annotate trunk/src/dil/Token.d @ 577:9e811db780a6

Moved LexerFuncs.d to package 'lexer'.
author Aziz K?ksal <aziz.koeksal@gmail.com>
date Sat, 05 Jan 2008 17:01:15 +0100
parents 3bc7801c207e
children
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1 /++
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2 Author: Aziz Köksal
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3 License: GPL3
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4 +/
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5 module dil.Token;
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6
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7 import dil.Location;
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8 import dil.Identifier;
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9 import dil.lexer.Funcs;
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10 import tango.stdc.stdlib : malloc, free;
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11 import tango.core.Exception;
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12 import common;
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13
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14 public import dil.TokensEnum;
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15
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16 /++
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17 A Token is a sequence of characters formed by the lexical analyzer.
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18 +/
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19 struct Token
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20 {
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21 enum Flags : ushort
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22 {
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23 None,
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24 Whitespace = 1, /// Tokens with this flag are ignored by the Parser.
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25 }
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27 TOK type; /// The type of the token.
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28 Flags flags; /// The flags of the token.
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29 /// Pointers to the next and previous tokens (doubly-linked list.)
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30 Token* next, prev;
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31
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32 char* ws; /// Start of whitespace characters before token. Null if no WS.
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33 char* start; /// Start of token in source text.
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34 char* end; /// Points one past the end of token in source text.
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35
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36 union
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37 {
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38 /// For newline tokens.
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39 struct
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40 {
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41 char[] filePath;
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42 uint lineNum;
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43 uint lineNum_hline;
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44 }
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45 /// For #line tokens.
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46 struct
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47 {
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48 Token* tokLineNum; /// #line number
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49 Token* tokLineFilespec; /// #line number filespec
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50 }
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51 /// For string tokens.
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52 struct
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53 {
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54 string str;
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55 char pf; /// Postfix 'c', 'w', 'd' or 0 for none.
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56 version(D2)
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57 Token* tok_str; /// Points to the contents of a token string stored as a
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58 /// doubly linked list. The last token is always '}' or
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59 /// EOF in case end of source text is "q{" EOF.
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60 }
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61 Identifier* ident;
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62 dchar dchar_;
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63 long long_;
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64 ulong ulong_;
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65 int int_;
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66 uint uint_;
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67 float float_;
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68 double double_;
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69 real real_;
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70 }
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71
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72 alias srcText identifier;
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73
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74 /// Returns the text of the token.
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75 string srcText()
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76 {
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77 assert(start && end);
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78 return start[0 .. end - start];
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79 }
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80
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81 /// Returns the preceding whitespace of the token.
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82 string wsChars()
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83 {
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84 assert(ws && start);
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85 return ws[0 .. start - ws];
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86 }
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87
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88 /// Find next non-whitespace token. Returns 'this' token if the next token is TOK.EOF or null.
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89 Token* nextNWS()
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90 out(token)
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91 {
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92 assert(token !is null);
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93 }
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94 body
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95 {
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96 auto token = next;
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97 while (token !is null && token.isWhitespace)
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98 token = token.next;
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99 if (token is null || token.type == TOK.EOF)
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100 return this;
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101 return token;
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102 }
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103
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104 /// Find previous non-whitespace token. Returns 'this' token if the previous token is TOK.HEAD or null.
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105 Token* prevNWS()
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106 out(token)
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107 {
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108 assert(token !is null);
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109 }
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110 body
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111 {
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112 auto token = prev;
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113 while (token !is null && token.isWhitespace)
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114 token = token.prev;
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115 if (token is null || token.type == TOK.HEAD)
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116 return this;
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117 return token;
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118 }
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119
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120 static string toString(TOK tok)
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121 {
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122 return tokToString[tok];
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123 }
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124
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125 /// Adds Flags.Whitespace to this token's flags.
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126 void setWhitespaceFlag()
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127 {
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128 this.flags |= Flags.Whitespace;
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129 }
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130
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131 /++
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132 Returns true if this is a token that can have newlines in it.
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133 These can be block and nested comments and any string literal
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134 except for escape string literals.
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135 +/
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136 bool isMultiline()
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137 {
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138 return type == TOK.String && start[0] != '\\' ||
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139 type == TOK.Comment && start[1] != '/';
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140 }
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141
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142 /// Returns true if this is a keyword token.
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143 bool isKeyword()
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144 {
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145 return KeywordsBegin <= type && type <= KeywordsEnd;
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146 }
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147
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148 /// Returns true if this is an integral type token.
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149 bool isIntegralType()
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150 {
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151 return IntegralTypeBegin <= type && type <= IntegralTypeEnd;
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152 }
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153
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154 /// Returns true if this is a whitespace token.
