Daml Codegen

A library and a tool for generating Rust types from daml code.

This crate provides:

A code generator backend for the of custom attributes and procedural macros defined in the daml-derive crate
A daml_codegen function which is designed to be used from build.rs files
A standalone codegen cli tool

Library

This crate should not be used directly when used as a library, instead you should depend on the daml crate and enable the codegen feature:

[dependencies]
daml = { version = "0.3.0", features = [ "codegen" ] }

Install

cargo install daml-codegen

Usage

Daml GRPC Ledger API Code Generator

Usage: daml-codegen [OPTIONS] <dar>

Arguments:
  <dar>  Path to the input DAR file

Options:
  -o, --output-dir <output>        Output directory (default: '.')
  -f, --module-filter <filter>...  Regex(es) matched against fully-qualified module names
                                   (e.g. 'MyPackage\.Foo\..*'). Only modules matching any
                                   of the regexes are emitted; without --module-filter,
                                   every module is emitted.
  -i, --render-intermediate        Render an intermediate representation instead of the
                                   full Rust types (debugging aid)
  -c, --combine-modules            Emit one Rust file per DAR (default: one file per module)
  -h, --help                       Print help
  -V, --version                    Print version

Example

To generate Rust types from MyModel.dar combined into a single output file under src/autogen/:

daml-codegen MyModel.dar --combine-modules -o src/autogen

License

daml-codegen is distributed under the terms of the Apache License (Version 2.0).

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in time by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.