FIX Sometimes providing incorrect autocompletion when chaining calls

Author: sumneko

changelog.md

@@ -3,6 +3,9 @@
 ## Unreleased
 <!-- Add all new changes here. They will be moved under a version at release -->
 
+## 3.9.3
+* `FIX` Sometimes providing incorrect autocompletion when chaining calls
+
 ## 3.9.2
 `2024-6-6`
 * `NEW` Reference workspace symbols in comments using `[some text](lua://symbolName)` syntax

script/core/completion/completion.lua

@@ -1594,6 +1594,12 @@ local function findCall(state, position)
             end
         end
     end)
+    if not call then
+        return nil
+    end
+    if call.node.finish > position then
+        return nil
+    end
     return call
 end
 

test/completion/common.lua

@@ -4462,3 +4462,30 @@ new 'A' {
         kind  = define.CompletionItemKind.Property,
     }
 }
+
+TEST [[
+---@enum(key) enum
+local t = {
+    a = 1,
+    b = 2,
+    c = 3,
+}
+
+---@class A
+local M
+
+---@param optional enum
+function M:optional(optional)
+end
+
+---@return A
+function M:self()
+    return self
+end
+
+---@type A
+local m
+
+m:self(<??>):optional()
+]]
+(nil)