Commit Graph

10 Commits (3587d032c368ffb66d4719090139ea493192cd3d)

Author SHA1 Message Date
Mike Gerwitz 9990be58a7 tamer: Lower sum expressions
This was a fairly simple addition, since rate blocks already lower into sum
expressions; these are just non-identified.

This does emphasize that the nir::parse `ele_parse!` abstraction I spent so
much time on ended up not being a perfect fit, as it now has some
boilerplate after it was stripped of much of its capabilities some time ago.

Don't worry, `nir::air` and `asg::graph::xmli` will get cleaned up.

DEV-13708
2023-03-10 14:27:58 -05:00
Mike Gerwitz 82915f11af tamer: asg::graph::object::xir: Initial rate element reconstruction
This extends the POC a bit by beginning to reconstruct rate blocks (note
that NIR isn't producing sub-expressions yet).

Importantly, this also adds the first system tests, now that we have an
end-to-end system.  This not only gives me confidence that the system is
producing the expected output, but serves as a compromise: writing unit or
integration tests for this program derivation would be a great deal of work,
and wouldn't even catch the bugs I'm worried most about; the lowering
operation can be written in such a way as to give me high confidence in its
correctness without those more granular tests, or in conjunction with unit
or integration tests for a smaller portion.

DEV-13708
2023-03-10 14:27:58 -05:00
Mike Gerwitz 95272c4593 tamer: tests: System test support
This provides a test harness for running shell-based system tests.  The
first of such tests will be introduced in the following commit.

This is done in place of integration tests written in Rust because it will
invoke the final binary exactly as the user or build system (using TAMER)
will, providing greater confidence.  Besides, a lot of things are simply
more convenient to do in shell.  ...though some of you may debate that.

DEV-13708
2023-03-10 14:27:58 -05:00
Mike Gerwitz fd1b1527d6 tamer: Remove tests invoking cargo and associated libs
There are a number of reasons for this, where the benefits do not make up
for the losses.

First: this is actually invoking cargo.  Not only is this not necessary, but
it's not desirable: cargo by default hits the network and does all sorts of
other stuff, when all we want to do is invoke the executable.  So the tests
aren't really testing the right thing in that sense.  See the previous
commit for more information.

The way it invokes cargo is different than the way the Makefile invokes
cargo, so on my system, it's actually invoking a _different cargo_!  This is
causing problems, in particular with lock files, which causes my tests to
fail.

Importantly, this also removes a _lot_ of dependencies, which removes a lot
of supplier chain risk and a lot of code to audit.  This provides
significant security benefits, especially given that what was being tested
was rather small, and could be done in a shell script.

TAMER will receive significant system testing later on.  But for now, none
of this was worth it.

Further audits of dependencies will come later on.  I've always been fairly
insistent on keeping the dependency graph small and auditable, but recent
supply chain attacks have given me a better way to rationalize the security
risk.  Further, I'm the only one on this project right now.
2021-12-02 12:38:06 -05:00
Mike Gerwitz 2e50af1220 Copyright year update 2021 2021-07-22 15:00:15 -04:00
Joseph Frazer 43d00a8268 [DEV-7504] Add GraphML generation
We want to be able to build a representation of the dependency graph so
we can easily inspect it.

We do not want to make GraphML by default. It is better to use a tool.
We use "petgraph-graphml".
2020-05-13 08:04:48 -04:00
Joseph Frazer 2c587e2d9d [DEV-7147] Add "tamec" executable
Add a stub executable that will eventually become a full-featured TAME
compiler. The first implementation will only copy the source file to an
intermediary file that will be compiled by the XSLT compiler.
2020-04-09 09:46:46 -04:00
Joseph Frazer 590245e191 [DEV-7134] Escalate the error from finding the absolute path
We do not want to have a panic here. The error should be displayed
properly.
2020-03-06 12:24:45 -05:00
Mike Gerwitz bfea768f89 Copyright year 2020 update 2020-03-06 11:05:18 -05:00
Joseph Frazer e613bd8a8c [DEV-7081] Add options to tameld
We want to add an option to set the output file to the linker so we do
not need to redirect output to awk any longer.

This also adds integration tests for tameld.
2020-03-06 09:41:55 -05:00