restore max_item_count

lua/cmp/source.lua

@@ -57,7 +57,8 @@ source.reset = function(self)
   self.request_offset = -1
   self.completion_context = nil
   self.status = source.SourceStatus.WAITING
-  self.complete_dedup(function() end)
+  self.complete_dedup(function()
+  end)
 end
 
 ---Return source config
@@ -92,9 +93,6 @@ source.get_entries = function(self, ctx)
 
   local prev = self.cache:get({ 'get_entries', tostring(self.revision) })
   if prev and ctx.cursor.row == prev.ctx.cursor.row and self.offset == prev.offset then
-    if ctx.cursor.col == prev.ctx.cursor.col then
-      return prev.entries
-    end
     -- only use prev entries when cursor is moved forward.
     -- and the pattern offset is the same.
     if prev.ctx.cursor.col <= ctx.cursor.col then
@@ -133,6 +131,14 @@ source.get_entries = function(self, ctx)
 
   self.cache:set({ 'get_entries', tostring(self.revision) }, { entries = entries, ctx = ctx, offset = self.offset })
 
+  if self:get_source_config().max_item_count then
+    local limited_entries = {}
+    for i = 1, math.min(#entries, self:get_source_config().max_item_count) do
+      limited_entries[i] = entries[i]
+    end
+    entries = limited_entries
+  end
+
   return entries
 end
 

lua/cmp/types/cmp.lua

@@ -162,6 +162,7 @@ cmp.ItemField = {
 ---@field public trigger_characters string[]|nil
 ---@field public keyword_pattern string|nil
 ---@field public keyword_length integer|nil
+---@field public max_item_count integer|nil
 ---@field public group_index integer|nil
 ---@field public entry_filter nil|function(entry: cmp.Entry, ctx: cmp.Context): boolean