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// 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 org.objectweb.asm.commons;
import java.util.List;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.Attribute;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.ModuleVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.TypePath;
/**
* A {@link ClassVisitor} that remaps types with a {@link Remapper}.
*
* @author Eugene Kuleshov
*/
public class ClassRemapper extends ClassVisitor {
/** The remapper used to remap the types in the visited class. */
protected final Remapper remapper;
/** The internal name of the visited class. */
protected String className;
/**
* Constructs a new {@link ClassRemapper}. Subclasses must not use this constructor.
* Instead, they must use the {@link #ClassRemapper(int,ClassVisitor,Remapper)} version.
*
* @param classVisitor the class visitor this remapper must deleted to.
* @param remapper the remapper to use to remap the types in the visited class.
*/
public ClassRemapper(final ClassVisitor classVisitor, final Remapper remapper) {
this(Opcodes.ASM6, classVisitor, remapper);
}
/**
* Constructs a new {@link ClassRemapper}.
*
* @param api the ASM API version supported by this remapper. Must be one of {@link
* org.objectweb.asm.Opcodes#ASM4}, {@link org.objectweb.asm.Opcodes#ASM5}, {@link
* org.objectweb.asm.Opcodes#ASM6} or {@link org.objectweb.asm.Opcodes#ASM7_EXPERIMENTAL}.
* @param classVisitor the class visitor this remapper must deleted to.
* @param remapper the remapper to use to remap the types in the visited class.
*/
protected ClassRemapper(final int api, final ClassVisitor classVisitor, final Remapper remapper) {
super(api, classVisitor);
this.remapper = remapper;
}
@Override
public void visit(
final int version,
final int access,
final String name,
final String signature,
final String superName,
final String[] interfaces) {
this.className = name;
super.visit(
version,
access,
remapper.mapType(name),
remapper.mapSignature(signature, false),
remapper.mapType(superName),
interfaces == null ? null : remapper.mapTypes(interfaces));
}
@Override
public ModuleVisitor visitModule(final String name, final int flags, final String version) {
ModuleVisitor moduleVisitor = super.visitModule(remapper.mapModuleName(name), flags, version);
return moduleVisitor == null ? null : createModuleRemapper(moduleVisitor);
}
@Override
public AnnotationVisitor visitAnnotation(final String descriptor, final boolean visible) {
AnnotationVisitor annotationVisitor =
super.visitAnnotation(remapper.mapDesc(descriptor), visible);
return annotationVisitor == null ? null : 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 ? null : createAnnotationRemapper(annotationVisitor);
}
@Override
public void visitAttribute(final Attribute attribute) {
if (attribute instanceof ModuleHashesAttribute) {
ModuleHashesAttribute moduleHashesAttribute = (ModuleHashesAttribute) attribute;
List modules = moduleHashesAttribute.modules;
for (int i = 0; i < modules.size(); ++i) {
modules.set(i, remapper.mapModuleName(modules.get(i)));
}
}
super.visitAttribute(attribute);
}
@Override
public FieldVisitor visitField(
final int access,
final String name,
final String descriptor,
final String signature,
final Object value) {
FieldVisitor fieldVisitor =
super.visitField(
access,
remapper.mapFieldName(className, name, descriptor),
remapper.mapDesc(descriptor),
remapper.mapSignature(signature, true),
remapper.mapValue(value));
return fieldVisitor == null ? null : createFieldRemapper(fieldVisitor);
}
@Override
public MethodVisitor visitMethod(
final int access,
final String name,
final String descriptor,
final String signature,
final String[] exceptions) {
String remappedDescriptor = remapper.mapMethodDesc(descriptor);
MethodVisitor methodVisitor =
super.visitMethod(
access,
remapper.mapMethodName(className, name, descriptor),
remappedDescriptor,
remapper.mapSignature(signature, false),
exceptions == null ? null : remapper.mapTypes(exceptions));
return methodVisitor == null ? null : createMethodRemapper(methodVisitor);
}
@Override
public void visitInnerClass(
final String name, final String outerName, final String innerName, final int access) {
super.visitInnerClass(
remapper.mapType(name),
outerName == null ? null : remapper.mapType(outerName),
innerName,
access);
}
@Override
public void visitOuterClass(final String owner, final String name, final String descriptor) {
super.visitOuterClass(
remapper.mapType(owner),
name == null ? null : remapper.mapMethodName(owner, name, descriptor),
descriptor == null ? null : remapper.mapMethodDesc(descriptor));
}
@Override
public void visitNestHostExperimental(final String nestHost) {
super.visitNestHostExperimental(remapper.mapType(nestHost));
}
@Override
public void visitNestMemberExperimental(final String nestMember) {
super.visitNestMemberExperimental(remapper.mapType(nestMember));
}
/**
* Constructs a new remapper for fields. The default implementation of this method returns a new
* {@link FieldRemapper}.
*
* @param fieldVisitor the FieldVisitor the remapper must delegate to.
* @return the newly created remapper.
*/
protected FieldVisitor createFieldRemapper(final FieldVisitor fieldVisitor) {
return new FieldRemapper(api, fieldVisitor, remapper);
}
/**
* Constructs a new remapper for methods. The default implementation of this method returns a new
* {@link MethodRemapper}.
*
* @param methodVisitor the MethodVisitor the remapper must delegate to.
* @return the newly created remapper.
*/
protected MethodVisitor createMethodRemapper(final MethodVisitor methodVisitor) {
return new MethodRemapper(api, methodVisitor, remapper);
}
/**
* 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);
}
/**
* Constructs a new remapper for modules. The default implementation of this method returns a new
* {@link ModuleRemapper}.
*
* @param moduleVisitor the ModuleVisitor the remapper must delegate to.
* @return the newly created remapper.
*/
protected ModuleVisitor createModuleRemapper(final ModuleVisitor moduleVisitor) {
return new ModuleRemapper(api, moduleVisitor, remapper);
}
}
