error codes: Add rust_error_codes.def, refactor ErrorCode enum

gcc/rust/ChangeLog:

	* rust-diagnostics.cc: Rework `make_description` and `make_url` functions.
	* rust-diagnostics.h: Specify ErrorCode's underlying type,
	remove error_codes_strings table.
	* rust_error_codes.def: New file.

1 files changed, 21 insertions, 1035 deletions

diff --git a/gcc/rust/rust-diagnostics.h b/gcc/rust/rust-diagnostics.h
index a544645..8c1378b 100644
--- a/gcc/rust/rust-diagnostics.h
+++ b/gcc/rust/rust-diagnostics.h
@@ -48,1047 +48,33 @@
 // All other format specifiers are as defined by 'sprintf'. The final resulting
 // message is then sent to the back end via rust_be_error_at/rust_be_warning_at.
 
-// clang-format off
 // simple location
 
 // https://gist.github.com/MahadMuhammad/8c9d5fc88ea18d8c520937a8071d4185
-enum class ErrorCode 
-{ 
-  E0001, // this error code is no longer emitted by the compiler
-  E0002, // this error code is no longer emitted by the compiler
-  E0004,
-  E0005,
-  E0007, // this error code is no longer emitted by the compiler
-  E0009, // this error code is no longer emitted by the compiler
-  E0010,
-  E0013,
-  E0014, // this error code is no longer emitted by the compiler
-  E0015,
-  E0023,
-  E0025,
-  E0026,
-  E0027,
-  E0029,
-  E0030,
-  E0033,
-  E0034,
-  E0038,
-  E0040,
-  E0044,
-  E0045,
-  E0046,
-  E0049,
-  E0050,
-  E0053,
-  E0054,
-  E0055,
-  E0057,
-  E0059,
-  E0060,
-  E0061,
-  E0062,
-  E0063,
-  E0067,
-  E0069,
-  E0070,
-  E0071,
-  E0072,
-  E0073, // this error code is no longer emitted by the compiler
-  E0074, // this error code is no longer emitted by the compiler
-  E0075,
-  E0076,
-  E0077,
-  E0080,
-  E0081,
-  E0084,
-  E0087, // this error code is no longer emitted by the compiler
-  E0088, // this error code is no longer emitted by the compiler
-  E0089, // this error code is no longer emitted by the compiler
-  E0090, // this error code is no longer emitted by the compiler
-  E0091,
-  E0092,
-  E0093,
-  E0094,
-  E0106,
-  E0107,
-  E0109,
-  E0110, // this error code is no longer emitted by the compiler
-  E0116,
-  E0117,
-  E0118,
-  E0119,
-  E0120,
-  E0121,
-  E0124,
-  E0128,
-  E0130,
-  E0131,
-  E0132,
-  E0133,
-  E0136, // this error code is no longer emitted by the compiler
-  E0137, // this error code is no longer emitted by the compiler
-  E0138,
-  E0139, // this error code is no longer emitted by the compiler
-  E0152,
-  E0154, // this error code is no longer emitted by the compiler
-  E0158,
-  E0161,
-  E0162, // this error code is no longer emitted by the compiler
-  E0164,
-  E0165, // this error code is no longer emitted by the compiler
-  E0170,
-  E0178,
-  E0183,
-  E0184,
-  E0185,
-  E0186,
-  E0191,
-  E0192, // this error code is no longer emitted by the compiler