314
ebd21bbf296e - Added Whitespace, Sheband and Hashline to enum TOK. TOK.Whitespace is a flag and tokens that are considered whitespace are flagged as such.
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155 bool isWhitespace()
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diff changeset
156 {
552
3bc7801c207e Refactored the way how tokens are flagged as whitespace.
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diff changeset
157 return !!(flags & Flags.Whitespace);
314
ebd21bbf296e - Added Whitespace, Sheband and Hashline to enum TOK. TOK.Whitespace is a flag and tokens that are considered whitespace are flagged as such.
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158 }
ebd21bbf296e - Added Whitespace, Sheband and Hashline to enum TOK. TOK.Whitespace is a flag and tokens that are considered whitespace are flagged as such.
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159
485
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diff changeset
160 /// Returns true if this is a special token.
343
95f1b6e43214 - Removed TOK.Special and added an own entry for each special token.
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diff changeset
161 bool isSpecialToken()
95f1b6e43214 - Removed TOK.Special and added an own entry for each special token.
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parents: 326
diff changeset
162 {
496
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diff changeset
163 return SpecialTokensBegin <= type && type <= SpecialTokensEnd;
343
95f1b6e43214 - Removed TOK.Special and added an own entry for each special token.
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diff changeset
164 }
95f1b6e43214 - Removed TOK.Special and added an own entry for each special token.
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diff changeset
165
410
4d9ee8e60712 Added destructors for two particular tokens.
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parents: 391
diff changeset
166 version(D2)
4d9ee8e60712 Added destructors for two particular tokens.
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parents: 391
diff changeset
167 {
485
ea8c7459f1c4 Changed a lot of things in the Lexer.
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diff changeset
168 /// Returns true if this is a token string literal.
410
4d9ee8e60712 Added destructors for two particular tokens.
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diff changeset
169 bool isTokenStringLiteral()
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diff changeset
170 {
4d9ee8e60712 Added destructors for two particular tokens.
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diff changeset
171 return type == TOK.String && tok_str !is null;
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172 }
4d9ee8e60712 Added destructors for two particular tokens.
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parents: 391
diff changeset
173 }
4d9ee8e60712 Added destructors for two particular tokens.
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parents: 391
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174
496
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175 /// Returns true if this token starts a DeclarationDefinition.
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diff changeset
176 bool isDeclDefStart()
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diff changeset
177 {
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178 return isDeclDefStartToken(type);
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179 }
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diff changeset
180
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diff changeset
181 /// Returns true if this token starts a Statement.
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diff changeset
182 bool isStatementStart()
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183 {
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184 return isStatementStartToken(type);
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185 }
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diff changeset
186
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187 /// Returns true if this token starts an AsmInstruction.
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188 bool isAsmInstructionStart()
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diff changeset
189 {
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190 return isAsmInstructionStartToken(type);
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191 }
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parents: 490
diff changeset
192
163
f27a98bb17c7 - Fix: when parsing Declarator fails, type and ident is set to null.
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parents: 131
diff changeset
193 int opEquals(TOK type2)
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194 {
f27a98bb17c7 - Fix: when parsing Declarator fails, type and ident is set to null.
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parents: 131
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195 return type == type2;
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aziz
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196 }
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
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diff changeset
197
490
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198 /// Returns the Location of this token.
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diff changeset
199 Location getLocation()
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
200 {
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
201 auto search_t = this.prev;
47be6bfe39cd Refactored code and added new modules.
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parents: 487
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202 // Find previous newline token.
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
203 while (search_t.type != TOK.Newline)
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
204 search_t = search_t.prev;
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
205 auto filePath = search_t.filePath;
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
206 auto lineNum = search_t.lineNum - search_t.lineNum_hline;
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
207 auto lineBegin = search_t.end;
47be6bfe39cd Refactored code and added new modules.
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diff changeset
208 // Determine actual line begin and line number.
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
209 while (1)
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
210 {
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
211 search_t = search_t.next;
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
212 if (search_t == this)
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
213 break;
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
214 // Multiline tokens must be rescanned for newlines.
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
215 if (search_t.isMultiline)
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
216 {
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
217 auto p = search_t.start, end = search_t.end;
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
218 while (p != end)
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
219 {
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
220 if (scanNewline(p) == '\n')
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
221 {
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
222 lineBegin = p;
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
223 ++lineNum;
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
224 }
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
225 else
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
226 ++p;
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
227 }
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
228 }
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
229 }
47be6bfe39cd Refactored code and added new modules.
