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      1 //==--- DiagnosticLexKinds.td - liblex diagnostics ------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 //===----------------------------------------------------------------------===//
     11 // Lexer Diagnostics
     12 //===----------------------------------------------------------------------===//
     13 
     14 let Component = "Lex", CategoryName = "Lexical or Preprocessor Issue" in {
     15 
     16 def null_in_char_or_string : Warning<
     17   "null character(s) preserved in %select{char|string}0 literal">,
     18   InGroup<NullCharacter>;
     19 def null_in_file : Warning<"null character ignored">, InGroup<NullCharacter>;
     20 def warn_nested_block_comment : Warning<"'/*' within block comment">,
     21   InGroup<Comment>;
     22 def escaped_newline_block_comment_end : Warning<
     23   "escaped newline between */ characters at block comment end">,
     24   InGroup<Comment>;
     25 def backslash_newline_space : Warning<
     26   "backslash and newline separated by space">,
     27   InGroup<DiagGroup<"backslash-newline-escape">>;
     28 
     29 // Digraphs.
     30 def warn_cxx98_compat_less_colon_colon : Warning<
     31   "'<::' is treated as digraph '<:' (aka '[') followed by ':' in C++98">,
     32   InGroup<CXX98Compat>, DefaultIgnore;
     33 
     34 // Trigraphs.
     35 def trigraph_ignored : Warning<"trigraph ignored">, InGroup<Trigraphs>;
     36 def trigraph_ignored_block_comment : Warning<
     37   "ignored trigraph would end block comment">, InGroup<Trigraphs>;
     38 def trigraph_ends_block_comment : Warning<"trigraph ends block comment">,
     39     InGroup<Trigraphs>;
     40 def trigraph_converted : Warning<"trigraph converted to '%0' character">,
     41     InGroup<Trigraphs>;
     42 
     43 def ext_multi_line_line_comment : Extension<"multi-line // comment">,
     44     InGroup<Comment>;
     45 def ext_line_comment : Extension<
     46   "// comments are not allowed in this language">,
     47   InGroup<Comment>;
     48 def ext_no_newline_eof : Extension<"no newline at end of file">, 
     49   InGroup<NewlineEOF>;
     50 def warn_no_newline_eof : Warning<"no newline at end of file">,
     51   InGroup<NewlineEOF>, DefaultIgnore;
     52 
     53 def warn_cxx98_compat_no_newline_eof : Warning<
     54   "C++98 requires newline at end of file">,
     55   InGroup<CXX98CompatPedantic>, DefaultIgnore;
     56 
     57 def ext_dollar_in_identifier : Extension<"'$' in identifier">,
     58   InGroup<DiagGroup<"dollar-in-identifier-extension">>;
     59 def ext_charize_microsoft : Extension<
     60   "charizing operator #@ is a Microsoft extension">,
     61   InGroup<MicrosoftCharize>;
     62 def ext_comment_paste_microsoft : Extension<
     63   "pasting two '/' tokens into a '//' comment is a Microsoft extension">,
     64   InGroup<MicrosoftCommentPaste>;
     65 def ext_ctrl_z_eof_microsoft : Extension<
     66   "treating Ctrl-Z as end-of-file is a Microsoft extension">,
     67   InGroup<MicrosoftEndOfFile>;
     68 
     69 def ext_token_used : Extension<"extension used">,
     70   InGroup<DiagGroup<"language-extension-token">>;
     71 
     72 def warn_cxx11_keyword : Warning<"'%0' is a keyword in C++11">,
     73   InGroup<CXX11Compat>, DefaultIgnore;
     74 
     75 def ext_unterminated_char_or_string : ExtWarn<
     76   "missing terminating %select{'|'\"'}0 character">, InGroup<InvalidPPToken>;
     77 def ext_empty_character : ExtWarn<"empty character constant">,
     78   InGroup<InvalidPPToken>;
     79 def err_unterminated_block_comment : Error<"unterminated /* comment">;
     80 def err_invalid_character_to_charify : Error<
     81   "invalid argument to convert to character">;
     82 def err_unterminated___pragma : Error<"missing terminating ')' character">;
     83 
     84 def err_conflict_marker : Error<"version control conflict marker in file">;
     85 
     86 def err_raw_delim_too_long : Error<
     87   "raw string delimiter longer than 16 characters"
     88   "; use PREFIX( )PREFIX to delimit raw string">;
     89 def err_invalid_char_raw_delim : Error<
     90   "invalid character '%0' character in raw string delimiter"
     91   "; use PREFIX( )PREFIX to delimit raw string">;
     92 def err_unterminated_raw_string : Error<
     93   "raw string missing terminating delimiter )%0\"">;
     94 def warn_cxx98_compat_raw_string_literal : Warning<
     95   "raw string literals are incompatible with C++98">,
     96   InGroup<CXX98Compat>, DefaultIgnore;
     97 
     98 def ext_multichar_character_literal : ExtWarn<
     99   "multi-character character constant">, InGroup<MultiChar>;
    100 def ext_four_char_character_literal : Extension<
    101   "multi-character character constant">, InGroup<FourByteMultiChar>;
    102 
    103 
    104 // Unicode and UCNs
