- title: Signed Files

text: |

Generated files are signed to prevent or detect manual modifications of

generated code; these files can then be regenerated with new content in

the future, or signatures can be disabled to generate 'skeleton' code,

if any future changes will be manual.

- title: Partially Generated Files

text: |

Generated code can be marked as containing manually-modifiable

sections; you can use hack-codegen to rewrite the rest of the file in

the future, and all manual sections will be left unmodified.

- title: Readable Output

text: |

All built-in features handle whitespace correctly, and it's easy to

integrate this into custom code.

- title: Extensible and Type-Safe Value Rendering

text: |

Hack Codegen can render any value as raw literal code or using

`var_export()`; additionally, there's built-in support for

pretty-printed collections, shapes, and `classname<T>`.

These can be nested arbitrarily for shapes and collections, and can

be extended by providing a lambda, or creating a class implementing the

key or value renderer interfaces.