Crate serde_json_core[−][src]

serde-json for no_std programs

This version of serde-json is aimed at applications that run on resource constrained devices.

Current features

  • The error type is a simple C like enum (less overhead, smaller memory footprint)
  • (De)serialization doesn't require memory allocations
  • Deserialization of integers doesn't go through u64; instead the string is directly parsed into the requested integer type. This avoids pulling in KBs of compiler intrinsics when targeting a non 64-bit architecture.
  • Supports deserialization of:
    • bool
    • Integers
    • str (This is a zero copy operation.) (*)
    • Option
    • Arrays
    • Tuples
    • Structs
    • C like enums
  • Supports serialization (compact format only) of:
    • bool
    • Integers
    • str (**)
    • Option
    • Arrays
    • Tuples
    • Structs
    • C like enums

(*) Deserialization of strings ignores escaped sequences. Escaped sequences might be supported in the future using a different Serializer as this operation is not zero copy.

(**) Serialization of strings doesn't escape stuff. This simply has not been implemented yet.

Planned features

  • (De)serialization from / into IO objects once core::io::{Read,Write} becomes a thing.

Non-features

This is explicitly out of scope

  • Anything that involves dynamic memory allocation
    • Like the dynamic Value type

Modules

de

Deserialize JSON data to a Rust data structure
ser

Serialize a Rust data structure into JSON data