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path: root/src/openvic-dataloader/v2script/AbstractSyntaxTree.cpp
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#include <openvic-dataloader/v2script/AbstractSyntaxTree.hpp>

#include <lexy/dsl/option.hpp>
#include <lexy/encoding.hpp>
#include <lexy/input_location.hpp>

#include <dryad/node.hpp>
#include <dryad/tree.hpp>

#include "ParseState.hpp"
#include <range/v3/view/drop.hpp>

using namespace ovdl::v2script::ast;

ListValue::ListValue(dryad::node_ctor ctor, StatementList statements)
   : node_base(ctor) {
   insert_child_list_after(nullptr, statements);
   if (statements.empty()) {
      _last_statement = nullptr;
   } else {
      _last_statement = statements.back();
   }
}

ListValue::ListValue(dryad::node_ctor ctor, AssignStatementList statements) : node_base(ctor) {
   insert_child_list_after(nullptr, statements);
   if (statements.empty()) {
      _last_statement = nullptr;
   } else {
      _last_statement = statements.back();
   }
}

ListValue::ListValue(dryad::node_ctor ctor) : node_base(ctor) {
   _last_statement = nullptr;
}

FileTree::FileTree(dryad::node_ctor ctor, StatementList statements) : node_base(ctor) {
   insert_child_list_after(nullptr, statements);
   if (statements.empty()) {
      _last_node = nullptr;
   } else {
      _last_node = statements.back();
   }
}

FileTree::FileTree(dryad::node_ctor ctor, AssignStatementList statements) : node_base(ctor) {
   insert_child_list_after(nullptr, statements);
   if (statements.empty()) {
      _last_node = nullptr;
   } else {
      _last_node = statements.back();
   }
}

FileTree::FileTree(dryad::node_ctor ctor) : node_base(ctor) {
   _last_node = nullptr;
}

std::string FileAbstractSyntaxTree::make_list_visualizer() const {
   const int INDENT_SIZE = 2;

   std::string result;
   unsigned int level = 0;

   for (auto [event, node] : dryad::traverse(this->_tree)) {
      if (event == dryad::traverse_event::exit) {
         --level;
         continue;
      }

      result.append(INDENT_SIZE * level, ' ');
      result.append(fmt::format("- {}: ", get_kind_name(node->kind())));

      dryad::visit_node(
         node,
         [&](const FlatValue* value) {
            result.append(value->value(this->_symbol_interner));
         },
         [&](const ListValue* value) {
         },
         [&](const NullValue* value) {
         },
         [&](const EventStatement* statement) {
            result.append(statement->is_province_event() ? "province_event" : "country_event");
         },
         [&](const AssignStatement* statement) {
         },
         [&](const FileTree* tree) {
         });

      result.append(1, '\n');

      if (event == dryad::traverse_event::enter)
         ++level;
   }

   return result;
}

std::string FileAbstractSyntaxTree::make_native_visualizer() const {
   constexpr int INDENT_SIZE = 2;

   std::string result;
   unsigned int level = 0;

   dryad::visit_tree(
      this->_tree,
      [&](const IdentifierValue* value) {
         result.append(value->value(this->_symbol_interner));
      },
      [&](const StringValue* value) {
         result.append(1, '"').append(value->value(this->_symbol_interner)).append(1, '"');
      },
      [&](dryad::child_visitor<NodeKind> visitor, const ValueStatement* statement) {
         visitor(statement->value());
      },
      [&](dryad::child_visitor<NodeKind> visitor, const AssignStatement* statement) {
         visitor(statement->left());
         if (statement->right()->kind() != NodeKind::NullValue) {
            result.append(" = ");
            visitor(statement->right());
         }
      },
      [&](dryad::child_visitor<NodeKind> visitor, const ListValue* value) {
         result.append(1, '{');
         level++;
         for (const auto& statement : value->statements()) {
            result
               .append(1, '\n')
               .append(INDENT_SIZE * level, ' ');
            visitor(statement);
         }
         level--;
         result
            .append(1, '\n')
            .append(INDENT_SIZE * level, ' ')
            .append(1, '}');
      },
      [&](dryad::child_visitor<NodeKind> visitor, const EventStatement* statement) {
         result.append(statement->is_province_event() ? "province_event" : "country_event");
         if (statement->right()->kind() != NodeKind::NullValue) {
            result.append(" = ");
            visitor(statement->right());
         }
      },
      [&](dryad::child_visitor<NodeKind> visitor, const FileTree* value) {
         auto statements = value->statements();
         visitor(*statements.begin());

         for (const auto& statement : statements | ranges::views::drop(1)) {
            result
               .append(1, '\n')
               .append(INDENT_SIZE * level, ' ');
            visitor(statement);
         }
      });

   return result;
}