diff --git a/src/language/node_processor/AffectationProcessor.hpp b/src/language/node_processor/AffectationProcessor.hpp
index fc469edae5cd4a36fa87cfdd663cf3e43d3c8c10..fbd36c008be773258754c5c0ba93443ea5a4009a 100644
--- a/src/language/node_processor/AffectationProcessor.hpp
+++ b/src/language/node_processor/AffectationProcessor.hpp
@@ -65,7 +65,7 @@ class AffectationExecutor final : public IAffectationExecutor
  private:
   ValueT& m_lhs;
 
-  static inline const bool _is_defined{[] {
+  static inline const bool m_is_defined{[] {
     if constexpr (std::is_same_v<std::decay_t<ValueT>, bool>) {
       if constexpr (not std::is_same_v<OperatorT, language::eq_op>) {
         return false;
@@ -78,7 +78,7 @@ class AffectationExecutor final : public IAffectationExecutor
   AffectationExecutor(ASTNode& node, ValueT& lhs) : m_lhs(lhs)
   {
     // LCOV_EXCL_START
-    if constexpr (not _is_defined) {
+    if constexpr (not m_is_defined) {
       throw parse_error("unexpected error: invalid operands to affectation expression", std::vector{node.begin()});
     }
     // LCOV_EXCL_STOP
@@ -87,7 +87,7 @@ class AffectationExecutor final : public IAffectationExecutor
   PUGS_INLINE void
   affect(ExecutionPolicy&, DataVariant&& rhs)
   {
-    if constexpr (_is_defined) {
+    if constexpr (m_is_defined) {
       if constexpr (not std::is_same_v<DataT, ZeroType>) {
         if constexpr (std::is_same_v<ValueT, std::string>) {
           if constexpr (std::is_same_v<OperatorT, language::eq_op>) {
@@ -138,7 +138,7 @@ class ComponentAffectationExecutor final : public IAffectationExecutor
   ArrayT& m_lhs_array;
   ASTNode& m_index_expression;
 
-  static inline const bool _is_defined{[] {
+  static inline const bool m_is_defined{[] {
     if constexpr (not std::is_same_v<typename ArrayT::data_type, ValueT>) {
       return false;
     } else if constexpr (std::is_same_v<std::decay_t<ValueT>, bool>) {
@@ -154,7 +154,7 @@ class ComponentAffectationExecutor final : public IAffectationExecutor
     : m_lhs_array{lhs_array}, m_index_expression{index_expression}
   {
     // LCOV_EXCL_START
-    if constexpr (not _is_defined) {
+    if constexpr (not m_is_defined) {
       throw parse_error("unexpected error: invalid operands to affectation expression", std::vector{node.begin()});
     }
     // LCOV_EXCL_STOP
@@ -163,7 +163,7 @@ class ComponentAffectationExecutor final : public IAffectationExecutor
   PUGS_INLINE void
   affect(ExecutionPolicy& exec_policy, DataVariant&& rhs)
   {
-    if constexpr (_is_defined) {
+    if constexpr (m_is_defined) {
       const int64_t index_value = [&](DataVariant&& value_variant) -> int64_t {
         int64_t index_value = 0;
         std::visit(
diff --git a/src/language/node_processor/BinaryExpressionProcessor.hpp b/src/language/node_processor/BinaryExpressionProcessor.hpp
index 8089ea9d28212bfd7ce2c11081c1faa53f76934e..c6302a9c72a912084fade2cec62e50da78922170 100644
--- a/src/language/node_processor/BinaryExpressionProcessor.hpp
+++ b/src/language/node_processor/BinaryExpressionProcessor.hpp
@@ -187,7 +187,7 @@ class BinaryExpressionProcessor final : public INodeProcessor
     }
   }
 
-  static inline const bool _is_defined{[] {
+  static inline const bool m_is_defined{[] {
     if constexpr (std::is_same_v<BinaryOpT, language::xor_op>) {
       return std::is_same_v<std::decay_t<A_DataT>, std::decay_t<B_DataT>> and std::is_integral_v<std::decay_t<A_DataT>>;
     }
@@ -198,7 +198,7 @@ class BinaryExpressionProcessor final : public INodeProcessor
   DataVariant
   execute(ExecutionPolicy& exec_policy)
   {
-    if constexpr (_is_defined) {
+    if constexpr (m_is_defined) {
       return this->_eval(m_node.children[0]->execute(exec_policy), m_node.children[1]->execute(exec_policy));
     } else {
       return {};   // LCOV_EXCL_LINE
@@ -207,7 +207,7 @@ class BinaryExpressionProcessor final : public INodeProcessor
 
   BinaryExpressionProcessor(ASTNode& node) : m_node{node}
   {
-    if constexpr (not _is_defined) {
+    if constexpr (not m_is_defined) {
       // LCOV_EXCL_START
       throw parse_error("invalid operands to binary expression", std::vector{m_node.begin()});
       // LCOV_EXCL_STOP
diff --git a/src/language/node_processor/BuiltinFunctionProcessor.hpp b/src/language/node_processor/BuiltinFunctionProcessor.hpp
index 31a561c90498f6141b57b8b453e069cb8f6f869a..7af54642e83f491b2ec1908b52a50864b9d0739c 100644
--- a/src/language/node_processor/BuiltinFunctionProcessor.hpp
+++ b/src/language/node_processor/BuiltinFunctionProcessor.hpp
@@ -12,16 +12,16 @@
 class BuiltinFunctionExpressionProcessor final : public INodeProcessor
 {
  private:
-  std::shared_ptr<IBuiltinFunctionEmbedder> m_embedded_;
+  std::shared_ptr<IBuiltinFunctionEmbedder> m_embedded;
 
  public:
   DataVariant
   execute(ExecutionPolicy& exec_policy)
   {
-    return m_embedded_->apply(exec_policy.currentContext().values());
+    return m_embedded->apply(exec_policy.currentContext().values());
   }
 
-  BuiltinFunctionExpressionProcessor(std::shared_ptr<IBuiltinFunctionEmbedder> embedded_) : m_embedded_(embedded_) {}
+  BuiltinFunctionExpressionProcessor(std::shared_ptr<IBuiltinFunctionEmbedder> embedded) : m_embedded(embedded) {}
 };
 
 class BuiltinFunctionProcessor : public INodeProcessor