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:
Sometimes clang9 does not return a boxing method (a name of function to apply), e.g., [@("str")].
To solve the issue, this diff uses "unknownSelector:" instead of giving up the translation.
Reviewed By: dulmarod
Differential Revision: D18831844
fbshipit-source-id: b9324ba39
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: The tableaux evaluation was an experiment and it was turned off because of bad perf. Let's kill it to clear up the code.
Reviewed By: jvillard
Differential Revision: D18708388
fbshipit-source-id: 099f5a3d3
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:
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:
- 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:
Now that we have two similar functions, it becomes confusing, because `Pp.to_string` and `Pp.string_of_pp` can seem to do the same stuff, while in reality they do the opposite.
Well, it is still bit confusing, because the proper names would be
`Pp.pp_of_to_string` and `Pp.to_string_of_pp`, but I think this high
level order names are not necessary given that in most cases they will
be used as concrete functions.
I think `Pp.of_string` captures such usages better than `to_string` used to do: you need to pp stuff,
but you have a string (or, technically, a function that returns a string), so you pretty print OF that string, aren't you?
Reviewed By: jvillard
Differential Revision: D18245876
fbshipit-source-id: fd4b6ab68
Summary: Adding support to matching block names. We match mangled block names. We also needed to extend the function for extracting the range for each method, to also traverse the stmts to be able to find the block declarations.
Reviewed By: skcho
Differential Revision: D17956931
fbshipit-source-id: 707908812
Summary:
- Adds ATD file to parse the clang profiler samples
- Procnames don't help us here because we want to use mangled names, not the version of names that Infer needs, so passing in the RangeMap also ClangProc that just include the names and mangled names.
- First matching of c functions to have something in place to add a test, matching further method kinds to be done in next diff.
Reviewed By: skcho
Differential Revision: D17877071
fbshipit-source-id: b31d651a7
Summary:
This was causing a crash, because when trying to create a procname from a block at that point we don't have the block return type, which is needed for the name. I don't understand why BlockDecl doesn't contain the type, but I looked again and it doesn't (also in clang). So in general we need to pass it from the context, but that's not possible in this case.
Also, one could argue that such a block is not a method from the struct, since it's just a block that is assigned to a field as initialization.
Reviewed By: skcho
Differential Revision: D17575197
fbshipit-source-id: 3974ead3f
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:
As per previous diff, attempt to allocate fewer strings. This doesn't
seem to affect perf although allocating less might reduce memory
pressure.
Reviewed By: mityal
Differential Revision: D17423973
fbshipit-source-id: e2e37b071
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:
It adds typ field in Sil.Store. The field will be used by the analyzer in the following diffs.
Motivation: Interbo generates a symbolic value when evaluating expressions including parameter symbols. At that time, it is done with depending on their types, e.g., an integer, a pointer to struct or a pointer to array. Without the type, it is hard to generate a correct symbolic value that will be instantiated later in call sites. Thus, evaluating RHS of the store statement, the type of RHS is better to be given.
Reviewed By: dulmarod
Differential Revision: D17185346
fbshipit-source-id: f0945c40f
Summary:
It adds `typ` field in Sil.Load. The field will be used by the analyzer in the following diffs.
Motivation: Interbo generates a symbolic value when evaluating expressions including parameter symbols. At that time, it is done with depending on their types, e.g., an integer, a pointer to struct or a pointer to array. Without the type, it is hard to generate a correct symbolic value that will be instantiated later in call sites. Thus, evaluating RHS of the load statement, the type of RHS is better to be given.
Reviewed By: jvillard
Differential Revision: D17163350
fbshipit-source-id: f7f0f1429
Summary:
It uses inline record for Sil.Load and Sil.Store for preparing the
following extention.
