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fix: fixed mappings bug

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zaaarf 2023-03-15 15:10:16 +01:00
parent 2463dd3e76
commit 92a4273b10
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3 changed files with 91 additions and 26 deletions
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35
src/main/java/ftbsc/lll/processor/LilleroProcessor.java
View file

@ -15,7 +15,6 @@ import javax.annotation.processing.*;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.*;
import javax.lang.model.type.ExecutableType;
import javax.lang.model.type.MirroredTypesException;
import javax.lang.model.type.TypeMirror;
import javax.tools.Diagnostic;
import javax.tools.FileObject;
@ -176,8 +175,8 @@ public class LilleroProcessor extends AbstractProcessor {
private static String findClassName(Patch patchAnn, FindMethod methodAnn, ObfuscationMapper mapper) {
String fullyQualifiedName =
methodAnn == null || methodAnn.parent() == Object.class
? getClassFullyQualifiedName(patchAnn, p -> patchAnn.value())
: getClassFullyQualifiedName(methodAnn, m -> methodAnn.parent());
? getClassFullyQualifiedName(patchAnn, Patch::value)
: getClassFullyQualifiedName(methodAnn, FindMethod::parent);
return findClassName(fullyQualifiedName, mapper);
}
@ -200,8 +199,8 @@ public class LilleroProcessor extends AbstractProcessor {
* @return the internal class name
* @since 0.3.0
*/
private static String findMemberName(String parentFQN, String memberName, ObfuscationMapper mapper) {
return mapper == null ? memberName : mapper.obfuscateMember(parentFQN, memberName);
private static String findMemberName(String parentFQN, String memberName, String methodDescriptor, ObfuscationMapper mapper) {
return mapper == null ? memberName : mapper.obfuscateMember(parentFQN, memberName, methodDescriptor);
}
/**
@ -213,14 +212,18 @@ public class LilleroProcessor extends AbstractProcessor {
* @return the internal class name
* @since 0.3.0
*/
private static String findMethodName(String parentFQN, FindMethod methodAnn, ExecutableElement stub, ObfuscationMapper mapper) {
private String findMethodName(String parentFQN, FindMethod methodAnn, ExecutableElement stub, ObfuscationMapper mapper) {
String methodName = methodAnn == null ? stub.getSimpleName().toString() : methodAnn.name();
String methodDescriptor;
if(methodAnn == null)
methodDescriptor = descriptorFromExecutableElement(stub);
else methodDescriptor = methodDescriptorFromParams(methodAnn, FindMethod::params, processingEnv.getElementUtils());
try {
methodName = findMemberName(parentFQN, methodName, mapper);
methodName = findMemberName(parentFQN, methodName, methodDescriptor, mapper);
} catch(MappingNotFoundException e) {
//not found: try again with the name of the annotated method
if(methodAnn == null) {
methodName = findMemberName(parentFQN, stub.getSimpleName().toString(), mapper);
methodName = findMemberName(parentFQN, stub.getSimpleName().toString(), methodDescriptor, mapper);
} else throw e;
}
return methodName;
@ -235,7 +238,7 @@ public class LilleroProcessor extends AbstractProcessor {
* @return the internal class name
* @since 0.3.0
*/
private static String findMethodName(Patch patchAnn, FindMethod methodAnn, ExecutableElement stub, ObfuscationMapper mapper) {
private String findMethodName(Patch patchAnn, FindMethod methodAnn, ExecutableElement stub, ObfuscationMapper mapper) {
return findMethodName(findClassName(patchAnn, methodAnn, mapper), methodAnn, stub, mapper);
}
@ -325,8 +328,8 @@ public class LilleroProcessor extends AbstractProcessor {
FindField fieldAnn = stub.getAnnotation(FindField.class);
String parentName;
if(fieldAnn.parent().equals(Object.class))
parentName = getClassFullyQualifiedName(patchAnn, p -> patchAnn.value());
else parentName = getClassFullyQualifiedName(fieldAnn, f -> fieldAnn.parent());
parentName = getClassFullyQualifiedName(patchAnn, Patch::value);
else parentName = getClassFullyQualifiedName(fieldAnn, FindField::parent);
parentName = findClassName(parentName, mapper);
String name = fieldAnn.name().equals("")
? stub.getSimpleName().toString()
@ -408,15 +411,7 @@ public class LilleroProcessor extends AbstractProcessor {
if(injectionCandidates.size() == 1)
injectionTarget = injectionCandidates.get(0);
List<TypeMirror> params = new ArrayList<>();
try {
params.addAll(Arrays.stream(injectorAnn.params())
.map(Class::getCanonicalName)
.map(fqn -> processingEnv.getElementUtils().getTypeElement(fqn).asType())
.collect(Collectors.toList()));
} catch(MirroredTypesException e) {
params.addAll(e.getTypeMirrors());
}
List<TypeMirror> params = classArrayFromAnnotation(injectorAnn, Injector::params, processingEnv.getElementUtils());
if(params.size() != 0) {
StringBuilder descr = new StringBuilder("(");

