clang/test/FixIt/fixit-c++11.cpp

   1 // RUN: %clang_cc1 -verify -std=c++11 -Wno-anonymous-pack-parens %s
   2 // RUN: cp %s %t
   3 // RUN: not %clang_cc1 -x c++ -std=c++11 -fixit %t
   4 // RUN: %clang_cc1 -Wall -pedantic -x c++ -std=c++11 %t
   5
   6 /* This is a test of the various code modification hints that only
   7    apply in C++0x. */
   8 struct A {
   9   explicit operator int(); // expected-note{{conversion to integral type}}
  10 };
  11
  12 void x() {
  13   switch(A()) { // expected-error{{explicit conversion to}}
  14   }
  15 }
  16
  17 using ::T = void; // expected-error {{name defined in alias declaration must be an identifier}}
  18 using typename U = void; // expected-error {{name defined in alias declaration must be an identifier}}
  19 using typename ::V = void; // expected-error {{name defined in alias declaration must be an identifier}}
  20
  21 namespace SemiCommaTypo {
  22   int m {},
  23   n [[]], // expected-error {{expected ';' at end of declaration}}
  24   int o;
  25
  26   struct Base {
  27     virtual void f2(), f3();
  28   };
  29   struct MemberDeclarator : Base {
  30     int k : 4,
  31         //[[]] : 1, FIXME: test this once we support attributes here
  32         : 9, // expected-error {{expected ';' at end of declaration}}
  33     char c, // expected-error {{expected ';' at end of declaration}}
  34     typedef void F(), // expected-error {{expected ';' at end of declaration}}
  35     F f1,
  36       f2 final,
  37       f3 override, // expected-error {{expected ';' at end of declaration}}
  38   };
  39 }
  40
  41 namespace ScopedEnum {
  42   enum class E { a };
  43
  44   enum class E b = E::a; // expected-error {{must use 'enum' not 'enum class'}}
  45   struct S {
  46     friend enum class E; // expected-error {{must use 'enum' not 'enum class'}}
  47   };
  48 }
  49
  50 struct S2 {
  51   void f(int i);
  52   void g(int i);
  53 };
  54
  55 void S2::f(int i) {
  56   (void)[&, &i, &i]{}; // expected-error 2{{'&' cannot precede a capture when the capture default is '&'}}
  57   (void)[i, i]{ }; // expected-error{{'i' can appear only once in a capture list}}
  58   (void)[&, i, i]{ }; // expected-error{{'i' can appear only once in a capture list}}
  59   (void)[] mutable {};
  60   (void)[]->int{};
  61 #if __cplusplus <= 202002L
  62   // expected-warning@-3{{is a C++2b extension}}
  63   // expected-warning@-3{{is a C++2b extension}}
  64 #endif
  65
  66   delete []() { return new int; }(); // expected-error{{'[]' after delete interpreted as 'delete[]'}}
  67   delete [] { return new int; }(); // expected-error{{'[]' after delete interpreted as 'delete[]'}}
  68 }
  69
  70 #define bar "bar"
  71 const char *p = "foo"bar; // expected-error {{requires a space between}}
  72 #define ord - '0'
  73 int k = '4'ord; // expected-error {{requires a space between}}
  74
  75 void operator"x" _y(char); // expected-error {{must be '""'}}
  76 void operator L"" _z(char); // expected-error {{encoding prefix}}
  77 void operator "x" "y" U"z" ""_whoops "z" "y"(char); // expected-error {{must be '""'}}
  78
  79 void f() {
  80   'b'_y;
  81   'c'_z;
  82   'd'_whoops;
  83 }
  84
  85 template<typename ...Ts> struct MisplacedEllipsis {
  86   int a(Ts ...(x)); // expected-error {{'...' must immediately precede declared identifier}}
  87   int b(Ts ...&x); // expected-error {{'...' must immediately precede declared identifier}}
  88   int c(Ts ...&); // expected-error {{'...' must be innermost component of anonymous pack declaration}}
  89   int d(Ts ...(...&...)); // expected-error 2{{'...' must be innermost component of anonymous pack declaration}}
  90   int e(Ts ...*[]); // expected-error {{'...' must be innermost component of anonymous pack declaration}}
  91   int f(Ts ...(...*)()); // expected-error 2{{'...' must be innermost component of anonymous pack declaration}}
  92   int g(Ts ...()); // ok
  93 };
  94 namespace TestMisplacedEllipsisRecovery {
  95   MisplacedEllipsis<int, char> me;
  96   int i; char k;
  97   int *ip; char *kp;
  98   int ifn(); char kfn();
  99   int a = me.a(i, k);
 100   int b = me.b(i, k);
 101   int c = me.c(i, k);
