Summary: public
Update facebook-clang-plugins. Changes:
- [major] new clang
- dump class template instantiations
- change naming for qual names of anonymous structs
Changes are due to:
1. Different setter properties are exported for defaults (more correct). Fix the test that was wrong
2. New unary operator type
3. Naming for qual names changed
Reviewed By: jvillard
Differential Revision: D2685734
fb-gh-sync-id: f2c568a
Summary: public
Use the analysis summary to store call stacks from PerformanceCritical-annotated methods to Expensive-annotated methods.
This use the on demand scheduling in order to make sure that the summary of the callee is always analyzed before the callers.
Reviewed By: cristianoc
Differential Revision: D2685347
fb-gh-sync-id: ab403d9
Summary: public
With this change, it will be possible to pass to InferAnalyze a list of folders to be
searched for spec files, through a file containing those paths, separated by the newline
character.
For example, if there's a `PathList.txt` file containing
/path/to/specs/folder1
/path/to/specs/folder2
/path/to/specs/folder3
Then invoking `infer --specs-dir-list-file PathList.txt [--other_args, ...] -- <build_cmd>`
will instruct the analyzer to lookup to those three folders whenever it searches for specs.
It's important to note that since the analyzer runs in parallel from different locations, it's necessary to pass **absolute** paths, or the analyzer will fail with an error.
Reviewed By: jvillard
Differential Revision: D2668700
fb-gh-sync-id: b407a57
Summary: public
Translate C++ overloaded operator calls. AST of their children looks slightly differently
which means that we have to be more permissive in params_trans.exps.
Difference:
CXXMemberCallExpr:
MemberExpr:
'ThisExpr' (it's part of method decl ref evaluation)
MethodDeclRef
Param1
Param2
...
CXXOperatorCallExpr
MethodDeclRef/FunctionDeclRef
'ThisExpr' (it's part of parameters list evaluation)
Param1
Param2
...
Reviewed By: dulmarod
Differential Revision: D2679503
fb-gh-sync-id: 1437f73
Summary: public
For some reason OpaqueValueExpr has extra field with subexpressions. Visit it when assigning location information
Reviewed By: dulmarod
Differential Revision: D2674708
fb-gh-sync-id: b91e142
Summary: public
We forgot that BlockExpr has BlockDecl inside, we need to visit it as well and assign proper location information to block body
Reviewed By: dulmarod
Differential Revision: D2565045
fb-gh-sync-id: c821a28
Summary: public
Add support for translation and calling c++ static methods.
They can be called in two ways:
ClassName::method()
classInstance.method()
Both of them have the same meaning, but AST produced is different
Reviewed By: dulmarod
Differential Revision: D2636489
fb-gh-sync-id: 9294a3f
Summary: public
I previously change this for transitive calls to Expensive-annotated methods but forgot to do the same when enforcing the subtyping rules
Reviewed By: cristianoc
Differential Revision: D2667142
fb-gh-sync-id: 0de5a34
Summary: public Plugin already exports fully qualified name, we don't need
to reconstruct it in ocaml again.
It wasn't used anywhere so this diff shouldn't change any behavior
Reviewed By: dulmarod
Differential Revision: D2668588
fb-gh-sync-id: 1ed1d61
Summary: public
New qual_name exporting logic in facebook-clang-plugins handles anonymous
classes in much better way. This allows us to simplify name generation for
classes that don't rely on a type of the object (which could be wrong for
methods from superclasses).
Reviewed By: dulmarod
Differential Revision: D2663810
fb-gh-sync-id: 08146b8
Summary: public
The static and global variables used in blocks don't appear in the ast as captured.
We need them however to try and find retain cycles involving those variables.
This diff adds a way of collecting the static variables used in blocks and treat them
like we treat other captured variables to find retain cycles.
Reviewed By: ddino
Differential Revision: D2663727
fb-gh-sync-id: d5b44ec
Summary: public Fix oversight where fields of base classes were
not exported.
Reviewed By: dulmarod
Differential Revision: D2652218
fb-gh-sync-id: 75b93ed
Summary: public
When method was called from within other method,
the type of `this` parameter didn't have pointer in type.
This was due to wrong logic that stripped pointer out of the
type.
We still need to strip the type when dereferencing reference variable.
Reviewed By: dulmarod
Differential Revision: D2652012
fb-gh-sync-id: 44552ac
Summary: public so that we don't get thousands of memory leaks in debug mode.
