Summary:
`Present` annotation was an experiment made many years ago that never
got into real usage. The idea was to annotate Optional<> types with
Present, which means that it is safe to call get().
We don't plan to support `Present` annotation for optional types in the
near future.
Support of `Present` annotation requires extra levels of abstraction
that make the changing the behavior and introducing new features harder.
A lot of checks for nullability are written in generic way so they also
check for presense.
Getting rid of that will allow us to simplify our
work for introducing new semantics for nullsafe.
Reviewed By: ngorogiannis
Differential Revision: D17153432
fbshipit-source-id: c5ea9bdf1
Summary:
Implementation of write-serializer for Sqlite. Points of note:
- A Unix socket is used for communication. This avoids buffer-size limitations, as the objects we send for writing may exceed said limits.
- No daemon is used if running under buck or in genrule mode, as this usually means a single-threaded job capturing into the DB.
- When the daemon is running, read-only access is *not* enforced for other processes. This makes starting and stopping the daemon during Infer execution easier and more robust. In WAL mode this should not have any effect on performance.
- This version is not economical with connections, it uses one per query, todo.
Reviewed By: jvillard
Differential Revision: D17077183
fbshipit-source-id: fa9877d6c
Summary:
I found it very confusing that running infer with --debug makes the
report to be different.
Intuitively, I expect (and I think majority of users would expect) that
`--debug` makes things more verbose (and potentially more slow / consuming
more memory and disk space), but does not change anything apart from it.
One pro of preserving existing behavior, pointed by jvillard:
- Suppose some check is experimental or disabled in the config. The
users expect the issue to be found, but it does not show up. They run
`infer --debug` to understand the behavior, and suddenly the issue shows
up.
I, hovewer, find this pro not important enough and potentially confusing
the users even more.
(If they want to investigate seriously, they can always use
--no-filtering, and there are a lot of cases when the issue does not
show up for others, much hard to undertand reasons, than the fact that
it is disabled).
Reviewed By: jvillard
Differential Revision: D17113750
fbshipit-source-id: 46cc93503
Summary:
This is more powerful than `"symbols"` for more advanced use-cases. Keep
`"symbols"` unchanged to make migrating easier.
Differential Revision: D16985756
fbshipit-source-id: dfbb09393
Summary:
The models are only for biabduction so try to make that clearer in the
code and documentation.
Reviewed By: skcho
Differential Revision: D16603147
fbshipit-source-id: 4a2be53de
Summary:
It's not being worked on and is not in a state where it works.
It would probably better to write this as a script of some kind or else
resurrect this subcommand in a form where it behaves more like a script,
ie fork/execs infer analyses instead of having them be function calls
(but then it might as well *be* a script as it would likely be more
flexible).
In any case...
youarealreadydead
Reviewed By: ezgicicek
Differential Revision: D16602417
fbshipit-source-id: d0d129539
Summary:
These have proved to be too fragile to maintain as they would often break
compilation of user code. They have been off by default for more than a year
now (D7350715).
Removing the include models shows a more accurate picture of what infer results
look like in production. As such, lots of tests have changed, mostly
biabduction but also in inferbo. SIOF was using include-based models too but
now libc++ is better and iostreams are implemented in a way that SIOF
understands (instead of being magical creatures) so nothing changed there.
Reviewed By: skcho
Differential Revision: D16602171
fbshipit-source-id: ce38f045b
Summary:
- make most behaviours independent of the java version so that either works fine without user intervention
- modify regexp used to parse `javac` output to work for all versions
- no need to be sure we are in Java 11 to match java 11-only method name in quandary
- for the rest, provide a command-line flag to specify the java version manually in case it differs from the version that infer was built against
- this only affects the Maven integration for now
To do all that, also change the configure script to record the version of java instead of just a boolean for whether it's >= 10.
Reviewed By: ezgicicek
Differential Revision: D16493988
fbshipit-source-id: 622e91b25
Summary:
The default values of config options can sometimes depend on build-time
configuration values. This makes checking that the manuals "remain the same"
trickier as the manuals can be different depending on the platform. This
removes *all* default values from the checked-in manuals. We could be more
fine-grained and scrub only the values that are susceptible to change but for
now this is probably good enough.
This is done by implementing new options `--help-scrubbed` and
`--help-scrubbed-full` and using these in our tests instead of `--help` and
`--help-full` (which remain unaffected).
Also don't wrap the default values in `$(i,...)` anymore because the defaults
can trigger line breaks and then the man page is ill-formatted because that
format is stupid.