47
src/main/java/ftbsc/lll/processor/tools/ASTUtils.java
View file

@ -6,12 +6,17 @@ import com.squareup.javapoet.MethodSpec;
import com.squareup.javapoet.TypeName;
import ftbsc.lll.tools.DescriptorBuilder;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.Modifier;
import javax.lang.model.element.TypeElement;
import javax.lang.model.type.MirroredTypeException;
import javax.lang.model.type.MirroredTypesException;
import javax.lang.model.type.TypeMirror;
import javax.lang.model.util.Elements;
import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;
@ -135,19 +140,53 @@ public class ASTUtils {
}
/**
* Safely converts a {@link Class} to its fully qualified name. See
* <a href="https://area-51.blog/2009/02/13/getting-class-values-from-annotations-in-an-annotationprocessor">this blogpost</a>
* for more information.
* Safely extracts a {@link Class} from an annotation and gets its fully qualified name.
* @param ann the annotation containing the class
* @param fun the annotation function returning the class
* @return the fully qualified name of the given class
* @since 0.3.0
*/
public static <T extends Annotation> String getClassFullyQualifiedName(T ann, Function<Annotation, Class<?>> fun) {
public static <T extends Annotation> String getClassFullyQualifiedName(T ann, Function<T, Class<?>> fun) {
try {
return fun.apply(ann).getCanonicalName();
} catch(MirroredTypeException e) {
return e.getTypeMirror().toString();
}
}
/**
* Safely extracts a {@link Class} array from an annotation.
* @param ann the annotation containing the class
* @param fun the annotation function returning the class
* @param elementUtils the element utils corresponding to the {@link ProcessingEnvironment}
* @return a list of {@link TypeMirror}s representing the classes
* @since 0.3.0
*/
public static <T extends Annotation> List<TypeMirror> classArrayFromAnnotation(T ann, Function<T, Class<?>[]> fun, Elements elementUtils) {
List<TypeMirror> params = new ArrayList<>();
try {
params.addAll(Arrays.stream(fun.apply(ann))
.map(Class::getCanonicalName)
.map(fqn -> elementUtils.getTypeElement(fqn).asType())
.collect(Collectors.toList()));
} catch(MirroredTypesException e) {
params.addAll(e.getTypeMirrors());
}
return params;
}
/**
* Builds a (partial, not including the return type) method descriptor from its parameters
* @param ann the annotation containing the class
* @param fun the annotation function returning the class
* @return the method descriptor
*/
public static <T extends Annotation> String methodDescriptorFromParams(T ann, Function<T, Class<?>[]> fun, Elements elementUtils) {
List<TypeMirror> mirrors = classArrayFromAnnotation(ann, fun, elementUtils);
StringBuilder sb = new StringBuilder("(");
for(TypeMirror t : mirrors)
sb.append(descriptorFromType(t));
sb.append(")");
return sb.toString();
}
}

35
src/main/java/ftbsc/lll/processor/tools/obfuscation/ObfuscationMapper.java
View file

@ -1,10 +1,13 @@
package ftbsc.lll.processor.tools.obfuscation;
import ftbsc.lll.exceptions.AmbiguousDefinitionException;
import ftbsc.lll.exceptions.MappingNotFoundException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
@ -76,14 +79,15 @@ public class ObfuscationMapper {
* with a space, because that's how it is in .tsrg files.
* @param parentName the unobfuscated internal name of the parent class
* @param memberName the field name or method signature
* @param methodDescriptor the optional descriptor of the member, may be null or partial
* @return the obfuscated name of the given member
* @throws MappingNotFoundException if no mapping is found
*/
public String obfuscateMember(String parentName, String memberName) {
public String obfuscateMember(String parentName, String memberName, String methodDescriptor) {
ObfuscationData data = mapper.get(parentName.replace('.', '/'));
if(data == null)
throw new MappingNotFoundException(parentName + "::" + memberName);
String member = data.members.get(memberName);
String member = data.get(memberName, methodDescriptor);
if(member == null)
throw new MappingNotFoundException(parentName + "::" + memberName);
return member;
@ -166,5 +170,32 @@ public class ObfuscationMapper {
else if (split.length == 3) //method
members.put(split[0] + " " + split[1], split[2]);
}
/**
* Gets an obfuscated member given the method name and a method descriptor,
* which may be partial (i.e. not include return type) or null if the member
* is not a method.
* @param memberName member name
* @param methodDescriptor the method descriptor, or null if it's not a method
* @return the requested obfuscated name, or null if nothing was found
* @throws AmbiguousDefinitionException if not enough data was given to uniquely identify a mapping
*/
public String get(String memberName, String methodDescriptor) {
if(methodDescriptor == null)
return members.get(memberName);
List<String> candidates = members.values().stream().filter(m -> m.startsWith(memberName)).collect(Collectors.toList());
if(candidates.size() == 1)
return members.get(candidates.get(0));
String signature = memberName + " " + methodDescriptor;
candidates = candidates.stream().filter(m -> m.startsWith(signature)).collect(Collectors.toList());
switch(candidates.size()) {
case 0:
return null;
case 1:
return members.get(candidates.get(0));
default:
throw new AmbiguousDefinitionException("Mapper could not uniquely identify method " + unobf + "::" + memberName);
}
}
}
}