Mike Gerwitz
76beb117f9
Also: Revert "tamer: nir::desugar::interp: Token {SPair=>Attr}"
This reverts commit 7fd60d6cdafaedc19642a3f10dfddfa7c7ae8f53.
This reverts commit 12a008c66414c3d628097e503a98c80687e3c088.
This has been quite a tortured experience, trying to figure out how to best
fit desugaring into the existing system. The truth is that it ultimately
failed because I was not sticking with my intuition---I was trying to get
things out quickly by compromising on the design, and in the end, it saved
me nothing.
But I wouldn't say that it was a waste of time---the path was a dead end,
but it was full of experiences.
More to come, but interpolation is back to operating on NIR directly, and I
chose to treat it as a source-to-source mapping and not represent it using
the type system---interpolation can be an optional feature when writing TAME
frontends (the principal one being the XML-based one), and it's up to later
checks to assert that identifiers match a given domain.
I am disappointed by the additional context we lose here, but that can
always be introduced in the future differently, e.g. by maintaining a
dictionary of additional context for spans that can be later referenced for
diagnostic purposes. But let's worry about that in the future; it doesn't
make sense to further complicate IRs for such a thing.
DEV-13346
|
||
|---|---|---|
| .. | ||
| benches | ||
| build-aux | ||
| src | ||
| .gitignore | ||
| Cargo.lock | ||
| Cargo.toml | ||
| Makefile.am | ||
| README.md | ||
| autogen.sh | ||
| bootstrap | ||
| configure.ac | ||
| rustfmt.toml | ||
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.