    105 def err_invalid_utf8 : Error<
    106   "source file is not valid UTF-8">;
    107 def err_non_ascii : Error<
    108   "non-ASCII characters are not allowed outside of literals and identifiers">;
    109 def ext_unicode_whitespace : ExtWarn<
    110   "treating Unicode character as whitespace">,
    111   InGroup<DiagGroup<"unicode-whitespace">>;
    112 
    113 def err_hex_escape_no_digits : Error<
    114   "\\%0 used with no following hex digits">;
    115 def warn_ucn_escape_no_digits : Warning<
    116   "\\%0 used with no following hex digits; "
    117   "treating as '\\' followed by identifier">, InGroup<Unicode>;
    118 def err_ucn_escape_incomplete : Error<
    119   "incomplete universal character name">;
    120 def warn_ucn_escape_incomplete : Warning<
    121   "incomplete universal character name; "
    122   "treating as '\\' followed by identifier">, InGroup<Unicode>;
    123 def note_ucn_four_not_eight : Note<"did you mean to use '\\u'?">;
    124 
    125 def err_ucn_escape_basic_scs : Error<
    126   "character '%0' cannot be specified by a universal character name">;
    127 def err_ucn_control_character : Error<
    128   "universal character name refers to a control character">;
    129 def err_ucn_escape_invalid : Error<"invalid universal character">;
    130 def warn_ucn_escape_surrogate : Warning<
    131   "universal character name refers to a surrogate character">,
    132   InGroup<Unicode>;
    133 
    134 def warn_c99_compat_unicode_id : Warning<
    135   "%select{using this character in an identifier|starting an identifier with "
    136   "this character}0 is incompatible with C99">,
    137   InGroup<C99Compat>, DefaultIgnore;
    138 def warn_cxx98_compat_unicode_id : Warning<
    139   "using this character in an identifier is incompatible with C++98">,
    140   InGroup<CXX98Compat>, DefaultIgnore;
    141 
    142 def warn_cxx98_compat_literal_ucn_escape_basic_scs : Warning<
    143   "specifying character '%0' with a universal character name "
    144   "is incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
    145 def warn_cxx98_compat_literal_ucn_control_character : Warning<
    146   "universal character name referring to a control character "
    147   "is incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
    148 def warn_ucn_not_valid_in_c89 : Warning<
    149   "universal character names are only valid in C99 or C++; "
    150   "treating as '\\' followed by identifier">, InGroup<Unicode>;
    151 def warn_ucn_not_valid_in_c89_literal : ExtWarn<
    152   "universal character names are only valid in C99 or C++">, InGroup<Unicode>;
    153 
    154 
    155 // Literal
    156 def ext_nonstandard_escape : Extension<
    157   "use of non-standard escape character '\\%0'">;
    158 def ext_unknown_escape : ExtWarn<"unknown escape sequence '\\%0'">,
    159   InGroup<DiagGroup<"unknown-escape-sequence">>;
    160 def err_invalid_digit : Error<
    161   "invalid digit '%0' in %select{decimal|octal|binary}1 constant">;
    162 def err_invalid_suffix_constant : Error<
    163   "invalid suffix '%0' on %select{integer|floating}1 constant">;
    164 def warn_cxx11_compat_digit_separator : Warning<
    165   "digit separators are incompatible with C++ standards before C++14">,
    166   InGroup<CXXPre14Compat>, DefaultIgnore;
    167 def err_digit_separator_not_between_digits : Error<
    168   "digit separator cannot appear at %select{start|end}0 of digit sequence">;
    169 def warn_extraneous_char_constant : Warning<
    170   "extraneous characters in character constant ignored">;
    171 def warn_char_constant_too_large : Warning<
    172   "character constant too long for its type">;
    173 def err_multichar_utf_character_literal : Error<
    174   "Unicode character literals may not contain multiple characters">;
    175 def err_exponent_has_no_digits : Error<"exponent has no digits">;
    176 def ext_imaginary_constant : Extension<
    177   "imaginary constants are a GNU extension">, InGroup<GNUImaginaryConstant>;
    178 def err_hex_constant_requires : Error<
    179   "hexadecimal floating %select{constant|literal}0 requires "
    180   "%select{an exponent|a significand}1">;
    181 def ext_hex_constant_invalid : Extension<
    182   "hexadecimal floating constants are a C99 feature">, InGroup<C99>;
    183 def ext_hex_literal_invalid : Extension<
    184   "hexadecimal floating literals are a C++1z feature">, InGroup<CXX1z>;
    185 def warn_cxx1z_hex_literal : Warning<
    186   "hexidecimal floating literals are incompatible with "
    187   "C++ standards before C++1z">,
    188   InGroup<CXXPre1zCompatPedantic>, DefaultIgnore;
    189 def ext_binary_literal : Extension<
    190   "binary integer literals are a GNU extension">, InGroup<GNUBinaryLiteral>;
    191 def ext_binary_literal_cxx14 : Extension<
