clang/test/SemaCXX/warn-unsafe-buffer-usage-fixits-attributes-spelling.cpp

   1 // RUN: %clang_cc1 -std=c++20 -Wunsafe-buffer-usage -fdiagnostics-parseable-fixits  -fsafe-buffer-usage-suggestions -DCMD_UNSAFE_ATTR=[[clang::unsafe_buffer_usage]] %s 2>&1 | FileCheck %s
   2
   3
   4 // no need to check fix-its for definition in this test ...
   5 void foo(int *p) {
   6   int tmp = p[5];
   7 }
   8
   9 // Will use the macro defined from the command line:
  10 void foo(int *);
  11 // CHECK: fix-it:{{.*}}:{[[@LINE-1]]:1-[[@LINE-1]]:1}:"CMD_UNSAFE_ATTR "
  12 // CHECK: fix-it:{{.*}}:{[[@LINE-2]]:16-[[@LINE-2]]:16}:";\nvoid foo(std::span<int>)"
  13
  14
  15 #undef CMD_UNSAFE_ATTR
  16 void foo(int *);
  17 // CHECK: fix-it:{{.*}}:{[[@LINE-1]]:1-[[@LINE-1]]:1}:"{{\[}}{{\[}}clang::unsafe_buffer_usage{{\]}}{{\]}} "
  18 // CHECK: fix-it:{{.*}}:{[[@LINE-2]]:16-[[@LINE-2]]:16}:";\nvoid foo(std::span<int>)"
  19
  20
  21 #define UNSAFE_ATTR [[clang::unsafe_buffer_usage]]
  22
  23 void foo(int *);
  24 // CHECK: fix-it:{{.*}}:{[[@LINE-1]]:1-[[@LINE-1]]:1}:"UNSAFE_ATTR "
  25 // CHECK: fix-it:{{.*}}:{[[@LINE-2]]:16-[[@LINE-2]]:16}:";\nvoid foo(std::span<int>)"
  26
  27 #undef UNSAFE_ATTR
  28
  29 #if __has_cpp_attribute(clang::unsafe_buffer_usage)
  30 #define UNSAFE_ATTR [[clang::unsafe_buffer_usage]]
  31 #endif
  32
  33 void foo(int *);
  34 // CHECK: fix-it:{{.*}}:{[[@LINE-1]]:1-[[@LINE-1]]:1}:"UNSAFE_ATTR "
  35 // CHECK: fix-it:{{.*}}:{[[@LINE-2]]:16-[[@LINE-2]]:16}:";\nvoid foo(std::span<int>)"
  36
  37 #undef UNSAFE_ATTR
  38
  39 #if __has_cpp_attribute(clang::unsafe_buffer_usage)
  40 // we don't know how to use this macro
  41 #define UNSAFE_ATTR(x) [[clang::unsafe_buffer_usage]]
  42 #endif
  43
  44 void foo(int *);
  45 // CHECK: fix-it:{{.*}}:{[[@LINE-1]]:1-[[@LINE-1]]:1}:"{{\[}}{{\[}}clang::unsafe_buffer_usage{{\]}}{{\]}} "
  46 // CHECK: fix-it:{{.*}}:{[[@LINE-2]]:16-[[@LINE-2]]:16}:";\nvoid foo(std::span<int>)"
  47
  48 #undef UNSAFE_ATTR
  49
  50 #define UNSAFE_ATTR_1 [[clang::unsafe_buffer_usage]]
  51 #define UNSAFE_ATTR_2 [[clang::unsafe_buffer_usage]]
  52 #define UNSAFE_ATTR_3 [[clang::unsafe_buffer_usage]]
  53
  54 // Should use the last defined macro (i.e., UNSAFE_ATTR_3) for
  55 // `[[clang::unsafe_buffer_usage]]`
  56 void foo(int *p);
  57 // CHECK: fix-it:{{.*}}:{[[@LINE-1]]:1-[[@LINE-1]]:1}:"UNSAFE_ATTR_3 "
  58 // CHECK: fix-it:{{.*}}:{[[@LINE-2]]:17-[[@LINE-2]]:17}:";\nvoid foo(std::span<int> p)"
  59
  60
  61 #define WRONG_ATTR_1 [clang::unsafe_buffer_usage]]
  62 #define WRONG_ATTR_2 [[clang::unsafe_buffer_usage]
  63 #define WRONG_ATTR_3 [[clang::unsafe_buffer_usag]]
  64
  65 // The last defined macro for
  66 // `[[clang::unsafe_buffer_usage]]` is still UNSAFE_ATTR_3
  67 void foo(int *p);
  68 // CHECK: fix-it:{{.*}}:{[[@LINE-1]]:1-[[@LINE-1]]:1}:"UNSAFE_ATTR_3 "
  69 // CHECK: fix-it:{{.*}}:{[[@LINE-2]]:17-[[@LINE-2]]:17}:";\nvoid foo(std::span<int> p)"