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patch 8.2.2733: detecting Lua version is not reliable

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Problem:    Detecting Lua version is not reliable.
Solution:   Add "vim.lua_version". (Ozaki Kiichi, closes #8080)
This commit is contained in:
Bram Moolenaar
2021-04-07 20:11:12 +02:00
parent e5b0b98a90
commit 125ed2745c
5 changed files with 29 additions and 13 deletions
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23
src/if_lua.c
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@@ -24,6 +24,12 @@
#define LUAVIM_EVALNAME "luaeval"
#define LUAVIM_EVALHEADER "local _A=select(1,...) return "
#ifdef LUA_RELEASE
# define LUAVIM_VERSION LUA_RELEASE
#else
# define LUAVIM_VERSION LUA_VERSION
#endif
typedef buf_T *luaV_Buffer;
typedef win_T *luaV_Window;
typedef dict_T *luaV_Dict;
@@ -2087,6 +2093,7 @@ static const luaL_Reg luaV_module[] = {
{"open", luaV_open},
{"type", luaV_type},
{"call", luaV_call},
{"lua_version", NULL},
{NULL, NULL}
};
@@ -2168,6 +2175,20 @@ luaV_setref(lua_State *L)
return 1;
}
static int
luaV_pushversion(lua_State *L)
{
int major = 0;
int minor = 0;
int patch = 0;
char s[16];
sscanf(LUAVIM_VERSION, "Lua %d.%d.%d", &major, &minor, &patch);
vim_snprintf(s, sizeof(s), "%d.%d.%d", major, minor, patch);
lua_pushstring(L, s);
return 0;
}
#define LUA_VIM_FN_CODE \
"vim.fn = setmetatable({}, {\n"\
" __index = function (t, key)\n"\
@@ -2298,6 +2319,8 @@ luaopen_vim(lua_State *L)
lua_newtable(L); // vim table
lua_pushvalue(L, 1); // cache table
luaV_openlib(L, luaV_module, 1);
luaV_pushversion(L);
lua_setfield(L, -2, "lua_version");
lua_setglobal(L, LUAVIM_NAME);
// custom code
(void)luaL_dostring(L, LUA_VIM_FN_CODE);