clang/test/Preprocessor/embed___has_embed.c

   1 // RUN: %clang_cc1 -std=c23 %s -E --embed-dir=%S/Inputs -verify
   2 // expected-no-diagnostics
   3
   4 #if __has_embed(__FILE__) != __STDC_EMBED_FOUND__
   5 #error 1
   6 #elif __has_embed("media/art.txt") != __STDC_EMBED_FOUND__
   7 #error 2
   8 #elif __has_embed("asdkasdjkadsjkdsfjk") != __STDC_EMBED_NOT_FOUND__
   9 #error 3
  10 #elif __has_embed("asdkasdjkadsjkdsfjk" limit(1)) != __STDC_EMBED_NOT_FOUND__
  11 #error 4
  12 #elif __has_embed("asdkasdjkadsjkdsfjk" suffix(x) limit(1)) != __STDC_EMBED_NOT_FOUND__
  13 #error 5
  14 #elif __has_embed("asdkasdjkadsjkdsfjk" suffix(x) djsakdasjd::xmeow("xD")) != __STDC_EMBED_NOT_FOUND__
  15 #error 6
  16 #elif __has_embed(__FILE__ limit(2) prefix(y)) != __STDC_EMBED_FOUND__
  17 #error 7
  18 #elif __has_embed(__FILE__ limit(2)) != __STDC_EMBED_FOUND__
  19 #error 8
  20 // 6.10.1p7, if the search fails or any of the embed parameters in the embed
  21 // parameter sequence specified are not supported by the implementation for the
  22 // #embed directive;
  23 // We don't support one of the embed parameters.
  24 #elif __has_embed(__FILE__ dajwdwdjdahwk::meow(x)) != __STDC_EMBED_NOT_FOUND__
  25 #error 9
  26 #elif __has_embed(<media/empty>) != __STDC_EMBED_EMPTY__
  27 #error 10
  28 // 6.10.1p7: if the search for the resource succeeds and all embed parameters
  29 // in the embed parameter sequence specified are supported by the
  30 // implementation for the #embed directive and the resource is empty
  31 // Limiting to zero characters means the resource is empty.
  32 #elif __has_embed(<media/empty> limit(0)) != __STDC_EMBED_EMPTY__
  33 #error 11
  34 #elif __has_embed(<media/art.txt> limit(0)) != __STDC_EMBED_EMPTY__
  35 #error 12
  36 // Test that an offset past the end of the file produces an empty file.
  37 #elif __has_embed(<single_byte.txt> clang::offset(1)) != __STDC_EMBED_EMPTY__
  38 #error 13
  39 // Test that we apply the offset before we apply the limit. If we did this in
  40 // the reverse order, this would cause the file to be empty because we would
  41 // have limited it to 1 byte and then offset past it.
  42 #elif __has_embed(<media/art.txt> limit(1) clang::offset(12)) != __STDC_EMBED_FOUND__
  43 #error 14
  44 #elif __has_embed(<media/art.txt>) != __STDC_EMBED_FOUND__
  45 #error 15
  46 #elif __has_embed(<media/art.txt> if_empty(meow)) != __STDC_EMBED_FOUND__
  47 #error 16
  48 #endif
  49
  50 // Ensure that when __has_embed returns true, the file can actually be
  51 // embedded. This was previously failing because the way in which __has_embed
  52 // would search for files was differentl from how #embed would resolve them
  53 // when the file path included relative path markers like `./` or `../`.
  54 #if __has_embed("./embed___has_embed.c") == __STDC_EMBED_FOUND__
  55 unsigned char buffer[] = {
  56 #embed "./embed___has_embed.c"
  57 };
  58 #else
  59 #error 17
  60 #endif