-  E0193, // this error code is no longer emitted by the compiler
-  E0195,
-  E0197,
-  E0198,
-  E0199,
-  E0200,
-  E0201,
-  E0203,
-  E0204,
-  E0205, // this error code is no longer emitted by the compiler
-  E0206,
-  E0207,
-  E0208, // this error code is no longer emitted by the compiler
-  E0210,
-  E0211, // this error code is no longer emitted by the compiler
-  E0212,
-  E0214,
-  E0220,
-  E0221,
-  E0222,
-  E0223,
-  E0224,
-  E0225,
-  E0226,
-  E0227,
-  E0228,
-  E0229,
-  E0230,
-  E0231,
-  E0232,
-  E0243, // this error code is no longer emitted by the compiler
-  E0244, // this error code is no longer emitted by the compiler
-  E0251, // this error code is no longer emitted by the compiler
-  E0252,
-  E0253,
-  E0254,
-  E0255,
-  E0256, // this error code is no longer emitted by the compiler
-  E0259,
-  E0260,
-  E0261,
-  E0262,
-  E0263, // this error code is no longer emitted by the compiler
-  E0264,
-  E0267,
-  E0268,
-  E0271,
-  E0275,
-  E0276,
-  E0277,
-  E0281, // this error code is no longer emitted by the compiler
-  E0282,
-  E0283,
-  E0284,
-  E0297, // this error code is no longer emitted by the compiler
-  E0301, // this error code is no longer emitted by the compiler
-  E0302, // this error code is no longer emitted by the compiler
-  E0303, // this error code is no longer emitted by the compiler
-  E0307,
-  E0308,
-  E0309,
-  E0310,
-  E0311,
-  E0312, // this error code is no longer emitted by the compiler
-  E0316,
-  E0317,
-  E0320,
-  E0321,
-  E0322,
-  E0323,
-  E0324,
-  E0325,
-  E0326,
-  E0328,
-  E0329, // this error code is no longer emitted by the compiler
-  E0364,
-  E0365,
-  E0366,
-  E0367,
-  E0368,
-  E0369,
-  E0370,
-  E0371,
-  E0373,
-  E0374,
-  E0375,
-  E0376,
-  E0377,
-  E0378,
-  E0379,
-  E0380,
-  E0381,
-  E0382,
-  E0383, // this error code is no longer emitted by the compiler
-  E0384,
-  E0386, // this error code is no longer emitted by the compiler
-  E0387, // this error code is no longer emitted by the compiler
-  E0388, // this error code is no longer emitted by the compiler
-  E0389, // this error code is no longer emitted by the compiler
-  E0390,
-  E0391,
-  E0392,
-  E0393,
-  E0398, // this error code is no longer emitted by the compiler
-  E0399,
-  E0401,
-  E0403,
-  E0404,
-  E0405,
-  E0407,
-  E0408,
-  E0409,
-  E0411,
-  E0412,
-  E0415,
-  E0416,
-  E0422,
-  E0423,
-  E0424,
-  E0425,
-  E0426,
-  E0428,
-  E0429,
-  E0430,
-  E0431,
-  E0432,
-  E0433,
-  E0434,
-  E0435,
-  E0436,
-  E0437,
-  E0438,
-  E0439, // this error code is no longer emitted by the compiler
-  E0445,
-  E0446,
-  E0447, // this error code is no longer emitted by the compiler
-  E0448, // this error code is no longer emitted by the compiler
-  E0449,
-  E0451,
-  E0452,
-  E0453,
-  E0454,
-  E0455,
-  E0457,
