Commit Graph

22 Commits

Author SHA1 Message Date
George Karpenkov
70ec1dd14d [analyzer] Do not run visitors until the fixpoint, run only once.
In the current implementation, we run visitors until the fixed point is
reached.
That is, if a visitor adds another visitor, the currently processed path
is destroyed, all diagnostics is discarded, and it is regenerated again,
until it's no longer modified.
This pattern has a few negative implications:

 - This loop does not even guarantee to terminate.
   E.g. just imagine two visitors bouncing a diagnostics around.
 - Performance-wise, e.g. for sqlite3 all visitors are being re-run at
   least 10 times for some bugs.
   We have already seen a few reports where it leads to timeouts.
 - If we want to add more computationally intense visitors, this will
   become worse.
 - From architectural standpoint, the current layout requires copying
   visitors, which is conceptually wrong, and can be annoying (e.g. no
   unique_ptr on visitors allowed).

The proposed change is a much simpler architecture: the outer loop
processes nodes upwards, and whenever the visitor is added it only
processes current nodes and above, thus guaranteeing termination.

Differential Revision: https://reviews.llvm.org/D47856

llvm-svn: 335666
2018-06-26 21:12:08 +00:00
Alexander Kornienko
2a8c18d991 Fix typos in clang
Found via codespell -q 3 -I ../clang-whitelist.txt
Where whitelist consists of:

  archtype
  cas
  classs
  checkk
  compres
  definit
  frome
  iff
  inteval
  ith
  lod
  methode
  nd
  optin
  ot
  pres
  statics
  te
  thru

Patch by luzpaz! (This is a subset of D44188 that applies cleanly with a few
files that have dubious fixes reverted.)

Differential revision: https://reviews.llvm.org/D44188

llvm-svn: 329399
2018-04-06 15:14:32 +00:00
George Karpenkov
d703ec94a9 [analyzer] introduce getSVal(Stmt *) helper on ExplodedNode, make sure the helper is used consistently
In most cases using
`N->getState()->getSVal(E, N->getLocationContext())`
is ugly, verbose, and also opens up more surface area for bugs if an
inconsistent location context is used.

This patch introduces a helper on an exploded node, and ensures
consistent usage of either `ExplodedNode::getSVal` or
`CheckContext::getSVal` across the codebase.
As a result, a large number of redundant lines is removed.

Differential Revision: https://reviews.llvm.org/D42155

llvm-svn: 322753
2018-01-17 20:27:29 +00:00
Erik Verbruggen
49db030626 [analyzer] Add annotation for functions taking user-facing strings
There was already a returns_localized_nsstring annotation to indicate
that the return value could be passed to UIKit methods that would
display them. However, those UIKit methods were hard-coded, and it was
not possible to indicate that other classes/methods in a code-base would
do the same.

The takes_localized_nsstring annotation can be put on function
parameters and selector parameters to indicate that those will also show
the string to the user.

Differential Revision: https://reviews.llvm.org/D35186

llvm-svn: 308012
2017-07-14 10:24:36 +00:00
Artem Dergachev
928d72fa36 [analyzer] LocalizationChecker: Support new localizable APIs.
Add support for new methods that were added in macOS High Sierra & iOS 11
and require a localized string.

Patch by Kulpreet Chilana!

rdar://problem/32795210
Differential Revision: https://reviews.llvm.org/D34266

llvm-svn: 305896
2017-06-21 11:12:07 +00:00
David Blaikie
0a0c275ffd Migrate PathDiagnosticPiece to std::shared_ptr
Simplifies and makes explicit the memory ownership model rather than
implicitly passing/acquiring ownership.

llvm-svn: 291143
2017-01-05 17:26:53 +00:00
Devin Coughlin
184996bbb4 [analyzer] Use lazily created buffer in EmptyLocalizationContextChecker
Fix a crash when relexing the underlying memory buffer to find incorrect
arguments to NSLocalizedString(). With precompiled headers, the raw
buffer may be NULL. Instead, use the source manager to get the buffer,
which will lazily create the buffer for precompiled headers.

rdar://problem/27429091

llvm-svn: 280174
2016-08-30 23:07:14 +00:00
Devin Coughlin
1502511ca8 [analyzer] Update APIs taking user-facing strings.
Add new APIs that require localized strings and remove two APIs that were
incorrectly marked as requiring a user-facing string.

A patch by Kulpreet Chilana!

