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luaur_vm/functions/
lua_b_inext.rs

1use crate::enums::lua_type::lua_Type;
2use crate::functions::lua_l_checkinteger::luaL_checkinteger;
3use crate::functions::lua_l_checktype::lua_l_checktype;
4use crate::functions::lua_pushinteger::lua_pushinteger;
5use crate::functions::lua_rawgeti::lua_rawgeti;
6use crate::macros::lua_isnil::lua_isnil;
7use crate::type_aliases::lua_state::lua_State;
8
9#[no_mangle]
10pub unsafe fn lua_b_inext(l: *mut lua_State) -> i32 {
11    let mut i = luaL_checkinteger(l, 2);
12    lua_l_checktype(l, 1, lua_Type::LUA_TTABLE as core::ffi::c_int);
13    i += 1; // next value
14    lua_pushinteger(l, i);
15    lua_rawgeti(l, 1, i);
16
17    if lua_isnil!(l, -1) {
18        0
19    } else {
20        2
21    }
22}