-  E0458,
-  E0459,
-  E0460,
-  E0461,
-  E0462,
-  E0463,
-  E0464,
-  E0466,
-  E0468,
-  E0469,
-  E0472,
-  E0476,
-  E0477, // this error code is no longer emitted by the compiler
-  E0478,
-  E0482, // this error code is no longer emitted by the compiler
-  E0491,
-  E0492,
-  E0493,
-  E0495, // this error code is no longer emitted by the compiler
-  E0496,
-  E0497, // this error code is no longer emitted by the compiler
-  E0498,
-  E0499,
-  E0500,
-  E0501,
-  E0502,
-  E0503,
-  E0504, // this error code is no longer emitted by the compiler
-  E0505,
-  E0506,
-  E0507,
-  E0508,
-  E0509,
-  E0510,
-  E0511,
-  E0512,
-  E0514,
-  E0515,
-  E0516,
-  E0517,
-  E0518,
-  E0519,
-  E0520,
-  E0521,
-  E0522,
-  E0523, // this error code is no longer emitted by the compiler
-  E0524,
-  E0525,
-  E0527,
-  E0528,
-  E0529,
-  E0530,
-  E0531,
-  E0532,
-  E0533,
-  E0534,
-  E0535,
-  E0536,
-  E0537,
-  E0538,
-  E0539,
-  E0541,
-  E0542,
-  E0543,
-  E0544,
-  E0545,
-  E0546,
-  E0547,
-  E0549,
-  E0550,
-  E0551,
-  E0552,
-  E0554,
-  E0556,
-  E0557,
-  E0559,
-  E0560,
-  E0561,
-  E0562,
-  E0565,
-  E0566,
-  E0567,
-  E0568,
-  E0569,
-  E0570,
-  E0571,
-  E0572,
-  E0573,
-  E0574,
-  E0575,
-  E0576,
-  E0577,
-  E0578,
-  E0579,
-  E0580,
-  E0581,
-  E0582,
-  E0583,
-  E0584,
-  E0585,
-  E0586,
-  E0587,
-  E0588,
-  E0589,
-  E0590,
-  E0591,
-  E0592,
-  E0593,
-  E0594,
-  E0595, // this error code is no longer emitted by the compiler
-  E0596,
-  E0597,
-  E0599,
-  E0600,
-  E0601,
-  E0602,
-  E0603,
-  E0604,
-  E0605,
-  E0606,
-  E0607,
-  E0608,
-  E0609,
-  E0610,
-  E0614,
-  E0615,
-  E0616,
-  E0617,
-  E0618,
-  E0619, // this error code is no longer emitted by the compiler
-  E0620,
-  E0621,
-  E0622,
-  E0623,
-  E0624,
-  E0625,
-  E0626,
-  E0627,
-  E0628,
-  E0631,
-  E0632, // this error code is no longer emitted by the compiler
-  E0633, // this error code is no longer emitted by the compiler
-  E0634,
-  E0635,
-  E0636,
-  E0637,
-  E0638,
-  E0639,
-  E0640,
-  E0641,
-  E0642,
-  E0643,
-  E0644,
-  E0646,
-  E0647,
-  E0648,
-  E0657,
-  E0658,
-  E0659,
-  E0660, // this error code is no longer emitted by the compiler
-  E0661, // this error code is no longer emitted by the compiler
-  E0662, // this error code is no longer emitted by the compiler
-  E0663, // this error code is no longer emitted by the compiler
-  E0664, // this error code is no longer emitted by the compiler
-  E0665, // this error code is no longer emitted by the compiler
-  E0666,
-  E0667,
-  E0668, // this error code is no longer emitted by the compiler
-  E0669, // this error code is no longer emitted by the compiler
-  E0670,
-  E0671, // this error code is no longer emitted by the compiler
-  E0687, // this error code is no longer emitted by the compiler
