Summary: `IntLit.to_int` could raise, was not documented until recently and was not named `_exn`. Switch to option type and fix uses.
Reviewed By: jeremydubreil
Differential Revision: D8865525
fbshipit-source-id: f5ec2f221
Summary:
When `--reanalyze` is passed, mark the summaries of procedures matching
`--procedures-filter` as needing to be analysed before running the analysis.
This allows one to, for instance, re-run the analysis in debug mode on only
some files or procedures. However, this won't work for the Java Buck
integration since the summaries are hidden away in buck-out.
Reviewed By: mbouaziz
Differential Revision: D8783668
fbshipit-source-id: 9032d83
Summary:
This allows to deduplicate some code related to walking the rows of the results
of a SQLite query. Give more meaningful names to the API while I'm at it.
Reviewed By: mbouaziz
Differential Revision: D8783332
fbshipit-source-id: 4aa6613
Summary: All the rows were wrapped in `Some` but that is not needed anywhere.
Reviewed By: mbouaziz
Differential Revision: D8783310
fbshipit-source-id: b020af3
Summary:
Filtering on the SQLite side was done to be more efficient, but these are debug
options so it should be fine for them to be not very optimised.
Filtering on the OCaml side will allow us to re-use these filtering options for
other purposes, such as re-analysing certain procedures only.
Reviewed By: mbouaziz
Differential Revision: D8767691
fbshipit-source-id: e232660
Summary: Do not start with an invalid source file when we can avoid it. Follow up from D8418447.
Reviewed By: jeremydubreil
Differential Revision: D8732168
fbshipit-source-id: 28a183b
Summary: Otherwise the dead code checker sometimes crashes with a not-totally-related error.
Reviewed By: mbouaziz
Differential Revision: D8732546
fbshipit-source-id: 65caabd
Summary: Trying to convert a large int literal to an OCaml int raises an exception. The use case here actually needed a float anyway, so add an API for that.
Reviewed By: jeremydubreil
Differential Revision: D8550410
fbshipit-source-id: 382495b
Summary: Removing an internal error in SIL to HIL translation which I had added before to log how often the particular case was happening. It happens quite often, and I have a task to investigate the issue. Removing it as it spams the analysis output a lot.
Reviewed By: dulmarod
Differential Revision: D8316822
fbshipit-source-id: 4047cbe
Summary:
`make doc` will use `jbuilder` (which in turn uses `odoc`) to generate the
documentation for infer's modules. This is useful to browse the APIs of infer
and gives a more discoverable place to host more general documentation about
infer's internals.
Besides the actual plumbing necessary to generate the docs, this diff also
- Moves the various infer/src/*/README.md to index.mld files that make it to the generated docs
- Fixes some doc comments that would anger `ocamldoc`
Closes#435
Reviewed By: mbouaziz
Differential Revision: D8314572
fbshipit-source-id: 4a5c70e
Summary: We get a lot of false positives for union types as union fields are treated as separate memory locations at the moment. For now we do not treat union fields as uninitialised.
Reviewed By: mbouaziz
Differential Revision: D8277363
fbshipit-source-id: efe5b4a
Summary:
Change the license of the source code from BSD + PATENTS to MIT.
Change `checkCopyright` to reflect the new license and learn some new file
types.
Generated with:
```
git grep BSD | xargs -n 1 ./scripts/checkCopyright -i
```
Reviewed By: jeremydubreil, mbouaziz, jberdine
Differential Revision: D8071249
fbshipit-source-id: 97ca23a
Summary:
For now: just moving this list behind an abstract type.
Next: changing the internal representation.
Reviewed By: ngorogiannis
Differential Revision: D8140926
fbshipit-source-id: 5b959b0
Summary:
Append can be costly, let's do it once only.
Depends on D8185619
Reviewed By: jeremydubreil
Differential Revision: D8185634
fbshipit-source-id: 67f84a9
Summary:
- do not `List.rev` for `List.last`
- `List.rev_filter_map` rather than `filter |> map |> rev`
Reviewed By: da319
Differential Revision: D8185619
fbshipit-source-id: aeb41a4
Summary: The order of nodes means nothing, and should not matter, let's save the whales!
Reviewed By: ngorogiannis
Differential Revision: D8182137
fbshipit-source-id: bc14a2c
Summary:
Moving away from C++ include-based models means that we cannot reliably detect
anymore whether a file includes <iostream> or not. In order not to be too
spammy, let's always assume standard streams are initialized for now when the
include models are off.
Recent versions of libstdc++ make these models redundant so there is hope that in a
bright future the analysis of std streams initialisation will work correctly without infer
having to have its own models anyway.
