Summary:
As part of enabling substitution of arguments into lock names in summaries, and potentially changing the equality relation over locks (so that we can eventually make equal `x.f.g` and `this.f.g` for example), the lock type needs to be elaborated so that the root of an access path is classified into:
- global variables are clearly separated from all other classes (invariant to substitution)
- class objects are also separate (also invariant, but identified by type)
- all other parameters remember their positional index (so that substitution becomes easier)
For now the comparison/equality is kept identical, so as to make easy CI comparisons.
Reviewed By: skcho
Differential Revision: D19232577
fbshipit-source-id: 0cd6a43db
Summary: Before going to a new lock representation that will allow, eg, substitutions with arguments for parameters on method calls, make the interface of the lock type abstract to ease the transition.
Reviewed By: mityal
Differential Revision: D19309359
fbshipit-source-id: 5277357ee
Summary:
Now that they are uncurried, congruence closure does not need the
order of subterms to be preserved. Sorting them reduces redundancy in
case the same equality in different orders is encountered, and
improved printing.
Reviewed By: ngorogiannis
Differential Revision: D19221875
fbshipit-source-id: c6bf4ccad
Summary:
Equality.classes was assuming a simpler representation, and was
incomplete as a result.
The 'representative' map is not kept in a normalized form, where
subterms are necessarily representatives. Therefore, applying the
representative map to subterms of terms in a class can reveal new
elements of the class. This mirrors how the `lookup` function in
`normalize` works.
Reviewed By: ngorogiannis
Differential Revision: D19221868
fbshipit-source-id: 4a2ed6d3f
Summary:
Demonstrate that the per-file type environments don't prevent
the deadlock report here. The fear was that when the analyser
tries to locate the methods of the endpoint class, it might fail to
do so because the types might be stored in different type
environments (per file).
Reviewed By: mityal
Differential Revision: D19225908
fbshipit-source-id: 097e4aeea
Summary: This diff use actuall call path in the cost results instead of `class name + method name`.
Reviewed By: ngorogiannis
Differential Revision: D19194969
fbshipit-source-id: b72018586
Summary:
Model array length in Java as returning an unknown interval [0, +inf] for now.
Ideally, we can deal with the size in a more precise manner in the future like in InferBo.
Reviewed By: skcho
Differential Revision: D19312123
fbshipit-source-id: 8c51059a4
Summary:
Reduce redundancy by printing adjacent segments as if they had been
concatenated together.
Reviewed By: ngorogiannis
Differential Revision: D19221881
fbshipit-source-id: 613105864
Summary:
This diff does a refactoring on the function that gets summary from DB,
`get_proc_summary_and_formals`.
* It separates the function into `get_summary` and `get_formals`, and
* renames `Checker.get_proc_summary` to `get_checks_summary`
Reviewed By: ngorogiannis
Differential Revision: D19300136
fbshipit-source-id: d28eaf16d
Summary:
Also, previous code was sometimes inconsistent regarding whether to
enumerate all subterms or only toplevel terms.
Reviewed By: ngorogiannis
Differential Revision: D19221873
fbshipit-source-id: e8644098b
Summary: It is easier to understand the order of args with diff_inter.
Reviewed By: ngorogiannis
Differential Revision: D19221869
fbshipit-source-id: b29ac83c8
Summary:
Add some test cases from Reuss and Shankar for equality that are
mishandled by Shostak's original algorithm.
Reviewed By: ngorogiannis
Differential Revision: D19221880
fbshipit-source-id: a6f9d51e3
Summary:
This diff creates missing result directories in its running.
The problem was that `infer-out/captured` and its sub-directories were not ready at the step 3 below, which crashed with exceptions.
1. `infer capture -- [target build]`
2. `infer analyze --merge`
3. `infer analyze --merge --debug --reanalyze --procedures-filter '.*foo.*'`
Reviewed By: ngorogiannis
Differential Revision: D19274672
fbshipit-source-id: af84000d7
Summary: Pulse doesn't care about exceptions yet. With Exceptional CFG, java analysis takes a lot of time due to having many disjuncts. Let's use Normal CFG for now.
Reviewed By: jvillard
Differential Revision: D19194479
fbshipit-source-id: f94bb6078
Summary:
Kill these tests as that mode is not supported anymore.
Note that :
- "buck_cross_module" was effectively already dead since it's not hooked up to `make test`
- "buck" is actually another copy of "genrule" so wasn't testing anything
Reviewed By: ngorogiannis
Differential Revision: D19176166
fbshipit-source-id: b5bb90448
Summary:
This changes how we select amongst our (currently) 4 Buck integrations
for Java and clang, as well as how the user's choice is reflected by the
Config module.
The old command line interface is still supported but is now deprecated.
