This case is really acrobatic, because we are interfacing code compiled to
OCaml (from lcalc) with code from dcalc, and the two have a different
representation for default terms. It... seems to work though.
A more reasonable solution, if there are problems with this or it reveals too
fragile, would be to enforce interpreting at the lcalc level as soon as you want
to link compiled modules.
HandleExceptions only takes an array of exceptions, and returns Some if only one
of them is Some, None if they are all None, or raises a conflict error
otherwise.
The compilation of default terms then wraps this in a match (for the result of
HandleExceptions), and an if-then-else (for the justification-consequence in the
None case).
This avoids the complexity of having to handle thunked functions as arguments.
*Disclaimer*: This is intended for discussion
My impression is that the with-exceptions backend is to be superseded by the
without-exception backend, which is more general and more efficient. Therefore,
seeing the added complexity of maintaining the two in parallel, I see no good
reason to keep the with-exceptions version now that the equivalence of their
semantics have been proved.
It will also be nice to reduce divergences between the different backends ; and
this should make further simplifications possible (e.g. some thunkings may no
longer be needed)
Of course I am ready to hear arguments in favor of keeping it, be it in the mid-
or long-term.
This patch removes the `--avoid-exceptions` flag, making it the only option, and
the corresponding `with_exceptions` variant of the dcalc->lcalc translation. It
doesn't do further simplifications.
- more recent sedlex fixes a bug that needed a workaround in our code
- we need recent dates_calc to avoid extra runtime dependency on `Str` that our
build system won't handle
Not much there at the moment, but being able to specify the include directories
is already pretty useful to run clerk directly e.g. on `catala-examples`.
(you had to explicitely specify variable `CATALA_INCLUDE`, the `-I` flags or to
go through `make` without that)
This relies less on specific color flags of GNU diff, and reformats and
colorises the output.
(it may still depend on the specific layout of GNU diff with the `-y` flag
though)
First I was disappointed that we couldn't convert closure environment properly
because of their opaque nature (native/interpreted conversion is based on the
Catala types) ; but after more thought it's actually unnecessary to convert them
at all since we are guaranteed that they can't be consumed outside of their
realm.
it's much simpler to handle down the line if they have a uniform structure;
empty tuples are easily converted into unit types when translating to OCaml.
This avoids differences in test results depending on wether closure conversion
is enabled or not: the functional values within structure are a different type
internally but with this patch they are printed the same.
Support for manipulating toplevel functions as values was buggy, because the
recursion after eta-expansion would fall into the pattern for a `let..in` and
not do the expected transformation.
The patch explicitely builds the closure in that case, avoiding such issues with
recursion.
This is a proper replacement for the previous shell-based placeholder hack.
Here is a summary:
- `clerk runtest` (normally run by ninja) is much extended:
* besides generating the test@out file, it checks individual tests for success
and can write a report file containing their status, and the positions for
their (expected/current) outputs (this uses `Marshal`)
* it now handles out-tests directly in addition to inline-tests, for which
it generates the separate output file ; they are included in the report
- ninja is now tasked with building all the test reports (which shouldn't fail);
for directories, individual reports are concatenated (as before).
Removing intermediate report rules, and out-test rules means that the ninja
file is much simplified.
- then, clerk takes back control, reads the final reports and formats them in a
user-friendly way. Printing the reports may imply running `diff` internally.
In particular, the commands to easily reproduce each test are provided.
Resetting the test results if required is also done directly by clerk, at this
stage.
A few switches are available to customise the output, but I am waiting for some
feedback before deciding what to make available from the CLI.
The `clerk report` command is available to manually explore test reports, but
normally the processing is done directly at the end of `clerk test` (i.e. ninja
will no longer call that command)
some of the types (in particular, in hoisted closures) could not be
reconstructed afterwards. This properly propagates the types, including to
closure deconstruction time, giving additional insurance; and allowing
monomorphisation not to choke on the result.
NOTE: This is a temporary solution
A future approach could be to have Catala generate a module loader (with the
proper hash), relieving the user implementation from having to do the
registration.
