feat(lua): add api and lua autocmds

3 files changed, 22 insertions, 1 deletions

diff --git a/src/nvim/eval/funcs.c b/src/nvim/eval/funcs.c
index c5b01701de..49dde537c3 100644
--- a/src/nvim/eval/funcs.c
+++ b/src/nvim/eval/funcs.c
@@ -894,6 +894,7 @@ static void f_call(typval_T *argvars, typval_T *rettv, FunPtr fptr)
     partial = argvars[0].vval.v_partial;
     func = partial_name(partial);
   } else if (nlua_is_table_from_lua(&argvars[0])) {
+    // TODO(tjdevries): UnifiedCallback
     func = nlua_register_table_as_callable(&argvars[0]);
     owned = true;
   } else {
diff --git a/src/nvim/eval/typval.c b/src/nvim/eval/typval.c
index 6f8b032d41..fbda7fbc3c 100644
--- a/src/nvim/eval/typval.c
+++ b/src/nvim/eval/typval.c
@@ -28,11 +28,11 @@
 #include "nvim/mbyte.h"
 #include "nvim/memory.h"
 #include "nvim/message.h"
+#include "nvim/os/fileio.h"
 #include "nvim/os/input.h"
 #include "nvim/pos.h"
 #include "nvim/types.h"
 #include "nvim/vim.h"
-#include "nvim/os/fileio.h"
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "eval/typval.c.generated.h"
@@ -1123,6 +1123,8 @@ bool tv_callback_equal(const Callback *cb1, const Callback *cb2)
     // FIXME: this is inconsistent with tv_equal but is needed for precision
     // maybe change dictwatcheradd to return a watcher id instead?
     return cb1->data.partial == cb2->data.partial;
+  case kCallbackLua:
+    return cb1->data.luaref == cb2->data.luaref;
   case kCallbackNone:
     return true;
   }
@@ -1142,6 +1144,9 @@ void callback_free(Callback *callback)
   case kCallbackPartial:
     partial_unref(callback->data.partial);
     break;
+  case kCallbackLua:
+    NLUA_CLEAR_REF(callback->data.luaref);
+    break;
   case kCallbackNone:
     break;
   }
@@ -1149,6 +1154,12 @@ void callback_free(Callback *callback)
   callback->data.funcref = NULL;
 }
 
+/// Check if callback is freed
+bool callback_is_freed(Callback callback)
+{
+  return false;
+}
+
 /// Copy a callback into a typval_T.
 void callback_put(Callback *cb, typval_T *tv)
   FUNC_ATTR_NONNULL_ALL
@@ -1164,6 +1175,9 @@ void callback_put(Callback *cb, typval_T *tv)
     tv->vval.v_string = vim_strsave(cb->data.funcref);
     func_ref(cb->data.funcref);
     break;
+  case kCallbackLua:
+    // TODO(tjdevries): I'm not even sure if this is strictly necessary?
+    abort();
   default:
     tv->v_type = VAR_SPECIAL;
     tv->vval.v_special = kSpecialVarNull;
@@ -1185,6 +1199,9 @@ void callback_copy(Callback *dest, Callback *src)
     dest->data.funcref = vim_strsave(src->data.funcref);
     func_ref(src->data.funcref);
     break;
+  case kCallbackLua:
+    dest->data.luaref = api_new_luaref(src->data.luaref);
+    break;
   default:
     dest->data.funcref = NULL;
     break;
diff --git a/src/nvim/eval/typval.h b/src/nvim/eval/typval.h
index ad01c01499..40dc819754 100644
--- a/src/nvim/eval/typval.h
+++ b/src/nvim/eval/typval.h
@@ -72,15 +72,18 @@ typedef enum {
   kCallbackNone = 0,
   kCallbackFuncref,
   kCallbackPartial,
+  kCallbackLua,
 } CallbackType;
 
 typedef struct {
   union {
     char_u *funcref;
     partial_T *partial;
+    LuaRef luaref;
   } data;
   CallbackType type;
 } Callback;
+
 #define CALLBACK_INIT { .type = kCallbackNone }
 #define CALLBACK_NONE ((Callback)CALLBACK_INIT)