Add pum#update_current_item()

autoload/pum.vim

@@ -217,6 +217,14 @@ function pum#current_item() abort
   return info.items->get(info.selected, {})
 endfunction
 
+function pum#update_current_item(dict) abort
+  call extend(pum#current_item(), a:dict)
+
+  if '#User#PumCompleteChanged'->exists()
+    doautocmd <nomodeline> User PumCompleteChanged
+  endif
+endfunction
+
 function pum#get_pos() abort
   if !pum#visible()
     return {}

doc/pum.txt

@@ -268,6 +268,10 @@ pum#complete_info([{what}])
 		If {what} is supplied, then only the items listed in {what}
 		are returned.
 
+							*pum#current_item()*
+pum#current_item()
+		Get current cursor item.
+
 							*pum#entered()*
 pum#entered()
 		Returns |v:true| if you have selected or inserted popup menu.
@@ -334,6 +338,12 @@ pum#skip_complete()
 		If it is |v:true|, auto completion plugin must be skipped auto
 		completion.
 
+						*pum#update_current_item()*
+pum#update_current_item({dict})
+		Update current cursor item by {dict}.
+		It executes |PumCompleteChanged| autocmd.
+		NOTE: It does not redraw current popup menu.
+
 							*pum#visible()*
 pum#visible()
 		Returns |v:true| if the popup menu is visible like
@@ -427,6 +437,10 @@ PumCompleteDone
 		Note: When |v:completed_item| is not read only and insert
 		mode, |CompleteDone| is also called.
 
+							*PumCompleteDonePre*
+PumCompleteDonePre
+		It is called before |PumCompleteDone| like |CompleteDonePre|.
+		|g:pum#completed_item| gives the completed item.
 
 ==============================================================================
 EXAMPLES						*pum-examples*