Summary:public
Refactor Utils.SymOp into a separate module, bringing the failure_kind
type and associated operations.
Reviewed By: cristianoc
Differential Revision: D3161640
fb-gh-sync-id: be3d7c9
fbshipit-source-id: be3d7c9
Summary:public
Eliminate the use of the -open Utils command line option passed to the compiler in favor of `open! Utils` in each source file. While slightly convenient, this option causes more headaches than it is worth with other tools e.g. merlin.
Reviewed By: jvillard
Differential Revision: D3168193
fb-gh-sync-id: 4285ef6
fbshipit-source-id: 4285ef6
Summary:public
Allow the value of the INFER_ONDEMAND_FILE environment variable to be
either an absolute path, or relative to the project root.
Likewise, allow the entries in the file determined by
INFER_ONDEMAND_FILE to be either absolute or relative to the project
root. Note, however, that if they are absolute but not under the
project root, they will not be found.
Reviewed By: cristianoc
Differential Revision: D3098489
fb-gh-sync-id: e861300
fbshipit-source-id: e861300
Summary:public
In order to implement the lazy dynamic dispatch algorithm, we need to generate a procedure description based on the types encountered during the symbolic execution. This diff adds support for analyzing such a prodecure description directly, without having to first serialize it to disk, which is slow and not necessary.
Reviewed By: cristianoc
Differential Revision: D3028226
fb-gh-sync-id: 1b2360e
shipit-source-id: 1b2360e
Summary:public
Cleanup toplevel of InferAnalyze:
- Make the toplevel flow of InferAnalyze more explicit (no exit).
- Always tear down the logging at the end.
- Fix printing of stats to include only the files actually analyzed with --reactive.
- In the progress bar, print F for files and . for procedures.
Example outputs:
Starting analysis (Infer version v0.7.0-b2fb8fc)
F.....
Analyzed 1 file
where it can say 0 if no file was modified.
Or F without dots if a file was modified but no procedure was.
Reviewed By: sblackshear, jvillard
Differential Revision: D3016934
fb-gh-sync-id: 32cf89c
shipit-source-id: 32cf89c
Summary:public
Lazy dynamic dispatch handling works as follows:
Assuming a call of the form:
foo(a);
where the static type of `a` is `A`. If during the symbolic execution, the dynamic type of the variable `a` is `B` where `B <: A`, then we create on-demand a copy `foo(B)` of `foo(A)` where all the uses of the typed parameter `a` are replaced with a parameter of type `B`. Especially, if `foo` contains virtual call, say `get` where `a` is the receiver, then the call gets redirected to the overridden method in `B`, which simulates the runtime behavior of Java.
This lazy dynamic dispatch mode is only turn on for the tracing mode for now in order to avoid conflicts with sblackshear's approach for sound dynamic dispatch.
Reviewed By: sblackshear
Differential Revision: D2888922
fb-gh-sync-id: 3250c9e
shipit-source-id: 3250c9e
Summary:public
Remove back-end infrastructure that exists only when on-demand mode is disabled.
This, together with removing a few command-line options, sheds a lot of weight in the back-end.
No changes expected for on-demand mode.
Reviewed By: sblackshear
Differential Revision: D2960242
fb-gh-sync-id: 220d821
shipit-source-id: 220d821
Summary:public
Revamped Timeout module by storing elapsed wallclock seconds, and the status of symops, in case of recursive calls.
Extended the API with suspend() and resume() to pause and resume the current timeout.
These are used before and after an on-demand call to the analysis functions.
This achieves the effect that each procedure, even though is interrupted, has its own time and symop counters, which are suspended and resumed as required.
Reviewed By: jeremydubreil
Differential Revision: D2976918
fb-gh-sync-id: 0ed1079
shipit-source-id: 0ed1079
Summary:public
I have seen enough comments in this space by people during code review to switch on the analyses the compiler can already do. This diff is an automated renaming of unused identifiers to _, with a few additional changes made when reading the diff of the results for things that stood out as particularly strange. This base-lines all of the existing warnings. I'm not sure this is a good idea, since it might be better for those familiar with each part of the code to look at these warnings and use them as pointers to suspicious code.
Reviewed By: jeremydubreil
Differential Revision: D2938376
fb-gh-sync-id: 6e67817
shipit-source-id: 6e67817
Summary:
public
This diff fixes a race condition where errors found in a procedure by one checker could be overwritten by running on demand the analysis of the same procedure with another checker.
Reviewed By: cristianoc
Differential Revision: D2847308
fb-gh-sync-id: 4f0c78e
Josh Berdine
Dulma Churchill
Cristiano Calcagno
jrm