Reviewed By: mityal
Differential Revision: D16543779
fbshipit-source-id: bc929ff8c
Summary:
As discussed in D16358474, the options `--reanalyze` and `--incremental-analysis` are not compatible
This diff warns about the compatibility problem in the documentation
Reviewed By: jvillard
Differential Revision: D16440482
fbshipit-source-id: ab841ace6
Summary:
Add a flag to enable incremental diff analysis, where old summaries are not recomputed unless necessary
The implementation for this flag will follow
Reviewed By: ngorogiannis
Differential Revision: D16222865
fbshipit-source-id: e7e225a87
Summary:
Replaced by pulse. `--ownership` is now a deprecated form of `--pulse`.
The ownership checker is starting to give wrong answers due to changes in the
clang frontend, so it's better to remove it in favour of pulse.
there_goes_my_hero
Reviewed By: ngorogiannis
Differential Revision: D16107650
fbshipit-source-id: bb2446a19
Summary:
- Add allocation costs to `costs-report.json` and enable diffing over allocation costs.
- Also, let's be more consistent and modular in naming our cost issues.
- introduce a generic issue type `X_TIME_COMPLEXITY_INCREASE` where `X` can be one of the cost kinds. If the function is on the cold start, issue can have the `COLD_START` suffix. Similarly for infinite/zero/expensive calls.
- Change `PERFORMANCE_VARIATION` -> `EXECUTION_TIME_COMPLEXITY_INCREASE`
- Add new issue type for `ALLOCATION_COMPLEXITY_INCREASE_COLD_START` which will be enabled by default
- Refactor cost issues to be more modular and succinct. This also makes addition of a new cost kind very easy by adding the kind into the `enabled_cost_kinds` list in `CostKind.ml`
Reviewed By: mbouaziz
Differential Revision: D15822681
fbshipit-source-id: cf89ece59
Summary:
This is a simple checker that identifies inefficient uses of `keySet` iterator where (not only the key but also) the value is accessed via `get(key)`. It is more efficient to use `entrySet` iterator which already returns both key-value pairs. This optimization would get rid of many extra lookups which can be expensive.
We simply traverse the CFG starting from the loop head upwards and pick up the map that is iterated over. Then, we check in the loop nodes if there is a call to `get(...)` over this map. If, so we report.
Reviewed By: ngorogiannis
Differential Revision: D15737779
fbshipit-source-id: 702465b4e
Summary:
Instrument SIL according to TOPL properties. Roughly, the
instrumentation is a set of calls into procedures that simulate a
nondeterministic automaton. For now, those procedures are NOP dummies.
Reviewed By: jvillard
Differential Revision: D15063942
fbshipit-source-id: d22c2f6fa
Summary:
`infer_events` table is a key-value storage that also have list of fields common for entire infer run.
Infer should be agnostic of many of such fields (e.g. diff number).
Hence we will pass such extra fields through CI.
Note that only "normals" (strings in scuba terminology) are currently supported.
Reason being: most of things that are technically ints (like IDs) should actually be normals (because average etc does not make sense for them; and group by, in contrast, does).
Reviewed By: jvillard
Differential Revision: D15376636
fbshipit-source-id: 729eaabfc
Summary:
API and stub implementation for real-time logging capabilities.
Low-level implementation requires interaction with FB-specific deployment of Scribe, hence it is stubbed out.
Reviewed By: jberdine
Differential Revision: D15259559
fbshipit-source-id: 712cb99e1
Summary: Previously there was no way of getting that list from the manual.
Reviewed By: jeremydubreil
Differential Revision: D15158598
fbshipit-source-id: 1705ed59d
Summary:
Adds option `--summary-stats` to `infer report`.
The formatting is not perfect yet but it gives what I want.
Reviewed By: ngorogiannis
Differential Revision: D15064162
fbshipit-source-id: 56c4b4929
Summary:
Replace `$(u,...)` with `$(i,...)` since `$(u,...)` doesn't exist.
Cmdliner was emitting a warning at runtime:
cmdliner error: Unknown cmdliner markup $(u,...) in "Specify classes where the destructor should be ignored when computing liveness. In other words, assignement to variables of these types (or common wrappers around these types such as $(u,unique_ptr<type>)) will count as dead stores when the variables are not read explicitly by the program. (default: $(i,[]))"
Reviewed By: mbouaziz
Differential Revision: D15045004
fbshipit-source-id: e03ece4f7
Summary:
This is ~2.5x wall clock faster, ~5x user time faster, and finds 98% of
the bugs. Not very scientific yet but seems better than the previous
non-scientific arbitrary default.
Reviewed By: ngorogiannis
Differential Revision: D14753494
fbshipit-source-id: b72cdd613
Summary:
TOPL properties are essentially automata, which specify a bad pattern.
