Module codec 

Codec core (spec §8–§15): pure functions over crate::desc::PointDesc, no_std and allocation-free. Kept in behavioral lockstep with go/codec and moddef-ts’s codec (shared vector suite in the conformance tests).

Re-exports

pub use decode::decode;

pub use decode::decode_bytes;

pub use decode::decode_raw;

pub use decode::decode_str;

pub use decode::Ctx;

pub use encode::encode;

pub use encode::encode_bytes;

pub use encode::encode_str;

pub use encode::validate_write;

Modules

decode

Point decoder (spec §8–§15), allocation-free. Port of go/codec/decode.go and moddef-ts decode.ts (incl. §10.5 selector cases with transform fallback), operating on PointDesc.

encode

Point encoder (spec §10 inverse, §11.4/§11.5), allocation-free. Port of go/codec/encode.go / moddef-ts encode.ts: composed values and packed field windows stay read-oriented.

Structs

Rat

Functions

assemble_u64

Assemble up to the last 8 normalized bytes into a big-endian u64 (equivalent of Go’s assemble + decodeUint over the trailing window).

mask_for

words_from_u64

Split a raw big-endian integer into out registers (inverse of assemble_u64); out.len() defines the width.