Function nova_rt_str_concat 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn nova_rt_str_concat(
    a: *const NovaStr,
    b: *const NovaStr,
) -> *mut NovaStr

Concatenate two strings into a new string value.

GC safety: a’s and b’s bytes are read after the result’s buffer is allocated, kept alive across it as [gc_str_filled] describes.

Safety

a and b must be valid NovaStr pointers.