This commit is just a parser for them.
Reviewed By: jvillard
Differential Revision: D14477671
fbshipit-source-id: c38a8ef37
Summary:
Add an option to specify some classes that we really want to warn about
with the liveness checker, even when they appear used because of the
implicit destructor call inserted by the compiler.
Reviewed By: mbouaziz
Differential Revision: D13991129
fbshipit-source-id: 7fafdba84
Summary:
Add the `--source-files-cfg` option to emit CFGs as .dot files just as if one
had run with `--debug` to begin with. The usual `--source-files-filter`
applies. For example:
```
$ cd examples
$ infer -- clang -c hello.c
$ infer --continue -- javac Hello.java
$ infer --continue -- make -C c_hello
$ infer explore --source-files --source-files-cfg --source-files-filter ".*\.c$"
hello.c
c_hello/example.c
CFGs written in /home/jul/infer.fb/examples/infer-out/captured/*/icfg.dot
```
Reviewed By: ezgicicek, mbouaziz
Differential Revision: D13973062
fbshipit-source-id: 3077e8b91
Summary:
Change join/widen policies to more interesting ones and play around to
find a good tradeoff.
Reviewed By: mbouaziz
Differential Revision: D13432492
fbshipit-source-id: 2c3e498dd
Summary: Experimental feature: Use memcached for summaries as a look-aside cache during analysis.
Reviewed By: jvillard
Differential Revision: D12939311
fbshipit-source-id: 9f78994e2
Summary: This should stop the bleeding until we get a better solution like shared memory + single writer process.
Reviewed By: mbouaziz
Differential Revision: D10868360
fbshipit-source-id: a4d0b064e
Summary: Reports will now be issued for the class loads of the methods specified by the option `--class-loads-roots`.
Reviewed By: jvillard
Differential Revision: D10466492
fbshipit-source-id: 91456d723
Summary: First version of an analyzer collecting classes transitively touched.
Reviewed By: mbouaziz
Differential Revision: D10448025
fbshipit-source-id: 0ddfefd46
Summary:
New analysis in foetal form to detect invalid use of C++ objects after their
lifetime has ended. For now it has:
- A domain consisting of a graph of abstract locations representing the heap, a map from program variables to abstract locations representing the stack, and a set of locations known to be invalid (their lifetime has ended)
- The heap graph is unfolded lazily when we resolve accesses to the heap down to an abstract location. When we traverse a memory location we check that it's not known to be invalid.
- A simple transfer function reads and updates the stack and heap in a rudimentary way for now
- C++ `delete` is modeled as adding the location that its argument resolves to to the set of invalid locations
- Also, the domain has a really crappy join and widening for now (see comments in the code)
With this we already pass most of the "use after delete" tests from the
Ownership checker. The ones we don't pass are only because we are missing
models.
Reviewed By: mbouaziz
Differential Revision: D10383249
fbshipit-source-id: f414664cb
Summary:
The 2nd iteration of analysis of the Android core implementation did not yield actionable models, so delete those.
Turn on strict-mode reporting by default, when doing starvation analysis (which is disabled by default).
Reviewed By: jvillard
Differential Revision: D9991448
fbshipit-source-id: 67504591d
Summary:
Sometimes the default timeout of 10s is not enough(!). Make it
configurable while we work on not hitting it anyway.
Reviewed By: da319
Differential Revision: D10083772
fbshipit-source-id: ab949039f
Summary:
Keep `--analyzer` around for now for integrations that depend on it.
Also deprecate the `--infer-blacklist-path-regex`,
`--checkers-blacklist-path-regex`, etc. in favour of
`--report-blacklist-path-regex` which more accurately represents what these do
as of now.
Rely on the current subcommand instead of the analyzer where needed, as most of
the code already does.
Reviewed By: jeremydubreil
Differential Revision: D9942809
fbshipit-source-id: 9380e6036
Summary:
This allows infer devs to see the effects their changes have on the infer manuals.
Check in the manuals for each subcommand + the output of `--help-full` to get a
complete picture. If this is too annoying we can also check in only
`--help-full`.
Reviewed By: mbouaziz
Differential Revision: D9916404
fbshipit-source-id: b981e2c33
Mitya Lyubarskiy
Nikos Gorogiannis
Jules Villard
Martin Trojer
Ezgi Çiçek
Phoebe Nichols
Radu Grigore
Jeremy Dubreil
Mehdi Bouaziz
David Lively
Dino Distefano
Nikos Gorogiannis
Sungkeun Cho
Julian Sutherland