-  E0688, // this error code is no longer emitted by the compiler
-  E0689,
-  E0690,
-  E0691,
-  E0692,
-  E0693,
-  E0695,
-  E0696,
-  E0697,
-  E0698,
-  E0699,
-  E0700,
-  E0701,
-  E0703,
-  E0704,
-  E0705,
-  E0706,
-  E0708,
-  E0710,
-  E0711,
-  E0712,
-  E0713,
-  E0714,
-  E0715,
-  E0716,
-  E0717,
-  E0718,
-  E0719,
-  E0720,
-  E0722,
-  E0724,
-  E0725,
-  E0726,
-  E0727,
-  E0728,
-  E0729,
-  E0730,
-  E0731,
-  E0732,
-  E0733,
-  E0734,
-  E0735,
-  E0736,
-  E0737,
-  E0739,
-  E0740,
-  E0741,
-  E0742,
-  E0743,
-  E0744,
-  E0745,
-  E0746,
-  E0747,
-  E0748,
-  E0749,
-  E0750,
-  E0751,
-  E0752,
-  E0753,
-  E0754,
-  E0755,
-  E0756,
-  E0757,
-  E0758,
-  E0759, // this error code is no longer emitted by the compiler
-  E0760, // this error code is no longer emitted by the compiler
-  E0761,
-  E0762,
-  E0763,
-  E0764,
-  E0765,
-  E0766,
-  E0767,
-  E0768,
-  E0769,
-  E0770,
-  E0771,
-  E0772, // this error code is no longer emitted by the compiler
-  E0773,
-  E0774,
-  E0775,
-  E0776,
-  E0777,
-  E0778,
-  E0779,
-  E0780,
-  E0781,
-  E0782,
-  E0783,
-  E0784,
-  E0785,
-  E0786,
-  E0787,
-  E0788,
-  E0789,
-  E0790,
-  E0791,
-  E0792,
-  E0793,
-  E0794
-};
-
-// Custom hash function for ErrorCode, for older version of gcc
-namespace std {
-    template <>
-    struct hash<ErrorCode> {
-      size_t operator() (const ErrorCode &error) const
-      {
-        return hash<std::underlying_type<ErrorCode>::type> () (
-          static_cast<std::underlying_type<ErrorCode>::type> (error));
-      }
-    };
-}
 
-// see https://github.com/Rust-GCC/gccrs/pull/2468
-#define XSTR(A) STR(A)
-#define STR(A) #A
-#define ERROR_CODE(NUM) NUM
-#define TABLE_TO_MAP(NUM) { ErrorCode::ERROR_CODE(NUM), XSTR(ERROR_CODE(NUM)) } 
-
-static std::unordered_map<ErrorCode,const char *> error_code_strings = {
-TABLE_TO_MAP(E0001),
-TABLE_TO_MAP(E0002),
-TABLE_TO_MAP(E0004),
-TABLE_TO_MAP(E0005),
-TABLE_TO_MAP(E0007),
-TABLE_TO_MAP(E0009),
-TABLE_TO_MAP(E0010),
-TABLE_TO_MAP(E0013),
-TABLE_TO_MAP(E0014),
-TABLE_TO_MAP(E0015),
-TABLE_TO_MAP(E0023),
-TABLE_TO_MAP(E0025),
-TABLE_TO_MAP(E0026),
-TABLE_TO_MAP(E0027),
-TABLE_TO_MAP(E0029),
-TABLE_TO_MAP(E0030),
-TABLE_TO_MAP(E0033),
-TABLE_TO_MAP(E0034),
-TABLE_TO_MAP(E0038),
-TABLE_TO_MAP(E0040),
-TABLE_TO_MAP(E0044),
-TABLE_TO_MAP(E0045),
-TABLE_TO_MAP(E0046),
-TABLE_TO_MAP(E0049),
-TABLE_TO_MAP(E0050),
-TABLE_TO_MAP(E0053),
-TABLE_TO_MAP(E0054),
-TABLE_TO_MAP(E0055),
-TABLE_TO_MAP(E0057),
-TABLE_TO_MAP(E0059),
-TABLE_TO_MAP(E0060),
-TABLE_TO_MAP(E0061),
-TABLE_TO_MAP(E0062),
-TABLE_TO_MAP(E0063),
-TABLE_TO_MAP(E0067),
-TABLE_TO_MAP(E0069),
-TABLE_TO_MAP(E0070),
-TABLE_TO_MAP(E0071),
-TABLE_TO_MAP(E0072),
-TABLE_TO_MAP(E0073),
-TABLE_TO_MAP(E0074),
-TABLE_TO_MAP(E0075),
-TABLE_TO_MAP(E0076),
