NoQ updated this revision to Diff 208807.
NoQ added a comment.
Bring back the option in order to preserve backwards compatibility.
Sneak in an implicit conversion from `CheckName` to `StringRef` so that not to
repeat myself.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D64274/new/
https://reviews.llvm.org/D64274
Files:
clang/include/clang/StaticAnalyzer/Checkers/Checkers.td
clang/include/clang/StaticAnalyzer/Core/CheckerManager.h
clang/lib/StaticAnalyzer/Checkers/VirtualCallChecker.cpp
clang/test/Analysis/virtualcall.cpp
clang/test/Analysis/virtualcall.h
Index: clang/test/Analysis/virtualcall.h
===================================================================
--- clang/test/Analysis/virtualcall.h
+++ clang/test/Analysis/virtualcall.h
@@ -2,12 +2,7 @@
class Z {
public:
Z() {
- foo();
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during construction}}
- // expected-note-re@-3 {{{{^}}This constructor of an object of type 'Z' has not returned when the virtual method was called}}
- // expected-note-re@-4 {{{{^}}Call to virtual function during construction}}
-#endif
+ foo(); // impure-warning {{Call to virtual function during construction}}
}
virtual int foo();
};
Index: clang/test/Analysis/virtualcall.cpp
===================================================================
--- clang/test/Analysis/virtualcall.cpp
+++ clang/test/Analysis/virtualcall.cpp
@@ -1,6 +1,23 @@
-// RUN: %clang_analyze_cc1 -analyzer-checker=optin.cplusplus.VirtualCall -analyzer-store region -analyzer-output=text -verify -std=c++11 %s
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,optin.cplusplus.VirtualCall \
+// RUN: -std=c++11 -verify=expected,impure %s
-// RUN: %clang_analyze_cc1 -analyzer-checker=optin.cplusplus.VirtualCall -analyzer-store region -analyzer-config optin.cplusplus.VirtualCall:PureOnly=true -DPUREONLY=1 -analyzer-output=text -verify -std=c++11 %s
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.PureVirtualCall \
+// RUN: -std=c++11 -verify=expected -std=c++11 %s
+
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,optin.cplusplus.VirtualCall \
+// RUN: -analyzer-config \
+// RUN: optin.cplusplus.VirtualCall:PureOnly=true \
+// RUN: -std=c++11 -verify=expected %s
+
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.PureVirtualCall \
+// RUN: -analyzer-checker=optin.cplusplus.VirtualCall \
+// RUN: -std=c++11 -verify=expected,impure -std=c++11 %s
+
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.PureVirtualCall \
+// RUN: -analyzer-checker=optin.cplusplus.VirtualCall \
+// RUN: -analyzer-config \
+// RUN: optin.cplusplus.VirtualCall:PureOnly=true \
+// RUN: -std=c++11 -verify=expected %s
#include "virtualcall.h"
@@ -13,54 +30,31 @@
virtual int foo() = 0;
virtual void bar() = 0;
void f() {
- foo();
- // expected-warning-re@-1 {{{{^}}Call to pure virtual function during construction}}
- // expected-note-re@-2 {{{{^}}Call to pure virtual function during construction}}
+ foo(); // expected-warning{{Call to pure virtual function during construction}}
}
};
class B : public A {
public:
- B() { // expected-note {{Calling default constructor for 'A'}}
- foo();
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during construction}}
- // expected-note-re@-3 {{{{^}}This constructor of an object of type 'B' has not returned when the virtual method was called}}
- // expected-note-re@-4 {{{{^}}Call to virtual function during construction}}
-#endif
+ B() {
+ foo(); // impure-warning {{Call to virtual function during construction}}
}
~B();
virtual int foo();
virtual void bar() {
- foo();
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during destruction}}
- // expected-note-re@-3 {{{{^}}Call to virtual function during destruction}}