Reviewed By: mbouaziz
Differential Revision: D8043467
fbshipit-source-id: d118043
Summary: The type of array element is not preserved correctly in the translation from SIL to HIL. When array element is passed by a reference, i.e. `f(&(array[0]))`, the type of array element gets the type of a pointer of array element.
Reviewed By: jvillard
Differential Revision: D8071188
fbshipit-source-id: 3e6635e
Summary: Use AccessExpressions instead of AccessPath in uninit analysis. This will allow us to distinguish between pointers and their dereferences.
Reviewed By: jvillard
Differential Revision: D8042359
fbshipit-source-id: 604bcbc
Summary: Moving this function since it's about a single procdesc. Slight rewrite too.
Reviewed By: da319
Differential Revision: D8030494
fbshipit-source-id: f7cc58e
Summary:
This diff:
- translates C++ `catch` blocks
- adds an exceptional control-flow edge from the end of a `try` block to the beginning of a `catch` block
This obviously doesn't reflect the way exceptions actually work, but I think it is better than what we have now. For one thing, we'll see/translate code inside `catch` blocks, which were opaque before. If Clang analyses don't want this behavior, they can simply use `ProcCfg.Normal` (which, up until this diff, behaved identically to `ProcCfg.Exceptional`.
In the future, we can extend `trans_state` to track blocks that might throw an exception, and have each of these blocks transition to `catch` instead.
Reviewed By: jvillard
Differential Revision: D7814521
fbshipit-source-id: 67b86a6
Summary:
Previously, the type of `trans_result` contained a list of SIL expressions.
However, most of the time we expect to get exactly one, and getting a different
number is a soft(!) error, usually returning `-1`.
This splits `trans_result` into `control`, which contains the information
needed for temporary computation (hence when we don't necessarily know the
return value yet), and a new version of `trans_result` that includes `control`,
the previous `exps` list but replaced by a single `return` expression instead,
and a couple other values that made sense to move out of `control`. This allows
some flexibility in the frontend compared to enforcing exactly one return
expression always: if they are not known yet we stick to `control` instead (see
eg `compute_controls_to_parent`).
This creates more garbage temporary identifiers, however they do not show up in
the final cfg. Instead, we see that temporary IDs are now often not
consecutive...
The most painful complication is in the treatment of `DeclRefExpr`, which was
actually returning *two* expressions: the method name and the `this` object.
Now the method name is a separate (optional) field in `trans_result`.
Reviewed By: mbouaziz
Differential Revision: D7881088
fbshipit-source-id: 41ad3b5
Summary:
This is an attempt to make things more consistent, and maybe save some work
from the `Format` module in case flambda doesn't have our backs.
Reviewed By: jberdine
Differential Revision: D7775496
fbshipit-source-id: 59a6314
Summary:
One source of non-determinism is racing on procedure summaries when reporting. In particular, the summary of a method may be computed and stored by one thread, but another may be trying to report on it (eg, in cluster checkers).
One solution (at least until everything is in sqlite) is to have separate files just for the reports, a la linters. This diff improves the interface of LintIssues and generalises it ahead of using it in other analysers.
Reviewed By: jeremydubreil
Differential Revision: D7859973
fbshipit-source-id: 8672d3b
Summary:
This simplifies the frontends and backends in most cases. Before this diff,
returning `void` could be modelled either with a `None` return, or a dummy
return variable with type `Tvoid`. Now it's always the latter.
Reviewed By: sblackshear, dulmarod
Differential Revision: D7832938
fbshipit-source-id: 0a403d1
Summary: Returning the list of sub-expressions is not right and can cause assertion failures elsewhere in the frontend.
Reviewed By: dulmarod
Differential Revision: D7813493
fbshipit-source-id: 33ac9c1
Summary:
Add warning 60 (unused module) to the list of fatal warnings. Whitelisting
modules at toplevel is tricky (see inline comments) but doable.
Reviewed By: mbouaziz
Differential Revision: D7790073
fbshipit-source-id: 6f591c4
Summary:
Add a `--source-files` option to `infer explore` to print information about the source files captured by infer.
More precisely, `infer explore --source-files` will print each row of the "source_files" table in the results database.
Option `--source-files-filter` can be used to filter output to file names matching an SQLite "LIKE" pattern.
Flags `--source-files-cfgs`, `--source-files-type-environment`, `--source-files-procedure-names` and `--source-files-freshly-captured` control which columns to print.
The printers for some existing types have been tweaked to improve the output.
Reviewed By: jvillard
Differential Revision: D7735535
fbshipit-source-id: 572389a
Summary:
When looking at large CFGs, at least in `xdot`, it's often difficult to find
the procedure you're looking for. Sorting the proc names puts them in
alphabetical order, which makes searching one procedure easier.
