Mercurial > vim
diff src/testdir/test_vim9_assign.vim @ 26630:57bc1001160b v8.2.3844
patch 8.2.3844: Vim9: no type error if assigning func(number) to func(string)
Commit: https://github.com/vim/vim/commit/44a8977de467241a2f9959253d06eff53a8baad9
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Dec 18 12:31:33 2021 +0000
patch 8.2.3844: Vim9: no type error if assigning func(number) to func(string)
Problem: Vim9: no type error if assigning a value with type func(number) to
a variable of type func(string).
Solution: Use check_type_maybe(): return MAYBE if a runtime type check is
useful. (issue #8492)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 18 Dec 2021 13:45:04 +0100 |
| parents | bdf11d8e3df3 |
| children | a07323eb647f |
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--- a/src/testdir/test_vim9_assign.vim +++ b/src/testdir/test_vim9_assign.vim @@ -2146,6 +2146,23 @@ def Test_script_funcref_case() CheckScriptFailure(lines, 'E704:') enddef +def Test_script_funcref_runtime_type_check() + var lines =<< trim END + vim9script + def FuncWithNumberArg(n: number) + enddef + def Test() + var Ref: func(string) = function(FuncWithNumberArg) + enddef + defcompile + END + # OK at compile time + CheckScriptSuccess(lines) + + # Type check fails at runtime + CheckScriptFailure(lines + ['Test()'], 'E1012: Type mismatch; expected func(string) but got func(number)') +enddef + def Test_inc_dec() var lines =<< trim END var nr = 7