# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1614078903 -3600
# Node ID 90fbe1a3b23c23ebf050764e0fe0b900fd3874b6
# Parent  e6254ce853b77a0082df47e0cb390e22df44bd67
patch 8.2.2544: Vim9: error for argument when checking for lambda

Commit: https://github.com/vim/vim/commit/bc327ccc3dd408463fc74266f57b879888a13e51
Author: Bram Moolenaar <Bram@vim.org>
Date:   Tue Feb 23 12:05:46 2021 +0100

    patch 8.2.2544: Vim9: error for argument when checking for lambda

    Problem:    Vim9: error for argument when checking for lambda.
    Solution:   Respect the skip flag. (closes https://github.com/vim/vim/issues/7887)

diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -1922,6 +1922,14 @@ def Test_expr7_lambda()
 
   CheckDefSuccess(['var Fx = (a) => [0,', ' 1]'])
   CheckDefFailure(['var Fx = (a) => [0', ' 1]'], 'E696:', 2)
+
+  # no error for existing script variable when checking for lambda
+  lines =<< trim END
+    vim9script
+    var name = 0
+    eval (name + 2) / 3
+  END
+  CheckScriptSuccess(lines)
 enddef
 
 def NewLambdaWithComments(): func
diff --git a/src/userfunc.c b/src/userfunc.c
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -82,7 +82,8 @@ one_function_arg(
     }
 
     // Vim9 script: cannot use script var name for argument.
-    if (argtypes != NULL && script_var_exists(arg, p - arg, FALSE, NULL) == OK)
+    if (!skip && argtypes != NULL && script_var_exists(arg, p - arg,
+							    FALSE, NULL) == OK)
     {
 	semsg(_(e_variable_already_declared_in_script), arg);
 	return arg;
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2544,
+/**/
     2543,
 /**/
     2542,