Summary:
OCaml 4.08 has a new warning (66) on unused `open!` statements. This
has a suboptimal interaction with `ppx_let`'s `let%map_open` which
leads to triggering the warning if any of a group of such let bindings
does not need the open.
In this case, the refactor is easy.
But, warning 66 is very dubious, so also just switch it off.
Reviewed By: jvillard
Differential Revision: D18708466
fbshipit-source-id: 77618ab6e
Summary:
It seems to be effectively unmaintained, as it still doesn't support
4.08.
Reviewed By: jvillard
Differential Revision: D18708467
fbshipit-source-id: dcb3361fc
Summary:
This diff fixes the model of substring.
Problem: The cost model of the substring function was to return `size of string - start index` as a
cost. However, sometimes this was a negative number, because of state abstractions on paths, array
elements, call contexts, etc, which caused an exception inadvertently.
This diff changes the model to return just `size of string`, when it cannot say `size of string` is
bigger than `start index`.
Reviewed By: ezgicicek
Differential Revision: D18707954
fbshipit-source-id: 63f27e461
Summary: Rather than repeatedly matching actuals, let's use `ProcnameDispatcher.ModeledCall` to pick up the actual arguments with their corresponding values. This simplifies the models.
Reviewed By: jvillard
Differential Revision: D18685855
fbshipit-source-id: 7788bd8bb
Summary: This diff removes `'markers` and `'captured_types` from the procname dispatcher. They are for checking an integrity when a type is captured from template parameters then it is used to match in parameters. However, we have not used that feature, so which simply complicates the types in the dispatcher without any gain at the moment.
Reviewed By: jvillard
Differential Revision: D18706254
fbshipit-source-id: f493778d7
Summary: Preperation diff to use `ProcnameDispatcher` for Pulse: it changes function arguments, i.e. `ProcnameDispatcher.Call.FuncArg`, to a record in order to track the value of arguments. To do that, it changes `ProcnameDispatcher.Call` into a functor so that we can parametrize over the type of the value without making changes upwards.
Reviewed By: jvillard
Differential Revision: D18590224
fbshipit-source-id: 6a13fbc1a
Summary:
This will allow us tune nullsafe behavior in a more fine-grained way.
See e.g. a follow up diff when we report errors more clearly.
Reviewed By: ngorogiannis
Differential Revision: D18683747
fbshipit-source-id: 7b5c42a03
Summary:
We were wrongly not supressing third-party calls in
case third party repo is provided: there was a bug in the function is_modelled_externally.
because of this we accidentally stopped supressing third party and
started to advertise it in non-strict mode.
we do plan doing that, but little bit further ahead :)
So let's add a param guiding this.
Reviewed By: artempyanykh
Differential Revision: D18658271
fbshipit-source-id: 703f2675b
Summary:
We will migrate to the new representation in the future, but for now
let's keep both active.
Reviewed By: artempyanykh
Differential Revision: D18657955
fbshipit-source-id: 9deb03f1f
Summary:
Instead of trying to figure out what runnable is directly passed to an executor,
use attributes to track the flow of a runnable. This has several advantages:
- Can track runnables across function return values.
- Can somewhat overcome the information loss under dynamic dispatch.
- Unifies handling with other attributes.
Reviewed By: skcho
Differential Revision: D18672676
fbshipit-source-id: a06a0e6ff
Summary:
- Unify treatment of modelled and annotated executors by making things go through attributes.
- Add a return attribute to summaries, so that we can track flows of thread guards/executors/future stuff through returned values.
- Dispatch modeled functions to model summaries.
This will help in following diffs where runnables will also go through attributes.
Reviewed By: skcho
Differential Revision: D18660185
fbshipit-source-id: e26b1083e
Summary:
The infer/src/c_stubs directory contains a dune-project file. This
causes ocamlformat to conclude that the root of the project is
infer/src/c_stubs, and there is no .ocamlformat file there, so it does
not apply to the Fnv64Hash.ml file.
(There is currently a bug where it does apply anyway, but it is fixed
in master.)
Reviewed By: dulmarod
Differential Revision: D18684831
fbshipit-source-id: bcb53ce94
Summary:
Some field types of structs are missing in Java. The reason is:
* When capture, empty struct types are added without their fields.
* The empty struct types are overwritten to the global tenv when merging all tenvs.
As a fix, this diff add a boolean field, `dummy`, in `Typ.Struct.t`, then avoids that non-dummy types are replaced by dummy types.
Reviewed By: ngorogiannis
Differential Revision: D18657323
fbshipit-source-id: 4a263f8e7
Summary:
This is a better home for knowing whether a function has sentinel args
according to its prototype declaration.
Reviewed By: dulmarod, artempyanykh
Differential Revision: D18573919
fbshipit-source-id: 13f58eaa2
Summary: Another dead flag that one could mistakenly think is accurate.
