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feat: specifying ClassNode is now optional

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zaaarf 2023-04-12 16:56:26 +02:00
parent 2c2b24e5b4
commit 5973cf6d95
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GPG key ID: 82240E075E31FA4C
3 changed files with 96 additions and 60 deletions
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66
src/main/java/ftbsc/lll/processor/LilleroProcessor.java
View file

@ -7,6 +7,7 @@ import ftbsc.lll.exceptions.InvalidResourceException;
import ftbsc.lll.exceptions.OrphanElementException;
import ftbsc.lll.processor.annotations.*;
import ftbsc.lll.processor.tools.containers.ClassContainer;
import ftbsc.lll.processor.tools.containers.InjectorInfo;
import ftbsc.lll.processor.tools.containers.MethodContainer;
import ftbsc.lll.processor.tools.obfuscation.ObfuscationMapper;
import ftbsc.lll.proxies.ProxyType;
@ -172,9 +173,12 @@ public class LilleroProcessor extends AbstractProcessor {
List<? extends TypeMirror> params = ((ExecutableType) e.asType()).getParameterTypes();
return e.getAnnotation(Injector.class) != null
&& e.getAnnotation(Target.class) == null
&& params.size() == 2
&& (
(params.size() == 2
&& this.processingEnv.getTypeUtils().isSameType(params.get(0), classNodeType)
&& this.processingEnv.getTypeUtils().isSameType(params.get(1), methodNodeType);
&& this.processingEnv.getTypeUtils().isSameType(params.get(1), methodNodeType)
) || (params.size() == 1 && this.processingEnv.getTypeUtils().isSameType(params.get(0), methodNodeType))
);
})) return true;
else {
this.processingEnv.getMessager().printMessage(Diagnostic.Kind.WARNING,
@ -301,7 +305,7 @@ public class LilleroProcessor extends AbstractProcessor {
matchedInjectors.add(injector);
toGenerate.put(
String.format("%sInjector%d", cl.getSimpleName(), iterationNumber),
new InjectorInfo(injector, tg, targetAnn)
new InjectorInfo(injector, tg, targetAnn, this.processingEnv, this.mapper)
);
iterationNumber++; //increment is only used by injectors
} else {
@ -331,21 +335,6 @@ public class LilleroProcessor extends AbstractProcessor {
//iterate over the map and generate the classes
for(String injName : toGenerate.keySet()) {
MethodSpec inject = MethodSpec.methodBuilder("inject")
.addModifiers(Modifier.PUBLIC)
.returns(void.class)
.addAnnotation(Override.class)
.addParameter(ParameterSpec.builder(
TypeName.get(processingEnv
.getElementUtils()
.getTypeElement("org.objectweb.asm.tree.ClassNode").asType()), "clazz").build())
.addParameter(ParameterSpec.builder(
TypeName.get(processingEnv
.getElementUtils()
.getTypeElement("org.objectweb.asm.tree.MethodNode").asType()), "main").build())
.addStatement(String.format("super.%s(clazz, main)", toGenerate.get(injName).injector.getSimpleName()), TypeName.get(cl.asType()))
.build();
MethodContainer target = toGenerate.get(injName).target;
TypeSpec injectorClass = TypeSpec.classBuilder(injName)
.addModifiers(Modifier.PUBLIC)
@ -358,7 +347,7 @@ public class LilleroProcessor extends AbstractProcessor {
.addMethod(buildStringReturnMethod("methodName", obfuscateInjectorMetadata ? target.nameObf : target.name))
.addMethod(buildStringReturnMethod("methodDesc", obfuscateInjectorMetadata ? target.descriptorObf : target.descriptor))
.addMethods(generateDummies(targets))
.addMethod(inject)
.addMethod(generateInjector(toGenerate.get(injName), this.processingEnv))
.build();
JavaFile javaFile = JavaFile.builder(packageName, injectorClass).build();
@ -393,43 +382,4 @@ public class LilleroProcessor extends AbstractProcessor {
throw new RuntimeException(e);
}
}
/**
* Container for information about a class that is to be generated.
* Only used internally.
*/
private class InjectorInfo {
/**
* The {@link ExecutableElement} corresponding to the injector method.
*/
public final ExecutableElement injector;
/**
* The {@link ExecutableElement} corresponding to the target method stub.
*/
public final ExecutableElement targetStub;
/**
* The reason for the injection.
*/
public final String reason;
/**
* The {@link MethodContainer} corresponding to the target method.
*/
private final MethodContainer target;
/**
* Public constructor.
* @param injector the injector {@link ExecutableElement}
* @param targetStub the target {@link ExecutableElement}
* @param targetAnn the relevant {@link Target} annotation
*/
public InjectorInfo(ExecutableElement injector, ExecutableElement targetStub, Target targetAnn) {
this.injector = injector;
this.targetStub = targetStub;
this.reason = injector.getAnnotation(Injector.class).reason();
this.target = MethodContainer.from(targetStub, targetAnn, null, processingEnv, mapper);
}
}
}

