patch 8.2.4458: Vim9: compiling filter() call fails with unknown arguments
Problem: Vim9: compiling filter() call fails with 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 7366b8c..dfec991 100644
--- a/src/testdir/test_vim9_builtin.vim
+++ b/src/testdir/test_vim9_builtin.vim
@@ -1340,10 +1340,21 @@
enddef
assert_equal([1], GetFiltered())
+ var lines =<< trim END
+ vim9script
+ def Func(): list<string>
+ var MatchWord: func: bool = (_, v) => true
+ var l = ['xxx']
+ return l->filter(MatchWord)
+ enddef
+ assert_equal(['xxx'], Func())
+ END
+ v9.CheckScriptSuccess(lines)
+
v9.CheckDefAndScriptFailure(['filter(1.1, "1")'], ['E1013: Argument 1: type mismatch, expected list<any> but got float', 'E1251: List, Dictionary, Blob or String required for argument 1'])
v9.CheckDefAndScriptFailure(['filter([1, 2], 4)'], ['E1256: String or function required for argument 2', 'E1024: Using a Number as a String'])
- var lines =<< trim END
+ lines =<< trim END
def F(i: number, v: any): string
return 'bad'
enddef