clang/test/Parser/cxx11-stmt-attributes.cpp

   1 // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify -std=c++11 %s
   2
   3 void foo(int i) {
   4
   5   [[unknown_attribute]] ; // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
   6   [[unknown_attribute]] { } // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
   7   [[unknown_attribute]] if (0) { } // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
   8   [[unknown_attribute]] for (;;); // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
   9   [[unknown_attribute]] do { // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  10     [[unknown_attribute]] continue; // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  11   } while (0);
  12   [[unknown_attribute]] while (0); // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  13
  14   [[unknown_attribute]] switch (i) { // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  15     [[unknown_attribute]] case 0: // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  16     [[unknown_attribute]] default: // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  17       [[unknown_attribute]] break; // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  18   }
  19
  20   [[unknown_attribute]] goto here; // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  21   [[unknown_attribute]] here: // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  22
  23   [[unknown_attribute]] try { // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  24   } catch (...) {
  25   }
  26
  27   [[unknown_attribute]] return; // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  28
  29
  30   alignas(8) ; // expected-error {{'alignas' attribute cannot be applied to a statement}}
  31   [[noreturn]] { } // expected-error {{'noreturn' attribute cannot be applied to a statement}}
  32   [[noreturn]] if (0) { } // expected-error {{'noreturn' attribute cannot be applied to a statement}}
  33   [[noreturn]] for (;;); // expected-error {{'noreturn' attribute cannot be applied to a statement}}
  34   [[noreturn]] do { // expected-error {{'noreturn' attribute cannot be applied to a statement}}
  35     [[unavailable]] continue; // expected-warning {{unknown attribute 'unavailable' ignored}}
  36   } while (0);
  37   [[unknown_attributqqq]] while (0); // expected-warning {{unknown attribute 'unknown_attributqqq' ignored}}
  38         // TODO: remove 'qqq' part and enjoy 'empty loop body' warning here (DiagnoseEmptyLoopBody)
  39
  40   [[unknown_attribute]] while (0); // expected-warning {{unknown attribute 'unknown_attribute' ignored}}
  41
  42   [[unused]] switch (i) { // expected-warning {{unknown attribute 'unused' ignored}}
  43     [[uuid]] case 0: // expected-warning {{unknown attribute 'uuid' ignored}}
  44     [[visibility]] default: // expected-warning {{unknown attribute 'visibility' ignored}}
  45       [[carries_dependency]] break; // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  46   }
  47
  48   [[fastcall]] goto there; // expected-warning {{unknown attribute 'fastcall' ignored}}
  49   [[noinline]] there: // expected-warning {{unknown attribute 'noinline' ignored}}
  50
  51   [[lock_returned]] try { // expected-warning {{unknown attribute 'lock_returned' ignored}}
  52   } catch (...) {
  53   }
  54
  55   [[weakref]] return; // expected-warning {{unknown attribute 'weakref' ignored}}
  56
  57   [[carries_dependency]] ; // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  58   [[carries_dependency]] { } // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  59   [[carries_dependency]] if (0) { } // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  60   [[carries_dependency]] for (;;); // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  61   [[carries_dependency]] do { // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  62     [[carries_dependency]] continue; // expected-error {{'carries_dependency' attribute cannot be applied to a statement}} ignored}}
  63   } while (0);
  64   [[carries_dependency]] while (0); // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  65
  66   [[carries_dependency]] switch (i) { // expected-error {{'carries_dependency' attribute cannot be applied to a statement}} ignored}}
  67     [[carries_dependency]] case 0: // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  68     [[carries_dependency]] default: // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  69       [[carries_dependency]] break; // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  70   }
  71
  72   [[carries_dependency]] goto here; // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  73
  74   [[carries_dependency]] try { // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  75   } catch (...) {
  76   }
  77
  78   [[carries_dependency]] return; // expected-error {{'carries_dependency' attribute cannot be applied to a statement}}
  79
  80   {
  81     [[ ]] // expected-error {{an attribute list cannot appear here}}
  82 #pragma STDC FP_CONTRACT ON // expected-error {{can only appear at file scope or at the start of a compound statement}}
  83 #pragma clang fp contract(fast) // expected-error {{can only appear at file scope or at the start of a compound statement}}
  84   }
  85 }