Make extensions names constant

[nyovaya]

The 'name' functions from e.g. "ash::extensions::khr::Surface" and other extensions should be const.

[Ralith]

This is not currently possible, as CStr::from_bytes_with_nul_unchecked is not const in stable rust.

[Friz64]

This is not currently possible, as CStr::from_bytes_with_nul_unchecked is not const in stable rust.

It is now.

[MaikKlein]

Oh nice, I've totally missed that. I'll fix it after I am done refactoring the generator.

[Friz64]

Additionally, this issue is pretty much the same as #79.

[MaikKlein]

Yeah closing this in favor of #79

[Ralith]

It is now.

It is not. The nightly feature in question is const_cstr_unchecked. rustdoc displays the const qualifier erroneously.

[Friz64]

Oh wow, i didn't know that rustdoc is not to trust sometimes.

[Friz64]

I guess we can still make it happen by copying the implementation of from_bytes_with_nul_unchecked.

pub const unsafe fn from_bytes_with_nul_unchecked(bytes: &[u8]) -> &CStr {
    &*(bytes as *const [u8] as *const CStr)
}

[Ralith]

If it were that simple it would already be stable:

error[E0658]: dereferencing raw pointers in constant functions is unstable

[Friz64]

Oh, i thought it was some weird thing where a perfectly working function is still not stable.