We will still get them if we pass ml_bucket internal.
Reviewed By: jvillard
Differential Revision: D2648200
fb-gh-sync-id: 8dce66f
Summary: public
Move dealing with init expressions from VarDecl_trans to standalone function.
This will be useful for constructor initializer.
I didn't improve anything, just moved stuff around so that no test breaks.
Main change is that we pass Sil code responsible for LHS (var dereference) as
result_trans.
Currently we assume that var_result_trans will have no nodes, no instructions,
no ids. This is true for current usages (it's always Sil.Lvar expression), but in the future it
will change.
Reviewed By: dulmarod
Differential Revision: D2647108
fb-gh-sync-id: cae60b6
Summary: public Categories are now also only translated on demand.
For this we needed links from the class to the categories which we have
now.
Reviewed By: akotulski
Differential Revision: D2647072
fb-gh-sync-id: 4afdf5f
Summary: public
Load and store the inferred attributes on the analysis summaries. The next step is to use the call stack from performance critical methods to expensive methods form the summary payload instead of modifying the attributes.
Reviewed By: sblackshear, cristianoc
Differential Revision: D2644530
fb-gh-sync-id: b99a8e3
Summary: public
returnStmt_trans adds all ids and instrs to its node. It shouldn't return them to parent then.
Reviewed By: dulmarod
Differential Revision: D2636829
fb-gh-sync-id: eb554b9
Summary: public This diff changes the way we treat enums in Infer.
1. The semantics of the translation is now correct, it was a bit incorrect before.
2. We don't add the enum types to the tenv anymore, which saves a lot of disk space
and avoids errors in the backend dealing with the enum type.
Reviewed By: akotulski
Differential Revision: D2641903
fb-gh-sync-id: 6295e5f
Summary: public
We should be able to distinguish if a method is annotated with Expensive and has been automatically annotated as calling an expensive method using internally the annotation CallsExpensive in the later case.
Reviewed By: cristianoc
Differential Revision: D2640478
fb-gh-sync-id: 32a7ee9
Summary: public
This adds the following subtyping rules:
- methods that are not annotated with Expensive cannot be overwritten by a method annotated with Expensive
- methods annotated with PerformanceCritical must be overwitten by method annotated with PerformanceCritical
Reviewed By: cristianoc
Differential Revision: D2636076
fb-gh-sync-id: eb616c9
Summary: public
Just works by running the analysis bottom-up and promoting any method as virtually annotated with `Expensive` whenever one of its callee is annotated with `Expensive`
Reviewed By: cristianoc
Differential Revision: D2635242
fb-gh-sync-id: 4401be6
Summary: public
The jar file of the models was opened twice before. This should reduce a little bit the IO of the capture.
Reviewed By: cristianoc
Differential Revision: D2626251
fb-gh-sync-id: 310bef4
Summary: public
When analysing projects we would not always display the numbers of procs and
files analysed. This fixes it, and also prints the stats before the reports for
readability. This way we also don't need to print "Analysis done" anymore.
Before:
$ infer -- gcc -c hello.c
Starting analysis (Infer version git-436690cf022a16313dda8447121a5934529e6e5c)
Analysis done
hello.c:5: error: NULL_DEREFERENCE
pointer s last assigned on line 4 could be null and is dereferenced at line 5, column 3
3. void test() {
4. int *s = NULL;
5. > *s = 42;
6. }
After:
$ infer -- gcc -c hello.c
Starting analysis (Infer version git-5b7ff3ac10d58e7ffd17c44574ab330ed07cb188)
Computing dependencies... 100%
Analyzing 1 cluster. 100%
Analyzed 1 procedure in 1 file
Found 1 issue
hello.c:5: error: NULL_DEREFERENCE
pointer s last assigned on line 4 could be null and is dereferenced at line 5, column 3
3. void test() {
4. int *s = NULL;
5. > *s = 42;
6. }
Also looked at the results on buck and gradle
Reviewed By: cristianoc
Differential Revision: D2636991
fb-gh-sync-id: 32b9a7c
Summary: public
This cleans up the output of infer. Before:
$ touch empty.c
$ infer -- gcc -c empty.c
Starting analysis (Infer version git-436690cf022a16313dda8447121a5934529e6e5c)
Analysis done
No issues found
$ infer -- javac Hello.java
Starting analysis (Infer version git-436690cf022a16313dda8447121a5934529e6e5c)
Analysis done
Hello.java:4: error: NULL_DEREFERENCE
object s last assigned on line 3 could be null and is dereferenced at line 4
2. int test() {
3. String s = null;
4. > return s.length();
5. }
6. }
Analyzed 2 procedures in 1 file
$
After:
$ infer -- gcc -c empty.c
Starting analysis (Infer version git-434faa7f70f6b9498615d3ead8c12bcfec6fc553)
Analyzing 0 clusters
Analysis done
No issues found
$ infer -- javac Hello.java
Starting analysis (Infer version git-434faa7f70f6b9498615d3ead8c12bcfec6fc553)
Computing dependencies... 100%
Analyzing 1 cluster. 100%
Analysis done
Found 1 issue
Hello.java:4: error: NULL_DEREFERENCE
object s last assigned on line 3 could be null and is dereferenced at line 4
2. int test() {
3. String s = null;
4. > return s.length();
5. }
6. }
Analyzed 2 procedures in 1 file
$
Also tested with buck, gradle.
