.asm.Handle;
	import jdk.internal.org.objectweb.asm.Label;
	import jdk.internal.org.objectweb.asm.MethodVisitor;
	import jdk.internal.org.objectweb.asm.Opcodes;
	import jdk.internal.org.objectweb.asm.TypePath;

	/**
	* A {@link MethodVisitor} that remaps types with a {@link Remapper}.
	*
	* @author Eugene Kuleshov
	*/
	public class MethodRemapper extends MethodVisitor {

	/** The remapper used to remap the types in the visited field. */
	protected final Remapper remapper;

	/**
	* Constructs a new {@link MethodRemapper}. <i>Subclasses must not use this constructor</i>.
	* Instead, they must use the {@link #MethodRemapper(int,MethodVisitor,Remapper)} version.
	*
	* @param methodVisitor the method visitor this remapper must deleted to.
	* @param remapper the remapper to use to remap the types in the visited method.
	*/
	public MethodRemapper(final MethodVisitor methodVisitor, final Remapper remapper) {
	this(/* latest api = */ Opcodes.ASM8, methodVisitor, remapper);
	}

	/**
	* Constructs a new {@link MethodRemapper}.
	*
	* @param api the ASM API version supported by this remapper. Must be one of {@link
	* jdk.internal.org.objectweb.asm.Opcodes#ASM4}, {@link jdk.internal.org.objectweb.asm.Opcodes#ASM5} or {@link
	* jdk.internal.org.objectweb.asm.Opcodes#ASM6}, {@link jdk.internal.org.objectweb.asm.Opcodes#ASM7} or {@link
	* jdk.internal.org.objectweb.asm.Opcodes#ASM8}.
	* @param methodVisitor the method visitor this remapper must deleted to.
	* @param remapper the remapper to use to remap the types in the visited method.
	*/
	protected MethodRemapper(
	final int api, final MethodVisitor methodVisitor, final Remapper remapper) {
	super(api, methodVisitor);
	this.remapper = remapper;
	}

	@Override
	public AnnotationVisitor visitAnnotationDefault() {
	AnnotationVisitor annotationVisitor = super.visitAnnotationDefault();
	return annotationVisitor == null
	? annotationVisitor
	: createAnnotationRemapper(annotationVisitor);
	}

	@Override
	public AnnotationVisitor visitAnnotation(final String descriptor, final boolean visible) {
	AnnotationVisitor annotationVisitor =
	super.visitAnnotation(remapper.mapDesc(descriptor), visible);
	return annotationVisitor == null
	? annotationVisitor
	: createAnnotationRemapper(annotationVisitor);
	}

	@Override
	public AnnotationVisitor visitTypeAnnotation(
	final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) {
	AnnotationVisitor annotationVisitor =
	super.visitTypeAnnotation(typeRef, typePath, remapper.mapDesc(descriptor), visible);
	return annotationVisitor == null
	? annotationVisitor
	: createAnnotationRemapper(annotationVisitor);
	}

	@Override
	public AnnotationVisitor visitParameterAnnotation(
	final int parameter, final String descriptor, final boolean visible) {
	AnnotationVisitor annotationVisitor =
	super.visitParameterAnnotation(parameter, remapper.mapDesc(descriptor), visible);
	return annotationVisitor == null
	? annotationVisitor
	: createAnnotationRemapper(annotationVisitor);
	}

	@Override
	public void visitFrame(
	final int type,
	final int numLocal,
	final Object[] local,
	final int numStack,
	final Object[] stack) {
	super.visitFrame(
	type,
	numLocal,
	remapFrameTypes(numLocal, local),
	numStack,
	remapFrameTypes(numStack, stack));
	}

	private Object[] remapFrameTypes(final int numTypes, final Object[] frameTypes) {
	if (frameTypes == null) {
	return frameTypes;
	}
	Object[] remappedFrameTypes = null;
	for (int i = 0; i < numTypes; ++i) {
	if (frameTypes[i] instanceof String) {
	if (remappedFrameTypes == null) {
	remappedFrameTypes = new Object[numTypes];
	System.arraycopy(frameTypes, 0, remappedFrameTypes, 0, numTypes);
	}
	remappedFrameTypes[i] = remapper.mapType((String) frameTypes[i]);
	}
	}
	return remappedFrameTypes == null ? frameTypes : remappedFrameTypes;
	}