    192   "binary integer literals are a C++14 extension">, InGroup<CXX14BinaryLiteral>;
    193 def warn_cxx11_compat_binary_literal : Warning<
    194   "binary integer literals are incompatible with C++ standards before C++14">,
    195   InGroup<CXXPre14CompatPedantic>, DefaultIgnore;
    196 def err_pascal_string_too_long : Error<"Pascal string is too long">;
    197 def err_escape_too_large : Error<
    198   "%select{hex|octal}0 escape sequence out of range">;
    199 def ext_string_too_long : Extension<"string literal of length %0 exceeds "
    200   "maximum length %1 that %select{C90|ISO C99|C++}2 compilers are required to "
    201   "support">, InGroup<OverlengthStrings>;
    202 def err_character_too_large : Error<
    203   "character too large for enclosing character literal type">;
    204 def warn_c99_compat_unicode_literal : Warning<
    205   "unicode literals are incompatible with C99">,
    206   InGroup<C99Compat>, DefaultIgnore;
    207 def warn_cxx98_compat_unicode_literal : Warning<
    208   "unicode literals are incompatible with C++98">,
    209   InGroup<CXX98Compat>, DefaultIgnore;
    210 def warn_cxx14_compat_u8_character_literal : Warning<
    211   "unicode literals are incompatible with C++ standards before C++1z">,
    212   InGroup<CXXPre1zCompat>, DefaultIgnore;
    213 def warn_cxx11_compat_user_defined_literal : Warning<
    214   "identifier after literal will be treated as a user-defined literal suffix "
    215   "in C++11">, InGroup<CXX11Compat>, DefaultIgnore;
    216 def warn_cxx11_compat_reserved_user_defined_literal : Warning<
    217   "identifier after literal will be treated as a reserved user-defined literal "
    218   "suffix in C++11">,
    219   InGroup<CXX11CompatReservedUserDefinedLiteral>, DefaultIgnore;
    220 def ext_reserved_user_defined_literal : ExtWarn<
    221   "invalid suffix on literal; C++11 requires a space between literal and "
    222   "identifier">, InGroup<ReservedUserDefinedLiteral>, DefaultError;
    223 def ext_ms_reserved_user_defined_literal : ExtWarn<
    224   "invalid suffix on literal; C++11 requires a space between literal and "
    225   "identifier">, InGroup<ReservedUserDefinedLiteral>;
    226 def err_unsupported_string_concat : Error<
    227   "unsupported non-standard concatenation of string literals">;
    228 def err_string_concat_mixed_suffix : Error<
    229   "differing user-defined suffixes ('%0' and '%1') in string literal "
    230   "concatenation">;
    231 def err_pp_invalid_udl : Error<
    232   "%select{character|integer}0 literal with user-defined suffix "
    233   "cannot be used in preprocessor constant expression">;
    234 def err_bad_string_encoding : Error<
    235   "illegal character encoding in string literal">;
    236 def warn_bad_string_encoding : ExtWarn<
    237   "illegal character encoding in string literal">,
    238   InGroup<InvalidSourceEncoding>;
    239 def err_bad_character_encoding : Error<
    240   "illegal character encoding in character literal">;
    241 def warn_bad_character_encoding : ExtWarn<
    242   "illegal character encoding in character literal">,
    243   InGroup<InvalidSourceEncoding>;
    244 def err_lexing_string : Error<"failure when lexing a string">;
    245 
    246 
    247 //===----------------------------------------------------------------------===//
    248 // PTH Diagnostics
    249 //===----------------------------------------------------------------------===//
    250 def err_invalid_pth_file : Error<
    251     "invalid or corrupt PTH file '%0'">;
    252 
    253 //===----------------------------------------------------------------------===//
    254 // Preprocessor Diagnostics
    255 //===----------------------------------------------------------------------===//
    256 
    257 let CategoryName = "User-Defined Issue" in {
    258 def pp_hash_warning : Warning<"%0">,
    259   InGroup<PoundWarning>, ShowInSystemHeader;
    260 def err_pp_hash_error : Error<"%0">;
    261 }
    262 
    263 def pp_include_next_in_primary : Warning<
    264   "#include_next in primary source file">,
    265   InGroup<DiagGroup<"include-next-outside-header">>;
    266 def pp_include_macros_out_of_predefines : Error<
    267   "the #__include_macros directive is only for internal use by -imacros">;
    268 def pp_include_next_absolute_path : Warning<
    269   "#include_next with absolute path">,
    270   InGroup<DiagGroup<"include-next-absolute-path">>;
    271 def ext_c99_whitespace_required_after_macro_name : ExtWarn<
    272   "ISO C99 requires whitespace after the macro name">, InGroup<C99>;
    273 def ext_missing_whitespace_after_macro_name : ExtWarn<
    274   "whitespace required after macro name">;
    275 def warn_missing_whitespace_after_macro_name : Warning<
    276   "whitespace recommended after macro name">;
    277 
