Mercurial > projects > ldc
annotate dmd2/lexer.h @ 919:c76f74d09fb1
Fixed assertion failure when object.d is missing the ModuleInfo class
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
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date | Mon, 02 Feb 2009 02:35:44 +0100 |
parents | f04dde6e882c |
children | 638d16625da2 |
rev | line source |
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1 |
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2 // Compiler implementation of the D programming language |
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3 // Copyright (c) 1999-2008 by Digital Mars |
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4 // All Rights Reserved |
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5 // written by Walter Bright |
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6 // http://www.digitalmars.com |
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7 // License for redistribution is by either the Artistic License |
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8 // in artistic.txt, or the GNU General Public License in gnu.txt. |
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9 // See the included readme.txt for details. |
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10 |
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11 #ifndef DMD_LEXER_H |
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12 #define DMD_LEXER_H |
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13 |
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14 #ifdef __DMC__ |
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15 #pragma once |
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16 #endif /* __DMC__ */ |
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17 |
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18 #include "root.h" |
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19 #include "mars.h" |
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20 |
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21 struct StringTable; |
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22 struct Identifier; |
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23 struct Module; |
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24 |
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25 /* Tokens: |
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26 ( ) |
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27 [ ] |
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28 { } |
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29 < > <= >= == != === !== |
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30 << >> <<= >>= >>> >>>= |
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31 + - += -= |
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32 * / % *= /= %= |
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33 & | ^ &= |= ^= |
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34 = ! ~ |
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35 ++ -- |
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36 . -> : , |
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37 ? && || |
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38 */ |
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39 |
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40 enum TOK |
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41 { |
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42 TOKreserved, |
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43 |
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44 // Other |
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45 TOKlparen, TOKrparen, |
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46 TOKlbracket, TOKrbracket, |
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47 TOKlcurly, TOKrcurly, |
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48 TOKcolon, TOKneg, |
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49 TOKsemicolon, TOKdotdotdot, |
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50 TOKeof, TOKcast, |
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51 TOKnull, TOKassert, |
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52 TOKtrue, TOKfalse, |
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53 TOKarray, TOKcall, |
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54 TOKaddress, TOKtypedot, |
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55 TOKtype, TOKthrow, |
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56 TOKnew, TOKdelete, |
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57 TOKstar, TOKsymoff, |
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58 TOKvar, TOKdotvar, |
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59 TOKdotti, TOKdotexp, |
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60 TOKdottype, TOKslice, |
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61 TOKarraylength, TOKversion, |
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62 TOKmodule, TOKdollar, |
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63 TOKtemplate, TOKdottd, |
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64 TOKdeclaration, TOKtypeof, |
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65 TOKpragma, TOKdsymbol, |
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66 TOKtypeid, TOKuadd, |
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67 TOKremove, |
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68 TOKnewanonclass, TOKcomment, |
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69 TOKarrayliteral, TOKassocarrayliteral, |
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70 TOKstructliteral, |
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71 |
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72 // Operators |
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73 TOKlt, TOKgt, |
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74 TOKle, TOKge, |
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75 TOKequal, TOKnotequal, |
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76 TOKidentity, TOKnotidentity, |
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77 TOKindex, TOKis, |
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78 TOKtobool, |
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79 |
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80 // 60 |
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81 // NCEG floating point compares |
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82 // !<>= <> <>= !> !>= !< !<= !<> |
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83 TOKunord,TOKlg,TOKleg,TOKule,TOKul,TOKuge,TOKug,TOKue, |
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84 |
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85 TOKshl, TOKshr, |
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86 TOKshlass, TOKshrass, |
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87 TOKushr, TOKushrass, |
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88 TOKcat, TOKcatass, // ~ ~= |
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89 TOKadd, TOKmin, TOKaddass, TOKminass, |
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90 TOKmul, TOKdiv, TOKmod, |
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91 TOKmulass, TOKdivass, TOKmodass, |
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92 TOKand, TOKor, TOKxor, |
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93 TOKandass, TOKorass, TOKxorass, |
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94 TOKassign, TOKnot, TOKtilde, |
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95 TOKplusplus, TOKminusminus, TOKconstruct, TOKblit, |
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96 TOKdot, TOKarrow, TOKcomma, |
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97 TOKquestion, TOKandand, TOKoror, |
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98 |
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99 // 104 |
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100 // Numeric literals |
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101 TOKint32v, TOKuns32v, |
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102 TOKint64v, TOKuns64v, |
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103 TOKfloat32v, TOKfloat64v, TOKfloat80v, |
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104 TOKimaginary32v, TOKimaginary64v, TOKimaginary80v, |
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105 |
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106 // Char constants |
