patch 8.2.4459: Vim9: compiling sort() call fails with unknown arguments
Problem: Vim9: compiling sort() call fails with a funcref that has unknown
arguments.
Solution: Do not check the arguments if they are unknown at compile time.
(closes #9835)
diff --git a/src/testdir/test_vim9_builtin.vim b/src/testdir/test_vim9_builtin.vim
index dfec991..7577aec 100644
--- a/src/testdir/test_vim9_builtin.vim
+++ b/src/testdir/test_vim9_builtin.vim
@@ -3812,6 +3812,17 @@
sort([1, 2, 3], (a: any, b: any) => 1)
END
v9.CheckDefAndScriptSuccess(lines)
+
+ lines =<< trim END
+ vim9script
+ def SortedList(): list<number>
+ var Lambda: func: number = (a, b): number => a - b
+ var l = [3, 2, 1]
+ return l->sort(Lambda)
+ enddef
+ SortedList()->assert_equal([1, 2, 3])
+ END
+ v9.CheckScriptSuccess(lines)
enddef
def Test_sort_compare_func_fails()