Summary:
We cannot necessarily know if the previous capture phase was java or
clang, hence to be on the safe side we should always merge the global
tenvs when merging Buck targets.
Reviewed By: ngorogiannis
Differential Revision: D19175685
fbshipit-source-id: 8e7492e14
Summary:
Old versions of sawja/javalib got the line numbers slightly wrong. The workaround was to do a regexp search in the source file for the right line.
My understanding is that this is no longer necessary. This diff removes it.
Reviewed By: jvillard
Differential Revision: D19033415
fbshipit-source-id: 2da19d66d
Summary:
Move most of IR/Sil.ml into a new file biabduction/Predicates.ml to
reflect the fact that they are only useful for the biabduction analysis.
Unfortunately this is a huge change.
I tried to keep the change to a minimum, it's mostly about doing
s/Sil/Predicates/ in lots of places but sometimes I used the trick of
specifying parameters or return value types to avoid specifying the
module altogether. This isn't done consistently because there were just
too many places to change for poor me.
Reviewed By: ngorogiannis
Differential Revision: D19158530
fbshipit-source-id: d6dbcfe72
Summary:
Part of making Sil.ml about SIL only.
In order to not introduce a dependency istd/Pp -> base/Config, the
utilities in Pp don't know when to introduce "diff" colours. Fix it by
wrapping them in Sil using the Config option. (we may want to just kill
that option at some point).
Similarly, move stuff from Io_infer to Pp.
Reviewed By: ngorogiannis
Differential Revision: D19158534
fbshipit-source-id: 8110cb7f9
Summary:
- Remove `to_flat_string` as there is `get_field_name` that unambiguously does the same thing.
- Make `pp` print only the field in all languages.
- Fix `to_full_string` so that it has unified behaviour across java/clang and so that it doesn't print `class Foo.x`, but rather `Foo.x`.
Reviewed By: ezgicicek
Differential Revision: D18963033
fbshipit-source-id: e2c803c7d
Summary:
Remove Clang and Java submodules of Typ.Fieldname. They are unnecessary and they reflect a fake dichotomy: there is only one fieldname type. To distinguish between fields of Java classes and other C constructs, there is a helper function provided, but the idea is simple: obtain the class type the field belongs to, and check if it's a Java class.
This diff still preserves behaviour, but removes as many functions as possible from the interface, to leave a small surface.
Reviewed By: mityal
Differential Revision: D18962423
fbshipit-source-id: ffe6933ee
Summary:
In order to handle the example added:
changed domain of `MethodCalled`
from `CreatedLocation -> (IsBuildCalled X IsChecked X Set(MethodCall))`
to `(CreatedLocation X IsBuildCalled) -> (IsChecked X Set(MethodCall))`
This avoids joining of two method calls where one is build-called and the other is not, e.g.,
```
if(b) {
o.build();
} else {
// no build call
}
```
changed domain of `NewDomain`
from `Created X MethodCalled`
to `(Created X MethodCalled) X (Created X MethodCalled)`
One is for no returned memory and the other is returned memory. This keeps precision some join
points of branches, e.g.,
```
if(b) {
return;
} else {
// no return
}
```
Reviewed By: ezgicicek
Differential Revision: D18909768
fbshipit-source-id: c39d1a1ef
Summary: It is not used anywhere and there are no plans to revive it. Kill it!
Reviewed By: skcho
Differential Revision: D18934719
fbshipit-source-id: b9b069b96
Summary:
This diff enables parsing and auto-formatting documentation
comments (aka docstrings).
I have looked at this entire diff and manually made some changes to
improve the formatting. In some cases it looked like it would take too
much time, or benefit from someone more familiar with the code doing
it, and I instead disabled auto-formatting docstrings in those files.
Also, there are some source files where the docstrings are invalid,
and some where the structure detected by the parser appears not to
match what was intended. Auto-formatting has been disabled for these
files.
Reviewed By: ezgicicek
Differential Revision: D18755888
fbshipit-source-id: 68d72465d
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:
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 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: Let's make UI/Cold start parts of the message bold to get more attention.