Reviewed By: dulmarod
Differential Revision: D18573925
fbshipit-source-id: 129a9cff5
Summary:
This was never set to true except in a wrong way in the Java frontend
(see previous diff).
Reviewed By: dulmarod
Differential Revision: D18573927
fbshipit-source-id: 4c9d1a855
Summary:
This seems just wrong: the assume statement can return if the expression
is true.
Reviewed By: skcho
Differential Revision: D18573921
fbshipit-source-id: 47a5b0ea0
Summary:
A plugin update allows infer to know when a function doesn't return
according to its attributes. This propagates this info all the way to
the attributes of each function, and then use this information in a new
pre-analysis that cuts the links to successor nodes of each `Call`
instruction to a function that does not return.
NOTE: The "no_return" `CallFlag.t` was dead code, following diffs deal
with that (by removing it).
Reviewed By: dulmarod
Differential Revision: D18573922
fbshipit-source-id: 85ec64eca
Summary:
This also prints the CFGs *after* pre-analysis for individual procedures
in infer-out/captured/<filename>/<proc>.dot. One can also look up the
CFGs before pre-analysis in infer-out/captured/proc_cfgs_frontend.dot.
Context: I want to add a pre-analysis that needs to look at proc
attributes inter-procedurally. For this to make sense it has to happen
*after* all of capture, and before analysis.
Thus, this diff brings back the lazy running of the pre-analysis like in
D15803492, except that we still make sure to run the pre-analyses
systematically regardless of the checkers being run by running the
pre-analysis from ondemand.ml. Also we don't need to re-introduce the
"did_preanalysis" proc attribute for the same reason that the
pre-analysis is now run once and for all by ondemand.ml (instead of each
individual checker back in the days).
This has the benefit of running the pre-analysis only when needed, and
the drawback that several concurrent processes analysing the same proc
descs will duplicate work. Since pre-analyses are supposed to be very
fast I assume that neither is a big deal. If they become more expensive
then the benefit gets bigger and the drawback is just the same as with
regular analyses.
Reviewed By: skcho
Differential Revision: D18573920
fbshipit-source-id: de350eaef
Summary: This diff get static value with `EMPTY` field from class initializer.
Reviewed By: ngorogiannis
Differential Revision: D18616588
fbshipit-source-id: 26414c9b2
Summary: When we see a call to schedule some work on an executor and we don't have evidence that it is on some specific thread (UI/BG), instead of dropping the work, assign it `UnknownThread` and treat it as running on the background by default.
Reviewed By: jvillard
Differential Revision: D18615649
fbshipit-source-id: e8bad64b6
Summary:
Not sure what's going on but even though `set -e` is passed,
`install_opam_deps` was seen as succeeding even when the `opam install`
command failed. This prevented `opam_retry` from getting triggered (and
the error was also silently ignored).
Also get rid of a couple of useless subshells in `opam_retry`.
Reviewed By: jberdine
Differential Revision: D18615860
fbshipit-source-id: 360232623
Summary:
This allows us to move the CFG rendering to IR/.
The parts of that file concerning CFGs and those concerning Biabduction
specs were entirely disjoint, it turns out, so that was easy.
Reviewed By: jberdine
Differential Revision: D18573924
fbshipit-source-id: 0a5ab6478
Summary: Following D18351867, this diff adds more size alias: when initial array size is one.
Reviewed By: ezgicicek
Differential Revision: D18530598
fbshipit-source-id: 26d57fe30
Summary:
- more flexible API
- less error-prone thanks to named parameters
- also takes care of adjusting predecessors of the previous successors!
This fixes some (probably harmless) bugs in the frontends.
Reviewed By: dulmarod
Differential Revision: D18573923
fbshipit-source-id: ad97b3607
Summary: The transition HOLDS-NEXT WITH-TRANSITION Parameters was only implemented for ObjC methods, now it also works on function calls.
Reviewed By: jvillard
Differential Revision: D18572760
fbshipit-source-id: 06e615cbe
Summary:
Now we point to the root cause of the problem, and also provide
actionable way to solve the issue
Reviewed By: artempyanykh
Differential Revision: D18575650
fbshipit-source-id: ba4884fe1
Summary:
Two goals:
1. Be less assertive when speaking about third party code (it might be
written with different conventions).
2. Point to third party signatures folder so the users know how to
proceed
Reviewed By: artempyanykh
Differential Revision: D18571514
fbshipit-source-id: 854d6e746
Summary:
1/ We now support messaging for third-party: show file name and line
number
2/ We did not show information about internal models in case of param
calls
3/ Small change: we don't specify "modelTables.ml" anymore: no need to
expose implementation details
Reviewed By: artempyanykh
Differential Revision: D18569790
fbshipit-source-id: 28586c8ff
Josh Berdine
Sungkeun Cho
Ezgi Çiçek
Dulma Churchill
Mitya Lyubarskiy
Nikos Gorogiannis
Jules Villard
Martin Trojer