Found neat way to run compile-time assertions for generic type params

[AngelicosPhosphoros]

https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=50be29638d90a53122b59d7da0cbecf3

pub fn check<T: Sized>(){
    trait CheckableIfTooBigForStack: Sized{
        const IS_TOO_BIG: bool = 
            // Use 1 KiB.
            std::mem::size_of::<Self>() > 1024;
        
        // Compile error can be triggered by `let _ = T::TRIGGER_COMPILE_CHK;`
        const TRIGGER_COMPILE_CHK: u8 = if Self::IS_TOO_BIG {
            panic!("Type is too big")
        }
        else{
            0
        };
    }
    
    impl<T, const N: usize> CheckableIfTooBigForStack for [T; N]{}
    
    let _ = <[T;1024] as CheckableIfTooBigForStack>::TRIGGER_COMPILE_CHK;
}

pub fn two_checks(){
    check::<i8>();
    check::<i64>();
}

Error:

error[[E0080]](https://doc.rust-lang.org/stable/error-index.html#E0080): evaluation of `<[i64; 1024] as check::CheckableIfTooBigForStack>::TRIGGER_COMPILE_CHK` failed
  --> src/lib.rs:11:13
   |
11 |             panic!("Type is too big")
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'Type is too big', src/lib.rs:11:13
   |
   = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)

note: the above error was encountered while instantiating `fn check::<i64>`
  --> src/lib.rs:25:5
   |
25 |     check::<i64>();
   |     ^^^^^^^^^^^^^^

For more information about this error, try `rustc --explain E0080`.
error: could not compile `playground` due to previous error

AFAIK, your crate currently cannot check generic type parameters and I help that this example would help you to make it available.