Commit Graph

8 Commits

Author SHA1 Message Date
Mandeep Singh Grang
7c7ea7d0ae [clang-tools-extra] Format sources with clang-format. NFC.
Summary:
Ran clang-format on all .c/.cpp/.h files in clang-tools-extra.
Excluded the test, unittests, clang-reorder-fields, include-fixer, modularize and pptrace directories.

Reviewers: klimek, alexfh

Subscribers: nemanjai

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D26329

llvm-svn: 286221
2016-11-08 07:50:19 +00:00
Matthias Gehre
dd117cf01d cppcoreguidelines-pro-bounds-constant-array-index: ignore implicit constructor
Summary:
The code

  struct A {
    int x[3];
  };

gets an compiler-generated copy constructor that uses ArraySubscriptExpr (see below).
Previously, the check would generate a warning on that copy constructor.
This commit disables the warning on implicitly generated code.
AST:

  |-CXXConstructorDecl 0x337b3c8 <col:8> col:8 implicit used constexpr A 'void (const struct A &) noexcept' inline
  | |-ParmVarDecl 0x337b510 <col:8> col:8 used 'const struct A &'
  | |-CXXCtorInitializer Field 0x3379238 'x' 'int [3]'
  | | `-ImplicitCastExpr 0x337e158 <col:8> 'int' <LValueToRValue>
  | |   `-ArraySubscriptExpr 0x337e130 <col:8> 'const int' lvalue
  | |     |-ImplicitCastExpr 0x337e118 <col:8> 'const int *' <ArrayToPointerDecay>
  | |     | `-MemberExpr 0x337dfc8 <col:8> 'int const[3]' lvalue .x 0x3379238
  | |     |   `-DeclRefExpr 0x337dfa0 <col:8> 'const struct A' lvalue ParmVar 0x337b510 '' 'const struct A &'
  | |     `-ImplicitCastExpr 0x337e098 <col:8> 'unsigned long' <LValueToRValue>
  | |       `-DeclRefExpr 0x337e070 <col:8> 'unsigned long' lvalue Var 0x337e010 '__i0' 'unsigned long'

Reviewers: alexfh, aaron.ballman

Subscribers: aemerson, nemanjai, cfe-commits

Differential Revision: https://reviews.llvm.org/D22381

llvm-svn: 275993
2016-07-19 17:02:54 +00:00
Matthias Gehre
03fadabe47 cppcoreguidelines-pro-bounds-constant-array-index: crash for value dependent index in c++03 mode
Summary:
When the expression is value dependent,
isIntegerConstantExpr() crashes in C++03 mode with
 ../tools/clang/lib/AST/ExprConstant.cpp:9330: (anonymous namespace)::ICEDiag CheckICE(const clang::Expr *, const clang::ASTContext &):
  Assertion `!E->isValueDependent() && "Should not see value dependent exprs!"' failed.
In C++11 mode, that assert does not trigger.

This commit works around this in the check. We don't check
value-dependent indices and instead check their specialization.

Reviewers: alexfh, aaron.ballman

Subscribers: nemanjai, cfe-commits

Differential Revision: http://reviews.llvm.org/D22190

llvm-svn: 275461
2016-07-14 20:00:48 +00:00
Etienne Bergeron
2a4c00f243 [clang-tidy] Cleanup namespace in utils folder.
Summary:
This is a step forward cleaning up the namespaces in clang-tidy/utils.
There is no behavior change.

Reviewers: alexfh

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19819

llvm-svn: 268356
2016-05-03 02:54:05 +00:00
Etienne Bergeron
456177b98f [clang-tidy] Cleaning namespaces to be more consistant across checkers.
Summary:
The goal of the patch is to bring checkers in their appropriate namespace.
This path doesn't change any behavior.

Reviewers: alexfh

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19811

llvm-svn: 268264
2016-05-02 18:00:29 +00:00
Matthias Gehre
37f10a0c25 [clang-tidy] add check cppcoreguidelines-pro-bounds-constant-array-index
Summary:
This is http://reviews.llvm.org/D13746 but instead of including <array>,
a stub is provided.
This check flags all array subscriptions on static arrays and
std::arrays that either have a non-compile-time-constant index or are
out of bounds.

Dynamic accesses into arrays are difficult for both tools and humans to
validate as safe. array_view is a bounds-checked, safe type for
accessing arrays of data. at() is another alternative that ensures
single accesses are bounds-checked. If iterators are needed to access an
array, use the iterators from an array_view constructed over the array.

This rule is part of the "Bounds safety" profile of the C++ Core
Guidelines, see
https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#-bounds2-only-index-into-arrays-using-constant-expressions

Reviewers: alexfh, sbenza, bkramer, aaron.ballman

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D15030

llvm-svn: 255470
2015-12-13 22:08:26 +00:00
NAKAMURA Takumi
67361cc2e1 Revert r253401, "[clang-tidy] add check cppcoreguidelines-pro-bounds-constant-array-index"
cppcoreguidelines-pro-bounds-constant-array-index.cpp is failing in several hosts.

llvm-svn: 253428
2015-11-18 02:14:35 +00:00
Matthias Gehre
55020566ed [clang-tidy] add check cppcoreguidelines-pro-bounds-constant-array-index
Summary:
This check flags all array subscriptions on static arrays and
std::arrays that either have a non-compile-time-constant index or are
out of bounds.

Dynamic accesses into arrays are difficult for both tools and humans to
validate as safe. array_view is a bounds-checked, safe type for
accessing arrays of data. at() is another alternative that ensures
single accesses are bounds-checked. If iterators are needed to access an
array, use the iterators from an array_view constructed over the array.

This rule is part of the "Bounds safety" profile of the C++ Core
Guidelines, see
https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#-bounds2-only-index-into-arrays-using-constant-expressions

Reviewers: alexfh, sbenza, bkramer, aaron.ballman

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D13746

llvm-svn: 253401
2015-11-17 23:43:20 +00:00