Reviewed By: cristianoc
Differential Revision: D2636969
fb-gh-sync-id: 52f06f0
Summary: public
C++ allows to have one variable declared+initialized as a condition statement.
Handle these cases properly for `if` and `while` statements.
Reviewed By: dulmarod
Differential Revision: D2625774
fb-gh-sync-id: bac95b8
Summary: public
This is an initial version of the Expensive checker which only report violations on direct calls. The main objective is to setup all the files for this new checker.
The next steps are:
1) run the checker in interprocedural mode
2) Save in the summary of a method foo() the annotation attribute Expensive if a direct callee of foo is annotated with Expensive
3) Check that Expensive is enforced by subtyping, i.e. check that non-expensive method cannot be overwritten by a method annotated with Expensive
Reviewed By: cristianoc
Differential Revision: D2629947
fb-gh-sync-id: 0e06f85
Summary: public
Adding a progress bar to the analysis phase to check progress.
The progress bar for the analysing procedures part is just printing dots at the moment and will be
improved soon when we do all the multithreading inside Ocaml.
There is also a no_progress_bar option in the scripts to hide it, for instance in CI.
Reviewed By: cristianoc
Differential Revision: D2625763
fb-gh-sync-id: daf6f96
Summary: public
This is a non-functional refactoring to add a flag to trigger the translation of the procedure description of callees. This allows to check in which cases we still need to procedure description of callees to run the analysis.
Reviewed By: cristianoc
Differential Revision: D2620402
fb-gh-sync-id: 7ef5b5f
Summary: public
Translate CXXConstructExpr that are parts of variable initialization.
Reviewed By: dulmarod
Differential Revision: D2570750
fb-gh-sync-id: 708a457
Summary: public
Type of `this` argument to c++ method call has pointer type.
It's either raw pointer (for `->`) or reference (for `.`).
It was already correct in method declaration and method parameters, but it wasn't correct in method calls. Same thing will apply to constructor expressions.
As a result of this change, we won't expand type when calling methods.
Change to ast_expressions.ml fixes problem with autogenerating getters/setters that produced lvalue types after LValueToRValue cast.
Reviewed By: dulmarod
Differential Revision: D2605756
fb-gh-sync-id: 1027600
Summary: public
The context leaks were reported multiple times. If a leaks was found on method `f()` and `g()` calls `f()`, then the same leak was report both in `f()` and in `g()`.
Reviewed By: sblackshear
Differential Revision: D2598110
fb-gh-sync-id: ca90b57
Summary: public Translate classes and protocols on demand only.
This saves space in the tenv and time. The categories still cannot be translated on demand
because there is no pointer to them from the classes. Andrzej is fixing that.
We had to make cTypes_Decl and the modules for translating classes, protocols and categories mutually
recursive. Moreover, we had to reorder the method for adding classes to the tenv to receive a decl and
return a type.
Reviewed By: ddino
Differential Revision: D2595610
fb-gh-sync-id: ca76068
Summary: public
Extends the current activity leak checker to all sort of context leaks.
Reviewed By: sblackshear
Differential Revision: D2572548
fb-gh-sync-id: 9da18e4
Andrzej Kotulski
jrm
Sam Blackshear
martinoluca
Dulma Rodriguez
Dino Distefano
Jules Villard
Cristiano Calcagno