# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1606337104 -3600
# Node ID a0a998d2e443648f87f9c97146d78222cc24ef17
# Parent  11abae1d1ce926ed9046202cba4c14cb613496b9
patch 8.2.2053: Vim9: lamba doesn't accept argument types

Commit: https://github.com/vim/vim/commit/c2ca935d26b3fc64a13d4e7d0583fc787efe61d0
Author: Bram Moolenaar <Bram@vim.org>
Date:   Wed Nov 25 21:30:11 2020 +0100

    patch 8.2.2053: Vim9: lamba doesn't accept argument types

    Problem:    Vim9: lamba doesn't accept argument types.
    Solution:   Optionally accept argument types at the script level.

diff --git a/src/eval.c b/src/eval.c
--- a/src/eval.c
+++ b/src/eval.c
@@ -3266,7 +3266,7 @@ eval7(
      * Lambda: {arg, arg -> expr}
      * Dictionary: {'key': val, 'key': val}
      */
-    case '{':	ret = get_lambda_tv(arg, rettv, FALSE, evalarg);
+    case '{':	ret = get_lambda_tv(arg, rettv, in_vim9script(), evalarg);
 		if (ret == NOTDONE)
 		    ret = eval_dict(arg, rettv, evalarg, FALSE);
 		break;
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
@@ -1828,6 +1828,9 @@ def Test_expr7_lambda()
 
       assert_equal(false, LambdaUsingArg(0)())
       assert_equal(true, LambdaUsingArg(1)())
+
+      var res = map([1, 2, 3], {i: number, v: number -> i + v})
+      assert_equal([1, 3, 5], res)
   END
   CheckDefAndScriptSuccess(lines)
 
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 */
 /**/
+    2053,
+/**/
     2052,
 /**/
     2051,