    278 class NonportablePath  : Warning<
    279   "non-portable path to file '%0'; specified path differs in case from file"
    280   " name on disk">;
    281 def pp_nonportable_path : NonportablePath,
    282   InGroup<DiagGroup<"nonportable-include-path">>;
    283 def pp_nonportable_system_path : NonportablePath, DefaultIgnore,
    284   InGroup<DiagGroup<"nonportable-system-include-path">>;
    285   
    286 def pp_pragma_once_in_main_file : Warning<"#pragma once in main file">,
    287   InGroup<DiagGroup<"pragma-once-outside-header">>;
    288 def pp_pragma_sysheader_in_main_file : Warning<
    289   "#pragma system_header ignored in main file">,
    290   InGroup<DiagGroup<"pragma-system-header-outside-header">>;
    291 def pp_poisoning_existing_macro : Warning<"poisoning existing macro">;
    292 def pp_out_of_date_dependency : Warning<
    293   "current file is older than dependency %0">;
    294 def ext_pp_undef_builtin_macro : ExtWarn<"undefining builtin macro">,
    295   InGroup<BuiltinMacroRedefined>;
    296 def ext_pp_redef_builtin_macro : ExtWarn<"redefining builtin macro">,
    297   InGroup<BuiltinMacroRedefined>;
    298 def pp_disabled_macro_expansion : Warning<
    299   "disabled expansion of recursive macro">, DefaultIgnore,
    300   InGroup<DiagGroup<"disabled-macro-expansion">>;
    301 def pp_macro_not_used : Warning<"macro is not used">, DefaultIgnore,
    302   InGroup<DiagGroup<"unused-macros">>;
    303 def warn_pp_undef_identifier : Warning<
    304   "%0 is not defined, evaluates to 0">,
    305   InGroup<DiagGroup<"undef">>, DefaultIgnore;
    306 def warn_pp_ambiguous_macro : Warning<
    307   "ambiguous expansion of macro %0">, InGroup<AmbiguousMacro>;
    308 def note_pp_ambiguous_macro_chosen : Note<
    309   "expanding this definition of %0">;
    310 def note_pp_ambiguous_macro_other : Note<
    311   "other definition of %0">;
    312 def warn_pp_macro_hides_keyword : Extension<
    313   "keyword is hidden by macro definition">, InGroup<KeywordAsMacro>;
    314 def warn_pp_macro_is_reserved_id : Warning<
    315   "macro name is a reserved identifier">, DefaultIgnore,
    316   InGroup<ReservedIdAsMacro>;
    317 def warn_pp_objc_macro_redef_ignored : Warning<
    318   "ignoring redefinition of Objective-C qualifier macro">,
    319   InGroup<DiagGroup<"objc-macro-redefinition">>;
    320 
    321 def pp_invalid_string_literal : Warning<
    322   "invalid string literal, ignoring final '\\'">;
    323 def warn_pp_expr_overflow : Warning<
    324   "integer overflow in preprocessor expression">;
    325 def warn_pp_convert_to_positive : Warning<
    326   "%select{left|right}0 side of operator converted from negative value to "
    327   "unsigned: %1">;
    328 
    329 def ext_pp_import_directive : Extension<"#import is a language extension">,
    330   InGroup<DiagGroup<"import-preprocessor-directive-pedantic">>;
    331 def err_pp_import_directive_ms : Error<
    332   "#import of type library is an unsupported Microsoft feature">;
    333 def ext_pp_include_search_ms : ExtWarn<
    334   "#include resolved using non-portable Microsoft search rules as: %0">,
    335   InGroup<MicrosoftInclude>;
    336 
    337 def ext_pp_ident_directive : Extension<"#ident is a language extension">;
    338 def ext_pp_include_next_directive : Extension<
    339   "#include_next is a language extension">, InGroup<GNUIncludeNext>;
    340 def ext_pp_warning_directive : Extension<"#warning is a language extension">;
    341 
    342 def ext_pp_extra_tokens_at_eol : ExtWarn<
    343   "extra tokens at end of #%0 directive">, InGroup<ExtraTokens>;
    344   
    345 def ext_pp_comma_expr : Extension<"comma operator in operand of #if">;
    346 def ext_pp_bad_vaargs_use : Extension<
    347   "__VA_ARGS__ can only appear in the expansion of a C99 variadic macro">;
    348 def ext_pp_macro_redef : ExtWarn<"%0 macro redefined">, InGroup<MacroRedefined>;
    349 def ext_variadic_macro : Extension<"variadic macros are a C99 feature">,
    350   InGroup<VariadicMacros>;
    351 def warn_cxx98_compat_variadic_macro : Warning<
    352   "variadic macros are incompatible with C++98">,
    353   InGroup<CXX98CompatPedantic>, DefaultIgnore;
    354 def ext_named_variadic_macro : Extension<
    355   "named variadic macros are a GNU extension">, InGroup<VariadicMacros>;
    356 def err_embedded_directive : Error<
    357   "embedding a #%0 directive within macro arguments is not supported">;
    358 def ext_embedded_directive : Extension<
    359   "embedding a directive within macro arguments has undefined behavior">,
    360   InGroup<DiagGroup<"embedded-directive">>;
    361 def ext_missing_varargs_arg : Extension<
    362   "must specify at least one argument for '...' parameter of variadic macro">,
    363   InGroup<GNUZeroVariadicMacroArguments>;
    364 def ext_empty_fnmacro_arg : Extension<
