Fixed crashes in fill out class action

Author: astrelsky

src/main/java/cppclassanalyzer/cmd/FillOutClassBackgroundCmd.java

@@ -186,12 +186,18 @@ private void setMember(ClassTypeInfoDB member, int offset) {
 			}
 			comp = struct.getComponent(offset);
 		}
-		if (comp.getFieldName().startsWith("super_") && offset == 0) {
-			return;
+		if (comp != null && comp.getFieldName() != null) {
+			if (comp.getFieldName().startsWith("super_") && offset == 0) {
+				return;
+			}
 		}
 		DataType memberDt = member.getClassDataType();
 		String name = createMemberName(memberDt, struct, offset);
-		struct.replaceAtOffset(offset, memberDt, memberDt.getLength(), name, null);
+		if (offset > struct.getLength()) {
+			struct.insertAtOffset(offset, memberDt, memberDt.getLength());
+		} else {
+			struct.replaceAtOffset(offset, memberDt, memberDt.getLength(), name, null);
+		}
 	}
 
 	private static String createMemberName(DataType dt, Structure struct, int offset) {

src/main/java/cppclassanalyzer/data/manager/ClassTypeInfoManagerDB.java

@@ -464,12 +464,12 @@ public ClassTypeInfoDB getType(Function fun) {
 		if (fun.getParentNamespace().isGlobal()) {
 			return null;
 		}
-		if (!(fun.getParentNamespace() instanceof GhidraClass)) {
-			Msg.info(this, fun.getParentNamespace().getName(true)+" is not a class");
-			return null;
-		}
 		GenericCallingConvention cc = fun.getSignature().getGenericCallingConvention();
 		if (cc.equals(GenericCallingConvention.thiscall)) {
+			if (!(fun.getParentNamespace() instanceof GhidraClass)) {
+				Msg.info(this, fun.getParentNamespace().getName(true)+" is not a class");
+				return null;
+			}
 			return getType((GhidraClass) fun.getParentNamespace());
 		}
 		return null;