Summary:
Whole bunch of changes aimed to make error messages more clear and
concise.
1/ Wording and language is unified. We make errors sound more like a
type system violations, rather than linter reccomendations.
Particularly, we refrain from saying things like "may be null" - this is
a linter-style statement that may provoke discussions (what if the
developer knows it can not be null in this particular case).
Instead, we refer to declared nullability and nullability of actual values. This way, it is more clear that this is not a heuristic, this is how rules of a type-system work.
2/ Additionally, we drop things like field class in places when the
context should be clear by who looks at the error. We expect the user
sees the code and the error caption. So e.g. we don't repeat the word "field"
twice.
3/ In cases when we are able to retrieve formal param name, we include it for
usability.
4/ For Field not initialized error, we refer to Initializer methods:
this is a non-obvious but important nullsafe feature.
Reviewed By: artempyanykh
Differential Revision: D18569762
fbshipit-source-id: 9221d7102
Summary:
It make the message bit less heavy, and also it is kind of obvious that
it is origin.
In follow up diffs we will change the text so it is hopefully even more
obvious.
Reviewed By: artempyanykh
Differential Revision: D18527695
fbshipit-source-id: a305d547b
Summary:
1. We don't want to teach the users to ignore noise origin because
sometimes we are going to render something useful for them.
2. It just looks not cool.
Reviewed By: artempyanykh
Differential Revision: D18527694
fbshipit-source-id: 0ea248122
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: 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: For Objective-C methods we match the mangled names (the field is name in the profiler samples).
Reviewed By: skcho
Differential Revision: D17952552
fbshipit-source-id: 308d415f6
Summary:
The current usage has several issues reducing code maintainability and
readability:
1. Null_field_access was misleading: it was used for checking accesing
to arrays as well!
2. But actually, when checking access to array via `length`, we sometimes
pretended it is a field access (hence very tricky code in rendering the
error).
3. "Call receiver consistency" is unclear name, was not obvious that it is all about
calling a method in an object.
Let's also consolidate code.
Reviewed By: artempyanykh
Differential Revision: D17789618
fbshipit-source-id: 9b0f58c9c
Summary: Adding a test to the top level makefile that I forgot to add (ooops)
Reviewed By: jvillard
Differential Revision: D17366065
fbshipit-source-id: 8111ccf7a
Summary: This tests the previous commit D17093980, which moves incremental analysis to run before capture
Reviewed By: ngorogiannis
Differential Revision: D17113475
fbshipit-source-id: 702d967b3
Summary:
Currently, the specs directory is cleaned after running capture. This means that the `changed-files` are interpreted in the context of the second set of source files. Therefore if a procedure is deleted from the second set of source files, its specs file will not be deleted.
This moves the cleaning of the specs directory to before capture, to avoid this problem.
Reviewed By: ngorogiannis
Differential Revision: D17093980
fbshipit-source-id: e1a8d8a54
Summary:
Change the logic of the annotation reachability checker in the following
ways:
1. Sanitizers take priority over sinks, i.e. a procedure that is both a
sink and a sanitizer is not a sink. This changes the existing tests
that seemed to assume the opposite. However I think that way is more
useful and goes better with the fact that sanitizers are specified as
"overrides".
2. When applying a summary, check again that we are not in a sanitizer
for the corresponding sink.
Without (2) this there was a subtle bug when several rules were
specified. For example, if `sink_wrapper()` wraps `sink()` for a rule
`R` then the summary of `sink_wrapper()` will be: `R-sink : call to sink()`.
Then, suppose `sanitizer()` calls `sink_wrapper()` and `sanitizer()` is
a sanitizer for `R` but not for another rule `R'`. The previous code
would add the call to `sink()` to the summary of `sanitizer()` because
it's not a sanitizer for `R'`, even though `sink()` is not a sink for
`R'`!
The current code will re-apply the rules correctly so that sinks are
matched only against the right sanitizers.
