This revision was automatically updated to reflect the committed changes.
Closed by commit rGce2d44b0ab6d: [clang-tidy] Accessing checks not done for
aliases of `std::array` (authored by sousajo, committed by PiotrZSL).
Changed prior to commit:
https://reviews.llvm.org/D154297?vs=536622&id=536805#toc
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D154297/new/
https://reviews.llvm.org/D154297
Files:
clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsConstantArrayIndexCheck.cpp
clang-tools-extra/docs/ReleaseNotes.rst
clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-constant-array-index.cpp
Index:
clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-constant-array-index.cpp
===================================================================
---
clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-constant-array-index.cpp
+++
clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-constant-array-index.cpp
@@ -44,6 +44,28 @@
a[1] = 3; // OK, constant index and inside bounds
a[9] = 3; // OK, constant index and inside bounds
a[const_index(6)] = 3; // OK, constant index and inside bounds
+
+ using MyArray = std::array<int, 10>;
+ MyArray m{};
+ m [ pos / 2 /*comment*/] = 1;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not use array subscript when
the index is not an integer constant expression
[cppcoreguidelines-pro-bounds-constant-array-index]
+ int jj = m[pos - 1];
+ // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use array subscript when
the index is not an integer constant expression
+
+ m.at(pos-1) = 2; // OK, at() instead of []
+ gsl::at(m, pos-1) = 2; // OK, gsl::at() instead of []
+ m[-1] = 3;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: std::array<> index -1 is
negative [cppcoreguidelines-pro-bounds-constant-array-index]
+ m[10] = 4;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: std::array<> index 10 is past
the end of the array (which contains 10 elements)
[cppcoreguidelines-pro-bounds-constant-array-index]
+
+ m[const_index(7)] = 3;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: std::array<> index 10 is past
the end of the array (which contains 10 elements)
+
+ m[0] = 3; // OK, constant index and inside bounds
+ m[1] = 3; // OK, constant index and inside bounds
+ m[9] = 3; // OK, constant index and inside bounds
+ m[const_index(6)] = 3; // OK, constant index and inside bounds
}
void g() {
Index: clang-tools-extra/docs/ReleaseNotes.rst
===================================================================
--- clang-tools-extra/docs/ReleaseNotes.rst
+++ clang-tools-extra/docs/ReleaseNotes.rst
@@ -321,6 +321,10 @@
:doc:`cppcoreguidelines-use-default-member-init
<clang-tidy/checks/cppcoreguidelines/use-default-member-init>` instead.
+- Improved :doc:`cppcoreguidelines-pro-bounds-constant-array-index
+ <clang-tidy/checks/cppcoreguidelines/pro-bounds-constant-array-index>` check
+ to cover type aliases of ``std::array``.
+
- Fixed a false positive in :doc:`cppcoreguidelines-slicing
<clang-tidy/checks/cppcoreguidelines/slicing>` check when warning would be
emitted in constructor for virtual base class initialization.
Index:
clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsConstantArrayIndexCheck.cpp
===================================================================
---
clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsConstantArrayIndexCheck.cpp
+++
clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsConstantArrayIndexCheck.cpp
@@ -49,7 +49,8 @@
cxxOperatorCallExpr(
hasOverloadedOperatorName("[]"),
hasArgument(
- 0, hasType(cxxRecordDecl(hasName("::std::array")).bind("type"))),
+ 0, hasType(hasUnqualifiedDesugaredType(recordType(hasDeclaration(
+ cxxRecordDecl(hasName("::std::array")).bind("type")))))),
hasArgument(1, expr().bind("index")))
.bind("expr"),
this);
Index: clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-constant-array-index.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-constant-array-index.cpp
+++ clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-constant-array-index.cpp
@@ -44,6 +44,28 @@
a[1] = 3; // OK, constant index and inside bounds
a[9] = 3; // OK, constant index and inside bounds
a[const_index(6)] = 3; // OK, constant index and inside bounds
+
+ using MyArray = std::array<int, 10>;
+ MyArray m{};
+ m [ pos / 2 /*comment*/] = 1;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not use array subscript when the index is not an integer constant expression [cppcoreguidelines-pro-bounds-constant-array-index]
+ int jj = m[pos - 1];
+ // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: do not use array subscript when the index is not an integer constant expression
+
+ m.at(pos-1) = 2; // OK, at() instead of []
+ gsl::at(m, pos-1) = 2; // OK, gsl::at() instead of []
+ m[-1] = 3;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: std::array<> index -1 is negative [cppcoreguidelines-pro-bounds-constant-array-index]
+ m[10] = 4;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: std::array<> index 10 is past the end of the array (which contains 10 elements) [cppcoreguidelines-pro-bounds-constant-array-index]
+
+ m[const_index(7)] = 3;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: std::array<> index 10 is past the end of the array (which contains 10 elements)
+
+ m[0] = 3; // OK, constant index and inside bounds
+ m[1] = 3; // OK, constant index and inside bounds
+ m[9] = 3; // OK, constant index and inside bounds
+ m[const_index(6)] = 3; // OK, constant index and inside bounds
}
void g() {
Index: clang-tools-extra/docs/ReleaseNotes.rst
===================================================================
--- clang-tools-extra/docs/ReleaseNotes.rst
+++ clang-tools-extra/docs/ReleaseNotes.rst
@@ -321,6 +321,10 @@
:doc:`cppcoreguidelines-use-default-member-init
<clang-tidy/checks/cppcoreguidelines/use-default-member-init>` instead.
+- Improved :doc:`cppcoreguidelines-pro-bounds-constant-array-index
+ <clang-tidy/checks/cppcoreguidelines/pro-bounds-constant-array-index>` check
+ to cover type aliases of ``std::array``.
+
- Fixed a false positive in :doc:`cppcoreguidelines-slicing
<clang-tidy/checks/cppcoreguidelines/slicing>` check when warning would be
emitted in constructor for virtual base class initialization.
Index: clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsConstantArrayIndexCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsConstantArrayIndexCheck.cpp
+++ clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsConstantArrayIndexCheck.cpp
@@ -49,7 +49,8 @@
cxxOperatorCallExpr(
hasOverloadedOperatorName("[]"),
hasArgument(
- 0, hasType(cxxRecordDecl(hasName("::std::array")).bind("type"))),
+ 0, hasType(hasUnqualifiedDesugaredType(recordType(hasDeclaration(
+ cxxRecordDecl(hasName("::std::array")).bind("type")))))),
hasArgument(1, expr().bind("index")))
.bind("expr"),
this);
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