Mercurial > vim
diff src/testdir/test_vim9_func.vim @ 30065:6cf788ab844c v9.0.0370
patch 9.0.0370: cleaning up afterwards can make a function messy
Commit: https://github.com/vim/vim/commit/1d84f7608f1e41dad03b8cc7925895437775f7c0
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Sep 3 21:35:53 2022 +0100
patch 9.0.0370: cleaning up afterwards can make a function messy
Problem: Cleaning up afterwards can make a function messy.
Solution: Add the :defer command.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 03 Sep 2022 22:45:03 +0200 |
| parents | 111d97d7b93a |
| children | ba22d5536d3e |
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--- a/src/testdir/test_vim9_func.vim +++ b/src/testdir/test_vim9_func.vim @@ -4272,6 +4272,36 @@ def Test_cexpr_errmsg_line_number() v9.CheckScriptFailure(lines, 'E777', 2) enddef +def AddDefer(s: string) + g:deferred->extend([s]) +enddef + +def DeferTwo() + g:deferred->extend(['in Two']) + for n in range(3) + defer g:AddDefer('two' .. n) + endfor + g:deferred->extend(['end Two']) +enddef + +def DeferOne() + g:deferred->extend(['in One']) + defer g:AddDefer('one') + g:DeferTwo() + g:deferred->extend(['end One']) + + writefile(['text'], 'XdeferFile') + defer delete('XdeferFile') +enddef + +def Test_defer() + g:deferred = [] + g:DeferOne() + assert_equal(['in One', 'in Two', 'end Two', 'two2', 'two1', 'two0', 'end One', 'one'], g:deferred) + unlet g:deferred + assert_equal('', glob('XdeferFile')) +enddef + " The following messes up syntax highlight, keep near the end. if has('python3') def Test_python3_command()