1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201
#![deny(missing_docs)]
#![allow(unknown_lints, bare_trait_objects, deprecated)]
//! Bincode is a crate for encoding and decoding using a tiny binary
//! serialization strategy. Using it, you can easily go from having
//! an object in memory, quickly serialize it to bytes, and then
//! deserialize it back just as fast!
//!
//! ### Using Basic Functions
//!
//! ```edition2018
//! fn main() {
//! // The object that we will serialize.
//! let target: Option<String> = Some("hello world".to_string());
//!
//! let encoded: Vec<u8> = bincode::serialize(&target).unwrap();
//! let decoded: Option<String> = bincode::deserialize(&encoded[..]).unwrap();
//! assert_eq!(target, decoded);
//! }
//! ```
//!
//! ### 128bit numbers
//!
//! Support for `i128` and `u128` is automatically enabled on Rust toolchains
//! greater than or equal to `1.26.0` and disabled for targets which do not support it
#![doc(html_root_url = "https://docs.rs/bincode/1.3.3")]
#![crate_name = "bincode"]
#![crate_type = "rlib"]
#![crate_type = "dylib"]
#[macro_use]
extern crate serde;
pub mod config;
/// Deserialize bincode data to a Rust data structure.
pub mod de;
mod byteorder;
mod error;
mod internal;
mod ser;
pub use config::{Config, DefaultOptions, Options};
pub use de::read::BincodeRead;
pub use de::Deserializer;
pub use error::{Error, ErrorKind, Result};
pub use ser::Serializer;
/// Get a default configuration object.
///
/// ### Default Configuration:
///
/// | Byte limit | Endianness |
/// |------------|------------|
/// | Unlimited | Little |
#[inline(always)]
#[deprecated(since = "1.3.0", note = "please use `options()` instead")]
pub fn config() -> Config {
Config::new()
}
/// Get a default configuration object.
///
/// **Warning:** the default configuration returned by this function
/// is not the same as that used by the other functions in this
/// module. See the
/// [config](config/index.html#options-struct-vs-bincode-functions)
/// module for more details
///
/// ### Default Configuration:
///
/// | Byte limit | Endianness | Int Encoding | Trailing Behavior |
/// |------------|------------|--------------|-------------------|
/// | Unlimited | Little | Varint | Reject |
#[inline(always)]
pub fn options() -> DefaultOptions {
DefaultOptions::new()
}
/// Serializes an object directly into a `Writer` using the default configuration.
///
/// If the serialization would take more bytes than allowed by the size limit, an error
/// is returned and *no bytes* will be written into the `Writer`.
///
/// **Warning:** the default configuration used by this function is not
/// the same as that used by the `DefaultOptions` struct. See the
/// [config](config/index.html#options-struct-vs-bincode-functions)
/// module for more details
pub fn serialize_into<W, T: ?Sized>(writer: W, value: &T) -> Result<()>
where
W: std::io::Write,
T: serde::Serialize,
{
DefaultOptions::new()
.with_fixint_encoding()
.serialize_into(writer, value)
}
/// Serializes a serializable object into a `Vec` of bytes using the default configuration.
///
/// **Warning:** the default configuration used by this function is not
/// the same as that used by the `DefaultOptions` struct. See the
/// [config](config/index.html#options-struct-vs-bincode-functions)
/// module for more details
pub fn serialize<T: ?Sized>(value: &T) -> Result<Vec<u8>>
where
T: serde::Serialize,
{
DefaultOptions::new()
.with_fixint_encoding()
.allow_trailing_bytes()
.serialize(value)
}
/// Deserializes an object directly from a `Read`er using the default configuration.
///
/// If this returns an `Error`, `reader` may be in an invalid state.
///
/// **Warning:** the default configuration used by this function is not
/// the same as that used by the `DefaultOptions` struct. See the
/// [config](config/index.html#options-struct-vs-bincode-functions)
/// module for more details
pub fn deserialize_from<R, T>(reader: R) -> Result<T>
where
R: std::io::Read,
T: serde::de::DeserializeOwned,
{
DefaultOptions::new()
.with_fixint_encoding()
.allow_trailing_bytes()
.deserialize_from(reader)
}
/// Deserializes an object from a custom `BincodeRead`er using the default configuration.
/// It is highly recommended to use `deserialize_from` unless you need to implement
/// `BincodeRead` for performance reasons.
///
/// If this returns an `Error`, `reader` may be in an invalid state.
///
/// **Warning:** the default configuration used by this function is not
/// the same as that used by the `DefaultOptions` struct. See the
/// [config](config/index.html#options-struct-vs-bincode-functions)
/// module for more details
pub fn deserialize_from_custom<'a, R, T>(reader: R) -> Result<T>
where
R: de::read::BincodeRead<'a>,
T: serde::de::DeserializeOwned,
{
DefaultOptions::new()
.with_fixint_encoding()
.allow_trailing_bytes()
.deserialize_from_custom(reader)
}
/// Only use this if you know what you're doing.
///
/// This is part of the public API.
#[doc(hidden)]
pub fn deserialize_in_place<'a, R, T>(reader: R, place: &mut T) -> Result<()>
where
T: serde::de::Deserialize<'a>,
R: BincodeRead<'a>,
{
DefaultOptions::new()
.with_fixint_encoding()
.allow_trailing_bytes()
.deserialize_in_place(reader, place)
}
/// Deserializes a slice of bytes into an instance of `T` using the default configuration.
///
/// **Warning:** the default configuration used by this function is not
/// the same as that used by the `DefaultOptions` struct. See the
/// [config](config/index.html#options-struct-vs-bincode-functions)
/// module for more details
pub fn deserialize<'a, T>(bytes: &'a [u8]) -> Result<T>
where
T: serde::de::Deserialize<'a>,
{
DefaultOptions::new()
.with_fixint_encoding()
.allow_trailing_bytes()
.deserialize(bytes)
}
/// Returns the size that an object would be if serialized using Bincode with the default configuration.
///
/// **Warning:** the default configuration used by this function is not
/// the same as that used by the `DefaultOptions` struct. See the
/// [config](config/index.html#options-struct-vs-bincode-functions)
/// module for more details
pub fn serialized_size<T: ?Sized>(value: &T) -> Result<u64>
where
T: serde::Serialize,
{
DefaultOptions::new()
.with_fixint_encoding()
.allow_trailing_bytes()
.serialized_size(value)
}