-#endif
- }
+ foo(); // impure-warning{{Call to virtual function during destruction}}
+ }
};
-A::A() {
- f();
-// expected-note-re@-1 {{{{^}}This constructor of an object of type 'A' has not returned when the virtual method was called}}
-// expected-note-re@-2 {{{{^}}Calling 'A::f'}}
+A::A() {
+ f();
}
B::~B() {
this->B::foo(); // no-warning
this->B::bar();
-#if !PUREONLY
- // expected-note-re@-2 {{{{^}}This destructor of an object of type '~B' has not returned when the virtual method was called}}
- // expected-note-re@-3 {{{{^}}Calling 'B::bar'}}
-#endif
- this->foo();
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during destruction}}
- // expected-note-re@-3 {{{{^}}This destructor of an object of type '~B' has not returned when the virtual method was called}}
- // expected-note-re@-4 {{{{^}}Call to virtual function during destruction}}
-#endif
-
+ this->foo(); // impure-warning {{Call to virtual function during destruction}}
}
class C : public B {
@@ -73,12 +67,7 @@
};
C::C() {
- f(foo());
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during construction}}
- // expected-note-re@-3 {{{{^}}This constructor of an object of type 'C' has not returned when the virtual method was called}}
- // expected-note-re@-4 {{{{^}}Call to virtual function during construction}}
-#endif
+ f(foo()); // impure-warning {{Call to virtual function during construction}}
}
class D : public B {
@@ -97,9 +86,6 @@
foo(); // no-warning
}
~E() { bar(); }
-#if !PUREONLY
- // expected-note-re@-2 2{{{{^}}Calling '~B'}}
-#endif
int foo() override;
};
@@ -135,52 +121,23 @@
G g;
g.foo();
g.bar(); // no warning
- f();
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during construction}}
- // expected-note-re@-3 {{{{^}}This constructor of an object of type 'H' has not returned when the virtual method was called}}
- // expected-note-re@-4 {{{{^}}Call to virtual function during construction}}
-#endif
+ f(); // impure-warning {{Call to virtual function during construction}}
H &h = *this;
- h.f();
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during construction}}
- // expected-note-re@-3 {{{{^}}This constructor of an object of type 'H' has not returned when the virtual method was called}}
- // expected-note-re@-4 {{{{^}}Call to virtual function during construction}}
-#endif
+ h.f(); // impure-warning {{Call to virtual function during construction}}
}
};
class X {
public:
X() {
- g();
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during construction}}
- // expected-note-re@-3 {{{{^}}This constructor of an object of type 'X' has not returned when the virtual method was called}}
- // expected-note-re@-4 {{{{^}}Call to virtual function during construction}}
-#endif
+ g(); // impure-warning {{Call to virtual function during construction}}
}
X(int i) {
if (i > 0) {
-#if !PUREONLY
- // expected-note-re@-2 {{{{^}}'i' is > 0}}
- // expected-note-re@-3 {{{{^}}Taking true branch}}
- // expected-note-re@-4 {{{{^}}'i' is <= 0}}
- // expected-note-re@-5 {{{{^}}Taking false branch}}
-#endif
X x(i - 1);
-#if !PUREONLY
- // expected-note-re@-2 {{{{^}}Calling constructor for 'X'}}
-#endif
x.g(); // no warning
}
- g();
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during construction}}
- // expected-note-re@-3 {{{{^}}This constructor of an object of type 'X' has not returned when the virtual method was called}}
- // expected-note-re@-4 {{{{^}}Call to virtual function during construction}}
-#endif
+ g(); // impure-warning {{Call to virtual function during construction}}
}
virtual void g();
};
@@ -197,19 +154,11 @@
N n;
n.virtualMethod(); // no warning
n.callFooOfM(this);
-#if !PUREONLY