    365   "empty macro arguments are a C99 feature">, InGroup<C99>;
    366 def warn_cxx98_compat_empty_fnmacro_arg : Warning<
    367   "empty macro arguments are incompatible with C++98">,
    368   InGroup<CXX98CompatPedantic>, DefaultIgnore;
    369 def note_macro_here : Note<"macro %0 defined here">;
    370 
    371 def err_pp_opencl_variadic_macros :
    372   Error<"variadic macros not supported in OpenCL">;
    373 
    374 def err_pp_invalid_directive : Error<"invalid preprocessing directive">;
    375 def err_pp_directive_required : Error<
    376   "%0 must be used within a preprocessing directive">;
    377 def err_pp_file_not_found : Error<"'%0' file not found">, DefaultFatal;
    378 def err_pp_file_not_found_not_fatal : Error<
    379   "'%0' file not found with <angled> include; use \"quotes\" instead">;
    380 def err_pp_error_opening_file : Error<
    381   "error opening file '%0': %1">, DefaultFatal;
    382 def err_pp_empty_filename : Error<"empty filename">;
    383 def err_pp_include_too_deep : Error<"#include nested too deeply">;
    384 def err_pp_expects_filename : Error<"expected \"FILENAME\" or <FILENAME>">;
    385 def err_pp_macro_not_identifier : Error<"macro name must be an identifier">;
    386 def err_pp_missing_macro_name : Error<"macro name missing">;
    387 def err_pp_missing_rparen_in_macro_def : Error<
    388   "missing ')' in macro parameter list">;
    389 def err_pp_invalid_tok_in_arg_list : Error<
    390   "invalid token in macro parameter list">;
    391 def err_pp_expected_ident_in_arg_list : Error<
    392   "expected identifier in macro parameter list">;
    393 def err_pp_expected_comma_in_arg_list : Error<
    394   "expected comma in macro parameter list">;
    395 def err_pp_duplicate_name_in_arg_list : Error<
    396   "duplicate macro parameter name %0">;
    397 def err_pp_stringize_not_parameter : Error<
    398   "'%select{#|#@}0' is not followed by a macro parameter">;
    399 def err_pp_malformed_ident : Error<"invalid #ident directive">;
    400 def err_pp_unterminated_conditional : Error<
    401   "unterminated conditional directive">;
    402 def pp_err_else_after_else : Error<"#else after #else">;
    403 def pp_err_elif_after_else : Error<"#elif after #else">;
    404 def pp_err_else_without_if : Error<"#else without #if">;
    405 def pp_err_elif_without_if : Error<"#elif without #if">;
    406 def err_pp_endif_without_if : Error<"#endif without #if">;
    407 def err_pp_expected_value_in_expr : Error<"expected value in expression">;
    408 def err_pp_expected_rparen : Error<"expected ')' in preprocessor expression">;
    409 def err_pp_expected_eol : Error<
    410   "expected end of line in preprocessor expression">;
    411 def err_pp_expected_after : Error<"missing %1 after %0">;
    412 def err_pp_nested_paren : Error<"nested parentheses not permitted in %0">;
    413 def err_pp_colon_without_question : Error<"':' without preceding '?'">;
    414 def err_pp_division_by_zero : Error<
    415   "division by zero in preprocessor expression">;
    416 def err_pp_remainder_by_zero : Error<
    417   "remainder by zero in preprocessor expression">;
    418 def err_pp_expr_bad_token_binop : Error<
    419   "token is not a valid binary operator in a preprocessor subexpression">;
    420 def err_pp_expr_bad_token_lparen : Error<
    421   "function-like macro %0 is not defined">;
    422 def err_pp_expr_bad_token_start_expr : Error<
    423   "invalid token at start of a preprocessor expression">;
    424 def err_pp_invalid_poison : Error<"can only poison identifier tokens">;
    425 def err_pp_used_poisoned_id : Error<"attempt to use a poisoned identifier">;
    426 
    427 def err_feature_check_malformed : Error<
    428   "builtin feature check macro requires a parenthesized identifier">;
    429 
    430 def warn_has_warning_invalid_option :
    431    ExtWarn<"__has_warning expected option name (e.g. \"-Wundef\")">,
    432    InGroup<MalformedWarningCheck>;
    433 
    434 def err_pp_identifier_arg_not_identifier : Error<
    435   "cannot convert %0 token to an identifier">;
    436 
    437 def warn_pragma_include_alias_mismatch_angle :
    438    ExtWarn<"angle-bracketed include <%0> cannot be aliased to double-quoted "
    439    "include \"%1\"">, InGroup<UnknownPragmas>;
    440 def warn_pragma_include_alias_mismatch_quote :
    441    ExtWarn<"double-quoted include \"%0\" cannot be aliased to angle-bracketed "
    442    "include <%1>">, InGroup<UnknownPragmas>;
    443 def warn_pragma_include_alias_expected :
    444    ExtWarn<"pragma include_alias expected '%0'">,
    445    InGroup<UnknownPragmas>;
    446 def warn_pragma_include_alias_expected_filename :
    447    ExtWarn<"pragma include_alias expected include filename">,
    448    InGroup<UnknownPragmas>;
    449 
    450 // - #pragma warning(...)
