Crate truefix_core 

truefix-core — FIX message model, field types, and the SOH wire codec.

Provides Field, FieldMap, Group, and Message (header/body/trailer), plus encode/decode that compute and verify BodyLength (tag 9) and CheckSum (tag 10). All parsing returns typed errors and never panics (Constitution Principle I).

Repeating-group structure is modelled here; dictionary-driven group parsing from a flat wire message arrives with truefix-dict (Stage S4). At this layer, decoding yields flat ordered fields, which still round-trips byte-for-byte.

Design: specs/001-fix-engine-parity/.

Re-exports

pub use codec::decode;

pub use codec::decode_with_groups;

pub use codec::encode;

pub use codec::encode_with_order;

pub use codec::restructure_groups;

pub use cracker::MessageCracker;

pub use error::BusinessReject;

pub use error::DecodeError;

pub use error::DoNotSend;

pub use error::FieldError;

pub use error::Reject;

pub use factory::MessageFactory;

pub use field::Field;

pub use field_map::FieldMap;

pub use field_map::MemberRef;

pub use framing::MAX_BODY_LEN;

pub use framing::frame_length;

pub use group::Group;

pub use group::GroupSpec;

pub use message::Message;

pub use tags::SOH;

Modules

codec

The SOH wire codec: encode and decode.

cracker

Typed message dispatch contract.

error

Typed errors for the core layer. No code path panics (Constitution Principle I).

factory

Message construction contract.

field

FIX fields and their typed value converters.

field_map

An ordered collection of fields and nested repeating groups.

framing

Extract complete FIX messages from a byte stream.

group

Repeating-group builder.

message

A FIX message: header, body, and trailer field maps.

tags

Standard FIX tag numbers and header/trailer classification (version-agnostic core set).