Reviewed By: skcho
Differential Revision: D16895577
fbshipit-source-id: 266cc4940
Summary:
- run the tests! they weren't hooked up to the main Makefile :/
- add some html debug messages
- formatting
Reviewed By: skcho
Differential Revision: D16895578
fbshipit-source-id: e96d737cc
Summary: Test that cost analysis works with incremental analysis enabled
Reviewed By: ezgicicek
Differential Revision: D16620101
fbshipit-source-id: b41403954
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:
Write a test for the invalidation of changed procedures
Reverse analysis graph for this test: https://fburl.com/graphviz/ybidpidq
The procedures marked as changed are `a` and `d`, and this causes `a,b,c,d,e,main` to be invalidated as expected
Reviewed By: jvillard
Differential Revision: D16579526
fbshipit-source-id: cbec304ce
Summary:
Add test `incremental_analysis_remove_file` to the toplevel makefile so that it is called by `make test` etc
Also swapped the src_before and src_after files so the test checks file removal instead of addition.
Reviewed By: jvillard
Differential Revision: D16562340
fbshipit-source-id: 79bab5f66
Summary:
A test that records the expected output of:
- reverse analysis call graph
- introduced/pre-existing/fixed issues
- cost analysis results
Currently only the call graph is non-empty.
Reviewed By: PhoebeMay
Differential Revision: D16495470
fbshipit-source-id: f186d73d2
Summary: This test wasn't building correctly or being called by the toplevel makefile
Reviewed By: jvillard
Differential Revision: D16458386
fbshipit-source-id: 48a0c2f36
Summary:
The genrule-capture integration with Java relies on a buck config flag `infer.infer_bin=<path to infer>` (see test changes in `DEFS` below).
In a CI environment where the infer binary is checked out under a random directory, this means that the buck genrule is keyed by a random string (the path to infer), and this defeats caching.
Switch to the following contract: the genrule target does not expect a config flag at all. Instead it runs whichever `infer` binary is in the path. To make sure the binary is the same one with the originator, the capture integration runs buck under a modified `PATH` where the originator `infer` is sure to be the first matching entry.
NB cache invalidation is still OK because we rely on `infer.version` buck config flag, which will be hashed into the rulekey.
Reviewed By: jvillard
Differential Revision: D16332696
fbshipit-source-id: 2975d5c26
Summary:
This sometimes fail in our CI, eg:
```
[*ERROR**][66148] file has vanished: "/data/sandcastle/boxes/trunk-git-infer/infer/tests/build_systems/utf8_in_pwd/../codetoanalyze/make/utf8_in_function_names-617be4bc.o.tmp"
```
The issue seems to be that we are too greedy and try and copy files that may
disappear. This diff makes the list of files to copy over explicit to exclude
such temporary files.
Reviewed By: artempyanykh
Differential Revision: D16261872
fbshipit-source-id: 2b080d27a
Summary:
Passing an absolute project path as buck config flag makes buck caching almost impossible for infer artefacts, since on every host/run that directory can be different.
Eliminate that and rely on shell commands to find the project root, executed within the genrule.
Reviewed By: jvillard
Differential Revision: D15963807
fbshipit-source-id: b6e590029
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 started as an attempt to understand how to modify the frontend to
inject destructors for C++ temporaries (see next diffs).
This diff rewrites the existing logic for computing the list of
variables that should be destroyed at the end of each statement, either
because it's the end of their syntactic scope or because control flow
branches outside of their syntactic scope.
The frontend translates a function from the last instructions to the
first, but scope computation needs to be done in the other direction, so
it's done in a separate pass *before* the main translation happens. That
first pass creates a map from statements in the AST to the list of
variables that should be destroyed at the end of these statements. This
is still the case now.
Before, that map would be computed in a bit of a weird way: scopes are
naturally a stack but instead of that the structure maintained was a
flat list + a counter to know where the current scope ended in that
list.
In this diff, redo the computation maintaining a stack of scopes
instead, which is a bit cleaner. Also treat more instructions as
introducing a new scope, eg if, for, ...
Reviewed By: mbouaziz
Differential Revision: D15674208
fbshipit-source-id: c92429e82
Summary:
Somewhat trivial: add a string to "Destruction" nodes to indicate why
they were created. Rename the main `instruction_aux` function into
`instruction_translate` (see next diff for why).