Reviewed By: jvillard
Differential Revision: D18504857
fbshipit-source-id: b0f199f55
Summary:
We consider Java collections to be like c++ std::vectors and add models for
- `Collections.get(..)`
- `__cast`
Reviewed By: skcho
Differential Revision: D18449607
fbshipit-source-id: 448206c84
Summary:
Let's introduce a set of new cost analysis issue types that are raised when the function is statically determined to run on the UI thread. For this, we rely on the existing `runs_on_ui_thread` check that is developed for RacerD. We also update the cost summary and `jsonbug.cost_item` to include whether a method is on the ui thread so that we don't repeatedly compute this at diff time for complexity increase issues.
Note that `*_UI_THREAD` cost issues are assumed to be more strict than `*_COLD_START` reports at the moment. Next, we can also consider adding a new issue type that combines both such as `*_UI_THREAD_AND_COLD_START` (i.e. for methods that are both on cold start and run on ui thread).
Reviewed By: ngorogiannis
Differential Revision: D18428408
fbshipit-source-id: f18805716
Summary:
The order was wrong: the map from procnames to node-ids was cleaned first, but to clean the map from node-ids to nodes, we need the id and we have already removed it.
The symptom was that effectively no new leaves are created by "removing" a node, so the call graph scheduler quickly devolves to the file-based one.
Reviewed By: skcho
Differential Revision: D18448209
fbshipit-source-id: f272a8112
Summary:
There was some over-general treatment of reachability, in anticipation of changes that didn't happen.
In particular, we only need to flag/remove single nodes, as they must be leaves to be scheduled,
therefore we never need to traverse their successors, because there aren't any.
Reviewed By: jvillard
Differential Revision: D18425905
fbshipit-source-id: b86490542
Summary:
- Convert `task_generator` into a module of `ProcessPool` and collect inside the two combinators which were in semi-random places.
- Make `SyntacticCallGraph` export a `task_generator` as opposed to a call-graph builder.
- Separate `target` type and put it in its own module to avoid dependency cycles.
Reviewed By: skcho
Differential Revision: D18425718
fbshipit-source-id: 7957edac8
Summary: `Str.regexp_string` should be used to find a method name instead of `Str.regexp`.
Reviewed By: ezgicicek
Differential Revision: D18136598
fbshipit-source-id: c4b56dd64
Summary:
The wrong function was used when we tried to see if the class is
annotated with NullsafeStrict. This made it work only for non-static
methods.
Now we use the proper way.
Reviewed By: ngorogiannis
Differential Revision: D18113848
fbshipit-source-id: 02b7555be
Summary:
See explanations in D17955104.
This renames `AbstractAddress` to `AbstractValue` since they are not
necessarily addresses.
Reviewed By: ezgicicek
Differential Revision: D17955290
fbshipit-source-id: 8bb4c61f2
Summary:
- Putting test determinator in own directory
- Putting Java procname creation stuff in its own module
Reviewed By: skcho
Differential Revision: D17929885
fbshipit-source-id: 4f2578566
Summary:
By some unfortunate logic, OCaml often decides to use
`sexp_list`/`sexp_option` instead of just `list`/`option`. Sometimes
these get copy/pasted in interface files.
It would be good to tell OCaml not to do that in the first place but in
the meantime: this diff.
Reviewed By: ngorogiannis
Differential Revision: D17907938
fbshipit-source-id: 7546834a2
Summary:
Describe what the --report-*-* options actually do instead of their
outdated documentation from the time where this was
`--checkers-blacklist-regex`, `--infer-blacklist-regex` and the like.
Reviewed By: dulmarod, mityal
Differential Revision: D17906015
fbshipit-source-id: 204349e9e
Summary: Not used feature and with no obvious roadmap anymore.
Reviewed By: jberdine, jvillard
Differential Revision: D17855860
fbshipit-source-id: fd75b9d62
Summary: `litho` checker contained two checkers: required-props and graphQL field accesses. Although they use the same domain, their reporting conditions and analysis details are different. However, they were bundled into the same analysis by adding disjunctions to `exec_instr` to handle both cases. Let's separate them into two different checkers, keeping a modular transfer function and analyzer that is reused by these two checkers.
Reviewed By: skcho
Differential Revision: D17788834
fbshipit-source-id: 47d77063b
Summary:
The documentation and uses of filtering disagree. One typical usage is deduplication.
Split that where obvious, add comments where not obvious, and leave alone when obviously unrelated to deduplication.