    451 def warn_pragma_warning_expected :
    452   ExtWarn<"#pragma warning expected '%0'">,
    453   InGroup<UnknownPragmas>;
    454 def warn_pragma_warning_spec_invalid :
    455   ExtWarn<"#pragma warning expected 'push', 'pop', 'default', 'disable',"
    456           " 'error', 'once', 'suppress', 1, 2, 3, or 4">,
    457   InGroup<UnknownPragmas>;
    458 def warn_pragma_warning_push_level :
    459   ExtWarn<"#pragma warning(push, level) requires a level between 0 and 4">,
    460   InGroup<UnknownPragmas>;
    461 def warn_pragma_warning_expected_number :
    462   ExtWarn<"#pragma warning expected a warning number">,
    463   InGroup<UnknownPragmas>;
    464 
    465 def err__Pragma_malformed : Error<
    466   "_Pragma takes a parenthesized string literal">;
    467 def err_pragma_message_malformed : Error<
    468   "pragma %select{message|warning|error}0 requires parenthesized string">;
    469 def err_pragma_push_pop_macro_malformed : Error<
    470    "pragma %0 requires a parenthesized string">;
    471 def warn_pragma_pop_macro_no_push : Warning<
    472    "pragma pop_macro could not pop '%0', no matching push_macro">,
    473   InGroup<IgnoredPragmas>;
    474 def warn_pragma_message : Warning<"%0">,
    475    InGroup<PoundPragmaMessage>, DefaultWarnNoWerror;
    476 def err_pragma_message : Error<"%0">;
    477 def warn_pragma_ignored : Warning<"unknown pragma ignored">,
    478    InGroup<UnknownPragmas>, DefaultIgnore;
    479 def ext_stdc_pragma_ignored : ExtWarn<"unknown pragma in STDC namespace">,
    480    InGroup<UnknownPragmas>;
    481 def ext_on_off_switch_syntax :
    482    ExtWarn<"expected 'ON' or 'OFF' or 'DEFAULT' in pragma">,
    483    InGroup<UnknownPragmas>;
    484 def ext_pragma_syntax_eod :
    485    ExtWarn<"expected end of directive in pragma">,
    486    InGroup<UnknownPragmas>;
    487 def warn_stdc_fenv_access_not_supported :
    488    Warning<"pragma STDC FENV_ACCESS ON is not supported, ignoring pragma">,
    489    InGroup<UnknownPragmas>;
    490 def warn_pragma_diagnostic_invalid :
    491    ExtWarn<"pragma diagnostic expected 'error', 'warning', 'ignored', 'fatal',"
    492             " 'push', or 'pop'">,
    493    InGroup<UnknownPragmas>;
    494 def warn_pragma_diagnostic_cannot_pop :
    495    ExtWarn<"pragma diagnostic pop could not pop, no matching push">,
    496    InGroup<UnknownPragmas>;
    497 def warn_pragma_diagnostic_invalid_option :
    498    ExtWarn<"pragma diagnostic expected option name (e.g. \"-Wundef\")">,
    499    InGroup<UnknownPragmas>;
    500 def warn_pragma_diagnostic_invalid_token :
    501    ExtWarn<"unexpected token in pragma diagnostic">,
    502    InGroup<UnknownPragmas>;
    503 def warn_pragma_diagnostic_unknown_warning :
    504    ExtWarn<"unknown warning group '%0', ignored">,
    505    InGroup<UnknownPragmas>;
    506 // - #pragma __debug
    507 def warn_pragma_debug_unexpected_command : Warning<
    508   "unexpected debug command '%0'">, InGroup<IgnoredPragmas>;
    509 def warn_pragma_debug_missing_argument : Warning<
    510   "missing argument to debug command '%0'">, InGroup<IgnoredPragmas>;
    511 
    512 def err_defined_macro_name : Error<"'defined' cannot be used as a macro name">;
    513 def err_paste_at_start : Error<
    514   "'##' cannot appear at start of macro expansion">;
    515 def err_paste_at_end : Error<"'##' cannot appear at end of macro expansion">;
    516 def ext_paste_comma : Extension<
    517   "token pasting of ',' and __VA_ARGS__ is a GNU extension">, InGroup<GNUZeroVariadicMacroArguments>;
    518 def err_unterm_macro_invoc : Error<
    519   "unterminated function-like macro invocation">;
    520 def err_too_many_args_in_macro_invoc : Error<
    521   "too many arguments provided to function-like macro invocation">;
    522 def note_suggest_parens_for_macro : Note<
    523   "parentheses are required around macro argument containing braced "
    524   "initializer list">;
    525 def note_init_list_at_beginning_of_macro_argument : Note<
    526   "cannot use initializer list at the beginning of a macro argument">;
    527 def err_too_few_args_in_macro_invoc : Error<
    528   "too few arguments provided to function-like macro invocation">;
    529 def err_pp_bad_paste : Error<
    530   "pasting formed '%0', an invalid preprocessing token">;
    531 def ext_pp_bad_paste_ms : ExtWarn<
    532   "pasting formed '%0', an invalid preprocessing token">, DefaultError,
    533   InGroup<DiagGroup<"invalid-token-paste">>;
    534 def err_pp_operator_used_as_macro_name : Error<
    535   "C++ operator %0 (aka %1) used as a macro name">;