Reviewed By: dulmarod
Differential Revision: D17161288
fbshipit-source-id: 637ea7bfa
Summary:
We currently use storage_class only for checking is_static, adding the flag instead in the plugin to improve perf by avoiding string comparisons.
update-submodule: facebook-clang-plugins
Reviewed By: ngorogiannis
Differential Revision: D17156173
fbshipit-source-id: 2b84a0b84
Summary:
The clang frontend has bugs. When a bug we know about happens some
exception is raised and, most of the time, logged away so as not to
crash the whole process. This catching of exceptions wasn't done from
testDeterminator so it could crash where capture didn't. This diff wraps
the crashy function in test determinator to avoid that.
Reviewed By: ngorogiannis
Differential Revision: D16963178
fbshipit-source-id: 87a4ff70b
Summary:
This isn't really a "config" part of the frontend and this change is
needed later to catch these errors more robustly.
Reviewed By: ngorogiannis
Differential Revision: D16963177
fbshipit-source-id: 293b23acf
Summary:
Rename some AL source files so they mention AL explicitly instead of
"cFrontend" which could be confused with the clang frontend itself.
Reviewed By: ezgicicek
Differential Revision: D16962539
fbshipit-source-id: 29237cd1c
Summary: AL makes for close to a third of the source files in clang/. Put the code in its own folder for clarity.
Reviewed By: ezgicicek
Differential Revision: D16962438
fbshipit-source-id: 3373e69b9
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:
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:
TL;DR: Until this patch, if you ran infer on MacOS Mojave you most
likely would get an error related to missing header files. Now infer
tries to automatically locate current MacOS SDK path thus providing a
better experience for first time users.
Consider helloworld.c
```
#include <stdio.h>
int main()
{
return 0;
}
```
Invoking the analysis `infer -- cc -c helloworld.c` fails with
facebook-clang-plugins/.../include/c++/v1/stdio.h:108:15: fatal error: 'stdio.h' file not found
The reason for this is twofold:
1. infer uses its own clang, not Apple's one (thus custom paths are
not properly setup).
2. Apple stopped copying standard headers from SDK to /usr/include.
Reviewed By: jvillard
Differential Revision: D16377866
fbshipit-source-id: c336ad64f
Summary:
Summary.ml defines both a bunch of types and how to use them and a
mechanism to save and store summaries on disk while maintaining a
complex in-memory cache of what's on disk. Make the distinction clear.
Reviewed By: ngorogiannis
Differential Revision: D16358869
fbshipit-source-id: 9d4c6cb77
Summary:
newer is better, right?
All the code changes in infer are because of core being bumped to v0.12.
Reviewed By: jberdine
Differential Revision: D16223183
fbshipit-source-id: f3c339966
Summary:
So it turns out we need to translate even more cases. Pulse had a FP
before that this fixes.
Reviewed By: ezgicicek
Differential Revision: D16073629
fbshipit-source-id: c03460b5a
Summary:
The previous code would call the destructor for the C++ temporary
*before* the prune nodes, which then try to dereference it. Wrong.
Quick fix: don't destroy temporaries in conditionals.
Reviewed By: mbouaziz
Differential Revision: D16030735
fbshipit-source-id: e11abad58
Summary:
We were skipping some instructions before and that was a problem for
pulse. See added pulse test.
Reviewed By: mbouaziz
Differential Revision: D16030150
fbshipit-source-id: 9c62e6213
Summary: Inject destructor calls to destroy a temporary when its lifetime ends.
Reviewed By: mbouaziz
Differential Revision: D15674209
fbshipit-source-id: 0f783a906
Summary:
Needed for next diff: we'll need to do 2 passes on the AST to collect
the temporaries to destroy at the end of an `ExprWithCleanups`, but the
SIL names of these temporaries are generated freshly on the fly so they
would get different names if we do it naively.
This adds a hashmap to the translation context so the temporary
corresponding to a given `MaterializeTemporyExpr` is only generated once
and then reused.
Reviewed By: mbouaziz
Differential Revision: D15674212
fbshipit-source-id: 0e16062d9
Nikos Gorogiannis
Sungkeun Cho
Martin Trojer
Josh Berdine
Dulma Churchill
Jules Villard
Mitya Lyubarskiy
Ezgi Çiçek
Artem Pianykh
Dino Distefano