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:
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:
The synthetic methods from `topl.Property` are now nonempty: they
simulate a nondeterministic automaton.
Reviewed By: jvillard
Differential Revision: D15668471
fbshipit-source-id: 050408283
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:
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: Not sure how that happens but it does. Instead of crashing, log the error and continue.
Reviewed By: martintrojer
Differential Revision: D15660008
fbshipit-source-id: c87e724d4
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: There's currently no way to skip these when they are passed to clang.
Reviewed By: martintrojer
Differential Revision: D15669132
fbshipit-source-id: be97d2638
Summary:
It is unsafe to call protocol methods defined optional. Before calling them we should check it
the implementation exists by calling
`if ([object respondsToSelector:selector(...)]) ...`
Without the above check we get run time crashes.
Reviewed By: jvillard
Differential Revision: D15554951
fbshipit-source-id: f0560971b
Summary: In its new form it actually tests that infer takes the correct branch.
Reviewed By: mbouaziz
Differential Revision: D15494297
fbshipit-source-id: 7b9bb8f75
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:
- Rename `invariantModels` to `purityModels`
- Track which arguments are modified in purity models. Before we were invalidating all arguments of impure modeled functions. Instead, now we only invalidate modified args given in the model. This should ideally result in more precision in the analysis.
- Add some more purity models for :`cast`, `new`, `new_array` and `Math.random`
Reviewed By: mbouaziz
Differential Revision: D15535332
fbshipit-source-id: 5395800d9
Summary:
That test wasn't hooked up to `make test` and so regressed at some
unknown time in the past. Just recording the new state of things for
now.
Reviewed By: ngorogiannis
Differential Revision: D15495234
fbshipit-source-id: 14fb112de
Summary:
Infer was complaining about a parameter not null checked, which was failing the
model compilation since no errors are allowed on models.
Reviewed By: ezgicicek
Differential Revision: D15453573
fbshipit-source-id: 3bd0df715
Josh Berdine
Nikos Gorogiannis
Ezgi Çiçek
Radu Grigore
Jules Villard
Martin Trojer
Dino Distefano
Peter O'Hearn
Jeremy Dubreil