feat(wheel_parser): refactor WheelParser class structure and include necessary headers

Author: Reim-developer

wheel_parser/include/wheel_parser/parser.hxx

@@ -1,15 +1,46 @@
+#include "wheel_lexer/kind.hxx"
 #if !defined(PARSER_HXX)
 #define PARSER_HXX
+
+#include <string_view>
 #include "config.hxx"
 #include <wheel_lexer/lexer.hxx>
 #include <wheel_lexer/token.hxx>
+#include <wheel_memory/allocator.hxx>
+#include "wheel_parser/ast/nodes.hxx"
+#include "wheel_parser/ast/symbol.hxx"
 
-using namespace wheel_lexer;
+using wheel_lexer::Token;
+using wheel_lexer::TokenKind;
+using wheel_lexer::Lexer;
+using wheel_memory::Arena;
+using wheel_parser::ast::VariableDeclaration;
+using wheel_parser::ast::StringInterner;
+using std::string_view;
 
 WHEEL_PARSER_NAMESPACE
     class WheelParser {
+        private:
+            Lexer           &m_lexer;
+            Arena           &m_arena;
+            Token           m_current_token;
+            StringInterner  &m_interner;
+
+        private:
+            void next_token() noexcept {
+                m_current_token = m_lexer.next_token();
+            }
+
+            bool str_matches(string_view str) noexcept;
+            bool token_matches(TokenKind token_kind) noexcept;
+
+            const Token &consume() noexcept;
+            const Token *copy_token() const noexcept;
+
         public:
-            WheelParser();
+            explicit WheelParser(Lexer &lexer, Arena &arena, StringInterner &interner) noexcept;
+            VariableDeclaration *parse_variable_declaration() noexcept;
+            void parse() noexcept;
     };
 
 WHEEL_PARSER_END_NAMESPACE