    536 def ext_pp_operator_used_as_macro_name : Extension<
    537   err_pp_operator_used_as_macro_name.Text>, InGroup<MicrosoftCppMacro>;
    538 def err_pp_illegal_floating_literal : Error<
    539   "floating point literal in preprocessor expression">;
    540 def err_pp_line_requires_integer : Error<
    541   "#line directive requires a positive integer argument">;
    542 def ext_pp_line_zero : Extension<
    543   "#line directive with zero argument is a GNU extension">, 
    544   InGroup<GNUZeroLineDirective>;
    545 def err_pp_line_invalid_filename : Error<
    546   "invalid filename for #line directive">;
    547 def warn_pp_line_decimal : Warning<
    548   "%select{#line|GNU line marker}0 directive interprets number as decimal, not octal">;
    549 def err_pp_line_digit_sequence : Error<
    550   "%select{#line|GNU line marker}0 directive requires a simple digit sequence">;
    551 def err_pp_linemarker_requires_integer : Error<
    552   "line marker directive requires a positive integer argument">;
    553 def err_pp_linemarker_invalid_filename : Error<
    554   "invalid filename for line marker directive">;
    555 def err_pp_linemarker_invalid_flag : Error<
    556   "invalid flag line marker directive">;
    557 def err_pp_linemarker_invalid_pop : Error<
    558   "invalid line marker flag '2': cannot pop empty include stack">;
    559 def ext_pp_line_too_big : Extension<
    560   "C requires #line number to be less than %0, allowed as extension">;
    561 def warn_cxx98_compat_pp_line_too_big : Warning<
    562   "#line number greater than 32767 is incompatible with C++98">,
    563   InGroup<CXX98CompatPedantic>, DefaultIgnore;
    564 
    565 def err_pp_visibility_non_macro : Error<"no macro named %0">;
    566 
    567 def err_pp_arc_cf_code_audited_syntax : Error<"expected 'begin' or 'end'">;
    568 def err_pp_double_begin_of_arc_cf_code_audited : Error<
    569   "already inside '#pragma clang arc_cf_code_audited'">;
    570 def err_pp_unmatched_end_of_arc_cf_code_audited : Error<
    571   "not currently inside '#pragma clang arc_cf_code_audited'">;
    572 def err_pp_include_in_arc_cf_code_audited : Error<
    573   "cannot #include files inside '#pragma clang arc_cf_code_audited'">;
    574 def err_pp_eof_in_arc_cf_code_audited : Error<
    575   "'#pragma clang arc_cf_code_audited' was not ended within this file">;
    576 
    577 def warn_pp_date_time : Warning<
    578   "expansion of date or time macro is not reproducible">,
    579   ShowInSystemHeader, DefaultIgnore, InGroup<DiagGroup<"date-time">>;
    580 
    581 // Module map parsing
    582 def err_mmap_unknown_token : Error<"skipping stray token">;
    583 def err_mmap_expected_module : Error<"expected module declaration">;
    584 def err_mmap_expected_module_name : Error<"expected module name">;
    585 def err_mmap_expected_lbrace : Error<"expected '{' to start module '%0'">;
    586 def err_mmap_expected_rbrace : Error<"expected '}'">;
    587 def note_mmap_lbrace_match : Note<"to match this '{'">;
    588 def err_mmap_expected_rsquare : Error<"expected ']' to close attribute">;
    589 def note_mmap_lsquare_match : Note<"to match this ']'">;
    590 def err_mmap_expected_member : Error<
    591   "expected umbrella, header, submodule, or module export">;
    592 def err_mmap_expected_header : Error<"expected a header name after '%0'">;
    593 def err_mmap_expected_mmap_file : Error<"expected a module map file name">;
    594 def err_mmap_module_redefinition : Error<
    595   "redefinition of module '%0'">;
    596 def note_mmap_prev_definition : Note<"previously defined here">;
    597 def err_mmap_umbrella_dir_not_found : Error<
    598   "umbrella directory '%0' not found">;
    599 def err_mmap_umbrella_clash : Error<
    600   "umbrella for module '%0' already covers this directory">;
    601 def err_mmap_module_id : Error<
    602   "expected a module name or '*'">;
    603 def err_mmap_expected_library_name : Error<
    604   "expected %select{library|framework}0 name as a string">;
    605 def err_mmap_config_macro_submodule : Error<
    606   "configuration macros are only allowed in top-level modules">;
    607 def err_mmap_use_decl_submodule : Error<
    608   "use declarations are only allowed in top-level modules">;
    609 def err_mmap_expected_config_macro : Error<
    610   "expected configuration macro name after ','">;
    611 def err_mmap_expected_conflicts_comma : Error<
    612   "expected ',' after conflicting module name">;
    613 def err_mmap_expected_conflicts_message : Error<