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107 TOKcharv, TOKwcharv, TOKdcharv, |
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108 |
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109 // Leaf operators |
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110 TOKidentifier, TOKstring, |
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111 TOKthis, TOKsuper, |
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112 TOKhalt, TOKtuple, |
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113 |
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114 // Basic types |
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115 TOKvoid, |
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116 TOKint8, TOKuns8, |
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117 TOKint16, TOKuns16, |
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118 TOKint32, TOKuns32, |
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119 TOKint64, TOKuns64, |
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120 TOKfloat32, TOKfloat64, TOKfloat80, |
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121 TOKimaginary32, TOKimaginary64, TOKimaginary80, |
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122 TOKcomplex32, TOKcomplex64, TOKcomplex80, |
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123 TOKchar, TOKwchar, TOKdchar, TOKbit, TOKbool, |
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124 TOKcent, TOKucent, |
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125 |
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126 // Aggregates |
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127 TOKstruct, TOKclass, TOKinterface, TOKunion, TOKenum, TOKimport, |
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128 TOKtypedef, TOKalias, TOKoverride, TOKdelegate, TOKfunction, |
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129 TOKmixin, |
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130 |
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131 TOKalign, TOKextern, TOKprivate, TOKprotected, TOKpublic, TOKexport, |
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132 TOKstatic, /*TOKvirtual,*/ TOKfinal, TOKconst, TOKabstract, TOKvolatile, |
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133 TOKdebug, TOKdeprecated, TOKin, TOKout, TOKinout, TOKlazy, |
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134 TOKauto, TOKpackage, TOKmanifest, TOKimmutable, |
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135 |
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136 // Statements |
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137 TOKif, TOKelse, TOKwhile, TOKfor, TOKdo, TOKswitch, |
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138 TOKcase, TOKdefault, TOKbreak, TOKcontinue, TOKwith, |
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139 TOKsynchronized, TOKreturn, TOKgoto, TOKtry, TOKcatch, TOKfinally, |
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140 TOKasm, TOKforeach, TOKforeach_reverse, |
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141 TOKscope, |
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142 TOKon_scope_exit, TOKon_scope_failure, TOKon_scope_success, |
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143 |
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144 // Contracts |
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145 TOKbody, TOKinvariant, |
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146 |
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147 // Testing |
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148 TOKunittest, |
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149 |
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150 // Added after 1.0 |
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151 TOKref, |
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152 TOKmacro, |
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153 #if DMDV2 |
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154 TOKtraits, |
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155 TOKoverloadset, |
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156 TOKpure, |
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157 TOKnothrow, |
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158 TOKtls, |
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159 TOKline, |
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160 TOKfile, |
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161 TOKshared, |
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162 #endif |
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163 |
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164 // LDC specific |
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165 #if IN_LLVM |
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166 TOKgep, |
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167 #endif |
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168 |
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169 TOKMAX |
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170 }; |
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171 |
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172 #define CASE_BASIC_TYPES \ |
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173 case TOKwchar: case TOKdchar: \ |
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174 case TOKbit: case TOKbool: case TOKchar: \ |
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175 case TOKint8: case TOKuns8: \ |
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176 case TOKint16: case TOKuns16: \ |
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177 case TOKint32: case TOKuns32: \ |
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178 case TOKint64: case TOKuns64: \ |
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179 case TOKfloat32: case TOKfloat64: case TOKfloat80: \ |
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180 case TOKimaginary32: case TOKimaginary64: case TOKimaginary80: \ |
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181 case TOKcomplex32: case TOKcomplex64: case TOKcomplex80: \ |
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182 case TOKvoid |
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183 |
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|
184 #define CASE_BASIC_TYPES_X(t) \ |
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185 case TOKvoid: t = Type::tvoid; goto LabelX; \ |
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186 case TOKint8: t = Type::tint8; goto LabelX; \ |
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187 case TOKuns8: t = Type::tuns8; goto LabelX; \ |
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188 case TOKint16: t = Type::tint16; goto LabelX; \ |
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189 case TOKuns16: t = Type::tuns16; goto LabelX; \ |
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190 case TOKint32: t = Type::tint32; goto LabelX; \ |
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191 case TOKuns32: t = Type::tuns32; goto LabelX; \ |
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192 case TOKint64: t = Type::tint64; goto LabelX; \ |
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193 case TOKuns64: t = Type::tuns64; goto LabelX; \ |
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194 case TOKfloat32: t = Type::tfloat32; goto LabelX; \ |
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195 case TOKfloat64: t = Type::tfloat64; goto LabelX; \ |
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196 case TOKfloat80: t = Type::tfloat80; goto LabelX; \ |
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197 case TOKimaginary32: t = Type::timaginary32; goto LabelX; \ |
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198 case TOKimaginary64: t = Type::timaginary64; goto LabelX; \ |
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199 case TOKimaginary80: t = Type::timaginary80; goto LabelX; \ |
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200 case TOKcomplex32: t = Type::tcomplex32; goto LabelX; \ |
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201 case TOKcomplex64: t = Type::tcomplex64; goto LabelX; \ |
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202 case TOKcomplex80: t = Type::tcomplex80; goto LabelX; \ |
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203 case TOKbit: t = Type::tbit; goto LabelX; \ |
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204 case TOKbool: t = Type::tbool; goto LabelX; \ |
