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luaur_vm/functions/
lua_b_next.rs

1use crate::enums::lua_type::lua_Type;
2use crate::functions::lua_l_checktype::lua_l_checktype;
3use crate::functions::lua_next::lua_next;
4use crate::functions::lua_pushnil::lua_pushnil;
5use crate::functions::lua_settop::lua_settop;
6use crate::type_aliases::lua_state::lua_State;
7use core::ffi::c_int;
8
9#[no_mangle]
10pub unsafe fn lua_b_next(L: *mut lua_State) -> c_int {
11    lua_l_checktype(L, 1, lua_Type::LUA_TTABLE as c_int);
12    lua_settop(L, 2);
13
14    if lua_next(L, 1) != 0 {
15        2
16    } else {
17        lua_pushnil(L);
18        1
19    }
20}