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luaur_analysis/functions/
create_negation.rs

1use crate::functions::alloc_type_user_data::alloc_type_user_data;
2use crate::functions::get_tag::get_tag;
3use crate::functions::get_type_function_runtime_alt_o::get_type_function_type_id;
4use crate::functions::get_type_user_data::get_type_user_data;
5use crate::records::type_function_function_type::TypeFunctionFunctionType;
6use crate::records::type_function_negation_type::TypeFunctionNegationType;
7use crate::records::type_function_table_type::TypeFunctionTableType;
8use crate::type_aliases::lua_state::lua_State;
9use crate::type_aliases::type_function_type_variant::TypeFunctionTypeVariant;
10use luaur_vm::functions::lua_gettop::lua_gettop;
11use luaur_vm::functions::lua_l_error_l::lua_l_error_l;
12
13#[allow(non_snake_case)]
14pub unsafe fn create_negation(l: *mut lua_State) -> core::ffi::c_int {
15    let vm_l = l as *mut luaur_vm::records::lua_state::lua_State;
16    let argument_count = lua_gettop(vm_l);
17    if argument_count != 1 {
18        lua_l_error_l(
19            vm_l,
20            c"%s".as_ptr(),
21            core::format_args!(
22                "types.negationof: expected 1 argument, but got {}",
23                argument_count
24            ),
25        );
26    }
27
28    let arg = get_type_user_data(l, 1);
29
30    let table_type_ptr = get_type_function_type_id::<TypeFunctionTableType>(arg);
31    let function_type_ptr = get_type_function_type_id::<TypeFunctionFunctionType>(arg);
32
33    if !table_type_ptr.is_null() || !function_type_ptr.is_null() {
34        let tag = get_tag(l, arg);
35        lua_l_error_l(
36            vm_l,
37            c"%s".as_ptr(),
38            core::format_args!(
39                "types.negationof: cannot perform negation on `{}` type",
40                tag
41            ),
42        );
43    }
44
45    let negation = TypeFunctionNegationType { type_id: arg };
46    alloc_type_user_data(l, TypeFunctionTypeVariant::Negation(negation), false);
47
48    1
49}