forked from OSchip/llvm-project
142 lines
3.5 KiB
C++
142 lines
3.5 KiB
C++
// RUN: %clang_cc1 -analyze -analyzer-checker=optin.cplusplus.VirtualCall -analyzer-store region -verify -std=c++11 %s
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// RUN: %clang_cc1 -analyze -analyzer-checker=optin.cplusplus.VirtualCall -analyzer-store region -analyzer-config optin.cplusplus.VirtualCall:Interprocedural=true -DINTERPROCEDURAL=1 -verify -std=c++11 %s
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// RUN: %clang_cc1 -analyze -analyzer-checker=optin.cplusplus.VirtualCall -analyzer-store region -analyzer-config optin.cplusplus.VirtualCall:PureOnly=true -DPUREONLY=1 -verify -std=c++11 %s
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/* When INTERPROCEDURAL is set, we expect diagnostics in all functions reachable
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from a constructor or destructor. If it is not set, we expect diagnostics
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only in the constructor or destructor.
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When PUREONLY is set, we expect diagnostics only for calls to pure virtual
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functions not to non-pure virtual functions.
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*/
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class A {
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public:
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A();
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A(int i);
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~A() {};
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virtual int foo() = 0; // from Sema: expected-note {{'foo' declared here}}
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virtual void bar() = 0;
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void f() {
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foo();
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#if INTERPROCEDURAL
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// expected-warning-re@-2 {{{{^}}Call Path : foo <-- fCall to pure virtual function during construction has undefined behavior}}
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#endif
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}
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};
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class B : public A {
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public:
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B() {
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foo();
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#if !PUREONLY
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#if INTERPROCEDURAL
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// expected-warning-re@-3 {{{{^}}Call Path : fooCall to virtual function during construction will not dispatch to derived class}}
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#else
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// expected-warning-re@-5 {{{{^}}Call to virtual function during construction will not dispatch to derived class}}
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#endif
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#endif
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}
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~B();
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virtual int foo();
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virtual void bar() { foo(); }
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#if INTERPROCEDURAL
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// expected-warning-re@-2 {{{{^}}Call Path : foo <-- barCall to virtual function during destruction will not dispatch to derived class}}
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#endif
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};
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A::A() {
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f();
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}
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A::A(int i) {
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foo(); // From Sema: expected-warning {{call to pure virtual member function 'foo' has undefined behavior}}
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#if INTERPROCEDURAL
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// expected-warning-re@-2 {{{{^}}Call Path : fooCall to pure virtual function during construction has undefined behavior}}
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#else
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// expected-warning-re@-4 {{{{^}}Call to pure virtual function during construction has undefined behavior}}
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#endif
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}
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B::~B() {
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this->B::foo(); // no-warning
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this->B::bar();
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this->foo();
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#if !PUREONLY
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#if INTERPROCEDURAL
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// expected-warning-re@-3 {{{{^}}Call Path : fooCall to virtual function during destruction will not dispatch to derived class}}
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#else
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// expected-warning-re@-5 {{{{^}}Call to virtual function during destruction will not dispatch to derived class}}
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#endif
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#endif
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}
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class C : public B {
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public:
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C();
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~C();
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virtual int foo();
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void f(int i);
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};
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C::C() {
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f(foo());
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#if !PUREONLY
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#if INTERPROCEDURAL
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// expected-warning-re@-3 {{{{^}}Call Path : fooCall to virtual function during construction will not dispatch to derived class}}
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#else
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// expected-warning-re@-5 {{{{^}}Call to virtual function during construction will not dispatch to derived class}}
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#endif
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#endif
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}
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class D : public B {
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public:
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D() {
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foo(); // no-warning
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}
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~D() { bar(); }
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int foo() final;
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void bar() final { foo(); } // no-warning
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};
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class E final : public B {
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public:
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E() {
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foo(); // no-warning
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}
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~E() { bar(); }
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int foo() override;
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};
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// Regression test: don't crash when there's no direct callee.
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class F {
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public:
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F() {
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void (F::* ptr)() = &F::foo;
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(this->*ptr)();
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}
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void foo();
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};
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int main() {
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A *a;
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B *b;
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C *c;
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D *d;
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E *e;
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F *f;
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}
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#include "virtualcall.h"
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#define AS_SYSTEM
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#include "virtualcall.h"
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#undef AS_SYSTEM
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