API: Refactor: Register/unregister created/destroyed buffers

- Add the 'handle' field to `buf_T`
- Add declare/implement functions for registering/unregistering/retrieving
  buffers
- Register/unregister buffers when they are created/destroyed.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/nvim/api/private/handle.c b/src/nvim/api/private/handle.c
index 3bf519bc58..97f5cd88b5 100644
--- a/src/nvim/api/private/handle.c
+++ b/src/nvim/api/private/handle.c
@@ -26,6 +26,11 @@
     map_del(uint64_t)(name##_handles, name->handle);                          \
   }
 
+static uint64_t next_handle = 1;
+
+HANDLE_IMPL(buf_T, buffer)
+
 void handle_init()
 {
+  HANDLE_INIT(buffer);
 }