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luaur_vm/functions/
lua_l_callmeta.rs

1use crate::functions::lua_call::lua_call;
2use crate::functions::lua_l_getmetafield::lua_l_getmetafield;
3use crate::functions::lua_pushvalue::lua_pushvalue;
4use crate::macros::abs_index::abs_index;
5use crate::type_aliases::lua_state::lua_State;
6use core::ffi::{c_char, c_int};
7
8#[export_name = "luaur_lua_l_callmeta"]
9pub unsafe fn lua_l_callmeta(L: *mut lua_State, obj: c_int, event: *const c_char) -> c_int {
10    let obj = abs_index(L, obj);
11    if lua_l_getmetafield(L, obj, event) == 0 {
12        return 0;
13    }
14
15    lua_pushvalue(L, obj);
16    lua_call(L, 1, 1);
17    1
18}