commit 5597ba046790e5ffd76dfc327d7898c56df65d3f
author Bram Moolenaar <Bram@vim.org> Sun Sep 27 17:45:03 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Sun Sep 27 17:45:03 2020 +0200
tree 3b82fdb7736af0280c32831a8af39eb1bb88d7a4
parent a5fe91e6dc610bc823bc3201e2c88179989b13fb

patch 8.2.1758: Vim9: type of unmaterialized list is wrong

Problem:    Vim9: type of unmaterialized list is wrong.
Solution:   Use list<number>.

src/testdir/test_vim9_expr.vim

diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index 411ed70..fe43e80 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -1517,6 +1517,10 @@
   llstring = [[], ['text']]
   llstring = [[], []]
 
+  var rangelist: list<number> = range(3)
+  g:rangelist = range(3)
+  CheckDefExecFailure(["var x: list<string> = g:rangelist"], 'E1012: Type mismatch; expected list<string> but got list<number>', 1)
+
   CheckDefFailure(["let x = 1234[3]"], 'E1107:', 1)
   CheckDefExecFailure(["let x = g:anint[3]"], 'E1062:', 1)