commit 2949cfdbe4335b9abcfeda1be4dfc52090ee1df6
author Bram Moolenaar <Bram@vim.org> Thu Dec 31 21:28:47 2020 +0100
committer Bram Moolenaar <Bram@vim.org> Thu Dec 31 21:28:47 2020 +0100
tree c52ad04115de4f66f1ad0af46b48bf7b4043d06f
parent adc8e4464563a2952c10362d396bb4a9f28cd12d

patch 8.2.2257: Vim9: using -> for lambda is ambiguous

Problem:    Vim9: using -> for lambda is ambiguous.
Solution:   Stop supporting ->, must use =>.

src/testdir/test_vim9_cmd.vim

diff --git a/src/testdir/test_vim9_cmd.vim b/src/testdir/test_vim9_cmd.vim
index 2017846..095158c 100644
--- a/src/testdir/test_vim9_cmd.vim
+++ b/src/testdir/test_vim9_cmd.vim
@@ -305,7 +305,7 @@
 def Test_skipped_expr_linebreak()
   if 0
     var x = []
-               ->map({ -> 0})
+               ->map(() => 0)
   endif
 enddef
 
@@ -368,7 +368,7 @@
 
 def Test_filter_is_not_modifier()
   var tags = [{a: 1, b: 2}, {x: 3, y: 4}]
-  filter(tags, { _, v -> has_key(v, 'x') ? 1 : 0 })
+  filter(tags, ( _, v) => has_key(v, 'x') ? 1 : 0 )
   assert_equal([{x: 3, y: 4}], tags)
 enddef