clang/test/Parser/cxx-invalid-function-decl.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 // Check that "::new" and "::delete" in member initializer list are diagnosed
   4 // correctly and don't lead to infinite loop on parsing.
   5
   6 // Error: X() (initializer on non-constructor), "::new" is skipped.
   7 void f1() : X() ::new{}; // expected-error{{only constructors take base initializers}}
   8
   9 // Errors: first "::delete" and initializer on non-constructor, others skipped.
  10 void f2() : ::delete, ::new, X() ::new ::delete{} // expected-error{{expected class member or base class name}}
  11                                                   // expected-error@-1{{only constructors take base initializers}}
  12
  13 // Errors: the '::' token, "::delete" and initializer on non-constructor, others skipped.
  14 void f3() : ::, ::delete X(), ::new {}; // expected-error2{{expected class member or base class name}}
  15                                         // expected-error@-1{{only constructors take base initializers}}
  16
  17 template <class T>
  18 struct Base1 {
  19   T x1;
  20   Base1(T a1) : x1(a1) {}
  21 };
  22
  23 template <class T>
  24 struct Base2 {
  25   T x2;
  26   Base2(T a2) : x2(a2) {}
  27 };
  28
  29 struct S : public Base1<int>, public Base2<float> {
  30   int x;
  31
  32   // 1-st initializer is correct (just missing ','), 2-nd incorrect, skip other.
  33   S() : ::Base1<int>(0) ::new, ::Base2<float>(1.0) ::delete x(2) {} // expected-error{{expected class member or base class name}}
  34                                                                     // expected-error@-1{{missing ',' between base or member initializers}}
  35
  36   // 1-st and 2-nd are correct, errors: '::' and "::new", others skipped.
  37   S(int a) : Base1<int>(a), ::Base2<float>(1.0), ::, // expected-error{{expected class member or base class name}}
  38              ::new, ! ::delete, ::Base2<() x(3) {}   // expected-error{{expected class member or base class name}}
  39
  40   // All initializers are correct, nothing to skip, diagnose 2 missing commas.
  41   S(const S &) : Base1<int>(0) ::Base2<float>(1.0) x(2) {} // expected-error2{{missing ',' between base or member initializers}}
  42 };