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patch 8.2.3911: Vim9: type check for filter() does not accept unknown

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Problem:    Vim9: type check for filter() does not accept unknown.
Solution:   Also accept unknown for the return type. (closes #9413)
This commit is contained in:
Bram Moolenaar
2021-12-27 12:29:19 +00:00
parent 23018f2d4b
commit ef8f04b1d1
3 changed files with 9 additions and 0 deletions
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6
src/testdir/test_vim9_builtin.vim
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@@ -1253,6 +1253,12 @@ def Test_filter()
assert_equal([], filter([1, 2, 3], '0'))
assert_equal([1, 2, 3], filter([1, 2, 3], '1'))
assert_equal({b: 20}, filter({a: 10, b: 20}, 'v:val == 20'))
def GetFiltered(): list<number>
var Odd: func = (_, v) => v % 2
return range(3)->filter(Odd)
enddef
assert_equal([1], GetFiltered())
enddef
def Test_filter_wrong_dict_key_type()