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205 case TOKchar: t = Type::tchar; goto LabelX; \ |
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206 case TOKwchar: t = Type::twchar; goto LabelX; \ |
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207 case TOKdchar: t = Type::tdchar; goto LabelX; \ |
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208 LabelX |
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209 |
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210 struct Token |
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211 { |
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212 Token *next; |
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213 unsigned char *ptr; // pointer to first character of this token within buffer |
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214 enum TOK value; |
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215 unsigned char *blockComment; // doc comment string prior to this token |
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216 unsigned char *lineComment; // doc comment for previous token |
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217 union |
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218 { |
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219 // Integers |
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220 d_int32 int32value; |
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221 d_uns32 uns32value; |
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222 d_int64 int64value; |
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223 d_uns64 uns64value; |
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224 |
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225 // Floats |
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226 #ifdef IN_GCC |
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227 // real_t float80value; // can't use this in a union! |
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228 #else |
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229 d_float80 float80value; |
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230 #endif |
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231 |
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232 struct |
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233 { unsigned char *ustring; // UTF8 string |
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234 unsigned len; |
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235 unsigned char postfix; // 'c', 'w', 'd' |
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236 }; |
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237 |
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238 Identifier *ident; |
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239 }; |
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240 #ifdef IN_GCC |
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241 real_t float80value; // can't use this in a union! |
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242 #endif |
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243 |
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244 static const char *tochars[TOKMAX]; |
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245 static void *operator new(size_t sz); |
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246 |
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247 int isKeyword(); |
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248 void print(); |
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249 const char *toChars(); |
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250 static const char *toChars(enum TOK); |
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251 }; |
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252 |
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253 struct Lexer |
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254 { |
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255 static StringTable stringtable; |
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256 static OutBuffer stringbuffer; |
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257 static Token *freelist; |
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258 |
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259 Loc loc; // for error messages |
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260 |
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261 unsigned char *base; // pointer to start of buffer |
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262 unsigned char *end; // past end of buffer |
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263 unsigned char *p; // current character |
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264 Token token; |
f04dde6e882c
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265 Module *mod; |
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266 int doDocComment; // collect doc comment information |
f04dde6e882c
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267 int anyToken; // !=0 means seen at least one token |
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268 int commentToken; // !=0 means comments are TOKcomment's |
f04dde6e882c
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269 |
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270 Lexer(Module *mod, |
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271 unsigned char *base, unsigned begoffset, unsigned endoffset, |
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272 int doDocComment, int commentToken); |
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273 |
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274 static void initKeywords(); |
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275 static Identifier *idPool(const char *s); |
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276 static Identifier *uniqueId(const char *s); |
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277 static Identifier *uniqueId(const char *s, int num); |
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278 |
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279 TOK nextToken(); |
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280 TOK peekNext(); |
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281 void scan(Token *t); |
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282 Token *peek(Token *t); |
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283 Token *peekPastParen(Token *t); |
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284 unsigned escapeSequence(); |
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285 TOK wysiwygStringConstant(Token *t, int tc); |
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286 TOK hexStringConstant(Token *t); |
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287 #if DMDV2 |
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288 TOK delimitedStringConstant(Token *t); |
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289 TOK tokenStringConstant(Token *t); |
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290 #endif |
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291 TOK escapeStringConstant(Token *t, int wide); |
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292 TOK charConstant(Token *t, int wide); |
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293 void stringPostfix(Token *t); |
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294 unsigned wchar(unsigned u); |
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295 TOK number(Token *t); |
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296 TOK inreal(Token *t); |
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297 void error(const char *format, ...); |
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298 void error(Loc loc, const char *format, ...); |
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299 void pragma(); |
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300 unsigned decodeUTF(); |
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301 void getDocComment(Token *t, unsigned lineComment); |
f04dde6e882c
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302 |
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303 static int isValidIdentifier(char *p); |
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304 static unsigned char *combineComments(unsigned char *c1, unsigned char *c2); |
f04dde6e882c
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305 }; |
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306 |
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|
307 #endif /* DMD_LEXER_H */ |