Skipping Fields in Rkyv

skip_fields.md

I'm trying t skip some fields with rkyv but I have managed to get it working yet. Frankly I don't want to think too much about it right now so I will be temporarily using bincode. I still believe in rkyv but it may not be ready yet for my use-case. I will keep it in my backlog to reimplement ser-de in rkyv.

use bytecheck::CheckBytes;
use llvm_sys::{
    target::{LLVM_InitializeNativeAsmPrinter, LLVM_InitializeNativeTarget},
    LLVMModule,
};
use rkyv::{
    with::{ArchiveWith, DeserializeWith, SerializeWith},
    Fallible, Archive, Deserialize, Serialize
};

#[derive(Debug, Serialize, Deserialize, Archive)]
#[archive_attr(derive(CheckBytes, Debug))]
pub struct LLVM {
    #[with(Skip)]
    pub module: LLVMModule,
}


pub struct Skip;

impl<F> ArchiveWith<F> for Skip {
    type Archived = ();
    type Resolver = ();

    unsafe fn resolve_with(_: &F, _: usize, _: Self::Resolver, _: *mut Self::Archived) {}
}

impl<F, S: Fallible + ?Sized> SerializeWith<F, S> for Skip {
    fn serialize_with(_: &F, _: &mut S) -> Result<(), S::Error> {
        Ok(())
    }
}

impl<F: Skipper, D: Fallible + ?Sized> DeserializeWith<(), F, D> for Skip {
    fn deserialize_with(_: &(), _: &mut D) -> Result<F, D::Error> {
        Ok(F::skip())
    }
}

pub trait Skipper {
    fn skip() -> Self;
}

impl Skipper for LLVMModule {
    fn skip() -> Self {
        todo!()
        // Self {}
    }
}