Mike Gerwitz
f1cf35f499
This introduces a number of abstractions, whose concepts are not fully documented yet since I want to see how it evolves in practice first. This introduces the concept of edge ontology (similar to a schema) using the type system. Even though we are not able to determine what the graph will look like statically---since that's determined by data fed to us at runtime---we _can_ ensure that the code _producing_ the graph from those data will produce a graph that adheres to its ontology. Because of the typed `ObjectIndex`, we're also able to implement operations that are specific to the type of object that we're operating on. Though, since the type is not (yet?) stored on the edge itself, it is possible to walk the graph without looking at node weights (the `ObjectContainer`) and therefore avoid panics for invalid type assumptions, which is bad, but I don't think that'll happen in practice, since we'll want to be resolving nodes at some point. But I'll addres that more in the future. Another thing to note is that walking edges is only done in tests right now, and so there's no filtering or anything; once there are nodes (if there are nodes) that allow for different outgoing edge types, we'll almost certainly want filtering as well, rather than panicing. We'll also want to be able to query for any object type, but filter only to what's permitted by the ontology. DEV-13160 |
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| Makefile.am | ||
| README.md | ||
| autogen.sh | ||
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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.