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parents: 487
diff changeset
230 return new Location(filePath, lineNum, lineBegin, this.start);
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
231 }
47be6bfe39cd Refactored code and added new modules.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 487
diff changeset
232
496
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
233 uint lineCount()
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
234 {
5a607597dc22 Improved error recovery in the Parser.
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diff changeset
235 uint count = 1;
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
236 if (this.isMultiline)
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
237 {
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
238 auto p = this.start, end = this.end;
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
239 while (p != end)
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
240 {
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
241 if (scanNewline(p) == '\n')
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
242 ++count;
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
243 else
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
244 ++p;
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
245 }
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
246 }
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
247 return count;
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
248 }
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
249
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
250 /// Return the source text enclosed by the left and right token.
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Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
251 static char[] textSpan(Token* left, Token* right)
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
252 {
497
0ffcc4ff82f3 Refactored a few things in the Lexer.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 496
diff changeset
253 assert(left.end <= right.start || left is right );
496
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
254 return left.start[0 .. right.end - left.start];
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parents: 490
diff changeset
255 }
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
256
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
257 new(size_t size)
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
258 {
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
259 void* p = malloc(size);
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
260 if (p is null)
391
33b566df6af4 Migrated project to Tango.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 390
diff changeset
261 throw new OutOfMemoryException(__FILE__, __LINE__);
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
262 *cast(Token*)p = Token.init;
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
263 return p;
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
264 }
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
265
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
266 delete(void* p)
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
267 {
410
4d9ee8e60712 Added destructors for two particular tokens.
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parents: 391
diff changeset
268 auto token = cast(Token*)p;
4d9ee8e60712 Added destructors for two particular tokens.
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parents: 391
diff changeset
269 if (token)
4d9ee8e60712 Added destructors for two particular tokens.
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parents: 391
diff changeset
270 {
4d9ee8e60712 Added destructors for two particular tokens.
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parents: 391
diff changeset
271 if(token.type == TOK.HashLine)
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
272 token.destructHashLineToken();
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
273 else
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
274 {
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
275 version(D2)
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
276 if (token.isTokenStringLiteral)
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
277 token.destructTokenStringLiteral();
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
278 }
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
279 }
239
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
280 free(p);
7911f6a92e6e - Added 'new' and 'delete' declarations to Token and uncommented next and prev members. Added HEAD to TOK.
aziz
parents: 210
diff changeset
281 }
410
4d9ee8e60712 Added destructors for two particular tokens.
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parents: 391
diff changeset
282
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
283 void destructHashLineToken()
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
284 {
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
285 assert(type == TOK.HashLine);
485
ea8c7459f1c4 Changed a lot of things in the Lexer.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 414
diff changeset
286 delete tokLineNum;
ea8c7459f1c4 Changed a lot of things in the Lexer.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 414
diff changeset
287 delete tokLineFilespec;
410
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
288 }
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
289
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
290 version(D2)
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
291 {
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
292 void destructTokenStringLiteral()
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
293 {
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
294 assert(type == TOK.String);
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
295 assert(start && *start == 'q' && start[1] == '{');
4d9ee8e60712 Added destructors for two particular tokens.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 391
diff changeset
296 assert(tok_str !is null);
4d9ee8e60712 Added destructors for two particular tokens.
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parents: 391
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297 auto tok_it = tok_str;
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298 auto tok_del = tok_str;
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299 while (tok_it && tok_it.type != TOK.EOF)
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300 {
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301 tok_it = tok_it.next;
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302 assert(tok_del && tok_del.type != TOK.EOF);
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303 delete tok_del;
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304 tok_del = tok_it;
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305 }
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306 }
4d9ee8e60712 Added destructors for two particular tokens.
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307 }
208
0a9bccf74046 - Added string table and toString() method to Token.
aziz
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308 }
0a9bccf74046 - Added string table and toString() method to Token.
aziz
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309
487
bccca748d745 Added 'tokenize' command.
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310 /++
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311 Not used at the moment. Could be useful if more
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diff changeset
312 info is needed about the location of nodes/tokens.
bccca748d745 Added 'tokenize' command.
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313 +/
bccca748d745 Added 'tokenize' command.
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314 struct NewlineInfo
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315 {
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316 char[] oriPath; /// Original path to the source text.
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317 char[] setPath; /// Path set by #line.
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318 uint oriLineNum; /// Actual line number in the source text.
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319 uint setLineNum; /// Delta line number set by #line.
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320 }
bccca748d745 Added 'tokenize' command.
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321
496
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322 /// Returns true if this token starts a DeclarationDefinition.
