tame/tamer
Mike Gerwitz 77c18d0615 tamer: xir: Remove Attr::Extensible
This removes XIRT support for attribute fragments.  The reason is that
because this is a write-only operation---fragments are used to concatenate
SymbolIds without reallocation, which can only happen if we are generating
XIR internally.

Given that this cannot happen during read, it was a mistake to complicate
the parsers.  But it makes sense why I did originally, given that the XIRT
parser was written for simplifying test cases.  But now that we want parsers
for real, and are writing production-quality parsers, this extra complexity
is very undesirable.

As a bonus, we also avoid any potential for heap allocations related to
attributes.  Granted, they didn't _really_ exist to begin with, but it was
part of XIRT, and was ugly.

DEV-11268
2021-12-06 14:26:58 -05:00
..
benches tamer: xir: Remove Text enum 2021-11-15 23:47:14 -05:00
build-aux Copyright year update 2021 2021-07-22 15:00:15 -04:00
src tamer: xir: Remove Attr::Extensible 2021-12-06 14:26:58 -05:00
.gitignore TAMER: Initial commit 2019-11-18 14:05:47 -05:00
Cargo.lock tamer: Remove tests invoking cargo and associated libs 2021-12-02 12:38:06 -05:00
Cargo.toml tamer: Remove tests invoking cargo and associated libs 2021-12-02 12:38:06 -05:00
Makefile.am tamer: cargo --frozen --offline 2021-12-02 11:49:51 -05:00
README.md Copyright year update 2021 2021-07-22 15:00:15 -04:00
autogen.sh Copyright year update 2021 2021-07-22 15:00:15 -04:00
bootstrap tamer: cargo --frozen --offline 2021-12-02 11:49:51 -05:00
configure.ac tamer: cargo --frozen --offline 2021-12-02 11:49:51 -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.