tame/tamer
Mike Gerwitz b084e23497 tamer: Refactor asg_builder into obj::xmlo::lower and asg::air
This finally uses `parse` all the way up to aggregation into the ASG, as can
be seen by the mess in `poc`.  This will be further simplified---I just need
to get this committed so that I can mentally get it off my plate.  I've been
separating this commit into smaller commits, but there's a point where it's
just not worth the effort anymore.  I don't like making large changes such
as this one.

There is still work to do here.  First, it's worth re-mentioning that
`poc` means "proof-of-concept", and represents things that still need a
proper home/abstraction.

Secondly, `poc` is retrieving the context of two parsers---`LowerContext`
and `Asg`.  The latter is desirable, since it's the final aggregation point,
but the former needs to be eliminated; in particular, packages need to be
worked into the ASG so that `found` can be removed.

Recursively loading `xmlo` files still happens in `poc`, but the compiler
will need this as well.  Once packages are on the ASG, along with their
state, that responsibility can be generalized as well.

That will then simplify lowering even further, to the point where hopefully
everything has the same shape (once final aggregation has an abstraction),
after which we can then create a final abstraction to concisely stitch
everything together.  Right now, Rust isn't able to infer `S` for
`Lower<S, LS>`, which is unfortunate, but we'll be able to help it along
with a more explicit abstraction.

DEV-11864
2022-05-27 13:51:29 -04:00
..
benches tamer: iter::trip: Flatten Result 2022-05-20 16:08:16 -04:00
build-aux Copyright year update 2022 2022-05-03 14:14:29 -04:00
src tamer: Refactor asg_builder into obj::xmlo::lower and asg::air 2022-05-27 13:51:29 -04:00
.gitignore TAMER: Initial commit 2019-11-18 14:05:47 -05:00
Cargo.lock tamer: diagnostic: Column resolution 2022-04-21 14:27:36 -04:00
Cargo.toml tamer: Remove wip-frontends feature flag 2022-05-04 09:37:10 -04:00
Makefile.am Copyright year update 2022 2022-05-03 14:14:29 -04:00
README.md Copyright year update 2022 2022-05-03 14:14:29 -04:00
autogen.sh Copyright year update 2022 2022-05-03 14:14:29 -04:00
bootstrap Copyright year update 2022 2022-05-03 14:14:29 -04:00
configure.ac Copyright year update 2022 2022-05-03 14:14:29 -04:00
rustfmt.toml tamer/rustfmt (max_width): Set to 80 2019-11-27 09:15:15 -05:00

README.md

TAME in Rust (TAMER)

TAME was written to help tame the complexity of developing comparative insurance rating systems. This project aims to tame the complexity and performance issues of TAME itself. TAMER is therefore more tame than TAME.

TAME was originally written in XSLT. For more information about the project, see the parent README.md.

Building

To bootstrap from the source repository, run ./bootstrap.

To configure the build for your system, run ./configure. To build, run make. To run tests, run make check.

You may also invoke cargo directly, which make will do for you using options provided to configure.

Note that the default development build results in terrible runtime performance! See [#Build Flags][] below for instructions on how to generate a release binary.

Build Flags

The environment variable CARGO_BUILD_FLAGS can be used to provide additional arguments to cargo build when invoked via make. This can be provided optionally during configure and can be overridden when invoking make. For example:

# release build
$ ./configure && make CARGO_BUILD_FLAGS=--release
$ ./configure CARGO_BUILD_FLAGS=--release && make

# dev build
$ ./configure && make
$ ./configure CARGO_BUILD_FLAGS=--release && make CARGO_BUILD_FLAGS=

Hacking

This section contains advice for those developing TAMER.

Running Tests

Developers should be using test-driven development (TDD). make check will run all necessary tests.

Code Format

Rust provides rustfmt that can automatically format code for you. This project mandates its use and therefore eliminates personal preference in code style (for better or worse).

Formatting checks are run during make check and, on failure, will output the diff that would be applied if you ran make fmt (or make fix); this will run cargo fmt for you (and will use the binaries configured via configure).

Since developers should be doing test-driven development (TDD) and therefore should be running make check frequently, the hope is that frequent feedback on formatting issues will allow developers to quickly adjust their habits to avoid triggering formatting errors at all.

If you want to automatically fix formatting errors and then run tests:

$ make fmt check

Benchmarking

Benchmarks serve two purposes: external integration tests (which are subject to module visibility constraints) and actual benchmarking. To run benchmarks, invoke make bench.

Note that link-time optimizations (LTO) are performed on the binary for benchmarking so that its performance reflects release builds that will be used in production.

The configure script will automatically detect whether the test feature is unstable (as it was as of the time of writing) and, if so, will automatically fall back to invoking nightly (by running cargo +nightly bench).

If you do not have nightly, run you install it via rustup install nightly.