Reviewed By: mityal
Differential Revision: D17715329
fbshipit-source-id: ec757927b
Summary: The analysis is not intra-procedural, hence we don't really read the payload. Let's remove it.
Reviewed By: ngorogiannis
Differential Revision: D17603911
fbshipit-source-id: c92b5c602
Summary: When we have an annotation like `Prop(varArg = X)` or ` ThreadSafe(enableChecks = true)`, we were not able to pick up the names of the parameters like `varArg` or `enableChecks`. This diff fixes that.
Reviewed By: skcho, ngorogiannis
Differential Revision: D17571377
fbshipit-source-id: 5293b5810
Summary:
Introduce a new experimental checker (`--impurity`) that detects
impurity information, tracking which parameters and global variables
of a function are modified. The checker relies on Pulse to detect how
the state changes: it traverses the pre and post pairs starting from
the parameter/global variable and finds where the pre and post heaps
diverge. At diversion points, we expect to see WrittenTo/Invalid attributes
containing a trace of how the address was modified. We use these to
construct the trace of impurity.
This checker is a complement to the purity checker that exists mainly
for Java (and used for cost and loop-hoisting analyses). The aim of
this new experimental checker is to rely on Pulse's precise
memory treatment and come up with a more precise im(purity)
analysis. To distinguish the two checkers, we introduce a new issue
type `IMPURE_FUNCTION` that reports when a function is impure, rather
than when it is pure (as in the purity checker).
TODO:
- improve the analysis to rely on impurity information of external
library calls. Currently, all library calls are assumed to be nops,
hence pure.
- de-entangle Pulse reporting from analysis.
Reviewed By: skcho
Differential Revision: D17051567
fbshipit-source-id: 5e10afb4f
Summary:
The code was already trying to do that but failing. Now it works.
This revealed a slight bug where the progress bar would always stop at
N-1/N 99% jobs. Fixed by moving the progress bar updates *after* the
operation that might decrease the number of jobs left.
Reviewed By: mityal
Differential Revision: D17423978
fbshipit-source-id: fc32db5f3
Summary:
Previously we would incorrectly report the time for the whole process
and this could include capture time too.
Reviewed By: mityal
Differential Revision: D17423977
fbshipit-source-id: b3ed754b3
Summary: We should be able to run this processing ast steps without running linters or capture. This also adds a new module ProcessAST to do the processing, Capture.ml should not know anything else than calling the respective modules for capture, linting or processing.
Reviewed By: ngorogiannis
Differential Revision: D17501453
fbshipit-source-id: 30adba5b1
Summary:
- Instead of merging one target DB into the main DB at a time, merge all target DBs into an in-memory DB (thus, no writing) and then dump it into the main DB at the end. This makes merging faster.
- When using the sqlite write daemon, there is no reason to drive the merge process from the master, sending each individual target to merge down the socket and doing one DB merge at a time. Here we move all the DB merging logic in the daemon, and expose a single function that does it all.
- Refactor some common functionality (notably the `iter_infer_deps` function is now in `Utils`) and remove dead files.
This can be also done using a temporary DB (which is not limited to memory) but this showed worse perf in tests than the in-memory solution as well as the current state of things (! possibly Sqlite-version related?).
Reviewed By: skcho
Differential Revision: D17182862
fbshipit-source-id: a6f81937d
Summary: This calls the method `delete_capture_and_analysis_data` introduced in D17184424 once the appropriate specs files for incremental analysis have been deleted. This fixes two bugs that I observed in incremental analysis that were arising because of stale state left in the results directory.
Reviewed By: ngorogiannis
Differential Revision: D17184424
fbshipit-source-id: d63f59db9
Summary: Use_after_free was used both for biabduction and pulse, and the biabduction version is blacklisted by default. As a result, the Pulse version was also disabled unintentionally. This changes the name of the old use_after_free so that now we can get use_after_free bugs whenever pulse is enabled.
Reviewed By: skcho
Differential Revision: D17182687
fbshipit-source-id: 539ca69de
Fernando Gasperi Jabalera
Jules Villard
Nikos Gorogiannis
Sungkeun Cho
Ezgi Çiçek
Josh Berdine
Dulma Churchill
Mitya Lyubarskiy
Phoebe Nichols