10 releases

new 0.0.9 Oct 20, 2020
0.0.8 Oct 19, 2020

#129 in Development tools

Download history 57/week @ 2020-10-06 83/week @ 2020-10-13

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GPL-3.0 license

3.5K SLoC

yang 陽

Build Status

Yang is a rudimentary, experimental code generator. Yang is both used by, and depends on, Yin for code generation. See yin.md for an in-depth description of its internals.

This crate is named zamm_yang for consistency with zamm_yin. However, the name for this tool is just yang for all intents and purposes within the ZAMM universe.


cargo install yang


As a binary

yang 0.0.8
Amos Ng <me@amos.ng>
Code generator for Yin.

    yang <SUBCOMMAND>

    -h, --help       Prints help information
    -V, --version    Prints version information

    build    Generate code from an input file. 
    clean    Clean up autogenerated files.
    help     Prints this message or the help of the given subcommand(s)


See this project's very own yin.md for an example configuration file. Run

yang generate

and you can use the newly generated src/concepts/attributes/target.rs as in the example. Make sure to initialize the new Target concept on KB startup

As a library

If you're using a custom build script, chances are you will want to generate Yin concept files for your project directly rather than passing comamndline options to the yang binary. For example, to automatically generate the example file above at build time, first add yin and yang as build dependencies:

zamm_yin = "0.0.9"
zamm_yang = "0.0.8"

Then, define your build.rs as in the example, and your main.rs in the same way as above.


Note that due to Yang using its autogeneration capabilities on itself, it requires a pre-existing binary of itself in order to build its current version. The build.rs script will attempt to download one from Bintray if it isn't found locally. If none of the versions of Bintray are available for your platform, you can bootstrap Yang by building each version consecutively and setting the YANG_BINARY environment variable to the location of the newly built yang executable.


~96K SLoC