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luaur_vm/functions/
lua_call.rs

1//! Node: `cxx:Function:Luau.VM:VM/src/lapi.cpp:1082:lua_call`
2//! Source: `VM/src/lapi.cpp:1082-1092` (hand-ported)
3
4use core::ffi::c_int;
5
6use crate::functions::lua_d_call::lua_d_call;
7use crate::macros::api_check::api_check;
8use crate::macros::api_checknelems::api_checknelems;
9use crate::macros::lua_multret::LUA_MULTRET;
10use crate::type_aliases::lua_state::lua_State;
11use crate::type_aliases::stk_id::StkId;
12
13#[allow(non_snake_case)]
14pub unsafe fn lua_call(L: *mut lua_State, nargs: c_int, nresults: c_int) {
15    api_check!(L, nargs >= 0);
16    api_check!(L, nresults >= LUA_MULTRET);
17    api_checknelems!(L, nargs + 1);
18    api_check!(L, (*L).status == 0);
19    api_check!(
20        L,
21        nresults == LUA_MULTRET
22            || (*(*L).ci).top.offset_from((*L).top) >= (nresults - nargs) as isize
23    );
24
25    let func: StkId = (*L).top.sub((nargs + 1) as usize);
26    lua_d_call(L, func, nresults);
27
28    if nresults == LUA_MULTRET && (*L).top >= (*(*L).ci).top {
29        (*(*L).ci).top = (*L).top;
30    }
31}