Crate motto 

Motto - Compiler-as-a-Service for Multi-Platform SDK Generation

Motto transforms Rust schema.rs files into platform-specific SDK toolkits with a unified Single Source of Truth architecture.

Architecture

1. Static Analysis Frontend - Parses Rust AST using syn to extract structs and enums annotated for serialization. Computes SHA-256 fingerprint.

2. Intermediate Representation (IR) - Language-agnostic JSON/BSON manifest with field offsets and bit-alignment requirements for Bitcode backend.

3. Backend Emitters - Generate platform-specific code:

   • TypeScript/WASM (ESM with wasm-bindgen or napi-rs)
   • Swift (iOS/macOS native)
   • Kotlin (Android/JVM native)
   • Unity (C# with unsafe DllImport)

4. Runtime - Bundled with SDK: bitcode, zstd, state machine, retry logic, WebTransport.

Re-exports

pub use core::fingerprint::SchemaFingerprint;

pub use core::parser::SchemaParser;

pub use ir::generator::IrGenerator;

pub use ir::manifest::SchemaManifest;

Modules

core

Core module - Static Analysis Frontend

emitters

Backend Emitters Module

ir

Intermediate Representation (IR) Module

prelude

Re-export commonly used types

runtime

Runtime Module

Constants

PROTOCOL_VERSION_BYTE

Protocol version byte (derived from minor version of motto.lock) This is embedded in all generated packets for sidecar routing

VERSION

Version information derived from Cargo.toml