Parse variable declarations

include/elna/source/driver.hpp

@@ -0,0 +1,35 @@
+#pragma once
+
+#include <list>
+#include "elna/source/ast.hpp"
+#include "location.hh"
+
+namespace elna::source
+{
+    position make_position(const yy::location& location);
+
+    class syntax_error final : public error
+    {
+        std::string message;
+
+    public:
+        syntax_error(const std::string& message,
+                const std::filesystem::path& input_file, const yy::location& location);
+
+        virtual std::string what() const override;
+    };
+
+    class driver
+    {
+        std::list<std::unique_ptr<struct error>> m_errors;
+        const std::filesystem::path input_file;
+
+    public:
+        std::unique_ptr<program> tree;
+
+        driver(const std::filesystem::path& input_file);
+
+        void error(const yy::location& loc, const std::string& message);
+        const std::list<std::unique_ptr<struct error>>& errors() const noexcept;
+    };
+}