The changes in how to select each integration are:
- clang via "flavors", activated with `--flavors`, now with `--buck-clang`
- clang via "compilation DB", activated with `--buck-compilation-database`, unchanged
- Java via "genrule", activated with `--genrule-master-mode`, now with `--buck-java`
- Java "without genrules", used to be activated by *not specifying any other Buck mode*, unchanged
Instead of various `Config` flags corresponding to the previous CLI that
are allowed in any combination of `flavors`,
`buck_compilation_database`, `genrule_master_mode`, `Config` now exposes
a single `buck_mode` datatype. This allows, eg, `flavors` to override
`buck_compilation_database` if needed. It will also make it easier to
get rid of the old "Java without genrules" integration in a later diff
(see inline comments).
Reviewed By: ngorogiannis
Differential Revision: D19175686
fbshipit-source-id: 29b3831be
Summary:
We cannot necessarily know if the previous capture phase was java or
clang, hence to be on the safe side we should always merge the global
tenvs when merging Buck targets.
Reviewed By: ngorogiannis
Differential Revision: D19175685
fbshipit-source-id: 8e7492e14
Summary:
This generates a lot of code (the datatype is not trivial) and
transitively requires other datatypes to have compare functions, just so
we can then ask whether the mode is "Analyze".
Reviewed By: ngorogiannis
Differential Revision: D19164589
fbshipit-source-id: be6a12b41
Summary:
Infer would crash when started in a context where it already had
children it didn't know about.
Reviewed By: martintrojer
Differential Revision: D19177589
fbshipit-source-id: 0c8831597
Summary:
In order to improve the impurity analysis, this diff adds models for
- `hasNext()` and - `Object.equals()` modeled as returning a non-deterministic value (havoc_id)
- `next()` modeled as `StdVector.get` with a fresh index
- `iterator` modeled as just returning the underlying list
Reviewed By: jvillard
Differential Revision: D19177392
fbshipit-source-id: 0babb037a
Summary:
This diff updates the relation between iterator (offset) and integer value not only at
assignments (`x += 1`), but also at function calls (`foo()`) that increase integer values by one in
their side effects.
Reviewed By: ezgicicek
Differential Revision: D19163214
fbshipit-source-id: 47e52f939
Summary: This diff extends the domain to express the relation between iterator's offset and integer value.
Reviewed By: ezgicicek
Differential Revision: D19143670
fbshipit-source-id: 6223bc934
Summary:
Old versions of sawja/javalib got the line numbers slightly wrong. The workaround was to do a regexp search in the source file for the right line.
My understanding is that this is no longer necessary. This diff removes it.
Reviewed By: jvillard
Differential Revision: D19033415
fbshipit-source-id: 2da19d66d
Summary:
From a set of classes [classes], JClasspath.load_program builds a
program. This program contains (implicitely) the set of active classes
and we should not keep using the set [classes] and the generated
program as the same time, because they may not be synched
anymore. (In particular, in a forthcoming diff load_program may add
new classes during program construction)
This patch forces this discipline. It adds a [in_classes]
query for programs and makes sure we use it everywhere we should.
Reviewed By: ngorogiannis
Differential Revision: D18833335
fbshipit-source-id: a522f320c
Summary:
This is an optimization. We ask the user to tell us which states are nondeterministic, and we
generate code that handle nondeterminism only for those states. It is common for only one state per
TOPL property to be nondeterministic. This speeds up the biabduction-analysis of the monitor by a
factor of ~10. But, using the monitor is only a little faster.
Facebook
Reviewed By: jvillard
Differential Revision: D19160286
fbshipit-source-id: 4dd39769a
Summary:
The re-execution phase uses only the preconditions found by the footprint phase. Thus, Infer should
not spend time optimizing POSTconditions. These are used only to find custom errors.
Reviewed By: jvillard
Differential Revision: D19035495
fbshipit-source-id: d52b82733
Summary:
Move most of IR/Sil.ml into a new file biabduction/Predicates.ml to
reflect the fact that they are only useful for the biabduction analysis.
Unfortunately this is a huge change.
I tried to keep the change to a minimum, it's mostly about doing
s/Sil/Predicates/ in lots of places but sometimes I used the trick of
specifying parameters or return value types to avoid specifying the
module altogether. This isn't done consistently because there were just
too many places to change for poor me.
Reviewed By: ngorogiannis
Differential Revision: D19158530
fbshipit-source-id: d6dbcfe72
Summary:
hmmhmmhmm
Also `Sil.hpred` is going to move out of IR/ in a few diffs, into
biabduction/ where it belongs.
Reviewed By: ngorogiannis
Differential Revision: D19158535
fbshipit-source-id: e2a889ee2
Sungkeun Cho
Nikos Gorogiannis
Fernando Gasperi Jabalera
Josh Berdine
Ezgi Çiçek
Artem Pianykh
Jules Villard
David Pichardie
Radu Grigore