-TABLE_TO_MAP(E0077),
-TABLE_TO_MAP(E0080),
-TABLE_TO_MAP(E0081),
-TABLE_TO_MAP(E0084),
-TABLE_TO_MAP(E0087),
-TABLE_TO_MAP(E0088),
-TABLE_TO_MAP(E0089),
-TABLE_TO_MAP(E0090),
-TABLE_TO_MAP(E0091),
-TABLE_TO_MAP(E0092),
-TABLE_TO_MAP(E0093),
-TABLE_TO_MAP(E0094),
-TABLE_TO_MAP(E0106),
-TABLE_TO_MAP(E0107),
-TABLE_TO_MAP(E0109),
-TABLE_TO_MAP(E0110),
-TABLE_TO_MAP(E0116),
-TABLE_TO_MAP(E0117),
-TABLE_TO_MAP(E0118),
-TABLE_TO_MAP(E0119),
-TABLE_TO_MAP(E0120),
-TABLE_TO_MAP(E0121),
-TABLE_TO_MAP(E0124),
-TABLE_TO_MAP(E0128),
-TABLE_TO_MAP(E0130),
-TABLE_TO_MAP(E0131),
-TABLE_TO_MAP(E0132),
-TABLE_TO_MAP(E0133),
-TABLE_TO_MAP(E0136),
-TABLE_TO_MAP(E0137),
-TABLE_TO_MAP(E0138),
-TABLE_TO_MAP(E0139),
-TABLE_TO_MAP(E0152),
-TABLE_TO_MAP(E0154),
-TABLE_TO_MAP(E0158),
-TABLE_TO_MAP(E0161),
-TABLE_TO_MAP(E0162),
-TABLE_TO_MAP(E0164),
-TABLE_TO_MAP(E0165),
-TABLE_TO_MAP(E0170),
-TABLE_TO_MAP(E0178),
-TABLE_TO_MAP(E0183),
-TABLE_TO_MAP(E0184),
-TABLE_TO_MAP(E0185),
-TABLE_TO_MAP(E0186),
-TABLE_TO_MAP(E0191),
-TABLE_TO_MAP(E0192),
-TABLE_TO_MAP(E0193),
-TABLE_TO_MAP(E0195),
-TABLE_TO_MAP(E0197),
-TABLE_TO_MAP(E0198),
-TABLE_TO_MAP(E0199),
-TABLE_TO_MAP(E0200),
-TABLE_TO_MAP(E0201),
-TABLE_TO_MAP(E0203),
-TABLE_TO_MAP(E0204),
-TABLE_TO_MAP(E0205),
-TABLE_TO_MAP(E0206),
-TABLE_TO_MAP(E0207),
-TABLE_TO_MAP(E0208),
-TABLE_TO_MAP(E0210),
-TABLE_TO_MAP(E0211),
-TABLE_TO_MAP(E0212),
-TABLE_TO_MAP(E0214),
-TABLE_TO_MAP(E0220),
-TABLE_TO_MAP(E0221),
-TABLE_TO_MAP(E0222),
-TABLE_TO_MAP(E0223),
-TABLE_TO_MAP(E0224),
-TABLE_TO_MAP(E0225),
-TABLE_TO_MAP(E0226),
-TABLE_TO_MAP(E0227),
-TABLE_TO_MAP(E0228),
-TABLE_TO_MAP(E0229),
-TABLE_TO_MAP(E0230),
-TABLE_TO_MAP(E0231),
-TABLE_TO_MAP(E0232),
-TABLE_TO_MAP(E0243),
-TABLE_TO_MAP(E0244),
-TABLE_TO_MAP(E0251),
-TABLE_TO_MAP(E0252),
-TABLE_TO_MAP(E0253),
-TABLE_TO_MAP(E0254),
-TABLE_TO_MAP(E0255),
-TABLE_TO_MAP(E0256),
-TABLE_TO_MAP(E0259),
-TABLE_TO_MAP(E0260),
-TABLE_TO_MAP(E0261),
-TABLE_TO_MAP(E0262),
-TABLE_TO_MAP(E0263),
-TABLE_TO_MAP(E0264),
-TABLE_TO_MAP(E0267),
-TABLE_TO_MAP(E0268),
-TABLE_TO_MAP(E0271),
-TABLE_TO_MAP(E0275),
-TABLE_TO_MAP(E0276),
-TABLE_TO_MAP(E0277),
-TABLE_TO_MAP(E0281),
-TABLE_TO_MAP(E0282),
-TABLE_TO_MAP(E0283),
-TABLE_TO_MAP(E0284),
-TABLE_TO_MAP(E0297),
-TABLE_TO_MAP(E0301),
-TABLE_TO_MAP(E0302),
-TABLE_TO_MAP(E0303),
-TABLE_TO_MAP(E0307),
-TABLE_TO_MAP(E0308),
-TABLE_TO_MAP(E0309),
-TABLE_TO_MAP(E0310),
-TABLE_TO_MAP(E0311),
-TABLE_TO_MAP(E0312),
-TABLE_TO_MAP(E0316),
-TABLE_TO_MAP(E0317),
-TABLE_TO_MAP(E0320),
-TABLE_TO_MAP(E0321),
-TABLE_TO_MAP(E0322),
-TABLE_TO_MAP(E0323),
-TABLE_TO_MAP(E0324),
-TABLE_TO_MAP(E0325),
-TABLE_TO_MAP(E0326),
-TABLE_TO_MAP(E0328),
-TABLE_TO_MAP(E0329),
-TABLE_TO_MAP(E0364),
-TABLE_TO_MAP(E0365),
-TABLE_TO_MAP(E0366),
-TABLE_TO_MAP(E0367),
-TABLE_TO_MAP(E0368),
-TABLE_TO_MAP(E0369),
-TABLE_TO_MAP(E0370),
