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luaur_vm/functions/
lua_tostringatom.rs

1use core::ffi::{c_char, c_int};
2
3use crate::functions::index_2_addr::index2addr;
4use crate::macros::getstr::getstr;
5use crate::macros::lua_s_updateatom::lua_s_updateatom;
6use crate::macros::tsvalue::tsvalue;
7use crate::macros::ttisstring::ttisstring;
8use crate::type_aliases::lua_state::lua_State;
9use crate::type_aliases::stk_id::StkId;
10
11#[allow(non_snake_case)]
12pub unsafe fn lua_tostringatom(L: *mut lua_State, idx: c_int, atom: *mut c_int) -> *const c_char {
13    let o: StkId = index2addr(L, idx);
14
15    if !ttisstring!(o) {
16        return core::ptr::null();
17    }
18
19    let s = tsvalue!(o);
20    if !atom.is_null() {
21        lua_s_updateatom!(L, s as *mut crate::records::t_string::TString);
22        *atom = (*s).atom as c_int;
23    }
24
25    getstr(s as *const crate::records::t_string::TString)
26}