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

1 files changed, 249 insertions, 0 deletions

diff --git a/clang/test/SemaTemplate/instantiate-function-1.cpp b/clang/test/SemaTemplate/instantiate-function-1.cpp
new file mode 100644
index 0000000..ceef274
--- /dev/null
+++ b/clang/test/SemaTemplate/instantiate-function-1.cpp
@@ -0,0 +1,249 @@
+// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify %s
+template<typename T, typename U>
+struct X0 {
+  void f(T x, U y) { 
+    (void)(x + y); // expected-error{{invalid operands}}
+  }
+};
+
+struct X1 { };
+
+template struct X0<int, float>;
+template struct X0<int*, int>;
+template struct X0<int X1::*, int>; // expected-note{{instantiation of}}
+
+template<typename T>
+struct X2 {
+  void f(T);
+
+  T g(T x, T y) {
+    /* DeclStmt */;
+    T *xp = &x, &yr = y; // expected-error{{pointer to a reference}}
+    /* NullStmt */;
+  }
+};
+
+template struct X2<int>;
+template struct X2<int&>; // expected-note{{instantiation of}}
+
+template<typename T>
+struct X3 {
+  void f(T) {
+    Label:
+    T x;
+    goto Label;
+  }
+};
+
+template struct X3<int>;
+
+template <typename T> struct X4 {
+  T f() const {
+    return; // expected-error{{non-void function 'f' should return a value}}
+  }
+  
+  T g() const {
+    return 1; // expected-error{{void function 'g' should not return a value}}
+  }
+};
+
+template struct X4<void>; // expected-note{{in instantiation of}}
+template struct X4<int>; // expected-note{{in instantiation of}}
+
+struct Incomplete; // expected-note 2{{forward declaration}}
+
+template<typename T> struct X5 {
+  T f() { } // expected-error{{incomplete result type}}
+};
+void test_X5(X5<Incomplete> x5); // okay!
+
+template struct X5<Incomplete>; // expected-note{{instantiation}}
+
+template<typename T, typename U, typename V> struct X6 {
+  U f(T t, U u, V v) {
+    // IfStmt
+    if (t > 0)
+      return u;
+    else { 
+      if (t < 0)
+        return v; // expected-error{{cannot initialize return object of type}}
+    }
+
+    if (T x = t) {
+      t = x;
+    }
+    return v; // expected-error{{cannot initialize return object of type}}
+  }
+};
+
+struct ConvertibleToInt {
+  operator int() const;
+};
+
+template struct X6<ConvertibleToInt, float, char>;
+template struct X6<bool, int, int*>; // expected-note{{instantiation}}
+
+template <typename T> struct X7 {
+  void f() {
+    void *v = this;
+  }
+};
+
+template struct X7<int>;
+
+template<typename T> struct While0 {
+  void f(T t) {
+    while (t) {
+    }
+
+    while (T t2 = T()) ;
+  }
+};
+
+template struct While0<float>;
+
+template<typename T> struct Do0 {
+  void f(T t) {
+    do {
+    } while (t); // expected-error{{not contextually}}
+  }
+};
+
+struct NotConvertibleToBool { };
+template struct Do0<ConvertibleToInt>;
+template struct Do0<NotConvertibleToBool>; // expected-note{{instantiation}}
+
+template<typename T> struct For0 {
+  void f(T f, T l) {
+    for (; f != l; ++f) {
+      if (*f)
+        continue;
+      else if (*f == 17)
+        break;
+    }
+  }
+};
+
+template struct For0<int*>;
+
+template<typename T> struct Member0 {
+  void f(T t) {
+    t;
+    t.f;
+    t->f;
+    
+    T* tp;
+    tp.f; // expected-error{{member reference base type 'T *' is not a structure or union}}
+    tp->f;
+
+    this->f;
+    this.f; // expected-error{{member reference base type 'Member0<T> *' is not a structure or union}}
+  }
+};
+
+template<typename T, typename U> struct Switch0 {
+  U f(T value, U v0, U v1, U v2) {
+    switch (value) {
+    case 0: return v0;
+
+    case 1: return v1;
+
+    case 2: // fall through
+
+    default:
+      return  v2;
+    }
+  }
+};
+
+template struct Switch0<int, float>;
+
+template<typename T, int I1, int I2> struct Switch1 {
+  T f(T x, T y, T z) {
+    switch (x) {
+    case I1: return y; // expected-note{{previous}}
+    case I2: return z; // expected-error{{duplicate}}
+    default: return x;
+    }
+  }
+};
+
+template struct Switch1<int, 1, 2>;
+template struct Switch1<int, 2, 2>; // expected-note{{instantiation}}
+
+template<typename T> struct IndirectGoto0 {
+  void f(T x) {
+    // FIXME: crummy error message below
+    goto *x; // expected-error{{incompatible}}
+
+  prior:
+    T prior_label;
+    prior_label = &&prior; // expected-error{{assigning to 'int'}}
+
+    T later_label;
+    later_label = &&later; // expected-error{{assigning to 'int'}}
+
+  later:
+    (void)(1+1);
+  }
+};
+
+template struct IndirectGoto0<void*>;
+template struct IndirectGoto0<int>; // expected-note{{instantiation}}
+
+template<typename T> struct TryCatch0 {
+  void f() {
+    try {
+    } catch (T t) { // expected-error{{incomplete type}} \
+                    // expected-error{{abstract class}}
+    } catch (...) {
+    }
+  }
+};
+
+struct Abstract {
+  virtual void foo() = 0; // expected-note{{pure virtual}}
+};
+
+template struct TryCatch0<int>; // okay
+template struct TryCatch0<Incomplete*>; // expected-note{{instantiation}}
+template struct TryCatch0<Abstract>; // expected-note{{instantiation}}
+
+// PR4383
+template<typename T> struct X;
+template<typename T> struct Y : public X<T> {
+  Y& x() { return *this; }
+};
+
+// Make sure our assertions don't get too uppity.
+namespace test0 {
+  template <class T> class A { void foo(T array[10]); };
+  template class A<int>;
+}
+
+namespace PR7016 {
+  template<typename T> void f() { T x = x; }
+  template void f<int>();
+}
+
+namespace PR9880 {
+  struct lua_State;
+  struct no_tag { char a; };			// (A)
+  struct yes_tag { long a; long b; };	// (A)
+
+  template <typename T>
+  struct HasIndexMetamethod {
+    template <typename U>
+    static no_tag check(...);
+    template <typename U>
+    static yes_tag check(char[sizeof(&U::luaIndex)]);
+    enum { value = sizeof(check<T>(0)) == sizeof(yes_tag) };
+  };
+  
+  class SomeClass {
+  public:
+    int luaIndex(lua_State* L);
+  };
+  
+  int i = HasIndexMetamethod<SomeClass>::value;
+}