Add the clang library to the repo (with some of my changes, too).

1 files changed, 314 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/member-pointer.cpp b/clang/test/SemaCXX/member-pointer.cpp
new file mode 100644
index 0000000..4e8b4a8
--- /dev/null
+++ b/clang/test/SemaCXX/member-pointer.cpp
@@ -0,0 +1,314 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+struct A {};
+enum B { Dummy };
+namespace C {}
+struct D : A {};
+struct E : A {};
+struct F : D, E {};
+struct G : virtual D {};
+
+int A::*pdi1;
+int (::A::*pdi2);
+int (A::*pfi)(int);
+
+int B::*pbi; // expected-error {{expected a class or namespace}}
+int C::*pci; // expected-error {{'pci' does not point into a class}}
+void A::*pdv; // expected-error {{'pdv' declared as a member pointer to void}}
+int& A::*pdr; // expected-error {{'pdr' declared as a member pointer to a reference}}
+
+void f() {
+  // This requires tentative parsing.
+  int (A::*pf)(int, int);
+
+  // Implicit conversion to bool.
+  bool b = pdi1;
+  b = pfi;
+
+  // Conversion from null pointer constant.
+  pf = 0;
+  pf = __null;
+
+  // Conversion to member of derived.
+  int D::*pdid = pdi1;
+  pdid = pdi2;
+
+  // Fail conversion due to ambiguity and virtuality.
+  int F::*pdif = pdi1; // expected-error {{ambiguous conversion from pointer to member of base class 'A' to pointer to member of derived class 'F':}}
+  int G::*pdig = pdi1; // expected-error {{conversion from pointer to member of class 'A' to pointer to member of class 'G' via virtual base 'D' is not allowed}}
+
+  // Conversion to member of base.
+  pdi1 = pdid; // expected-error {{assigning to 'int A::*' from incompatible type 'int D::*'}}
+  
+  // Comparisons
+  int (A::*pf2)(int, int);
+  int (D::*pf3)(int, int) = 0;
+  bool b1 = (pf == pf2); (void)b1;
+  bool b2 = (pf != pf2); (void)b2;
+  bool b3 = (pf == pf3); (void)b3;
+  bool b4 = (pf != 0); (void)b4;
+}
+
+struct TheBase
+{
+  void d();
+};
+
+struct HasMembers : TheBase
+{
+  int i;
+  void f();
+
+  void g();
+  void g(int);
+  static void g(double);
+};
+
+namespace Fake
+{
+  int i;
+  void f();
+}
+
+void g() {
+  HasMembers hm;
+
+  int HasMembers::*pmi = &HasMembers::i;
+  int *pni = &Fake::i;
+  int *pmii = &hm.i;
+
+  void (HasMembers::*pmf)() = &HasMembers::f;
+  void (*pnf)() = &Fake::f;
+  &hm.f; // expected-error {{cannot create a non-constant pointer to member function}}
+
+  void (HasMembers::*pmgv)() = &HasMembers::g;
+  void (HasMembers::*pmgi)(int) = &HasMembers::g;
+  void (*pmgd)(double) = &HasMembers::g;
+
+  void (HasMembers::*pmd)() = &HasMembers::d;
+}
+
+struct Incomplete;
+
+void h() {
+  HasMembers hm, *phm = &hm;
+
+  int HasMembers::*pi = &HasMembers::i;
+  hm.*pi = 0;
+  int i = phm->*pi;
+  (void)&(hm.*pi);
+  (void)&(phm->*pi);
+  (void)&((&hm)->*pi); 
+
+  void (HasMembers::*pf)() = &HasMembers::f;
+  (hm.*pf)();
+  (phm->*pf)();
+
+  (void)(hm->*pi); // expected-error {{left hand operand to ->* must be a pointer to class compatible with the right hand operand, but is 'HasMembers'}}
+  (void)(phm.*pi); // expected-error {{left hand operand to .* must be a class compatible with the right hand operand, but is 'HasMembers *'}}
+  (void)(i.*pi); // expected-error {{left hand operand to .* must be a class compatible with the right hand operand, but is 'int'}}
+  int *ptr;
+  (void)(ptr->*pi); // expected-error {{left hand operand to ->* must be a pointer to class compatible with the right hand operand, but is 'int *'}}
+
+  int A::*pai = 0;
+  D d, *pd = &d;
+  (void)(d.*pai);
+  (void)(pd->*pai);
+  F f, *ptrf = &f;
+  (void)(f.*pai); // expected-error {{left hand operand to .* must be a class compatible with the right hand operand, but is 'F'}}
+  (void)(ptrf->*pai); // expected-error {{left hand operand to ->* must be a pointer to class compatible with the right hand operand, but is 'F *'}}
+
+  (void)(hm.*i); // expected-error {{pointer-to-member}}
+  (void)(phm->*i); // expected-error {{pointer-to-member}}
+
+  // Okay
+  Incomplete *inc;
+  int Incomplete::*pii = 0;
+  (void)(inc->*pii);
+}
+
+struct OverloadsPtrMem
+{
+  int operator ->*(const char *);
+};
+
+void i() {
+  OverloadsPtrMem m;
+  int foo = m->*"Awesome!";
+}
+
+namespace pr5985 {
+  struct c {
+    void h();
+    void f() {
+      void (c::*p)();
+      p = &h; // expected-error {{must explicitly qualify}}
+      p = &this->h; // expected-error {{cannot create a non-constant pointer to member function}}
+      p = &(*this).h; // expected-error {{cannot create a non-constant pointer to member function}}
+    }
+  };
+}
+
+namespace pr6783 {
+  struct Base {};
+  struct X; // expected-note {{forward declaration}}
+
+  int test1(int Base::* p2m, X* object)
+  {
+    return object->*p2m; // expected-error {{left hand operand to ->*}}
+  }
+}
+
+namespace PR7176 {
+  namespace base
+  {
+    struct Process
+    { };
+    struct Continuous : Process
+    {
+      bool cond();
+    };
+  }
+
+  typedef bool( base::Process::*Condition )();
+
+  void m()
+  { (void)(Condition) &base::Continuous::cond; }
+}
+
+namespace rdar8358512 {
+  // We can't call this with an overload set because we're not allowed
+  // to look into overload sets unless the parameter has some kind of
+  // function type.