 102   int d = me.d(i, k);
 103   int e = me.e(&ip, &kp);
 104   int f = me.f(ifn, kfn);
 105   int g = me.g(ifn, kfn);
 106 }
 107
 108 template<template<typename> ...Foo, // expected-error {{template template parameter requires 'class' after the parameter list}}
 109          template<template<template<typename>>>> // expected-error 3 {{template template parameter requires 'class' after the parameter list}}
 110 void func();
 111
 112 template<int *ip> struct IP { }; // expected-note{{declared here}}
 113 IP<0> ip0; // expected-error{{null non-type template argument must be cast to template parameter type 'int *'}}
 114
 115 namespace MissingSemi {
 116   struct a // expected-error {{expected ';' after struct}}
 117   struct b // expected-error {{expected ';' after struct}}
 118   enum x : int { x1, x2, x3 } // expected-error {{expected ';' after enum}}
 119   struct c // expected-error {{expected ';' after struct}}
 120   enum x : int // expected-error {{expected ';' after enum}}
 121   // FIXME: The following gives a poor diagnostic (we parse the 'int' and the
 122   // 'struct' as part of the same enum-base.
 123   //   enum x : int
 124   //   struct y
 125   namespace N {
 126     struct d // expected-error {{expected ';' after struct}}
 127   }
 128 }
 129
 130 namespace NonStaticConstexpr {
 131   struct foo {
 132     constexpr int i; // expected-error {{non-static data member cannot be constexpr; did you intend to make it const?}}
 133     constexpr int j = 7; // expected-error {{non-static data member cannot be constexpr; did you intend to make it static?}}
 134     constexpr const int k; // expected-error {{non-static data member cannot be constexpr; did you intend to make it const?}}
 135     foo() : i(3), k(4) {
 136     }
 137     static int get_j() {
 138       return j;
 139     }
 140   };
 141 }
 142
 143 int RegisterVariable() {
 144   register int n; // expected-warning {{'register' storage class specifier is deprecated}}
 145   return n;
 146 }
 147
 148 namespace MisplacedParameterPack {
 149   template <typename Args...> // expected-error {{'...' must immediately precede declared identifier}}
 150   void misplacedEllipsisInTypeParameter(Args...);
 151
 152   template <typename... Args...> // expected-error {{'...' must immediately precede declared identifier}}
 153   void redundantEllipsisInTypeParameter(Args...);
 154
 155   template <template <typename> class Args...> // expected-error {{'...' must immediately precede declared identifier}}
 156   void misplacedEllipsisInTemplateTypeParameter(Args<int>...);
 157
 158   template <template <typename> class... Args...> // expected-error {{'...' must immediately precede declared identifier}}
 159   void redundantEllipsisInTemplateTypeParameter(Args<int>...);
 160
 161   template <int N...> // expected-error {{'...' must immediately precede declared identifier}}
 162   void misplacedEllipsisInNonTypeTemplateParameter();
 163
 164   template <int... N...> // expected-error {{'...' must immediately precede declared identifier}}
 165   void redundantEllipsisInNonTypeTemplateParameter();
 166 }
 167
 168 namespace MisplacedDeclAndRefSpecAfterVirtSpec {
 169   struct B {
 170     virtual void f();
 171     virtual void f() volatile const;
 172   };
 173   struct D : B {
 174     virtual void f() override;
 175     virtual void f() override final const volatile; // expected-error {{'const' qualifier may not appear after the virtual specifier 'final'}} expected-error {{'volatile' qualifier may not appear after the virtual specifier 'final'}}
 176   };
 177   struct B2 {
 178     virtual void f() &;
 179     virtual void f() volatile const &&;
 180   };
 181   struct D2 : B2 {
 182     virtual void f() override &; // expected-error {{'&' qualifier may not appear after the virtual specifier 'override'}}
 183     virtual void f() override final const volatile &&; //  expected-error {{'const' qualifier may not appear after the virtual specifier 'final'}} expected-error {{'volatile' qualifier may not appear after the virtual specifier 'final'}} expected-error {{'&&' qualifier may not appear after the virtual specifier 'final'}}
 184   };
 185 }