Patch 8.2.1141
Problem: Vim9: return type of filter() is any.
Solution: Use type of the argument.
Files: src/evalfunc.c, src/testdir/test_vim9_func.vim
*** ../vim-8.2.1140/src/evalfunc.c 2020-07-05 20:08:35.619916006 +0200
--- src/evalfunc.c 2020-07-05 20:14:46.594793658 +0200
***************
*** 581,587 ****
{"file_readable", 1, 1, FEARG_1, ret_number, f_filereadable}, //
obsolete
{"filereadable", 1, 1, FEARG_1, ret_number, f_filereadable},
{"filewritable", 1, 1, FEARG_1, ret_number, f_filewritable},
! {"filter", 2, 2, FEARG_1, ret_any, f_filter},
{"finddir", 1, 3, FEARG_1, ret_string, f_finddir},
{"findfile", 1, 3, FEARG_1, ret_string, f_findfile},
{"flatten", 1, 2, FEARG_1, ret_list_any, f_flatten},
--- 581,587 ----
{"file_readable", 1, 1, FEARG_1, ret_number, f_filereadable}, //
obsolete
{"filereadable", 1, 1, FEARG_1, ret_number, f_filereadable},
{"filewritable", 1, 1, FEARG_1, ret_number, f_filewritable},
! {"filter", 2, 2, FEARG_1, ret_first_arg, f_filter},
{"finddir", 1, 3, FEARG_1, ret_string, f_finddir},
{"findfile", 1, 3, FEARG_1, ret_string, f_findfile},
{"flatten", 1, 2, FEARG_1, ret_list_any, f_flatten},
*** ../vim-8.2.1140/src/testdir/test_vim9_func.vim 2020-07-05
20:08:35.619916006 +0200
--- src/testdir/test_vim9_func.vim 2020-07-05 20:15:38.338632156 +0200
***************
*** 918,923 ****
--- 918,932 ----
assert_equal(6, res)
enddef
+ def Test_filter_return_type()
+ let l = filter([1, 2, 3], {-> 1})
+ let res = 0
+ for n in l
+ res += n
+ endfor
+ assert_equal(6, res)
+ enddef
+
def Line_continuation_in_def(dir: string = ''): string
let path: string = empty(dir)
\ ? 'empty'
*** ../vim-8.2.1140/src/version.c 2020-07-05 20:08:35.619916006 +0200
--- src/version.c 2020-07-05 20:16:26.042482499 +0200
***************
*** 756,757 ****
--- 756,759 ----
{ /* Add new patch number below this line */
+ /**/
+ 1141,
/**/
--
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