From 00efc1c926e177e0eea06c4173fb0680b780b56f Mon Sep 17 00:00:00 2001
From: Iampete1 <iampete@hotmail.co.uk>
Date: Thu, 14 Nov 2024 15:39:45 +0000
Subject: [PATCH] AP_Scripting: generator: allow fields on ap_objects

---
 libraries/AP_Scripting/generator/src/main.c | 29 +++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/libraries/AP_Scripting/generator/src/main.c b/libraries/AP_Scripting/generator/src/main.c
index e22f03d05d..92278a34a1 100644
--- a/libraries/AP_Scripting/generator/src/main.c
+++ b/libraries/AP_Scripting/generator/src/main.c
@@ -1222,8 +1222,11 @@ void handle_ap_object(void) {
   } else if (strcmp(type, keyword_manual) == 0) {
     handle_manual(node, ALIAS_TYPE_MANUAL);
 
+  } else if (strcmp(type, keyword_field) == 0) {
+    handle_userdata_field(node);
+
   } else {
-    error(ERROR_SINGLETON, "AP_Objects only support renames, methods, semaphore or manual keywords (got %s)", type);
+    error(ERROR_SINGLETON, "AP_Objects only support renames, methods, field, semaphore or manual keywords (got %s)", type);
   }
 
   // check that we didn't just add 2 singleton flags
@@ -1830,6 +1833,28 @@ void emit_singleton_fields() {
   }
 }
 
+void emit_ap_object_field(const struct userdata *data, const struct userdata_field *field) {
+  fprintf(source, "static int %s_%s(lua_State *L) {\n", data->sanatized_name, field->name);
+  fprintf(source, "    %s *ud = *check_%s(L, 1);\n", data->name, data->sanatized_name);
+  emit_field(field, "ud", "->");
+}
+
+void emit_ap_object_fields() {
+  struct userdata * node = parsed_ap_objects;
+  while(node) {
+    struct userdata_field *field = node->fields;
+    if (field) {
+      start_dependency(source, node->dependency);
+      while(field) {
+        emit_ap_object_field(node, field);
+        field = field->next;
+      }
+      end_dependency(source, node->dependency);
+    }
+    node = node->next;
+  }
+}
+
 // emit refences functions for a call, return the number of arduments added
 int emit_references(const struct argument *arg, const char * tab) {
   int arg_index = NULLABLE_ARG_COUNT_BASE + 2;
@@ -3162,7 +3187,7 @@ int main(int argc, char **argv) {
   emit_methods(parsed_userdata);
   emit_index(parsed_userdata);
 
-
+  emit_ap_object_fields();
   emit_methods(parsed_ap_objects);
   emit_index(parsed_ap_objects);