fix: eliminated redundant code, fixed bug with arrays in descriptors being sometimes ignored

src/main/java/ftbsc/lll/processor/tools/ASTUtils.java

@@ -8,11 +8,11 @@ import ftbsc.lll.processor.annotations.Target;
 import ftbsc.lll.processor.tools.containers.ClassContainer;
 import ftbsc.lll.processor.tools.obfuscation.ObfuscationMapper;
 import ftbsc.lll.proxies.ProxyType;
-import ftbsc.lll.tools.DescriptorBuilder;
 
 import javax.annotation.processing.ProcessingEnvironment;
 import javax.lang.model.element.*;
 import javax.lang.model.type.*;
+import javax.tools.Diagnostic;
 import java.lang.annotation.Annotation;
 import java.util.Collection;
 import java.util.List;
@@ -114,15 +114,15 @@ public class ASTUtils {
 	}
 
 	/**
-	 * Gets the internal name from an {@link Element}.
-	 * @param elem the {@link Element} in question
+	 * Gets the internal name from an {@link TypeMirror}.
+	 * @param type the {@link TypeMirror} in question
 	 * @param env the {@link ProcessingEnvironment} to perform the operation in
 	 * @return the internal name at compile time, or null if it wasn't a qualifiable
 	 * @since 0.5.1
 	 */
-	public static String internalNameFromElement(Element elem, ProcessingEnvironment env) {
+	public static String internalNameFromType(TypeMirror type, ProcessingEnvironment env) {
 		//needed to actually turn elem into a TypeVariable, find it ignoring generics
-		elem = env.getElementUtils().getTypeElement(elem.asType().toString().split("<")[0]);
+		Element elem = env.getElementUtils().getTypeElement(type.toString().split("<")[0]);
 		StringBuilder fqnBuilder = new StringBuilder();
 		while(elem.getEnclosingElement() != null && elem.getEnclosingElement().getKind() != ElementKind.PACKAGE) {
 			fqnBuilder
@@ -130,33 +130,10 @@ public class ASTUtils {
 				.insert(0, "$");
 			elem = elem.getEnclosingElement();
 		}
-		return fqnBuilder.insert(0, elem.asType().toString().split("<")[0]).toString();
-	}
-
-	/**
-	 * Gets the descriptor from an {@link Element}.
-	 * In particular, it will ensure to conver the internal class name to the
-	 * one used at compile time
-	 * @param elem the {@link Element} in question
-	 * @param env the {@link ProcessingEnvironment} to perform the operation in
-	 * @return the descriptor
-	 * @since 0.5.1
-	 */
-	public static String descriptorFromElement(Element elem, ProcessingEnvironment env) {
-		if(elem instanceof ExecutableElement)
-			return descriptorFromExecutableElement((ExecutableElement) elem, env);
-
-		TypeMirror tk = elem.asType();
-		int arrayLevel = 0;
-		while(tk.getKind() == TypeKind.ARRAY) {
-			tk = ((ArrayType) tk).getComponentType();
-			arrayLevel++;
-		}
-
-		if(tk.getKind() != TypeKind.DECLARED)
-			return descriptorFromType(elem.asType(), env);
-
-		return DescriptorBuilder.nameToDescriptor(internalNameFromElement(elem, env), arrayLevel);
+		return fqnBuilder
+			.insert(0, elem.asType().toString().split("<")[0])
+			.toString()
+			.replace('.', '/');
 	}
 
 	/**
@@ -177,9 +154,11 @@ public class ASTUtils {
 			t = ((TypeVariable) t).getUpperBound();
 
 		if(t.getKind() == TypeKind.DECLARED)
-			return descriptorFromElement(env.getTypeUtils().asElement(t), env);
-
-
+			desc
+				.append("L")
+				.append(internalNameFromType(t, env))
+				.append(";");
+		else {
 			switch(t.getKind()) {
 				case BOOLEAN:
 					desc.append("Z");
@@ -209,6 +188,7 @@ public class ASTUtils {
 					desc.append("V");
 					break;
 			}
+		}
 
 		return desc.toString();
 	}
@@ -299,7 +279,7 @@ public class ASTUtils {
 			if(field) {
 				//fields can verify the signature for extra safety
 				//but there can only be 1 field with a given name
-				if(!descriptorFromElement(candidates.get(0), env).equals(descr))
+				if(!descriptorFromType(candidates.get(0).asType(), env).equals(descr))
 					throw new TargetNotFoundException("field", String.format("%s with descriptor %s", name, descr), parent.fqn);
 			} else {
 				candidates = candidates.stream()

src/main/java/ftbsc/lll/processor/tools/containers/ClassContainer.java

@@ -53,7 +53,9 @@ public class ClassContainer {
 		if(elem == null)
 			throw new TargetNotFoundException("class", fqn);
 
-		StringBuilder fqnBuilder = new StringBuilder(internalNameFromElement(elem, env));
+		StringBuilder fqnBuilder = new StringBuilder(
+			internalNameFromType(elem.asType(), env).replace('/', '.')
+		);
 
 		if(innerNames != null) {
 			for(String inner : innerNames) {

src/main/java/ftbsc/lll/processor/tools/containers/FieldContainer.java

@@ -75,7 +75,7 @@ public class FieldContainer {
 		} else {
 			this.elem = (VariableElement) findMember(parent, name, descriptor, descriptor != null, true, env);
 			this.name = this.elem.getSimpleName().toString();
-			this.descriptor = descriptorFromElement(this.elem, env);
+			this.descriptor = descriptorFromType(this.elem.asType(), env);
 		}
 		this.descriptorObf = mapper == null ? this.descriptor : mapper.obfuscateType(Type.getType(this.descriptor)).getDescriptor();
 		this.nameObf = findMemberName(parent.fqn, this.name, null, mapper);