steveire created this revision.
steveire added reviewers: aaron.ballman, njames93.
Herald added a subscriber: nullptr.cpp.
steveire requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
Diagnose the problem in templates in the context of the template
declaration instead of in the context of all of the (possibly very many)
template instantiations.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D96224
Files:
clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.cpp
clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.h
clang-tools-extra/test/clang-tidy/checkers/bugprone-virtual-near-miss.cpp
Index: clang-tools-extra/test/clang-tidy/checkers/bugprone-virtual-near-miss.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/checkers/bugprone-virtual-near-miss.cpp
+++ clang-tools-extra/test/clang-tidy/checkers/bugprone-virtual-near-miss.cpp
@@ -44,9 +44,7 @@
struct TDerived : TBase<T> {
virtual void tfunk(T t);
// Should not apply fix for template.
- // CHECK-MESSAGES: :[[@LINE-2]]:3: warning: method 'TDerived<double>::tfunk'
has {{.*}} 'TBase<double>::tfunc'
- // CHECK-MESSAGES: :[[@LINE-3]]:3: warning: method 'TDerived<int>::tfunk'
has {{.*}} 'TBase<int>::tfunc'
- // CHECK-FIXES: virtual void tfunk(T t);
+ // CHECK-MESSAGES: :[[@LINE-2]]:3: warning: method 'TDerived::tfunk' has
{{.*}} 'TBase::tfunc'
};
TDerived<int> T1;
Index: clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.h
===================================================================
--- clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.h
+++ clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.h
@@ -32,6 +32,9 @@
}
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+ llvm::Optional<TraversalKind> getCheckTraversalKind() const override {
+ return TK_IgnoreUnlessSpelledInSource;
+ }
private:
/// Check if the given method is possible to be overridden by some other
Index: clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.cpp
+++ clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.cpp
@@ -216,10 +216,9 @@
void VirtualNearMissCheck::registerMatchers(MatchFinder *Finder) {
Finder->addMatcher(
- cxxMethodDecl(
- unless(anyOf(isOverride(), isImplicit(), cxxConstructorDecl(),
- cxxDestructorDecl(), cxxConversionDecl(), isStatic(),
- isOverloadedOperator())))
+ cxxMethodDecl(unless(anyOf(isOverride(), cxxConstructorDecl(),
+ cxxDestructorDecl(), cxxConversionDecl(),
+ isStatic(), isOverloadedOperator())))
.bind("method"),
this);
}
@@ -234,7 +233,15 @@
assert(DerivedRD);
for (const auto &BaseSpec : DerivedRD->bases()) {
- if (const auto *BaseRD = BaseSpec.getType()->getAsCXXRecordDecl()) {
+ const auto *BaseRD = BaseSpec.getType()->getAsCXXRecordDecl();
+ if (const auto *TST =
+ dyn_cast<TemplateSpecializationType>(BaseSpec.getType())) {
+ auto TN = TST->getTemplateName();
+ BaseRD =
+ dyn_cast<CXXRecordDecl>(TN.getAsTemplateDecl()->getTemplatedDecl());
+ }
+
+ if (BaseRD) {
for (const auto *BaseMD : BaseRD->methods()) {
if (!isPossibleToBeOverridden(BaseMD))
continue;
Index: clang-tools-extra/test/clang-tidy/checkers/bugprone-virtual-near-miss.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/checkers/bugprone-virtual-near-miss.cpp
+++ clang-tools-extra/test/clang-tidy/checkers/bugprone-virtual-near-miss.cpp
@@ -44,9 +44,7 @@
struct TDerived : TBase<T> {
virtual void tfunk(T t);
// Should not apply fix for template.
- // CHECK-MESSAGES: :[[@LINE-2]]:3: warning: method 'TDerived<double>::tfunk' has {{.*}} 'TBase<double>::tfunc'
- // CHECK-MESSAGES: :[[@LINE-3]]:3: warning: method 'TDerived<int>::tfunk' has {{.*}} 'TBase<int>::tfunc'
- // CHECK-FIXES: virtual void tfunk(T t);
+ // CHECK-MESSAGES: :[[@LINE-2]]:3: warning: method 'TDerived::tfunk' has {{.*}} 'TBase::tfunc'
};
TDerived<int> T1;
Index: clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.h
===================================================================
--- clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.h
+++ clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.h
@@ -32,6 +32,9 @@
}
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+ llvm::Optional<TraversalKind> getCheckTraversalKind() const override {
+ return TK_IgnoreUnlessSpelledInSource;
+ }
private:
/// Check if the given method is possible to be overridden by some other
Index: clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.cpp
+++ clang-tools-extra/clang-tidy/bugprone/VirtualNearMissCheck.cpp
@@ -216,10 +216,9 @@
void VirtualNearMissCheck::registerMatchers(MatchFinder *Finder) {
Finder->addMatcher(
- cxxMethodDecl(
- unless(anyOf(isOverride(), isImplicit(), cxxConstructorDecl(),
- cxxDestructorDecl(), cxxConversionDecl(), isStatic(),
- isOverloadedOperator())))
+ cxxMethodDecl(unless(anyOf(isOverride(), cxxConstructorDecl(),
+ cxxDestructorDecl(), cxxConversionDecl(),
+ isStatic(), isOverloadedOperator())))
.bind("method"),
this);
}
@@ -234,7 +233,15 @@
assert(DerivedRD);
for (const auto &BaseSpec : DerivedRD->bases()) {
- if (const auto *BaseRD = BaseSpec.getType()->getAsCXXRecordDecl()) {
+ const auto *BaseRD = BaseSpec.getType()->getAsCXXRecordDecl();
+ if (const auto *TST =
+ dyn_cast<TemplateSpecializationType>(BaseSpec.getType())) {
+ auto TN = TST->getTemplateName();
+ BaseRD =
+ dyn_cast<CXXRecordDecl>(TN.getAsTemplateDecl()->getTemplatedDecl());
+ }
+
+ if (BaseRD) {
for (const auto *BaseMD : BaseRD->methods()) {
if (!isPossibleToBeOverridden(BaseMD))
continue;
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