part of name expession type check plan

include/nodes/basic_nodes.hpp

@@ -282,7 +282,7 @@ public:
     value_ += NAME_DELIMITER + *identifier.get();
   }
 
-  std::vector<Identifier> git_fragments() const {
+  std::vector<Identifier> get_fragments() const {
     std::vector<Identifier> fragments;
     for (auto &&fragment_name :
          std::ranges::views::split(value_, NAME_DELIMITER)) {

include/type_check_utils.hpp

@@ -15,6 +15,12 @@ class ContextHolder;
 class State {
   friend ContextHolder;
 
+public:
+  struct VariableInfo {
+      nodes::TypeProxy type;
+      nodes::NameDefinition::Modifier modifier;
+  };
+
 public:
   bool insert_variable(const std::string &name, nodes::TypeProxy type,
                        nodes::NameDefinition::Modifier modifier) {
@@ -23,10 +29,10 @@ public:
           "Insert variable into contexts_ with zero elements in State");
     }
 
-    return contexts_.back().variables.insert({name, {type, modifier}}).second;
+    return contexts_.back().variables.insert({name, VariableInfo{type, modifier}}).second;
   }
 
-  std::optional<std::pair<nodes::TypeProxy, nodes::NameDefinition::Modifier>>
+  std::optional<VariableInfo>
   find_variable(const std::string &name) {
     for (ssize_t i = contexts_.size(); i >= 0; --i) {
       auto iter = contexts_[i].variables.find(name);
@@ -128,8 +134,7 @@ public:
   public:
     nodes::MaybeTypeProxy brought_type;
     nodes::MaybeTypeProxy returned_type;
-    std::unordered_map<std::string, std::pair<nodes::TypeProxy,
-                                              nodes::NameDefinition::Modifier>>
+    std::unordered_map<std::string, VariableInfo>
         variables;
 
   private:
@@ -168,7 +173,8 @@ public:
 
   Arguments expect(nodes::MaybeTypeProxy type) const {
     Arguments copy(*this);
-    copy.expected_types_ = (type.has_value() ? nodes::TypeProxies{type.value()} : nodes::TypeProxies{});
+    copy.expected_types_ = (type.has_value() ? nodes::TypeProxies{type.value()}
+                                             : nodes::TypeProxies{});
     return copy;
   }
 
@@ -241,13 +247,14 @@ nodes::TypeProxy check_same_to_pass_type_in_arguments(
 //     const std::string &message = "Type can't be passed to this node");
 
 nodes::TypeCheckResult type_same_to_expected(
-    nodes::TypeProxy type, const Arguments& argumensr,
-    const nodes::Node &node, SourcesManager &sources_manager,
+    nodes::TypeProxy type, const Arguments &argumensr, const nodes::Node &node,
+    SourcesManager &sources_manager,
     const std::string &message = "Different type with expected one");
 
-nodes::TypeCheckResult type_check_from_arguments(
-    nodes::TypeProxy type, const Arguments& arguments,
-    const nodes::Node &node, SourcesManager &sources_manager);
+nodes::TypeCheckResult
+type_check_from_arguments(nodes::TypeProxy type, const Arguments &arguments,
+                          const nodes::Node &node,
+                          SourcesManager &sources_manager);
 
 std::optional<const nodes::TypeDefinition *>
 find_type_definition_handle_errors(const std::string &name,

src/expression_type_check.cpp

@@ -543,7 +543,45 @@ type_check_name_expression(const nodes::NameExpression &expression,
   // TODO: constraints ??
 
   const auto name = expression.get_name();
-  for (size_t i = 0; i < /*fragments_count*/; ++i) { // go in prefixes and try to find matching var name
+
+  {
+    const auto fragments = name->get_fragments();
+    nodes::Identifier current_prefix = fragments.front();
+    std::optional<State::VariableInfo> maybe_variable;
+    size_t i = 0;
+    for (; i < fragments.size(); ++i) { // go in prefixes and try to find matching var namei
+        if (i > 0) {
+          current_prefix.append_after(fragments[i]);
+        }
+
+        maybe_variable = state.find_variable(*current_prefix.get());
+
+        if (maybe_variable.has_value()) {
+          break;
+        }
+    }
+
+    if (maybe_variable.has_value()) {
+        auto& type = maybe_variable.value().type;
+        for (size_t j = i + 1; j < fragments.size(); ++i) {
+        // TODO: switch by type types: Variant, Tuple, ...
+        // Tuple -> try to find field
+        // Others -> try to open / builtin fields ?
+          const auto maybe_field = type.get()->get_parameter_proxy_by_name(*fragments[j].get());
+
+          if (maybe_field.has_value()) {
+            type = maybe_field.value();
+            continue;
+          }
+
+          if (j + 1 == fragments.size()) { // then this can be method call
+            // TODO: try to fond method or local function
+          }
+
+          // fields for the names should be found
+          // last segment can be function name
+        }
+    }
   }
 
   // --- TODO --- deal with passed type --- TODO --- (additional argument)