tame/tamer
Mike Gerwitz 8c4923274a tamer: ld::xmle::lower: Diagnostic message for cycles
This moves the special handling of circular dependencies out of
`poc.rs`---and to be clear, everything needs to be moved out of there---and
into the source of the error.  The diagnostic system did not exist at the
time.

This is one example of how easy it will be to create robust diagnostics once
we have the spans on the graph.  Once the spans resolve to the proper source
locations rather than the `xmlo` file, it'll Just Work.

It is worth noting, though, that this detection and error will ultimately
need to be moved so that it can occur when performing other operation on the
graph during compilation, such as type inference and unification.  I don't
expect to go out of my way to detect cycles, though, since the linker will.

DEV-13430
2022-12-16 15:09:05 -05:00
..
benches tamer: asg: Associate spans with identifiers and introduce diagnostics 2022-12-16 14:44:38 -05:00
build-aux Copyright year update 2022 2022-05-03 14:14:29 -04:00
src tamer: ld::xmle::lower: Diagnostic message for cycles 2022-12-16 15:09:05 -05:00
.gitignore TAMER: Initial commit 2019-11-18 14:05:47 -05:00
Cargo.lock tamer: Cargo.toml: Remove lazy_static 2022-06-24 14:18:04 -04:00
Cargo.toml tamer: Cargo.toml: Sort dependencies 2022-10-18 14:48:14 -04:00
Makefile.am tamer: Make RUSTFLAGS explicit in the cargo invocation 2022-12-16 14:44:39 -05:00
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 tamer: Remove int_log feature flag (stabalized in 1.68-nightly) 2022-12-16 14:44:39 -05:00
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.