fix #1035

Author: sumneko

changelog.md

@@ -3,6 +3,7 @@
 ## 3.0.1
 * `FIX` [#1033](https://github.com./sumneko/lua-language-server/issues/1033)
 * `FIX` [#1034](https://github.com./sumneko/lua-language-server/issues/1034)
+* `FIX` [#1035](https://github.com./sumneko/lua-language-server/issues/1035)
 
 ## 3.0.0
 `2022-4-10`

script/core/code-action.lua

@@ -415,6 +415,12 @@ local function checkSwapParams(results, uri, start, finish)
             elseif source.type == 'funcargs' then
                 local var = source.parent.parent
                 if guide.isSet(var) then
+                    if var.type == 'tablefield' then
+                        var = var.field
+                    end
+                    if var.type == 'tableindex' then
+                        var = var.index
+                    end
                     node = text:sub(
                         guide.positionToOffset(state, var.start) + 1,
                         guide.positionToOffset(state, var.finish)

test/code_action/init.lua

@@ -113,6 +113,36 @@ return function(<?a?>, b, c) end
     },
 }
 
+TEST [[
+f = function (<?a?>, b) end
+]]
+{
+    {
+        title = lang.script('ACTION_SWAP_PARAMS', {
+            node  = 'f',
+            index = 2,
+        }),
+        kind  = 'refactor.rewrite',
+        edit  = EXISTS,
+    },
+}
+
+TEST [[
+local t = {
+    f = function (<?a?>, b) end
+}
+]]
+{
+    {
+        title = lang.script('ACTION_SWAP_PARAMS', {
+            node  = 'f',
+            index = 2,
+        }),
+        kind  = 'refactor.rewrite',
+        edit  = EXISTS,
+    },
+}
+
 --TEST [[
 --<?print(1)
 --print(2)?>