- // expected-note-re@-2 {{{{^}}This constructor of an object of type 'M' has not returned when the virtual method was called}}
- // expected-note-re@-3 {{{{^}}Calling 'N::callFooOfM'}}
-#endif
}
virtual void foo();
};
void N::callFooOfM(M *m) {
- m->foo();
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during construction}}
- // expected-note-re@-3 {{{{^}}Call to virtual function during construction}}
-#endif
+ m->foo(); // impure-warning {{Call to virtual function during construction}}
}
class Y {
@@ -217,65 +166,27 @@
virtual void foobar();
void fooY() {
F f1;
- foobar();
-#if !PUREONLY
- // expected-warning-re@-2 {{{{^}}Call to virtual function during construction}}
- // expected-note-re@-3 {{{{^}}Call to virtual function during construction}}
-#endif
+ foobar(); // impure-warning {{Call to virtual function during construction}}
}
Y() { fooY(); }
-#if !PUREONLY
- // expected-note-re@-2 {{{{^}}This constructor of an object of type 'Y' has not returned when the virtual method was called}}
- // expected-note-re@-3 {{{{^}}Calling 'Y::fooY'}}
-#endif
};
int main() {
B b;
-#if PUREONLY
- //expected-note-re@-2 {{{{^}}Calling default constructor for 'B'}}
-#else
- //expected-note-re@-4 2{{{{^}}Calling default constructor for 'B'}}
-#endif
C c;
-#if !PUREONLY
- //expected-note-re@-2 {{{{^}}Calling default constructor for 'C'}}
-#endif
D d;
E e;
F f;
G g;
H h;
H h1(1);
-#if !PUREONLY
- //expected-note-re@-2 {{{{^}}Calling constructor for 'H'}}
- //expected-note-re@-3 {{{{^}}Calling constructor for 'H'}}
-#endif
X x;
-#if !PUREONLY
- //expected-note-re@-2 {{{{^}}Calling default constructor for 'X'}}
-#endif
X x1(1);
-#if !PUREONLY
- //expected-note-re@-2 {{{{^}}Calling constructor for 'X'}}
-#endif
M m;
-#if !PUREONLY
- //expected-note-re@-2 {{{{^}}Calling default constructor for 'M'}}
-#endif
Y *y = new Y;
-#if !PUREONLY
- //expected-note-re@-2 {{{{^}}Calling default constructor for 'Y'}}
-#endif
delete y;
header::Z z;
-#if !PUREONLY
- // expected-note-re@-2 {{{{^}}Calling default constructor for 'Z'}}
-#endif
}
-#if !PUREONLY
- //expected-note-re@-2 2{{{{^}}Calling '~E'}}
-#endif
namespace PR34451 {
struct a {
Index: clang/lib/StaticAnalyzer/Checkers/VirtualCallChecker.cpp
===================================================================
--- clang/lib/StaticAnalyzer/Checkers/VirtualCallChecker.cpp
+++ clang/lib/StaticAnalyzer/Checkers/VirtualCallChecker.cpp
@@ -44,7 +44,7 @@
public:
// The flag to determine if pure virtual functions should be issued only.
- DefaultBool IsPureOnly;
+ bool IsPureOnly = true;
void checkBeginFunction(CheckerContext &C) const;
void checkEndFunction(const ReturnStmt *RS, CheckerContext &C) const;
@@ -55,84 +55,12 @@
CheckerContext &C) const;
void reportBug(StringRef Msg, bool PureError, const MemRegion *Reg,
CheckerContext &C) const;
-
- class VirtualBugVisitor : public BugReporterVisitor {
- private:
- const MemRegion *ObjectRegion;
- bool Found;
-
- public:
- VirtualBugVisitor(const MemRegion *R) : ObjectRegion(R), Found(false) {}
-
- void Profile(llvm::FoldingSetNodeID &ID) const override {
- static int X = 0;
- ID.AddPointer(&X);
- ID.AddPointer(ObjectRegion);
- }
-
- std::shared_ptr<PathDiagnosticPiece> VisitNode(const ExplodedNode *N,
- BugReporterContext &BRC,
- BugReport &BR) override;
- };
};
} // end namespace
// GDM (generic data map) to the memregion of this for the ctor and dtor.
REGISTER_MAP_WITH_PROGRAMSTATE(CtorDtorMap, const MemRegion *, ObjectState)
-std::shared_ptr<PathDiagnosticPiece>
-VirtualCallChecker::VirtualBugVisitor::VisitNode(const ExplodedNode *N,
- BugReporterContext &BRC,
- BugReport &) {
- // We need the last ctor/dtor which call the virtual function.
- // The visitor walks the ExplodedGraph backwards.