Differential Revision: https://reviews.llvm.org/D22926

llvm-svn: 277273
2016-07-30 16:16:51 +00:00
Mehdi Amini
9670f847b8 [NFC] Header cleanup
Summary: Removed unused headers, replaced some headers with forward class declarations

Patch by: Eugene <claprix@yandex.ru>

Differential Revision: https://reviews.llvm.org/D20100

llvm-svn: 275882
2016-07-18 19:02:11 +00:00
Devin Coughlin
97dc0c8c29 [analyzer] Add path note for localizability checker.
Add a path note indicating the location of the non-localized string
literal in NonLocalizedStringChecker.

rdar://problem/25981525

llvm-svn: 267924
2016-04-28 19:44:40 +00:00
Vedant Kumar
409506ea07 Simplify users of StringRef::{l,r}trim (clang) (NFC)
r260925 introduced a version of the *trim methods which is preferable
when trimming a single kind of character. Update all users in clang.

llvm-svn: 260927
2016-02-16 02:14:44 +00:00
Devin Coughlin
084e363517 [analyzer] Suppress localization diagnostics in debug classes and methods.
If the class or method name case-insensitively contains the term "debug",
suppress warnings about string constants flowing to user-facing UI APIs.

llvm-svn: 259875
2016-02-05 04:22:15 +00:00
Devin Coughlin
0500c70beb [analyzer] Add 'optin' checker package and move localizability checkers into it.
This commit creates a new 'optin' top-level checker package and moves several of
the localizability checkers into it.

This package is for checkers that are not alpha and that would normally be on by
default but where the driver does not have enough information to determine when
they are applicable. The localizability checkers fit this criterion because the
driver cannot determine whether a project is localized or not -- this is best
determined at the IDE or build-system level.

This new package is *not* intended for checkers that are too noisy to be on by
default.

The hierarchy under 'optin' mirrors that in 'alpha': checkers under 'optin'
should be organized in the hierarchy they would have had if they were truly top
level (e.g., optin.osx.cocoa.MyOptInChecker).

Differential Revision: http://reviews.llvm.org/D14303

llvm-svn: 252080
2015-11-04 21:33:41 +00:00
Devin Coughlin
9f21f68bfe [analyzer] Improve localizability checks for iOS / OS X.
Various improvements to the localization checker:
* Adjusted copy to be consistent with diagnostic text in other Apple
  API checkers.
* Added in ~150 UIKit / AppKit methods that require localized strings in
  UnlocalizedStringsChecker.
* UnlocalizedStringChecker now checks for UI methods up the class hierarchy and
  UI methods that conform for a certain Objective-C protocol.
* Added in alpha version of PluralMisuseChecker and some regression tests. False
  positives are still not ideal.

(This is the second attempt, with the memory issues on Linux resolved.)

A patch by Kulpreet Chilana!

Differential Revision: http://reviews.llvm.org/D12417

llvm-svn: 248432
2015-09-23 21:43:21 +00:00
Devin Coughlin
749de2355c Revert "[analyzer] Improve localizability checks for iOS / OS X."
This reverts commit r248350. The pluralization checks are failing on some bots.

llvm-svn: 248351
2015-09-23 00:17:52 +00:00
Devin Coughlin
ab58314357 [analyzer] Improve localizability checks for iOS / OS X.
Various improvements to the localization checker:
* Adjusted copy to be consistent with diagnostic text in other Apple
  API checkers.
* Added in ~150 UIKit / AppKit methods that require localized strings in
  UnlocalizedStringsChecker.
* UnlocalizedStringChecker now checks for UI methods up the class hierarchy and
  UI methods that conform for a certain Objective-C protocol.
* Added in alpha version of PluralMisuseChecker and some regression tests. False
  positives are still not ideal.

A patch by Kulpreet Chilana!

Differential Revision: http://reviews.llvm.org/D12417

llvm-svn: 248350
2015-09-22 23:58:04 +00:00
Ted Kremenek
9589caf04d Add missing newline.
llvm-svn: 246003
2015-08-26 03:11:31 +00:00
Anna Zaks
e5d74caf2a [analyzer] Add checkers for OS X / iOS localizability issues
Add checkers that detect code-level localizability issues for OS X / iOS:
  - A path sensitive checker that warns about uses of non-localized
    NSStrings passed to UI methods expecting localized strings.
  - A syntax checker that warns against not including a comment in
    NSLocalizedString macros.

A patch by Kulpreet Chilana!

(This is the second attempt with the compilation issue on Windows and
the random test failures resolved.)

llvm-svn: 245093
2015-08-14 20:22:22 +00:00
Anna Zaks
9592df7901 Revert "[analyzer] Add checkers for OS X / iOS localizability issues"
This reverts commit fc885033a30b6e30ccf82398ae7c30e646727b10.

Revert all localization checker commits until the proper fix is implemented.

llvm-svn: 244394
2015-08-08 04:53:04 +00:00
Anna Zaks
08f3c1e12a Revert "[analyzer] Fixup to r244389 to make this build on windows."
This reverts commit 57a46a75b408245cf4154a838fe13ad702065745.

Revert all localization checker commits until the proper fix is implemented.

llvm-svn: 244393
2015-08-08 04:52:59 +00:00
Anna Zaks
67c4df8313 [analyzer] Fixup to r244389 to make this build on windows.
llvm-svn: 244390
2015-08-08 02:26:07 +00:00
Anna Zaks
38b496a05d [analyzer] Add checkers for OS X / iOS localizability issues
Add checkers that detect code-level localizability issues for OS X / iOS:
 - A path sensitive checker that warns about uses of non-localized
 NSStrings passed to UI methods expecting localized strings.
 - A syntax checker that warns against not including a comment in
 NSLocalizedString macros.

A patch by Kulpreet Chilana!

llvm-svn: 244389
2015-08-08 01:49:26 +00:00