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323 bool isDeclDefStartToken(TOK tok)
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324 {
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325 switch (tok)
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326 {
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327 alias TOK T;
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diff changeset
328 case T.Align, T.Pragma, T.Export, T.Private, T.Package, T.Protected,
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
329 T.Public, T.Extern, T.Deprecated, T.Override, T.Abstract,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
330 T.Synchronized, T.Static, T.Final, T.Const, T.Invariant/*D 2.0*/,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
331 T.Auto, T.Scope, T.Alias, T.Typedef, T.Import, T.Enum, T.Class,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
332 T.Interface, T.Struct, T.Union, T.This, T.Tilde, T.Unittest, T.Debug,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
333 T.Version, T.Template, T.New, T.Delete, T.Mixin, T.Semicolon,
508
943ecc9c133a Added isIntegralType() to Token and refactored code.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 507
diff changeset
334 T.Identifier, T.Dot, T.Typeof:
496
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335 return true;
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diff changeset
336 default:
508
943ecc9c133a Added isIntegralType() to Token and refactored code.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 507
diff changeset
337 if (IntegralTypeBegin <= tok && tok <= IntegralTypeEnd)
943ecc9c133a Added isIntegralType() to Token and refactored code.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 507
diff changeset
338 return true;
496
5a607597dc22 Improved error recovery in the Parser.
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diff changeset
339 }
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340 return false;
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diff changeset
341 }
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diff changeset
342
5a607597dc22 Improved error recovery in the Parser.
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343 /// Returns true if this token starts a Statement.
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diff changeset
344 bool isStatementStartToken(TOK tok)
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345 {
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diff changeset
346 switch (tok)
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diff changeset
347 {
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diff changeset
348 alias TOK T;
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Aziz K?ksal <aziz.koeksal@gmail.com>
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diff changeset
349 case T.Align, T.Extern, T.Final, T.Const, T.Auto, T.Identifier, T.Dot,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
350 T.Typeof, T.If, T.While, T.Do, T.For, T.Foreach, T.Foreach_reverse,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
351 T.Switch, T.Case, T.Default, T.Continue, T.Break, T.Return, T.Goto,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
352 T.With, T.Synchronized, T.Try, T.Throw, T.Scope, T.Volatile, T.Asm,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
353 T.Pragma, T.Mixin, T.Static, T.Debug, T.Version, T.Alias, T.Semicolon,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
354 T.Enum, T.Class, T.Interface, T.Struct, T.Union, T.LBrace, T.Typedef,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
355 T.This, T.Super, T.Null, T.True, T.False, T.Int32, T.Int64, T.Uint32,
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
356 T.Uint64, T.Float32, T.Float64, T.Float80, T.Imaginary32,
507
996041463028 Removed TOK.WCharLiteral and TOK.DCharLiteral.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 502
diff changeset
357 T.Imaginary64, T.Imaginary80, T.CharLiteral, T.String, T.LBracket,
996041463028 Removed TOK.WCharLiteral and TOK.DCharLiteral.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 502
diff changeset
358 T.Function, T.Delegate, T.Assert, T.Import, T.Typeid, T.Is, T.LParen,
996041463028 Removed TOK.WCharLiteral and TOK.DCharLiteral.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 502
diff changeset
359 T.Traits/*D2.0*/, T.AndBinary, T.PlusPlus, T.MinusMinus, T.Mul,
996041463028 Removed TOK.WCharLiteral and TOK.DCharLiteral.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 502
diff changeset
360 T.Minus, T.Plus, T.Not, T.Tilde, T.New, T.Delete, T.Cast:
496
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parents: 490
diff changeset
361 return true;
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
362 default:
508
943ecc9c133a Added isIntegralType() to Token and refactored code.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 507
diff changeset
363 if (IntegralTypeBegin <= tok && tok <= IntegralTypeEnd ||
943ecc9c133a Added isIntegralType() to Token and refactored code.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 507
diff changeset
364 SpecialTokensBegin <= tok && tok <= SpecialTokensEnd)
496
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
365 return true;
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
366 }
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
367 return false;
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
368 }
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
369
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
370 /// Returns true if this token starts an AsmInstruction.
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
371 bool isAsmInstructionStartToken(TOK tok)
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
372 {
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
373 switch(tok)
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
374 {
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
375 alias TOK T;
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
376 case T.In, T.Int, T.Out, T.Identifier, T.Align, T.Semicolon:
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
377 return true;
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
378 default:
5a607597dc22 Improved error recovery in the Parser.
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diff changeset
379 }
5a607597dc22 Improved error recovery in the Parser.
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parents: 490
diff changeset
380 return false;
5a607597dc22 Improved error recovery in the Parser.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 490
diff changeset
381 }