- if (Found)
- return nullptr;
-
- ProgramStateRef State = N->getState();
- const LocationContext *LCtx = N->getLocationContext();
- const CXXConstructorDecl *CD =
- dyn_cast_or_null<CXXConstructorDecl>(LCtx->getDecl());
- const CXXDestructorDecl *DD =
- dyn_cast_or_null<CXXDestructorDecl>(LCtx->getDecl());
-
- if (!CD && !DD)
- return nullptr;
-
- ProgramStateManager &PSM = State->getStateManager();
- auto &SVB = PSM.getSValBuilder();
- const auto *MD = dyn_cast<CXXMethodDecl>(LCtx->getDecl());
- if (!MD)
- return nullptr;
- auto ThiSVal =
- State->getSVal(SVB.getCXXThis(MD, LCtx->getStackFrame()));
- const MemRegion *Reg = ThiSVal.castAs<loc::MemRegionVal>().getRegion();
- if (!Reg)
- return nullptr;
- if (Reg != ObjectRegion)
- return nullptr;
-
- const Stmt *S = PathDiagnosticLocation::getStmt(N);
- if (!S)
- return nullptr;
- Found = true;
-
- std::string InfoText;
- if (CD)
- InfoText = "This constructor of an object of type '" +
- CD->getNameAsString() +
- "' has not returned when the virtual method was called";
- else
- InfoText = "This destructor of an object of type '" +
- DD->getNameAsString() +
- "' has not returned when the virtual method was called";
-
- // Generate the extra diagnostic.
- PathDiagnosticLocation Pos(S, BRC.getSourceManager(),
- N->getLocationContext());
- return std::make_shared<PathDiagnosticEventPiece>(Pos, InfoText, true);
-}
-
// The function to check if a callexpr is a virtual function.
static bool isVirtualCall(const CallExpr *CE) {
bool CallIsNonVirtual = false;
@@ -271,15 +199,21 @@
"C++ Object Lifecycle"));
auto Reporter = llvm::make_unique<BugReport>(*BT, Msg, N);
- Reporter->addVisitor(llvm::make_unique<VirtualBugVisitor>(Reg));
C.emitReport(std::move(Reporter));
}
-void ento::registerVirtualCallChecker(CheckerManager &mgr) {
- VirtualCallChecker *checker = mgr.registerChecker<VirtualCallChecker>();
+void ento::registerPureVirtualCallChecker(CheckerManager &Mgr) {
+ Mgr.registerChecker<VirtualCallChecker>();
+}
+
+void ento::registerVirtualCallChecker(CheckerManager &Mgr) {
+ auto *Chk = Mgr.getChecker<VirtualCallChecker>();
+ Chk->IsPureOnly = Mgr.getAnalyzerOptions().getCheckerBooleanOption(
+ Mgr.getCurrentCheckName(), "PureOnly");
+}
- checker->IsPureOnly =
- mgr.getAnalyzerOptions().getCheckerBooleanOption(checker, "PureOnly");
+bool ento::shouldRegisterPureVirtualCallChecker(const LangOptions &LO) {
+ return true;
}
bool ento::shouldRegisterVirtualCallChecker(const LangOptions &LO) {
Index: clang/include/clang/StaticAnalyzer/Core/CheckerManager.h
===================================================================
--- clang/include/clang/StaticAnalyzer/Core/CheckerManager.h
+++ clang/include/clang/StaticAnalyzer/Core/CheckerManager.h
@@ -105,6 +105,7 @@
CheckName() = default;
StringRef getName() const { return Name; }
+ operator StringRef() const { return Name; }
};
enum class ObjCMessageVisitKind {
Index: clang/include/clang/StaticAnalyzer/Checkers/Checkers.td
===================================================================
--- clang/include/clang/StaticAnalyzer/Checkers/Checkers.td
+++ clang/include/clang/StaticAnalyzer/Checkers/Checkers.td
@@ -507,6 +507,9 @@
]>,
Documentation<HasDocumentation>;
+def PureVirtualCallChecker : Checker<"PureVirtualCall">,
+ HelpText<"Check pure virtual function calls during construction/destruction">,
+ Documentation<HasDocumentation>;
} // end: "cplusplus"
let ParentPackage = CplusplusOptIn in {
@@ -555,14 +558,17 @@
Documentation<HasAlphaDocumentation>;
def VirtualCallChecker : Checker<"VirtualCall">,
- HelpText<"Check virtual function calls during construction or destruction">,
+ HelpText<"Check virtual function calls during construction/destruction">,
CheckerOptions<[
CmdLineOption<Boolean,
"PureOnly",
- "Whether to only report calls to pure virtual methods.",
+ "Disables the checker. Keeps cplusplus.PureVirtualCall "
+ "enabled. This option is only provided for backwards "
+ "compatibility.",
"false",
- Released>
+ InAlpha>
]>,
+ Dependencies<[PureVirtualCallChecker]>,
Documentation<HasDocumentation>;
} // end: "optin.cplusplus"
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