Summary:
Using debugging on uninit raised an exception. A file was opened twice and closed twice.
This happened because the two abstract interpreters (SIL, LowerHIL) conflicted.
Let's use the LowerHIL-AI directly
Reviewed By: jvillard
Differential Revision: D10126442
fbshipit-source-id: 113c9e131
Summary:
Callsites of `Reporting.log_error/warning` always use `Exceptions.Checkers`, let's simplify the API.
Under the hood it still creates an exception, but this can be cleaned up later.
Reviewed By: jeremydubreil
Differential Revision: D9799860
fbshipit-source-id: 6492a60b4
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:
Having the `Node` module including in the `CFG` one is confusing.
Let's keep it separate.
Reviewed By: ngorogiannis
Differential Revision: D8185754
fbshipit-source-id: 62077e6
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: We want both pointer and pointer dereference to be uninitialised at the beginning. Forgot to add the expression of type pointer when updating the analysis from access paths to access expressions.
Reviewed By: ddino
Differential Revision: D8117011
fbshipit-source-id: 534f7ef
Summary: Set arguments of pointer type as initialised for indirect function calls.
Reviewed By: mbouaziz
Differential Revision: D8097895
fbshipit-source-id: 830f568
Summary: Treat array accesses as initialised if they are passed by reference.
Reviewed By: jvillard
Differential Revision: D8071247
fbshipit-source-id: 5480e90
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:
Preparing for bigger changes...
- Rename `payload` field to `payloads`
- Move `payload` type to `Payloads.t`
- `SummaryPayload`s only have to implement a change on `Payloads.t` rather than `Summary.t`
Reviewed By: sblackshear
Differential Revision: D7987211
fbshipit-source-id: c9d7a74
Summary:
Attempt at a better naming scheme:
- `Specs.summary` are now `Summary.t`. The `Summary` module (replacing `Specs`) contains the summary of a procedure: the results of all the analyses, etc.
- `Summary.ml` is now `SummaryPayload.ml`. This concerns how each (AI) analysis extracts its payload from the master summary.
- Accordingly, checkers now define a `Payload` module where previously they defined a `Summary` module. The type is also cleaned up to use `t` instead of `payload`, etc.
- Cleaned up some names as a result, for instance `Specs.get_summary` -> `Summary.get`, etc.
Reviewed By: ngorogiannis
Differential Revision: D7935883
fbshipit-source-id: 1766545
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:
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:
Now that everything can run at the same time and we have preanalyses, it can be quite hard to read debug sessions.
Here come session names!
Depends on D7607336
Reviewed By: sblackshear
Differential Revision: D7607481
fbshipit-source-id: 676af86
Summary:
So we can share stuff between analyses using the same CFG and node representation.
Depends on D7586302
Depends on D7586348
Depends on D7568701
Reviewed By: sblackshear
Differential Revision: D7586645
fbshipit-source-id: ed64b2c
Summary: More preparation for extending HIL with dereference and address of. We need left hand side of the assignment to also include dereference and address of.
Reviewed By: sblackshear
Differential Revision: D6976150
fbshipit-source-id: 47d1d76
Summary: Preparing to extend HIL with Dereference and AddressOf expressions. Next steps: (1) change SIL -> HIL translation to preserve address of and dereference; (2) adapt analyses based on HIL to make use access expressions.
Reviewed By: jeremydubreil
Differential Revision: D6961928
fbshipit-source-id: 51da919
Summary:
Found the dead code with the script in the next commit, iteratively until no
warnings remained.
Methodology:
1. I kept pretty-printers for values, which can be useful to use from infer's REPL (or
when printf-debugging infer in general)
2. I kept functions that formed some consistent API (but not often, so YMMV), for instance if it looked like `Set.S`, or if it provides utility functions for stuff in development (mostly the procname dispatcher functions)
3. I tried not to lose comments associated with values no longer exported: if the value is commented in the .mli and not the .ml, I moved the comment
4. Some comments needed updating (not claiming I caught all of those)
5. Sometimes I rewrote the comments a bit when I noticed mis-attached comments
Reviewed By: mbouaziz
Differential Revision: D6723482
fbshipit-source-id: eabaafd
Summary: There was several implementations of the same function accross the codebase
Reviewed By: sblackshear
Differential Revision: D6658266
fbshipit-source-id: e12507b
Summary:
Upgrade ocamlformat to 0.3, and (necessarily) base to v0.10.0.
- Fix accumulated mis-formatting
- Update opam.lock to unbreak clean build
- Update to base v0.10.0
- Update opam.lock for base
- Update offline opam repo
- Everyone should already have removed their ocamlformat pin
- ocamlformat 0.3 supports output to stdout natively
- bump version of ocamlformat
Reviewed By: jeremydubreil
Differential Revision: D6636741
fbshipit-source-id: 41a56a8
Summary: There was a back and forth conversion between `string` and `IssueType.t` which was not necessary.
Reviewed By: sblackshear
Differential Revision: D6562747
fbshipit-source-id: 70b57a2
Summary: The checker should not report unitinialzed values on the throw branch.
Reviewed By: ddino
Differential Revision: D6267019
fbshipit-source-id: 05768f1
Summary:
Before this change, analyses using HIL needed to pass `IdAcessPathMapDomain.empty` to abstract interpreter, and would get back the map as part of the post.
This is a confusing API and was a pain point for Dino in trying to use HIL.
This diff adds a HIL wrapper around the abstract interpreter that hides these details.
It replaces `LowerHIL.makeDefault` as the new "simplest possible way" to use HIL.
Reviewed By: jberdine
Differential Revision: D6125597
fbshipit-source-id: 560856b
Summary:
Install ocamlformat from github as part of `make devsetup`, and use it
for formatting OCaml (and jbuild) code.
Reviewed By: jvillard
Differential Revision: D6092464
fbshipit-source-id: 4ba0845
Summary: This will make it easier to generalize the checker to handling uninitialized struct fields.
Reviewed By: ddino
Differential Revision: D6099484
fbshipit-source-id: b9c534b
Mehdi Bouaziz
Josh Berdine
Daiva Naudziuniene
Jules Villard
Dino Distefano
Sungkeun Cho
Jeremy Dubreil
Dulma Churchill
Sam Blackshear