-TABLE_TO_MAP(E0371),
-TABLE_TO_MAP(E0373),
-TABLE_TO_MAP(E0374),
-TABLE_TO_MAP(E0375),
-TABLE_TO_MAP(E0376),
-TABLE_TO_MAP(E0377),
-TABLE_TO_MAP(E0378),
-TABLE_TO_MAP(E0379),
-TABLE_TO_MAP(E0380),
-TABLE_TO_MAP(E0381),
-TABLE_TO_MAP(E0382),
-TABLE_TO_MAP(E0383),
-TABLE_TO_MAP(E0384),
-TABLE_TO_MAP(E0386),
-TABLE_TO_MAP(E0387),
-TABLE_TO_MAP(E0388),
-TABLE_TO_MAP(E0389),
-TABLE_TO_MAP(E0390),
-TABLE_TO_MAP(E0391),
-TABLE_TO_MAP(E0392),
-TABLE_TO_MAP(E0393),
-TABLE_TO_MAP(E0398),
-TABLE_TO_MAP(E0399),
-TABLE_TO_MAP(E0401),
-TABLE_TO_MAP(E0403),
-TABLE_TO_MAP(E0404),
-TABLE_TO_MAP(E0405),
-TABLE_TO_MAP(E0407),
-TABLE_TO_MAP(E0408),
-TABLE_TO_MAP(E0409),
-TABLE_TO_MAP(E0411),
-TABLE_TO_MAP(E0412),
-TABLE_TO_MAP(E0415),
-TABLE_TO_MAP(E0416),
-TABLE_TO_MAP(E0422),
-TABLE_TO_MAP(E0423),
-TABLE_TO_MAP(E0424),
-TABLE_TO_MAP(E0425),
-TABLE_TO_MAP(E0426),
-TABLE_TO_MAP(E0428),
-TABLE_TO_MAP(E0429),
-TABLE_TO_MAP(E0430),
-TABLE_TO_MAP(E0431),
-TABLE_TO_MAP(E0432),
-TABLE_TO_MAP(E0433),
-TABLE_TO_MAP(E0434),
-TABLE_TO_MAP(E0435),
-TABLE_TO_MAP(E0436),
-TABLE_TO_MAP(E0437),
-TABLE_TO_MAP(E0438),
-TABLE_TO_MAP(E0439),
-TABLE_TO_MAP(E0445),
-TABLE_TO_MAP(E0446),
-TABLE_TO_MAP(E0447),
-TABLE_TO_MAP(E0448),
-TABLE_TO_MAP(E0449),
-TABLE_TO_MAP(E0451),
-TABLE_TO_MAP(E0452),
-TABLE_TO_MAP(E0453),
-TABLE_TO_MAP(E0454),
-TABLE_TO_MAP(E0455),
-TABLE_TO_MAP(E0457),
-TABLE_TO_MAP(E0458),
-TABLE_TO_MAP(E0459),
-TABLE_TO_MAP(E0460),
-TABLE_TO_MAP(E0461),
-TABLE_TO_MAP(E0462),
-TABLE_TO_MAP(E0463),
-TABLE_TO_MAP(E0464),
-TABLE_TO_MAP(E0466),
-TABLE_TO_MAP(E0468),
-TABLE_TO_MAP(E0469),
-TABLE_TO_MAP(E0472),
-TABLE_TO_MAP(E0476),
-TABLE_TO_MAP(E0477),
-TABLE_TO_MAP(E0478),
-TABLE_TO_MAP(E0482),
-TABLE_TO_MAP(E0491),
-TABLE_TO_MAP(E0492),
-TABLE_TO_MAP(E0493),
-TABLE_TO_MAP(E0495),
-TABLE_TO_MAP(E0496),
-TABLE_TO_MAP(E0497),
-TABLE_TO_MAP(E0498),
-TABLE_TO_MAP(E0499),
-TABLE_TO_MAP(E0500),
-TABLE_TO_MAP(E0501),
-TABLE_TO_MAP(E0502),
-TABLE_TO_MAP(E0503),
-TABLE_TO_MAP(E0504),
-TABLE_TO_MAP(E0505),
-TABLE_TO_MAP(E0506),
-TABLE_TO_MAP(E0507),
-TABLE_TO_MAP(E0508),
-TABLE_TO_MAP(E0509),
-TABLE_TO_MAP(E0510),
-TABLE_TO_MAP(E0511),
-TABLE_TO_MAP(E0512),
-TABLE_TO_MAP(E0514),
-TABLE_TO_MAP(E0515),
-TABLE_TO_MAP(E0516),
-TABLE_TO_MAP(E0517),
-TABLE_TO_MAP(E0518),
-TABLE_TO_MAP(E0519),
-TABLE_TO_MAP(E0520),
-TABLE_TO_MAP(E0521),
-TABLE_TO_MAP(E0522),
-TABLE_TO_MAP(E0523),
-TABLE_TO_MAP(E0524),
-TABLE_TO_MAP(E0525),
-TABLE_TO_MAP(E0527),
-TABLE_TO_MAP(E0528),
-TABLE_TO_MAP(E0529),
-TABLE_TO_MAP(E0530),
-TABLE_TO_MAP(E0531),
-TABLE_TO_MAP(E0532),
-TABLE_TO_MAP(E0533),
-TABLE_TO_MAP(E0534),
-TABLE_TO_MAP(E0535),
-TABLE_TO_MAP(E0536),
-TABLE_TO_MAP(E0537),
-TABLE_TO_MAP(E0538),
-TABLE_TO_MAP(E0539),
-TABLE_TO_MAP(E0541),
-TABLE_TO_MAP(E0542),
-TABLE_TO_MAP(E0543),
-TABLE_TO_MAP(E0544),
-TABLE_TO_MAP(E0545),
