Mercurial > vim
diff src/vim9execute.c @ 23350:9b86957ddd95 v8.2.2218
patch 8.2.2218: Vim9: failure if passing more args to lambda than expected
Commit: https://github.com/vim/vim/commit/fc0e8f5c3ef51c86cfa4a51f92b264ef79962b9d
Author: Bram Moolenaar <Bram@vim.org>
Date: Fri Dec 25 20:24:51 2020 +0100
patch 8.2.2218: Vim9: failure if passing more args to lambda than expected
Problem: Vim9: failure if passing more arguments to a lambda than expected.
Solution: Only put expected arguments on the stack. (closes https://github.com/vim/vim/issues/7548)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Fri, 25 Dec 2020 20:30:03 +0100 |
| parents | 456d625bb8c1 |
| children | f181fe2150ab |
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--- a/src/vim9execute.c +++ b/src/vim9execute.c @@ -1020,8 +1020,11 @@ call_def_function( ga_init2(&ectx.ec_trystack, sizeof(trycmd_T), 10); ga_init2(&ectx.ec_funcrefs, sizeof(partial_T *), 10); - // Put arguments on the stack. - for (idx = 0; idx < argc; ++idx) + // Put arguments on the stack, but no more than what the function expects. + // A lambda can be called with more arguments than it uses. + for (idx = 0; idx < argc + && (ufunc->uf_va_name != NULL || idx < ufunc->uf_args.ga_len); + ++idx) { if (ufunc->uf_arg_types != NULL && idx < ufunc->uf_args.ga_len && check_typval_type(ufunc->uf_arg_types[idx], &argv[idx],