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vim-patch:8.2.4548: script-local function is deleted when used in a funcref

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Problem:    Script-local function is deleted when used in a funcref.
Solution:   Do not consider a function starting with "<SNR>" reference
            counted. (closes vim/vim#9916, closes vim/vim#9820)

fb43cfc2c6

Co-authored-by: Bram Moolenaar <Bram@vim.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
This commit is contained in:
Jan Edmund Lazo
2025-12-19 00:55:40 -05:00
parent ffb4526376
commit 2ba44af7e0
1 changed files with 5 additions and 3 deletions
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8
src/nvim/eval/userfunc.c
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@@ -1370,14 +1370,16 @@ void call_user_func(ufunc_T *fp, int argcount, typval_T *argvars, typval_T *rett
}
/// There are two kinds of function names:
/// 1. ordinary names, function defined with :function
/// 2. numbered functions and lambdas
/// 1. ordinary names, function defined with :function;
/// can start with "<SNR>123_" literally or with K_SPECIAL.
/// 2. Numbered functions and lambdas: "<lambda>123"
/// For the first we only count the name stored in func_hashtab as a reference,
/// using function() does not count as a reference, because the function is
/// looked up by name.
static bool func_name_refcount(const char *name)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE
{
return isdigit((uint8_t)(*name)) || *name == '<';
return isdigit((uint8_t)(*name)) || (name[0] == '<' && name[1] == 'l');
}
/// Check the argument count for user function "fp".