luaur_common/macros/
luau_assert.rs

1#[allow(non_snake_case)]
2#[macro_export]
3macro_rules! LUAU_ASSERT {
4    ($expr:expr) => {
5        if $crate::macros::luau_assertenabled::LUAU_ASSERTENABLED {
6            if !($expr) {
7                // `assertCallHandler` takes C strings; `stringify!`/`file!`
8                // produce string literals, so nul-terminate them to hand over a
9                // valid `*const c_char`. (`__FUNCTION__` has no stable Rust
10                // equivalent, so the function name is a placeholder.)
11                $crate::functions::assert_call_handler::assert_call_handler(
12                    concat!(stringify!($expr), "\0").as_ptr() as *const core::ffi::c_char,
13                    concat!(file!(), "\0").as_ptr() as *const core::ffi::c_char,
14                    line!() as i32,
15                    c"unknown".as_ptr(),
16                );
17                $crate::LUAU_DEBUGBREAK!();
18            }
19        }
20    };
21    // Tolerant 2-arg form: the C++ `LUAU_ASSERT(cond && "message")` idiom (and
22    // `LUAU_ASSERT(!"message")`) routinely lands from the model as a two-token
23    // call `LUAU_ASSERT!(cond, "message")`. Accept it — assert the condition and
24    // carry the message into the assertion text — rather than fail compilation
25    // over a separator. Mirrors the trailing-comma / camelCase tolerances the
26    // foundation already grants machine translations.
27    ($expr:expr, $msg:expr) => {
28        if $crate::macros::luau_assertenabled::LUAU_ASSERTENABLED {
29            if !($expr) {
30                $crate::functions::assert_call_handler::assert_call_handler(
31                    concat!(stringify!($expr), " : ", stringify!($msg), "\0").as_ptr()
32                        as *const core::ffi::c_char,
33                    concat!(file!(), "\0").as_ptr() as *const core::ffi::c_char,
34                    line!() as i32,
35                    c"unknown".as_ptr(),
36                );
37                $crate::LUAU_DEBUGBREAK!();
38            }
39        }
40    };
41}
42
43pub use LUAU_ASSERT;
luaur_common/macros/luau_assert.rs

luaur_common/macros/
luau_assert.rs
