Summary:
This diff adds a layer of report deduplication logic in addition to
the existing scheme.
Suppose issue 1 with trace1a and trace1b, and issue 2 with trace2a and
trace2b. If trace1a ends at the same location as trace2a (resp.,
trace2b) and trace1b ends at the same location as trace2b (resp.,
trace2a), then consider issues 1 and 2 to be duplicates.
This chooses to report the issue with the smaller sum of trace
lengths, breaking ties using the issue hashes, and eventually the
entire issue. Therefore there is a potential for flakiness with
respect the the choice of which report to make within a
hash-equivalence class.
Reviewed By: sblackshear
Differential Revision: D6519607
fbshipit-source-id: 63210ab
Summary: As Dulma pointed out, adding or removing paramters in a method in Objective C is changing the name of the method. Such changes should not make pre-exisiting issues reported as introduced. This diff is to prevent this by only keeping in the bug hash the part of the name that is before the first colon.
Reviewed By: dulmarod
Differential Revision: D6491215
fbshipit-source-id: 3c00fae
Summary: It is difficult to understand a lock consistency violation if error message includes an access path with a logical variable or a temporary variable as a base. As a temporary fix, we want to suppress all such warnings.
Reviewed By: sblackshear
Differential Revision: D6460559
fbshipit-source-id: 6f3fc18
Summary:
Our model of unique_ptr and shared_ptr relied on the fact that we could C-style cast a pointer to the internal pointer type used in the smart pointer.
This is wrong when the smart pointer is used with a custom deleter that declares its own pointer type whose is not constructible from just a single pointer.
Reviewed By: dulmarod
Differential Revision: D6496203
fbshipit-source-id: 1305137
Summary: Local `CKComponentScope`'s are often created purely for their side effects, so it's fine for them to be unread.
Reviewed By: jeremydubreil
Differential Revision: D6475475
fbshipit-source-id: 17e869a
Summary: This would allow the checker to detect indirect nullable violations, i.e. violations that are involving intermediate method calls on potentially `nil` values.
Reviewed By: sblackshear
Differential Revision: D6464900
fbshipit-source-id: 3663729
Summary: NSDictionary initialization will crash when using `nil` as a key or as a value
Reviewed By: dulmarod
Differential Revision: D6466349
fbshipit-source-id: 57bb012
Summary: For the Buck integration for Java, caching when a summary is not found avoids going through the whole classpath every time a summary for the same method is not found.
Reviewed By: mbouaziz, jvillard
Differential Revision: D6402833
fbshipit-source-id: 4feb422
Summary: This will avoid collisions when the inner classes are implementing the same methods. For example, the previous version of the bug hash could conflate the issues when several annonymous inner classes are implementing the same method, e.g. a annonymous subclass of `Runnable` implementing `run()`.
Reviewed By: sblackshear
Differential Revision: D6461594
fbshipit-source-id: 2bb8545
Summary: I always get confused by `accessPath.ml` not being next to HIL when trying to open files
Reviewed By: sblackshear
Differential Revision: D6462980
fbshipit-source-id: 8ba9b71
Summary:
Simpler bug hash that is more independent of the underlying analysis. This now computes the hash based on:
- the bug type.
- the base filename: i.e for my/source/File.java, just keep File.java. So the hash will not change when moving files around.
- the simple method name: i.e. without package information and list of parameters. So changing the list of parameters will not affect the bug hash.
- the error message were the line numbers have been removed. So moving code or reformatting will not affect the hash.
Reviewed By: jberdine
Differential Revision: D6445639
fbshipit-source-id: 82e3cbe
Summary:
Summaries can be big, and they can always be printed via `infer report` if we want to see them.
There's no reason to log them eagerly, even in debug mode.
Reviewed By: jeremydubreil
Differential Revision: D6451815
fbshipit-source-id: 643cd47
Summary: In every place this was used except one, `debug_mode` is also used as a gate.
Reviewed By: jeremydubreil
Differential Revision: D6450913
fbshipit-source-id: 6a5716d
Summary: To avoid false positives, we treat `operator[]` in cpp as container read. Moreover, if a container `c` is owned, we make all accesses `c[i]` to be also owned.
Reviewed By: sblackshear
Differential Revision: D6396574
fbshipit-source-id: 94aabff
Summary:
On spinning disks the performance of commits are worse when `synchronous=NORMAL`.
Reading the documentation of SQLite, when `synchronous=OFF` there's a risk of DB corruption when the operating system crashes or the computer loses power before that data has been written to the disk surface; on the other hand, a crash in Infer should keep data in the DB in a sound state.
Buck reached the same conclusions too: 4680162279
Reviewed By: mbouaziz
Differential Revision: D6413384
fbshipit-source-id: 99e4650
Summary:
It seems that the abstraction instructions were not previously added the the CFG.
This is a functional changes to make sure that the abstraction state is always added. We can simplify the code later and just run this step before storing the CFG instead of after loading them.
Reviewed By: sblackshear, jvillard
Differential Revision: D6383672
fbshipit-source-id: cedcb8a
Summary:
Deduping issues when generating a single report and then diffing the
reports can lead to introduced issues being considered duplicates of
existing issues.
Reviewed By: sblackshear
Differential Revision: D6414673
fbshipit-source-id: bba81fd
Summary:
As da319 points out, we did not handle this case correctly before. There were a few reasons why:
(1) An assignment like `struct S s = mk_s()` gets translated as `tmp = mk_s(); S(&s, tmp)`, so we didn't see the write to `s`.
(2) We counted uses of variables in destructors and dummy `_ = *s` assignments as reads, which meant that any struct values were considered as live.
This diff fixes these limitations so we can report on dead stores of struct values.
Reviewed By: da319
Differential Revision: D6327564
fbshipit-source-id: 2ead4be
Mehdi Bouaziz
Jeremy Dubreil
Sam Blackshear
Jules Villard
Daiva Naudziuniene
Josh Berdine
Peter O'Hearn
Dulma Churchill
Martino Luca