XSD to Rust code generator for ISO 20022 message types.

This crate reads ISO 20022 XSD schema files and generates idiomatic Rust type definitions suitable for serialization with quick-xml and serde.

Architecture

1. xsd — Parse XSD files into an AST ([xsd::Schema]).
2. ir — Lower the AST into a typed intermediate representation ([ir::TypeGraph]).
3. emit — Render the IR to formatted Rust source code.

Quick start

use mx20022_codegen::{xsd, ir, emit};

let schema = xsd::parse_str(r#"<xs:schema
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    targetNamespace="urn:example">
  <xs:element name="Root" type="RootType"/>
  <xs:complexType name="RootType">
    <xs:sequence>
      <xs:element name="Id" type="xs:string"/>
    </xs:sequence>
  </xs:complexType>
</xs:schema>"#).unwrap();

let graph = ir::lower(&schema).unwrap();
let rust_source = emit::emit(&graph);
println!("{rust_source}");