type system

CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.25)
-project(lilfbtf5 VERSION 0.1.17)
+project(lilfbtf5 VERSION 0.1.18)
 
 option(ENABLE_ADDRSAN "Enable the address sanitizer" OFF)
 option(ENABLE_UBSAN "Enable the ub sanitizer" OFF)

include/lilfbtf/fwddecl.h

@@ -22,6 +22,7 @@
 #include <blt/std/types.h>
 #include <functional>
 #include "blt/std/ranges.h"
+#include <string>
 
 namespace fb
 {
@@ -38,6 +39,8 @@ namespace fb
     
     using type_id = blt::size_t;
     using func_t_call_t = std::function<void(func_t&, blt::span<detail::node_t*>)>;
+    using function_name = const std::string&;
+    using type_name = const std::string&;
 }
 
 #endif //LILFBTF5_FWDDECL_H

include/lilfbtf/type.h

@@ -28,27 +28,32 @@ namespace fb
     class type_engine_t
     {
         private:
+            // type name -> type id
             blt::hashmap_t<std::string, type_id> name_to_id;
             // also used to assign IDs
             std::vector<std::string> id_to_name;
             // TODO: we don't need a hashmap for this.
             // Also a bad idea to store references, however these functions should be declared statically so this isn't as big of an issue.
-            blt::hashmap_t<type_id, std::reference_wrapper<func_t_call_t>> functions;
+            blt::hashmap_t<std::string, std::reference_wrapper<func_t_call_t>> functions;
+            // function names -> type_id
+            blt::hashmap_t<std::string, type_id> function_outputs;
+            // function names -> list of type_id for parameters where index 0 = arg 1
+            blt::hashmap_t<std::string, std::vector<type_id>> function_inputs;
         public:
             type_engine_t() = default;
             
-            type_id register_type(const std::string& type_name)
+            type_id register_type(type_name type_name);
+            
+            inline type_id get_type_id(type_name name)
             {
-                type_id id = id_to_name.size();
-                id_to_name.push_back(type_name);
-                name_to_id[type_name] = id;
-                return id;
+                return name_to_id[name];
             }
             
-            void register_function(const std::string& type_name, func_t_call_t& func)
-            {
+            type_engine_t& register_function(function_name func_name, func_t_call_t& func);
             
-            }
+            type_engine_t& associate_output(function_name func_name, type_name type_name);
+            
+            type_engine_t& associate_input(function_name func_name, type_name)
     };
 }
 

src/type.cpp

@@ -19,5 +19,24 @@
 
 namespace fb
 {
-
+    
+    type_id type_engine_t::register_type(type_name type_name)
+    {
+        type_id id = id_to_name.size();
+        id_to_name.push_back(type_name);
+        name_to_id[type_name] = id;
+        return id;
+    }
+    
+    type_engine_t& type_engine_t::register_function(function_name func_name, func_t_call_t& func)
+    {
+        functions.insert({func_name, func});
+        return *this;
+    }
+    
+    type_engine_t& type_engine_t::associate_output(function_name func_name, type_name type_name)
+    {
+        function_outputs[func_name] = get_type_id(type_name);
+        return *this;
+    }
 }