From 1d4a5cd18537d054a564ff19b9361120597d9dd7 Mon Sep 17 00:00:00 2001 From: Raphael Date: Tue, 12 Dec 2023 19:06:22 +0800 Subject: feat(eval): exists() function supports checking v:lua functions (#26485) Problem: Vimscript function exists() can't check v:lua functions. Solution: Add support for v:lua functions to exists(). --- src/nvim/lua/executor.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'src/nvim/lua') diff --git a/src/nvim/lua/executor.c b/src/nvim/lua/executor.c index e665732c1a..e0bdbbc1e9 100644 --- a/src/nvim/lua/executor.c +++ b/src/nvim/lua/executor.c @@ -2313,3 +2313,21 @@ void nlua_init_defaults(void) os_errmsg("\n"); } } + +/// check lua function exist +bool nlua_func_exists(const char *lua_funcname) +{ + MAXSIZE_TEMP_ARRAY(args, 1); + size_t length = strlen(lua_funcname) + 8; + char *str = xmalloc(length); + vim_snprintf(str, length, "return %s", lua_funcname); + ADD_C(args, CSTR_AS_OBJ(str)); + Error err = ERROR_INIT; + Object result = NLUA_EXEC_STATIC("return type(loadstring(...)()) =='function'", args, &err); + xfree(str); + + if (result.type != kObjectTypeBoolean) { + return false; + } + return result.data.boolean; +} -- cgit