Look up field/method access for all remappings

Fixes #60
This commit is contained in:
Jonathan Coates 2021-03-11 19:01:27 +11:00 committed by md_5
parent 61aaffe27e
commit ac2c4663cb
3 changed files with 120 additions and 48 deletions

View File

@ -77,7 +77,7 @@ public abstract class CustomRemapper extends Remapper {
* Good: (TK;)Lzt<TK;TT;TR;>.a; * Good: (TK;)Lzt<TK;TT;TR;>.a;
*/ */
static class ProguardSignatureFixer extends SignatureRemapper { static class ProguardSignatureFixer extends SignatureRemapper {
private Stack<String> classNames = new Stack<String>(); private final Stack<String> classNames = new Stack<String>();
ProguardSignatureFixer(SignatureVisitor sv, Remapper m) { ProguardSignatureFixer(SignatureVisitor sv, Remapper m) {
super(sv, m); super(sv, m);

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@ -0,0 +1,112 @@
/**
* Copyright (c) 2012, md_5. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 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.
*
* The name of the author may not 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 net.md_5.specialsource;
import net.md_5.specialsource.repo.ClassRepo;
import net.md_5.specialsource.repo.RuntimeRepo;
import org.objectweb.asm.tree.ClassNode;
import org.objectweb.asm.tree.FieldNode;
import org.objectweb.asm.tree.MethodNode;
/**
* Wraps a {@link CustomRemapper} with "true" access lookup.
*/
public class RepoRemapper extends CustomRemapper {
private final CustomRemapper remapper;
private final ClassRepo classRepo;
public RepoRemapper(CustomRemapper remapper, ClassRepo classRepo) {
this.remapper = remapper;
this.classRepo = classRepo;
}
@Override
public String map(String typeName) {
return remapper.map(typeName);
}
@Override
public String mapMethodName(String owner, String name, String desc) {
return mapMethodName(owner, name, desc, findAccess(NodeType.METHOD, owner, name, desc));
}
@Override
public String mapMethodName(String owner, String name, String desc, int access) {
return remapper.mapMethodName(owner, name, desc, access);
}
@Override
public String mapFieldName(String owner, String name, String desc) {
return mapFieldName(owner, name, desc, findAccess(NodeType.FIELD, owner, name, desc));
}
@Override
public String mapFieldName(String owner, String name, String desc, int access) {
return remapper.mapFieldName(owner, name, desc, access);
}
private int findAccess(NodeType type, String owner, String name, String desc, ClassRepo repo) {
int access = -1;
if (repo != null) {
ClassNode clazz = classRepo.findClass(owner);
if (clazz != null) {
switch (type) {
case FIELD:
for (FieldNode f : clazz.fields) {
if (f.name.equals(name) && f.desc.equals(desc)) {
access = f.access;
break;
}
}
break;
case METHOD:
for (MethodNode m : classRepo.findClass(owner).methods) {
if (m.name.equals(name) && m.desc.equals(desc)) {
access = m.access;
break;
}
}
break;
}
}
}
return access;
}
public int findAccess(NodeType type, String owner, String name, String desc) {
int access;
access = findAccess(type, owner, name, desc, classRepo);
if (access == -1) {
access = findAccess(type, owner, name, desc, RuntimeRepo.getInstance());
}
return access;
}
}

