Mercurial > projects > dil
annotate trunk/src/dil/ast/Node.d @ 618:07946b379006
Refactored the way dot expressions are parsed.
DotExpression is a binary expression now.
Added ModuleScopeExpression.
Removed some obsolete expression classes.
Added QualifiedType and ModuleScopeType.
Removed some obsolete type node classes.
Added genAnonymousID() to IdTable.
Removed obsolete parser functions.
Improved Node.getDocComments().
Added semantic() methods to some declaration classes.
author | Aziz K?ksal <aziz.koeksal@gmail.com> |
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date | Fri, 11 Jan 2008 00:42:35 +0100 |
parents | 7034d3f9e40c |
children | b2fc028d8b55 |
rev | line source |
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142 | 1 /++ |
2 Author: Aziz Köksal | |
249 | 3 License: GPL3 |
142 | 4 +/ |
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Moved SyntaxTree.d to new package 'ast'.
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5 module dil.ast.Node; |
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Moved dil.Token to dil.lexer.Token.
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6 |
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7 import common; |
142 | 8 |
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9 public import dil.lexer.Token; |
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10 |
275 | 11 enum NodeCategory |
142 | 12 { |
13 Declaration, | |
14 Statement, | |
15 Expression, | |
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16 Type, |
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17 Other |
142 | 18 } |
19 | |
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20 enum NodeKind |
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21 { |
278 | 22 // Declarations: |
305 | 23 Declarations, |
278 | 24 EmptyDeclaration, |
25 IllegalDeclaration, | |
26 ModuleDeclaration, | |
27 ImportDeclaration, | |
28 AliasDeclaration, | |
29 TypedefDeclaration, | |
30 EnumDeclaration, | |
31 ClassDeclaration, | |
32 InterfaceDeclaration, | |
33 StructDeclaration, | |
34 UnionDeclaration, | |
35 ConstructorDeclaration, | |
36 StaticConstructorDeclaration, | |
37 DestructorDeclaration, | |
38 StaticDestructorDeclaration, | |
39 FunctionDeclaration, | |
40 VariableDeclaration, | |
41 InvariantDeclaration, | |
42 UnittestDeclaration, | |
43 DebugDeclaration, | |
44 VersionDeclaration, | |
45 StaticIfDeclaration, | |
46 StaticAssertDeclaration, | |
47 TemplateDeclaration, | |
48 NewDeclaration, | |
49 DeleteDeclaration, | |
50 AttributeDeclaration, | |
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51 ProtectionDeclaration, |
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52 StorageClassDeclaration, |
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53 LinkageDeclaration, |
278 | 54 AlignDeclaration, |
55 PragmaDeclaration, | |
56 MixinDeclaration, | |
57 | |
58 // Statements: | |
59 Statements, | |
60 IllegalStatement, | |
61 EmptyStatement, | |
62 ScopeStatement, | |
63 LabeledStatement, | |
64 ExpressionStatement, | |
65 DeclarationStatement, | |
66 IfStatement, | |
67 ConditionalStatement, | |
68 WhileStatement, | |
69 DoWhileStatement, | |
70 ForStatement, | |
71 ForeachStatement, | |
72 ForeachRangeStatement, // D2.0 | |
73 SwitchStatement, | |
74 CaseStatement, | |
75 DefaultStatement, | |
76 ContinueStatement, | |
77 BreakStatement, | |
78 ReturnStatement, | |
79 GotoStatement, | |
80 WithStatement, | |
81 SynchronizedStatement, | |
82 TryStatement, | |
83 CatchBody, | |
84 FinallyBody, | |
85 ScopeGuardStatement, | |
86 ThrowStatement, | |
87 VolatileStatement, | |
88 AsmStatement, | |
285 | 89 AsmInstruction, |
374 | 90 AsmAlignStatement, |
285 | 91 IllegalAsmInstruction, |
278 | 92 PragmaStatement, |
93 MixinStatement, | |
94 StaticIfStatement, | |
95 StaticAssertStatement, | |
96 DebugStatement, | |
97 VersionStatement, | |
98 | |
277
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- Made classes Declaration, Expression and Statement abstract.
