Mercurial > vim
diff src/testdir/test_vim9_builtin.vim @ 27517:f00a7a2bee21 v8.2.4286
patch 8.2.4286: Vim9: strict type checking after copy() and deepcopy()
Commit: https://github.com/vim/vim/commit/381692b6f1c2ec9b73a139500286ddc9347a1c01
Author: Bram Moolenaar <Bram@vim.org>
Date: Wed Feb 2 20:01:27 2022 +0000
patch 8.2.4286: Vim9: strict type checking after copy() and deepcopy()
Problem: Vim9: strict type checking after copy() and deepcopy().
Solution: Allow type to change after making a copy. (closes https://github.com/vim/vim/issues/9644)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 02 Feb 2022 21:15:03 +0100 |
| parents | 4cea92e99a5a |
| children | 2397b18d6f94 |
line wrap: on
line diff
--- a/src/testdir/test_vim9_builtin.vim +++ b/src/testdir/test_vim9_builtin.vim @@ -720,6 +720,31 @@ def Test_copy_return_type() res->assert_equal(6) dl = deepcopy([1, 2, 3], true) + + # after a copy() the type can change, but not the item itself + var nl: list<number> = [1, 2] + assert_equal([1, 2, 'x'], nl->copy()->extend(['x'])) + + var lines =<< trim END + var nll: list<list<number>> = [[1, 2]] + nll->copy()[0]->extend(['x']) + END + v9.CheckDefExecAndScriptFailure(lines, 'E1013: Argument 2: type mismatch, expected list<number> but got list<string> in extend()') + + var nd: dict<number> = {a: 1, b: 2} + assert_equal({a: 1, b: 2, c: 'x'}, nd->copy()->extend({c: 'x'})) + lines =<< trim END + var ndd: dict<dict<number>> = {a: {x: 1, y: 2}} + ndd->copy()['a']->extend({z: 'x'}) + END + v9.CheckDefExecAndScriptFailure(lines, 'E1013: Argument 2: type mismatch, expected dict<number> but got dict<string> in extend()') + + # after a deepcopy() the item type can also change + var nll: list<list<number>> = [[1, 2]] + assert_equal([1, 2, 'x'], nll->deepcopy()[0]->extend(['x'])) + + var ndd: dict<dict<number>> = {a: {x: 1, y: 2}} + assert_equal({x: 1, y: 2, z: 'x'}, ndd->deepcopy()['a']->extend({z: 'x'})) enddef def Test_count()