-TABLE_TO_MAP(E0546),
-TABLE_TO_MAP(E0547),
-TABLE_TO_MAP(E0549),
-TABLE_TO_MAP(E0550),
-TABLE_TO_MAP(E0551),
-TABLE_TO_MAP(E0552),
-TABLE_TO_MAP(E0554),
-TABLE_TO_MAP(E0556),
-TABLE_TO_MAP(E0557),
-TABLE_TO_MAP(E0559),
-TABLE_TO_MAP(E0560),
-TABLE_TO_MAP(E0561),
-TABLE_TO_MAP(E0562),
-TABLE_TO_MAP(E0565),
-TABLE_TO_MAP(E0566),
-TABLE_TO_MAP(E0567),
-TABLE_TO_MAP(E0568),
-TABLE_TO_MAP(E0569),
-TABLE_TO_MAP(E0570),
-TABLE_TO_MAP(E0571),
-TABLE_TO_MAP(E0572),
-TABLE_TO_MAP(E0573),
-TABLE_TO_MAP(E0574),
-TABLE_TO_MAP(E0575),
-TABLE_TO_MAP(E0576),
-TABLE_TO_MAP(E0577),
-TABLE_TO_MAP(E0578),
-TABLE_TO_MAP(E0579),
-TABLE_TO_MAP(E0580),
-TABLE_TO_MAP(E0581),
-TABLE_TO_MAP(E0582),
-TABLE_TO_MAP(E0583),
-TABLE_TO_MAP(E0584),
-TABLE_TO_MAP(E0585),
-TABLE_TO_MAP(E0586),
-TABLE_TO_MAP(E0587),
-TABLE_TO_MAP(E0588),
-TABLE_TO_MAP(E0589),
-TABLE_TO_MAP(E0590),
-TABLE_TO_MAP(E0591),
-TABLE_TO_MAP(E0592),
-TABLE_TO_MAP(E0593),
-TABLE_TO_MAP(E0594),
-TABLE_TO_MAP(E0595),
-TABLE_TO_MAP(E0596),
-TABLE_TO_MAP(E0597),
-TABLE_TO_MAP(E0599),
-TABLE_TO_MAP(E0600),
-TABLE_TO_MAP(E0601),
-TABLE_TO_MAP(E0602),
-TABLE_TO_MAP(E0603),
-TABLE_TO_MAP(E0604),
-TABLE_TO_MAP(E0605),
-TABLE_TO_MAP(E0606),
-TABLE_TO_MAP(E0607),
-TABLE_TO_MAP(E0608),
-TABLE_TO_MAP(E0609),
-TABLE_TO_MAP(E0610),
-TABLE_TO_MAP(E0614),
-TABLE_TO_MAP(E0615),
-TABLE_TO_MAP(E0616),
-TABLE_TO_MAP(E0617),
-TABLE_TO_MAP(E0618),
-TABLE_TO_MAP(E0619),
-TABLE_TO_MAP(E0620),
-TABLE_TO_MAP(E0621),
-TABLE_TO_MAP(E0622),
-TABLE_TO_MAP(E0623),
-TABLE_TO_MAP(E0624),
-TABLE_TO_MAP(E0625),
-TABLE_TO_MAP(E0626),
-TABLE_TO_MAP(E0627),
-TABLE_TO_MAP(E0628),
-TABLE_TO_MAP(E0631),
-TABLE_TO_MAP(E0632),
-TABLE_TO_MAP(E0633),
-TABLE_TO_MAP(E0634),
-TABLE_TO_MAP(E0635),
-TABLE_TO_MAP(E0636),
-TABLE_TO_MAP(E0637),
-TABLE_TO_MAP(E0638),
-TABLE_TO_MAP(E0639),
-TABLE_TO_MAP(E0640),
-TABLE_TO_MAP(E0641),
-TABLE_TO_MAP(E0642),
-TABLE_TO_MAP(E0643),
-TABLE_TO_MAP(E0644),
-TABLE_TO_MAP(E0646),
-TABLE_TO_MAP(E0647),
-TABLE_TO_MAP(E0648),
-TABLE_TO_MAP(E0657),
-TABLE_TO_MAP(E0658),
-TABLE_TO_MAP(E0659),
-TABLE_TO_MAP(E0660),
-TABLE_TO_MAP(E0661),
-TABLE_TO_MAP(E0662),
-TABLE_TO_MAP(E0663),
-TABLE_TO_MAP(E0664),
-TABLE_TO_MAP(E0665),
-TABLE_TO_MAP(E0666),
-TABLE_TO_MAP(E0667),
-TABLE_TO_MAP(E0668),
-TABLE_TO_MAP(E0669),
-TABLE_TO_MAP(E0670),
-TABLE_TO_MAP(E0671),
-TABLE_TO_MAP(E0687),
-TABLE_TO_MAP(E0688),
-TABLE_TO_MAP(E0689),
-TABLE_TO_MAP(E0690),
-TABLE_TO_MAP(E0691),
-TABLE_TO_MAP(E0692),
-TABLE_TO_MAP(E0693),
-TABLE_TO_MAP(E0695),
-TABLE_TO_MAP(E0696),
-TABLE_TO_MAP(E0697),
-TABLE_TO_MAP(E0698),
-TABLE_TO_MAP(E0699),
-TABLE_TO_MAP(E0700),
-TABLE_TO_MAP(E0701),
-TABLE_TO_MAP(E0703),
-TABLE_TO_MAP(E0704),
-TABLE_TO_MAP(E0705),
-TABLE_TO_MAP(E0706),
-TABLE_TO_MAP(E0708),
-TABLE_TO_MAP(E0710),
-TABLE_TO_MAP(E0711),
-TABLE_TO_MAP(E0712),
-TABLE_TO_MAP(E0713),