Reviewed By: mbouaziz
Differential Revision: D15674211
fbshipit-source-id: 8a7eda72c
Summary:
Move genrule capture integration logic from shell to OCaml.
Also, stop relying on side-effects of buck compilation for constructing the infer-deps.txt file used for merging. Now this is obtained by passing `--show-output` to buck, which spits out the `buck-out` output paths to the targets we asked to build.
Reviewed By: ezgicicek
Differential Revision: D15715608
fbshipit-source-id: 8fa896ba6
Summary:
When multiple buck java tests use the same `buck-out` they sometimes fail. This isn't surprising, as they presumably clobber each other's output when running on the same files.
Since there is no reason to have this global, shared buck repo, create one for each test, inside the test directory. Also, clean up the Makefiles a bit -- they provide bogus compile targets, for example, and have mostly wrong source dependencies.
That done, remove the `testlock` crutch which enforces mutual exclusion between tests, from the buck/java tests.
I do not understand why the buck clang tests can share the global repo without failure, but there you go.
Reviewed By: jvillard
Differential Revision: D15579133
fbshipit-source-id: 7eff79173
Summary: The previous commit broke the `--foo arg` case because it matched `--foo` in the case looking for `--foo=`.
Reviewed By: mbouaziz
Differential Revision: D15670472
fbshipit-source-id: ab81c7357
Summary:
- take advantage more structured attributes in the exported AST
- circumvent new format of `if` and `switch`
- a few new features/nodes but nothing major there
update-submodule: facebook-clang-plugins
Reviewed By: mbouaziz, martintrojer
Differential Revision: D15453572
fbshipit-source-id: c0c24345f
Summary:
Somehow clang now chooses slightly different arguments to pass to `ld`
in the invocation that `ndk-build` makes to link:
```
--- clang7 2019-05-28 07:47:19.214949009 -0700
+++ clang8 2019-05-28 07:46:55.095924374 -0700
@@ -1,6 +1,15 @@
"/opt/android_ndk/r15c/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld"
"--sysroot=/opt/android_ndk/r15c/platforms/android-21/arch-arm64"
+"-EL"
"--fix-cortex-a53-843419"
+"-z"
+"now"
+"-z"
+"relro"
+"-z"
+"max-page-size=4096"
+"--hash-style=gnu"
+"--hash-style=both"
"--no-add-needed"
"--enable-new-dtags"
"--eh-frame-hdr"
@@ -32,7 +41,7 @@
"--fatal-warnings"
"-lc"
"-lm"
-"-lstdc++"
+"-lc++"
"-lm"
"-lgcc"
"-ldl"
```
In particular:
- `lc++` results in `libc++.so` not found from the toolchain
- the forced relocation `-z relro` fails with "/..//bin/ld: ./obj/local/arm64-v8a/objs/hello/__/hello.o: Relocations in generic ELF (EM: 183)" and other weirder errors
Somehow pretending the C++ compiler is `clang` instead of `clang++` stops the insanity.
Also add an Application.mk file to specify some sane defaults.
Also add `V=1` to the `ndk-build` invocation in our tests so that when it fails we have a bit more to work with.
Reviewed By: mbouaziz, martintrojer
Differential Revision: D15518447
fbshipit-source-id: 40203814b
Summary:
Enabling starvation by default (D15158597) makes infer double report racerd
issues in these tests. The reason seems to be that both racerd and starvation
use `IssueLog` to record issues, so racerd records its issues there (using side
effects), then starvation adds its own (empty) set of issues and reports
whatever is there again. Since nothing cleans up the IssueLog in the middle,
racerd issues get reported twice: once as racerd issues and the other as
starvation issues.
Let's fix this later, for now just unbreak the test itself.
Reviewed By: mbouaziz, ngorogiannis
Differential Revision: D15277552
fbshipit-source-id: 3e7be8795
Mitya Lyubarskiy
Ezgi Çiçek
Dulma Churchill
Nikos Gorogiannis
Phoebe Nichols
Jules Villard
Martin Trojer
Josh Berdine
Dino Distefano
Jeremy Dubreil