    614   "expected a message describing the conflict with '%0'">;
    615 def err_mmap_missing_module_unqualified : Error<
    616   "no module named '%0' visible from '%1'">;
    617 def err_mmap_missing_module_qualified : Error<
    618   "no module named '%0' in '%1'">;
    619 def err_mmap_top_level_inferred_submodule : Error<
    620   "only submodules and framework modules may be inferred with wildcard syntax">;
    621 def err_mmap_inferred_no_umbrella : Error<
    622   "inferred submodules require a module with an umbrella">;
    623 def err_mmap_inferred_framework_submodule : Error<
    624   "inferred submodule cannot be a framework submodule">;
    625 def err_mmap_explicit_inferred_framework : Error<
    626   "inferred framework modules cannot be 'explicit'">;
    627 def err_mmap_missing_exclude_name : Error<
    628   "expected excluded module name">;
    629 def err_mmap_inferred_redef : Error<
    630   "redefinition of inferred submodule">;
    631 def err_mmap_expected_lbrace_wildcard : Error<
    632   "expected '{' to start inferred submodule">;
    633 def err_mmap_expected_inferred_member : Error<
    634   "expected %select{module exclusion with 'exclude'|'export *'}0">;
    635 def err_mmap_expected_export_wildcard : Error<
    636   "only '*' can be exported from an inferred submodule">;
    637 def err_mmap_explicit_top_level : Error<
    638   "'explicit' is not permitted on top-level modules">;
    639 def err_mmap_nested_submodule_id : Error<
    640   "qualified module name can only be used to define modules at the top level">;
    641 def err_mmap_expected_feature : Error<"expected a feature name">;
    642 def err_mmap_expected_attribute : Error<"expected an attribute name">;
    643 def warn_mmap_unknown_attribute : Warning<"unknown attribute '%0'">,
    644   InGroup<IgnoredAttributes>;
    645 
    646 def warn_auto_module_import : Warning<
    647   "treating #%select{include|import|include_next|__include_macros}0 as an "
    648   "import of module '%1'">, InGroup<AutoImport>, DefaultIgnore;
    649 def note_implicit_top_level_module_import_here : Note<
    650   "submodule of top-level module '%0' implicitly imported here">;
    651 def warn_uncovered_module_header : Warning<
    652   "umbrella header for module '%0' does not include header '%1'">, 
    653   InGroup<IncompleteUmbrella>;
    654 def err_expected_id_building_module : Error<
    655   "expected a module name in '__building_module' expression">;
    656 def warn_use_of_private_header_outside_module : Warning<
    657   "use of private header from outside its module: '%0'">,
    658   InGroup<DiagGroup<"private-header">>, DefaultError;
    659 def err_undeclared_use_of_module : Error<
    660   "module %0 does not depend on a module exporting '%1'">;
    661 def warn_non_modular_include_in_framework_module : Warning<
    662   "include of non-modular header inside framework module '%0'">,
    663   InGroup<NonModularIncludeInFrameworkModule>, DefaultIgnore;
    664 def warn_non_modular_include_in_module : Warning<
    665   "include of non-modular header inside module '%0'">,
    666   InGroup<NonModularIncludeInModule>, DefaultIgnore;
    667 def warn_module_conflict : Warning<
    668   "module '%0' conflicts with already-imported module '%1': %2">, 
    669   InGroup<ModuleConflict>;
    670 
    671 def warn_header_guard : Warning<
    672   "%0 is used as a header guard here, followed by #define of a different macro">,
    673   InGroup<DiagGroup<"header-guard">>;
    674 def note_header_guard : Note<
    675   "%0 is defined here; did you mean %1?">;
    676 
    677 def warn_defined_in_object_type_macro : Warning<
    678   "macro expansion producing 'defined' has undefined behavior">,
    679   InGroup<ExpansionToDefined>;
    680 def warn_defined_in_function_type_macro : Extension<
    681   "macro expansion producing 'defined' has undefined behavior">,
    682   InGroup<ExpansionToDefined>;
    683 
    684 let CategoryName = "Nullability Issue" in {
    685 
    686 def err_pp_assume_nonnull_syntax : Error<"expected 'begin' or 'end'">;
    687 def err_pp_double_begin_of_assume_nonnull : Error<
    688   "already inside '#pragma clang assume_nonnull'">;
    689 def err_pp_unmatched_end_of_assume_nonnull : Error<
    690   "not currently inside '#pragma clang assume_nonnull'">;
    691 def err_pp_include_in_assume_nonnull : Error<
    692   "cannot #include files inside '#pragma clang assume_nonnull'">;
    693 def err_pp_eof_in_assume_nonnull : Error<
    694   "'#pragma clang assume_nonnull' was not ended within this file">;
    695 
    696 }
    697 
    698 }
    699