Reviewed By: mbouaziz
Differential Revision: D7758521
fbshipit-source-id: 8e9997f
Summary:
[This is a stepping stone before moving the specs data to sqlite.]
Previously, things worked like this (ignore ObjC):
1. capture & analyse C models
2. capture & analyse C++ models
3. copy C *.specs files to lib/specs/
4. copy C++ *.specs files to lib/specs/
Now it works like this:
1. capture C models
2. capture C++ models
3. analyse both together
4. install *.specs files to lib/specs
Reviewed By: sblackshear
Differential Revision: D7639322
fbshipit-source-id: 58d7c53
Summary:
Upgrade ocamlformat, and base which needs to be done in sync in order to build
ocamlformat, and the other deps can come for the ride.
Reviewed By: jvillard
Differential Revision: D7663537
fbshipit-source-id: 3e90970
Summary: We already suppress race reports if the field is marked in this way; makes sense to do the same thing for these reports.
Reviewed By: ngorogiannis
Differential Revision: D7589275
fbshipit-source-id: 8f0aeab
Summary:
We were using the "filename" as the key because it's (kinda) unique *and* human
readable, but with the `infer explore --procedures` interface we don't really
need the human readable part anymore, so we can just use the OCaml marshalling
of the pname as the key. The human-readable version (sans unique-fying hash) is
now another column in the table, used to match procedure names in
`--procedures-filter`.
Reviewed By: sblackshear
Differential Revision: D7639158
fbshipit-source-id: e714605
Summary:
Add a `--procedures` option to `infer explore` to print information about the
procedures captured by infer. More precisely, `infer explore --procedures` will
print each row of the "procedures" table in the results database. A new
`--procedures-filter` controls which procedures to print information about, and
there is one flag per column in the db too to print more or less options about
each procedure (in particular, we can now print attributes), with some defaults.
Reviewed By: sblackshear
Differential Revision: D7639062
fbshipit-source-id: 034a2b8
Summary:
- Less `^`
- `pp_print_string` instead of `F.fprintf fmt "%s"`
- and stuff like that
Reviewed By: jvillard
Differential Revision: D7607336
fbshipit-source-id: 5d985ef
Summary:
This is unused, but the logic for keeping its value up to date was still alive
and kicking.
I don't know that making use of this flag would be easy: we could just use it
in `Ondemand.should_analyze`, but it would be unsound because a procedure might
need to be re-analysed becauese its dependencies have changed. Since there's
not code to deal with that currently I think it's best to remove it and
re-introduce it when we have some idea how to use it.
Reviewed By: sblackshear, jeremydubreil
Differential Revision: D7444179
fbshipit-source-id: 99a1ec5
Summary:
Report nullable inconsistencies by relying on the bytecode, and not on the presence of analysis summary on disk.
This use the `--external-java-packages` to avoid reporting inconsistencies outside of the codebase.
Reviewed By: sblackshear
Differential Revision: D7481101
fbshipit-source-id: 281135d
Summary:
There's actually a nice separation between IR/, base/, istd/, and the rest of
infer, so they can be made into separate jbuilder libraries so that the
separation remains. This helps make sense of the infer codebase.
Also:
- move everything biabduction-related out of backend/ and into a new
biabduction/ directory. This clarifies the current situation where backend/
contains a mix of analysis-independent code (still there now), and
biabduction-specific code (moved to biabduction/).
- move everything from base/ that is not infer-specific into istd/, e.g. IList.ml
- kill unused `FbTraceCalls`
- A couple of files needed to move around to complete the separation of base/ and IR/
Reviewed By: mbouaziz
Differential Revision: D7381842
fbshipit-source-id: cd86dea
Summary:
Limit the scope of what gets included into IStd.ml to only values that we want
to shadow. New values go into other files.
Also, build istd/ with `Core` open.
Reviewed By: mbouaziz
Differential Revision: D7382111
fbshipit-source-id: 969f0e8
Summary:
There's no real reason not to use `Core` lists in this module. Changed the
interface to be more `Core`-like. Changed the `*_changed` functions to use a
ref to track changes instead of passing the changed state around.
Reviewed By: mbouaziz
Differential Revision: D7123211
fbshipit-source-id: b27791a
Summary: The "advice" section of the error description does not seem to be used in practice.
Reviewed By: mbouaziz
Differential Revision: D7348815
fbshipit-source-id: 1d7c8c7
Jules Villard
Martin Trojer
Nikos Gorogiannis
Dulma Churchill
Ezgi Çiçek
Jeremy Dubreil
Mehdi Bouaziz
Daiva Naudziuniene
Sam Blackshear
Oliver Castillo
Frédéric Bour
Josh Berdine
Martino Luca