	@Override
	public void visitFieldInsn(
	final int opcode, final String owner, final String name, final String descriptor) {
	super.visitFieldInsn(
	opcode,
	remapper.mapType(owner),
	remapper.mapFieldName(owner, name, descriptor),
	remapper.mapDesc(descriptor));
	}

	@Override
	public void visitMethodInsn(
	final int opcodeAndSource,
	final String owner,
	final String name,
	final String descriptor,
	final boolean isInterface) {
	if (api < Opcodes.ASM5 && (opcodeAndSource & Opcodes.SOURCE_DEPRECATED) == 0) {
	// Redirect the call to the deprecated version of this method.
	super.visitMethodInsn(opcodeAndSource, owner, name, descriptor, isInterface);
	return;
	}
	super.visitMethodInsn(
	opcodeAndSource,
	remapper.mapType(owner),
	remapper.mapMethodName(owner, name, descriptor),
	remapper.mapMethodDesc(descriptor),
	isInterface);
	}

	@Override
	public void visitInvokeDynamicInsn(
	final String name,
	final String descriptor,
	final Handle bootstrapMethodHandle,
	final Object... bootstrapMethodArguments) {
	Object[] remappedBootstrapMethodArguments = new Object[bootstrapMethodArguments.length];
	for (int i = 0; i < bootstrapMethodArguments.length; ++i) {
	remappedBootstrapMethodArguments[i] = remapper.mapValue(bootstrapMethodArguments[i]);
	}
	super.visitInvokeDynamicInsn(
	remapper.mapInvokeDynamicMethodName(name, descriptor),
	remapper.mapMethodDesc(descriptor),
	(Handle) remapper.mapValue(bootstrapMethodHandle),
	remappedBootstrapMethodArguments);
	}

	@Override
	public void visitTypeInsn(final int opcode, final String type) {
	super.visitTypeInsn(opcode, remapper.mapType(type));
	}

	@Override
	public void visitLdcInsn(final Object value) {
	super.visitLdcInsn(remapper.mapValue(value));
	}

	@Override
	public void visitMultiANewArrayInsn(final String descriptor, final int numDimensions) {
	super.visitMultiANewArrayInsn(remapper.mapDesc(descriptor), numDimensions);
	}

	@Override
	public AnnotationVisitor visitInsnAnnotation(
	final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) {
	AnnotationVisitor annotationVisitor =
	super.visitInsnAnnotation(typeRef, typePath, remapper.mapDesc(descriptor), visible);
	return annotationVisitor == null
	? annotationVisitor
	: createAnnotationRemapper(annotationVisitor);
	}

	@Override
	public void visitTryCatchBlock(
	final Label start, final Label end, final Label handler, final String type) {
	super.visitTryCatchBlock(start, end, handler, type == null ? null : remapper.mapType(type));
	}

	@Override
	public AnnotationVisitor visitTryCatchAnnotation(
	final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) {
	AnnotationVisitor annotationVisitor =
	super.visitTryCatchAnnotation(typeRef, typePath, remapper.mapDesc(descriptor), visible);
	return annotationVisitor == null
	? annotationVisitor
	: createAnnotationRemapper(annotationVisitor);
	}

	@Override
	public void visitLocalVariable(
	final String name,
	final String descriptor,
	final String signature,
	final Label start,
	final Label end,
	final int index) {
	super.visitLocalVariable(
	name,
	remapper.mapDesc(descriptor),
	remapper.mapSignature(signature, true),
	start,
	end,
	index);
	}

	@Override
	public AnnotationVisitor visitLocalVariableAnnotation(
	final int typeRef,
	final TypePath typePath,
	final Label[] start,
	final Label[] end,
	final int[] index,
	final String descriptor,
	final boolean visible) {
	AnnotationVisitor annotationVisitor =
	super.visitLocalVariableAnnotation(
	typeRef, typePath, start, end, index, remapper.mapDesc(descriptor), visible);
	return annotationVisitor == null
	? annotationVisitor
	: createAnnotationRemapper(annotationVisitor);
	}

	/**
	* Constructs a new remapper for annotations. The default implementation of this method returns a
	* new {@link AnnotationRemapper}.
	*
	* @param annotationVisitor the AnnotationVisitor the remapper must delegate to.
	* @return the newly created remapper.
	*/
	protected AnnotationVisitor createAnnotationRemapper(final AnnotationVisitor annotationVisitor) {
	return new AnnotationRemapper(api, annotationVisitor, remapper);
	}
	}

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