d1to2fix

This is a simple tool based on libdparse to automatically perform some final conversion from D1 to D2.

Some of the conversions performed:

• Convert all delegates into scope delegates to reduce GC allocations from uncalled closures. For now aliased delegate types are not converted as it requires more complicated symbol processing. As a result, when an alias to a delegate is used as function parameter, /* d1to2fix_inject: scope */ should be used.
• Convert D1-style manifest constants (const Name = Value;) to enum in struct and static immutable everywhere else.
• Convert all this mentions inside struct bodies to pointers to match D1.
• Inject some D2 attributes based on special comments /* d1to2fix_inject: ... */ (only const, inout and scope supported for now).

Building

To build just type make or use dub directly. To build a Debian package type make deb (you need fpm for this to work though).

Docker

If you want to use Docker for testing without having to install all the dependencies in your personal environment, you can easily do so, an image definition is provided in the docker/ directory.

To build you can use docker build -t d1to2fix docker and then to run:

docker run -ti --rm -v $PWD:/d1to2fix -w /d1to2fix d1to2fix [<command>]

If you don't enter a <command> you'll get a shell inside the image to do whatever you want. Otherwise you can just do a one run of, for example, dub build inside Docker.

If you don't want to run stuff as root inside Docker, you can use a pre-defined docker user (UID 65456) with -u docker, but you'll have to make sure your files are accesible to that user.