View File

@ -33,15 +33,11 @@ import java.util.Collection;
import com.google.common.base.Preconditions; import com.google.common.base.Preconditions;
import net.md_5.specialsource.repo.ClassRepo; import net.md_5.specialsource.repo.ClassRepo;
import net.md_5.specialsource.repo.RuntimeRepo;
import org.objectweb.asm.Handle; import org.objectweb.asm.Handle;
import org.objectweb.asm.MethodVisitor; import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes; import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Type; import org.objectweb.asm.Type;
import org.objectweb.asm.commons.MethodRemapper; import org.objectweb.asm.commons.MethodRemapper;
import org.objectweb.asm.tree.ClassNode;
import org.objectweb.asm.tree.FieldNode;
import org.objectweb.asm.tree.MethodNode;
public class UnsortedRemappingMethodAdapter extends MethodRemapper { public class UnsortedRemappingMethodAdapter extends MethodRemapper {
@ -52,67 +48,31 @@ public class UnsortedRemappingMethodAdapter extends MethodRemapper {
"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;[Ljava/lang/Object;)Ljava/lang/invoke/CallSite;", false) "(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;[Ljava/lang/Object;)Ljava/lang/invoke/CallSite;", false)
); );
protected final CustomRemapper remapper; protected final RepoRemapper remapper;
private final ClassRepo classRepo;
public UnsortedRemappingMethodAdapter(final MethodVisitor mv, final CustomRemapper remapper, ClassRepo classRepo) { public UnsortedRemappingMethodAdapter(final MethodVisitor mv, final CustomRemapper remapper, ClassRepo classRepo) {
super(mv, remapper); super(mv, remapper);
Preconditions.checkArgument(mv != null, "mv"); Preconditions.checkArgument(mv != null, "mv");
this.remapper = remapper; this.remapper = new RepoRemapper(remapper, classRepo);
this.classRepo = classRepo;
} }
@Override @Override
public void visitFieldInsn(int opcode, String owner, String name, public void visitFieldInsn(int opcode, String owner, String name,
String desc) { String desc) {
mv.visitFieldInsn(opcode, remapper.mapType(owner), mv.visitFieldInsn(opcode, remapper.mapType(owner),
remapper.mapFieldName(owner, name, desc, findAccess(NodeType.FIELD, owner, name, desc)), remapper.mapFieldName(owner, name, desc),
remapper.mapDesc(desc)); remapper.mapDesc(desc));
} }
private int findAccess(NodeType type, String owner, String name, String desc, ClassRepo repo) { @Deprecated
int access = -1;
if (repo != null) {
ClassNode clazz = classRepo.findClass(owner);
if (clazz != null) {
switch (type) {
case FIELD:
for (FieldNode f : clazz.fields) {
if (f.name.equals(name) && f.desc.equals(desc)) {
access = f.access;
break;
}
}
break;
case METHOD:
for (MethodNode m : classRepo.findClass(owner).methods) {
if (m.name.equals(name) && m.desc.equals(desc)) {
access = m.access;
break;
}
}
break;
}
}
}
return access;
}
public int findAccess(NodeType type, String owner, String name, String desc) { public int findAccess(NodeType type, String owner, String name, String desc) {
int access; return remapper.findAccess(type, owner, name, desc);
access = findAccess(type, owner, name, desc, classRepo);
if (access == -1) {
access = findAccess(type, owner, name, desc, RuntimeRepo.getInstance());
}
return access;
} }
@Override @Override
public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) { public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
mv.visitMethodInsn(opcode, remapper.mapType(owner), mv.visitMethodInsn(opcode, remapper.mapType(owner),
remapper.mapMethodName(owner, name, desc, findAccess(NodeType.METHOD, owner, name, desc)), remapper.mapMethodName(owner, name, desc),
remapper.mapMethodDesc(desc), itf); remapper.mapMethodDesc(desc), itf);
} }
@ -125,7 +85,7 @@ public class UnsortedRemappingMethodAdapter extends MethodRemapper {
String owner = Type.getReturnType(desc).getInternalName(); String owner = Type.getReturnType(desc).getInternalName();
String odesc = ((Type) bsmArgs[0]).getDescriptor(); // First constant argument is "samMethodType - Signature and return type of method to be implemented by the function object." String odesc = ((Type) bsmArgs[0]).getDescriptor(); // First constant argument is "samMethodType - Signature and return type of method to be implemented by the function object."
// index 2 is the signature, but with generic types. Should we use that instead? // index 2 is the signature, but with generic types. Should we use that instead?
name = remapper.mapMethodName(owner, name, odesc, findAccess(NodeType.METHOD, owner, name, odesc)); name = remapper.mapMethodName(owner, name, odesc );
} else { } else {
name = remapper.mapInvokeDynamicMethodName(name, desc); name = remapper.mapInvokeDynamicMethodName(name, desc);
} }