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#![allow(unused)]
use std::{any::type_name, mem};
use anyhow::Error;
use bytecheck::CheckBytes;
use rkyv::{with::AsBox, Archive, Deserialize, Serialize};
use crate::{syntax_pos::Mark, SyntaxContext};
#[derive(Debug, Clone, PartialEq, Eq)]
#[non_exhaustive]
#[cfg_attr(
feature = "plugin-base",
derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
)]
#[cfg_attr(
feature = "plugin-base",
archive_attr(repr(u32), derive(bytecheck::CheckBytes))
)]
pub enum PluginError {
SizeInteropFailure(String),
Deserialize(String),
Serialize(String),
}
pub struct Serialized {
field: rkyv::AlignedVec,
}
#[cfg(feature = "plugin-base")]
impl Serialized {
pub fn new_for_plugin(bytes: &[u8], len: i32) -> Serialized {
let mut vec = rkyv::AlignedVec::with_capacity(
len.try_into()
.expect("Cannot determine size of the serialized bytes"),
);
vec.extend_from_slice(bytes);
Serialized { field: vec }
}
pub fn from(vec: rkyv::AlignedVec) -> Serialized {
Serialized { field: vec }
}
pub fn into<T>(self) -> T
where
T: rkyv::Archive,
T::Archived: rkyv::Deserialize<T, rkyv::de::deserializers::SharedDeserializeMap>,
{
Serialized::deserialize(&self).expect("Should able to deserialize")
}
#[allow(clippy::should_implement_trait)]
pub fn as_ref(&self) -> &rkyv::AlignedVec {
&self.field
}
pub fn serialize<W>(t: &W) -> Result<Serialized, Error>
where
W: rkyv::Serialize<rkyv::ser::serializers::AllocSerializer<512>>,
{
rkyv::to_bytes::<_, 512>(t)
.map(Serialized::from)
.map_err(|err| match err {
rkyv::ser::serializers::CompositeSerializerError::SerializerError(e) => e.into(),
rkyv::ser::serializers::CompositeSerializerError::ScratchSpaceError(e) => {
Error::msg("AllocScratchError")
}
rkyv::ser::serializers::CompositeSerializerError::SharedError(e) => {
Error::msg("SharedSerializeMapError")
}
})
}
pub fn deserialize<W>(bytes: &Serialized) -> Result<W, Error>
where
W: rkyv::Archive,
W::Archived: rkyv::Deserialize<W, rkyv::de::deserializers::SharedDeserializeMap>,
{
use anyhow::Context;
use rkyv::Deserialize;
let bytes = &bytes.field;
let archived = unsafe { rkyv::archived_root::<W>(&bytes[..]) };
archived
.deserialize(&mut rkyv::de::deserializers::SharedDeserializeMap::new())
.with_context(|| format!("failed to deserialize `{}`", type_name::<W>()))
}
pub unsafe fn deserialize_from_ptr<W>(
raw_allocated_ptr: *const u8,
raw_allocated_ptr_len: i32,
) -> Result<W, Error>
where
W: rkyv::Archive,
W::Archived: rkyv::Deserialize<W, rkyv::de::deserializers::SharedDeserializeMap>,
{
let raw_ptr_bytes = unsafe {
std::slice::from_raw_parts(raw_allocated_ptr, raw_allocated_ptr_len.try_into()?)
};
let serialized = Serialized::new_for_plugin(raw_ptr_bytes, raw_allocated_ptr_len);
Serialized::deserialize(&serialized)
}
pub unsafe fn deserialize_from_ptr_fallible<W>(
raw_allocated_ptr: *const u8,
raw_allocated_ptr_len: i32,
) -> Result<W, Error>
where
W: rkyv::Archive,
W::Archived: rkyv::Deserialize<W, rkyv::de::deserializers::SharedDeserializeMap>,
{
let raw_ptr_bytes = unsafe {
std::slice::from_raw_parts(raw_allocated_ptr, raw_allocated_ptr_len.try_into()?)
};
let serialized = Serialized::new_for_plugin(raw_ptr_bytes, raw_allocated_ptr_len);
unsafe {
rkyv::from_bytes_unchecked(serialized.as_ref())
.map_err(|err| Error::msg("Failed to deserialize given ptr"))
}
}
}
#[derive(Archive, Deserialize, Serialize)]
#[repr(transparent)]
#[archive_attr(repr(transparent), derive(CheckBytes))]
pub struct VersionedSerializable<T>(#[with(AsBox)] (u32, T));
impl<T> VersionedSerializable<T> {
pub fn new(value: T) -> Self {
VersionedSerializable((1, value))
}
pub fn version(&self) -> u32 {
self.0 .0
}
pub fn inner(&self) -> &T {
&self.0 .1
}
pub fn take(&mut self) -> T
where
T: Default,
{
mem::take(&mut self.0 .1)
}
}