40
src/main/java/ftbsc/lll/processor/tools/JavaPoetUtils.java
View file

@ -5,6 +5,7 @@ import ftbsc.lll.processor.annotations.Find;
import ftbsc.lll.processor.annotations.Target;
import ftbsc.lll.processor.tools.containers.ClassContainer;
import ftbsc.lll.processor.tools.containers.FieldContainer;
import ftbsc.lll.processor.tools.containers.InjectorInfo;
import ftbsc.lll.processor.tools.containers.MethodContainer;
import ftbsc.lll.processor.tools.obfuscation.ObfuscationMapper;
import ftbsc.lll.proxies.ProxyType;
@ -122,7 +123,7 @@ public class JavaPoetUtils {
/**
* Generates a {@link HashSet} of dummy overrides given a {@link Collection} stubs.
* @param dummies the stubs
* @return the generated {@link HashSet}
* @return a {@link HashSet} containing the generated {@link MethodSpec}s
* @since 0.5.0
*/
public static HashSet<MethodSpec> generateDummies(Collection<ExecutableElement> dummies) {
@ -135,4 +136,41 @@ public class JavaPoetUtils {
);
return specs;
}
/**
* Generates the wrapper around a certain injector.
* @param inj the {@link InjectorInfo} carrying the information about the target injector
* @param env the {@link ProcessingEnvironment} to perform the operation in
* @return the generated {@link MethodSpec} for the injector
* @since 0.6.0
*/
public static MethodSpec generateInjector(InjectorInfo inj, ProcessingEnvironment env) {
MethodSpec.Builder injectBuilder = MethodSpec.methodBuilder("inject")
.addModifiers(Modifier.PUBLIC)
.returns(void.class)
.addAnnotation(Override.class);
int argumentCount = inj.injector.getParameters().size();
if(argumentCount == 2) {
injectBuilder
.addParameter(ParameterSpec.builder(
TypeName.get(env
.getElementUtils()
.getTypeElement("org.objectweb.asm.tree.ClassNode").asType()), "clazz")
.build());
}
injectBuilder
.addParameter(ParameterSpec.builder(
TypeName.get(env
.getElementUtils()
.getTypeElement("org.objectweb.asm.tree.MethodNode").asType()), "main")
.build());
if(argumentCount == 2) injectBuilder.addStatement("super.$L(clazz, main)", inj.injector.getSimpleName());
else injectBuilder.addStatement("super.$L(main)", inj.injector.getSimpleName());
return injectBuilder.build();
}
}

48
src/main/java/ftbsc/lll/processor/tools/containers/InjectorInfo.java Normal file
View file

@ -0,0 +1,48 @@
package ftbsc.lll.processor.tools.containers;
import ftbsc.lll.processor.annotations.Injector;
import ftbsc.lll.processor.annotations.Target;
import ftbsc.lll.processor.tools.obfuscation.ObfuscationMapper;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.ExecutableElement;
/**
* Container for information about a class that is to be generated.
*/
public class InjectorInfo {
/**
* The {@link ExecutableElement} corresponding to the injector method.
*/
public final ExecutableElement injector;
/**
* The {@link ExecutableElement} corresponding to the target method stub.
*/
public final ExecutableElement targetStub;
/**
* The reason for the injection.
*/
public final String reason;
/**
* The {@link MethodContainer} corresponding to the target method.
*/
public final MethodContainer target;
/**
* Public constructor.
* @param injector the injector {@link ExecutableElement}
* @param targetStub the target {@link ExecutableElement}
* @param targetAnn the relevant {@link Target} annotation
* @param env the {@link ProcessingEnvironment} to be used to locate the class
* @param mapper the {@link ObfuscationMapper} to be used, may be null
*/
public InjectorInfo(ExecutableElement injector, ExecutableElement targetStub, Target targetAnn, ProcessingEnvironment env, ObfuscationMapper mapper) {
this.injector = injector;
this.targetStub = targetStub;
this.reason = injector.getAnnotation(Injector.class).reason();
this.target = MethodContainer.from(targetStub, targetAnn, null, env, mapper);
}
}