float-pigment-consistent-bincode 0.9.0

use alloc::vec::Vec;
use core::marker::PhantomData;

use crate::config::{Infinite, InternalOptions, Options, SizeLimit, TrailingBytes};
use crate::de::read::BincodeRead;
use crate::io::{Read, Write};
use crate::Result;

pub(crate) fn serialize_into<W, T: ?Sized, O>(
    writer: W,
    value: &T,
    mut options: O,
    sizes_list: Vec<u32>,
) -> Result<()>
where
    W: Write,
    T: serde::Serialize,
    O: InternalOptions,
{
    if options.limit().limit().is_some() {
        // "compute" the size for the side-effect
        // of returning Err if the bound was reached.
        serialized_size(value, &mut options)?;
    }

    let mut serializer = crate::ser::Serializer::<_, O>::new(writer, options, sizes_list);
    serde::Serialize::serialize(value, &mut serializer)
}

pub(crate) fn serialize<T: ?Sized, O>(value: &T, mut options: O) -> Result<Vec<u8>>
where
    T: serde::Serialize,
    O: InternalOptions,
{
    let (actual_size, sizes_list) = serialized_size(value, &mut options)?;
    let mut writer = Vec::with_capacity(actual_size as usize);

    serialize_into(&mut writer, value, options.with_no_limit(), sizes_list)?;
    Ok(writer)
}

pub(crate) fn serialized_size<T: ?Sized, O: InternalOptions>(
    value: &T,
    options: O,
) -> Result<(u64, Vec<u32>)>
where
    T: serde::Serialize,
{
    let mut size_counter = crate::ser::SizeChecker {
        options,
        total: 0,
        sizes_list: vec![],
    };

    let result = value.serialize(&mut size_counter);
    result.map(|_| (size_counter.total, size_counter.sizes_list))
}

pub(crate) fn deserialize_from<R, T, O>(reader: R, options: O) -> Result<T>
where
    R: Read,
    T: serde::de::DeserializeOwned,
    O: InternalOptions,
{
    deserialize_from_seed(PhantomData, reader, options)
}

pub(crate) fn deserialize_from_seed<'a, R, T, O>(seed: T, reader: R, options: O) -> Result<T::Value>
where
    R: Read,
    T: serde::de::DeserializeSeed<'a>,
    O: InternalOptions,
{
    let reader = crate::de::read::IoReader::new(reader);
    deserialize_from_custom_seed(seed, reader, options)
}

pub(crate) fn deserialize_from_custom<'a, R, T, O>(reader: R, options: O) -> Result<T>
where
    R: BincodeRead<'a>,
    T: serde::de::DeserializeOwned,
    O: InternalOptions,
{
    deserialize_from_custom_seed(PhantomData, reader, options)
}

pub(crate) fn deserialize_from_custom_seed<'a, R, T, O>(
    seed: T,
    reader: R,
    options: O,
) -> Result<T::Value>
where
    R: BincodeRead<'a>,
    T: serde::de::DeserializeSeed<'a>,
    O: InternalOptions,
{
    let mut deserializer = crate::de::Deserializer::<_, O>::with_bincode_read(reader, options);
    seed.deserialize(&mut deserializer)
}

pub(crate) fn deserialize_in_place<'a, R, T, O>(reader: R, options: O, place: &mut T) -> Result<()>
where
    R: BincodeRead<'a>,
    T: serde::de::Deserialize<'a>,
    O: InternalOptions,
{
    let mut deserializer = crate::de::Deserializer::<_, _>::with_bincode_read(reader, options);
    serde::Deserialize::deserialize_in_place(&mut deserializer, place)
}

pub(crate) fn deserialize<'a, T, O>(bytes: &'a [u8], options: O) -> Result<T>
where
    T: serde::de::Deserialize<'a>,
    O: InternalOptions,
{
    deserialize_seed(PhantomData, bytes, options)
}

pub(crate) fn deserialize_seed<'a, T, O>(seed: T, bytes: &'a [u8], options: O) -> Result<T::Value>
where
    T: serde::de::DeserializeSeed<'a>,
    O: InternalOptions,
{
    let options = crate::config::WithOtherLimit::new(options, Infinite);

    let reader = crate::de::read::SliceReader::new(bytes);
    let mut deserializer = crate::de::Deserializer::with_bincode_read(reader, options);
    let val = seed.deserialize(&mut deserializer)?;

    match O::Trailing::check_end(&deserializer.reader) {
        Ok(_) => Ok(val),
        Err(err) => Err(err),
    }
}