Applied llvm-else-after-return clang-tidy fixes

src/class_diagram/visitor/translation_unit_visitor.cc

@@ -315,10 +315,8 @@ bool translation_unit_visitor::VisitClassTemplateDecl(
         forward_declarations_.emplace(id, std::move(c_ptr));
         return true;
     }
-    else {
-        process_class_declaration(*cls->getTemplatedDecl(), *c_ptr);
-        forward_declarations_.erase(id);
-    }
+    process_class_declaration(*cls->getTemplatedDecl(), *c_ptr);
+    forward_declarations_.erase(id);
 
     if (diagram_.should_include(*c_ptr)) {
         const auto name = c_ptr->full_name();
@@ -387,8 +385,7 @@ bool translation_unit_visitor::VisitCXXRecordDecl(clang::CXXRecordDecl *cls)
         forward_declarations_.emplace(id, std::move(c_ptr));
         return true;
     }
-    else
-        forward_declarations_.erase(id);
+    forward_declarations_.erase(id);
 
     if (diagram_.should_include(class_model)) {
         LOG_DBG("Adding class {} with id {}", class_model.full_name(false),
@@ -2152,8 +2149,7 @@ bool translation_unit_visitor::simplify_system_template(
         ct.clear_params();
         return true;
     }
-    else
-        return false;
+    return false;
 }
 
 void translation_unit_visitor::set_ast_local_id(

src/common/clang_utils.cc

@@ -286,7 +286,7 @@ template <> id_t to_id(const clang::TemplateArgument &template_argument)
             return to_id(*template_argument.getAsType()
                               ->getAs<clang::EnumType>()
                               ->getAsTagDecl());
-        else if (template_argument.getAsType()->getAs<clang::RecordType>())
+        if (template_argument.getAsType()->getAs<clang::RecordType>())
             return to_id(*template_argument.getAsType()
                               ->getAs<clang::RecordType>()
                               ->getAsRecordDecl());

src/common/model/diagram_filter.cc

@@ -194,12 +194,8 @@ tvl::value_t namespace_filter::match(
                 return result;
             });
     }
-    else {
-        return tvl::any_of(
-            namespaces_.begin(), namespaces_.end(), [&e](const auto &nsit) {
-                return e.get_namespace().starts_with(nsit);
-            });
-    }
+    return tvl::any_of(namespaces_.begin(), namespaces_.end(),
+        [&e](const auto &nsit) { return e.get_namespace().starts_with(nsit); });
 }
 
 element_filter::element_filter(filter_t type, std::vector<std::string> elements)

src/common/model/nested_trait.h

@@ -70,11 +70,9 @@ public:
         if (parent && dynamic_cast<nested_trait<T, Path> *>(&parent.value()))
             return dynamic_cast<nested_trait<T, Path> &>(parent.value())
                 .template add_element<V>(std::move(p));
-        else {
-            spdlog::info("No parent element found at: {}", path.to_string());
-            throw std::runtime_error(
-                "No parent element found for " + path.to_string());
-        }
+        spdlog::info("No parent element found at: {}", path.to_string());
+        throw std::runtime_error(
+            "No parent element found for " + path.to_string());
     }
 
     template <typename V = T> auto get_element(const Path &path) const

src/common/model/tvl.h

@@ -63,9 +63,7 @@ inline value_t any_of(InputIterator first, InputIterator last, Predicate pred)
                 res = true;
                 break;
             }
-            else {
-                res = false;
-            }
+            res = false;
         }
     }
 

src/config/config.cc

@@ -308,7 +308,7 @@ std::shared_ptr<clanguml::config::diagram> parse_diagram_config(const Node &d)
     if (diagram_type == "class") {
         return std::make_shared<class_diagram>(d.as<class_diagram>());
     }
-    else if (diagram_type == "sequence") {
+    if (diagram_type == "sequence") {
         return std::make_shared<sequence_diagram>(d.as<sequence_diagram>());
     }
     else if (diagram_type == "package") {

src/decorators/decorators.cc

@@ -29,7 +29,7 @@ std::shared_ptr<decorator> decorator::from_string(std::string_view c)
     if (c.find(note::label) == 0) {
         return note::from_string(c);
     }
-    else if (c.find(skip_relationship::label) == 0) {
+    if (c.find(skip_relationship::label) == 0) {
         return skip_relationship::from_string(c);
     }
     else if (c.find(skip::label) == 0) {

src/sequence_diagram/visitor/translation_unit_visitor.cc

@@ -116,9 +116,7 @@ bool translation_unit_visitor::VisitCXXRecordDecl(clang::CXXRecordDecl *cls)
         forward_declarations_.emplace(id, std::move(c_ptr));
         return true;
     }
-    else {
-        forward_declarations_.erase(id);
-    }
+    forward_declarations_.erase(id);
 
     if (diagram().should_include(class_model)) {
         LOG_DBG("Adding class {} with id {}", class_model.full_name(false),
@@ -169,9 +167,7 @@ bool translation_unit_visitor::VisitClassTemplateDecl(
         forward_declarations_.emplace(id, std::move(c_ptr));
         return true;
     }
-    else {
-        forward_declarations_.erase(id);
-    }
+    forward_declarations_.erase(id);
 
     if (diagram().should_include(*c_ptr)) {
         LOG_DBG("Adding class template {} with id {}", cls_full_name, id);
@@ -216,9 +212,7 @@ bool translation_unit_visitor::VisitClassTemplateSpecializationDecl(
             id, std::move(template_specialization_ptr));
         return true;
     }
-    else {
-        forward_declarations_.erase(id);
-    }
+    forward_declarations_.erase(id);
 
     if (diagram().should_include(*template_specialization_ptr)) {
         LOG_DBG("Adding class template specialization {} with id {}",
@@ -2005,8 +1999,7 @@ bool translation_unit_visitor::simplify_system_template(
         ct.clear_params();
         return true;
     }
-    else
-        return false;
+    return false;
 }
 
 std::string translation_unit_visitor::simplify_system_template(