-TABLE_TO_MAP(E0714),
-TABLE_TO_MAP(E0715),
-TABLE_TO_MAP(E0716),
-TABLE_TO_MAP(E0717),
-TABLE_TO_MAP(E0718),
-TABLE_TO_MAP(E0719),
-TABLE_TO_MAP(E0720),
-TABLE_TO_MAP(E0722),
-TABLE_TO_MAP(E0724),
-TABLE_TO_MAP(E0725),
-TABLE_TO_MAP(E0726),
-TABLE_TO_MAP(E0727),
-TABLE_TO_MAP(E0728),
-TABLE_TO_MAP(E0729),
-TABLE_TO_MAP(E0730),
-TABLE_TO_MAP(E0731),
-TABLE_TO_MAP(E0732),
-TABLE_TO_MAP(E0733),
-TABLE_TO_MAP(E0734),
-TABLE_TO_MAP(E0735),
-TABLE_TO_MAP(E0736),
-TABLE_TO_MAP(E0737),
-TABLE_TO_MAP(E0739),
-TABLE_TO_MAP(E0740),
-TABLE_TO_MAP(E0741),
-TABLE_TO_MAP(E0742),
-TABLE_TO_MAP(E0743),
-TABLE_TO_MAP(E0744),
-TABLE_TO_MAP(E0745),
-TABLE_TO_MAP(E0746),
-TABLE_TO_MAP(E0747),
-TABLE_TO_MAP(E0748),
-TABLE_TO_MAP(E0749),
-TABLE_TO_MAP(E0750),
-TABLE_TO_MAP(E0751),
-TABLE_TO_MAP(E0752),
-TABLE_TO_MAP(E0753),
-TABLE_TO_MAP(E0754),
-TABLE_TO_MAP(E0755),
-TABLE_TO_MAP(E0756),
-TABLE_TO_MAP(E0757),
-TABLE_TO_MAP(E0758),
-TABLE_TO_MAP(E0759),
-TABLE_TO_MAP(E0760),
-TABLE_TO_MAP(E0761),
-TABLE_TO_MAP(E0762),
-TABLE_TO_MAP(E0763),
-TABLE_TO_MAP(E0764),
-TABLE_TO_MAP(E0765),
-TABLE_TO_MAP(E0766),
-TABLE_TO_MAP(E0767),
-TABLE_TO_MAP(E0768),
-TABLE_TO_MAP(E0769),
-TABLE_TO_MAP(E0770),
-TABLE_TO_MAP(E0771),
-TABLE_TO_MAP(E0772),
-TABLE_TO_MAP(E0773),
-TABLE_TO_MAP(E0774),
-TABLE_TO_MAP(E0775),
-TABLE_TO_MAP(E0776),
-TABLE_TO_MAP(E0777),
-TABLE_TO_MAP(E0778),
-TABLE_TO_MAP(E0779),
-TABLE_TO_MAP(E0780),
-TABLE_TO_MAP(E0781),
-TABLE_TO_MAP(E0782),
-TABLE_TO_MAP(E0783),
-TABLE_TO_MAP(E0784),
-TABLE_TO_MAP(E0785),
-TABLE_TO_MAP(E0786),
-TABLE_TO_MAP(E0787),
-TABLE_TO_MAP(E0788),
-TABLE_TO_MAP(E0789),
-TABLE_TO_MAP(E0790),
-TABLE_TO_MAP(E0791),
-TABLE_TO_MAP(E0792),
-TABLE_TO_MAP(E0793),
-TABLE_TO_MAP(E0794),
+// We want E0005 to be mapped to the value `5` - this way, we can easily format
+// it in `make_description`. We also want to keep the value "5" only once when
+// defining the error code in rust_error_codes.def, so not have ERROR(E0005, 5)
+// as that is error prone. If we just use `0005` as the discriminant for the
+// `E0005` enum variant, then we are actually creating octal values (!) as `0`
+// is the C/C++ octal prefix. So this does not work for `E0009` for example,
+// since 0009 is not a valid octal literal.
+// We can circumvent this by doing a little bit of constant folding in the
+// discriminant expression. So for ERROR(E0009), this macro expands to the
+// following variant:
+//
+// E0009 = (10009 - 10000)
+//
+// which gets folded to the result of the substraction... 9. A valid decimal
+// literal which corresponds to E0009.
+#define ERROR(N) E##N = (1##N - 10000)
+enum class ErrorCode : unsigned int
+{
+#include "rust_error_codes.def"
 };
+#undef ERROR
 
+// clang-format off
 extern void
 rust_internal_error_at (const location_t, const char *fmt, ...)
   RUST_ATTRIBUTE_GCC_DIAG (2, 3)