+  template <class F> void bind(F f); // expected-note 12 {{candidate template ignored}}
+  template <class F, class T> void bindmem(F (T::*f)()); // expected-note 4 {{candidate template ignored}}
+  template <class F> void bindfn(F (*f)()); // expected-note 4 {{candidate template ignored}}
+
+  struct A {
+    void nonstat();
+    void nonstat(int);
+
+    void mixed();
+    static void mixed(int);
+
+    static void stat();
+    static void stat(int);
+    
+    template <typename T> struct Test0 {
+      void test() {
+        bind(&nonstat); // expected-error {{no matching function for call}}
+        bind(&A::nonstat); // expected-error {{no matching function for call}}
+
+        bind(&mixed); // expected-error {{no matching function for call}}
+        bind(&A::mixed); // expected-error {{no matching function for call}}
+
+        bind(&stat); // expected-error {{no matching function for call}}
+        bind(&A::stat); // expected-error {{no matching function for call}}
+      }
+    };
+
+    template <typename T> struct Test1 {
+      void test() {
+        bindmem(&nonstat); // expected-error {{no matching function for call}}
+        bindmem(&A::nonstat);
+
+        bindmem(&mixed); // expected-error {{no matching function for call}}
+        bindmem(&A::mixed);
+
+        bindmem(&stat); // expected-error {{no matching function for call}}
+        bindmem(&A::stat); // expected-error {{no matching function for call}}
+      }
+    };
+
+    template <typename T> struct Test2 {
+      void test() {
+        bindfn(&nonstat); // expected-error {{no matching function for call}}
+        bindfn(&A::nonstat); // expected-error {{no matching function for call}}
+
+        bindfn(&mixed); // expected-error {{no matching function for call}}
+        bindfn(&A::mixed); // expected-error {{no matching function for call}}
+
+        bindfn(&stat);
+        bindfn(&A::stat);
+      }
+    };
+  };
+
+  template <class T> class B {
+    void nonstat();
+    void nonstat(int);
+
+    void mixed();
+    static void mixed(int);
+
+    static void stat();
+    static void stat(int);
+
+    // None of these can be diagnosed yet, because the arguments are
+    // still dependent.
+    void test0a() {
+      bind(&nonstat);
+      bind(&B::nonstat);
+
+      bind(&mixed);
+      bind(&B::mixed);
+
+      bind(&stat);
+      bind(&B::stat);
+    }
+
+    void test0b() {
+      bind(&nonstat); // expected-error {{no matching function for call}}
+      bind(&B::nonstat); // expected-error {{no matching function for call}}
+
+      bind(&mixed); // expected-error {{no matching function for call}}
+      bind(&B::mixed); // expected-error {{no matching function for call}}
+
+      bind(&stat); // expected-error {{no matching function for call}}
+      bind(&B::stat); // expected-error {{no matching function for call}}
+    }
+  };
+
+  template void B<int>::test0b(); // expected-note {{in instantiation}}
+}
+
+namespace PR9973 {
+  template<class R, class T> struct dm
+  {
+    typedef R T::*F;
+    F f_;
+    template<class U> int & call(U u)
+    { return u->*f_; } // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}} expected-error {{non-const lvalue reference to type 'int' cannot bind to a temporary of type 'int'}}
+
+    template<class U> int operator()(U u)
+    { call(u); } // expected-note{{in instantiation of}}
+  };
+
+  template<class R, class T> 
+  dm<R, T> mem_fn(R T::*) ;
+
+  struct test
+  { int nullary_v(); };
+
+  void f()
+  {
+    test* t;
+    mem_fn(&test::nullary_v)(t); // expected-note{{in instantiation of}}
+  }
+}
+
+namespace test8 {
+  struct A { int foo; };
+  int test1() {
+    // Verify that we perform (and check) an lvalue conversion on the operands here.
+    return (*((A**) 0)) // expected-warning {{indirection of non-volatile null pointer will be deleted}} expected-note {{consider}}
+             ->**(int A::**) 0; // expected-warning {{indirection of non-volatile null pointer will be deleted}} expected-note {{consider}}
+  }
+
+  int test2() {
+    // Verify that we perform (and check) an lvalue conversion on the operands here.
+    // TODO: the .* should itself warn about being a dereference of null.
+    return (*((A*) 0))
+             .**(int A::**) 0; // expected-warning {{indirection of non-volatile null pointer will be deleted}} expected-note {{consider}}
+  }
+}