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99 // Expressions: |
276
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100 EmptyExpression, |
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101 BinaryExpression, |
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102 CondExpression, |
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103 CommaExpression, |
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104 OrOrExpression, |
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105 AndAndExpression, |
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106 OrExpression, |
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107 XorExpression, |
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108 AndExpression, |
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109 CmpExpression, |
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110 EqualExpression, |
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111 IdentityExpression, |
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112 RelExpression, |
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113 InExpression, |
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114 LShiftExpression, |
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115 RShiftExpression, |
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116 URShiftExpression, |
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117 PlusExpression, |
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118 MinusExpression, |
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119 CatExpression, |
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120 MulExpression, |
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121 DivExpression, |
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122 ModExpression, |
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123 AssignExpression, |
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124 LShiftAssignExpression, |
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125 RShiftAssignExpression, |
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126 URShiftAssignExpression, |
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127 OrAssignExpression, |
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128 AndAssignExpression, |
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129 PlusAssignExpression, |
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130 MinusAssignExpression, |
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131 DivAssignExpression, |
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132 MulAssignExpression, |
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133 ModAssignExpression, |
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134 XorAssignExpression, |
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135 CatAssignExpression, |
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136 UnaryExpression, |
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137 AddressExpression, |
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138 PreIncrExpression, |
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139 PreDecrExpression, |
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140 PostIncrExpression, |
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141 PostDecrExpression, |
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142 DerefExpression, |
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143 SignExpression, |
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144 NotExpression, |
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145 CompExpression, |
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146 CallExpression, |
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147 NewExpression, |
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148 NewAnonClassExpression, |
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149 DeleteExpression, |
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150 CastExpression, |
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151 IndexExpression, |
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152 SliceExpression, |
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153 ModuleScopeExpression, |
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154 IdentifierExpression, |
312 | 155 SpecialTokenExpression, |
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156 DotExpression, |
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157 TemplateInstanceExpression, |
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158 ThisExpression, |
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159 SuperExpression, |
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160 NullExpression, |
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161 DollarExpression, |
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162 BoolExpression, |
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163 IntExpression, |
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164 RealExpression, |
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Added ComplexExpression to enum NodeKind and setToks() to Node.
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165 ComplexExpression, |
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166 CharExpression, |
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167 StringExpression, |
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168 ArrayLiteralExpression, |
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169 AArrayLiteralExpression, |
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170 AssertExpression, |
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171 MixinExpression, |
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172 ImportExpression, |
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173 TypeofExpression, |
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174 TypeDotIdExpression, |
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175 TypeidExpression, |
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176 IsExpression, |
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177 FunctionLiteralExpression, |
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178 TraitsExpression, // D2.0 |
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179 VoidInitializer, |
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180 ArrayInitializer, |
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181 StructInitializer, |
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182 AsmTypeExpression, |
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183 AsmOffsetExpression, |
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184 AsmSegExpression, |
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185 AsmPostBracketExpression, |
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186 AsmBracketExpression, |
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187 AsmLocalSizeExpression, |
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188 AsmRegisterExpression, |
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189 |
281 | 190 // Types: |
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191 UndefinedType, |
281 | 192 IntegralType, |
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193 QualifiedType, |
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194 ModuleScopeType, |
281 | 195 IdentifierType, |
196 TypeofType, | |
197 TemplateInstanceType, | |
198 PointerType, | |
199 ArrayType, | |
200 FunctionType, | |
201 DelegateType, | |
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202 CFuncPointerType, |
281 | 203 ConstType, // D2.0 |
204 InvariantType, // D2.0 | |
205 | |
206 // Other: | |
278 | 207 FunctionBody, |
281 | 208 Parameter, |
209 Parameters, | |
210 BaseClass, | |
340
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211 TemplateAliasParameter, |
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212 TemplateTypeParameter, |
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213 TemplateThisParameter, // D2.0 |
340
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214 TemplateValueParameter, |
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215 TemplateTupleParameter, |
281 | 216 TemplateParameters, |
217 TemplateArguments, | |
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218 EnumMember, |
276
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219 } |
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220 |
281 | 221 /// This string is mixed into the constructor of a class that inherits from Node. |
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222 const string set_kind = `this.kind = mixin("NodeKind." ~ typeof(this).stringof);`; |
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223 |
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224 Class TryCast(Class)(Node n) |
309 | 225 { |
226 assert(n !is null); | |
227 if (n.kind == mixin("NodeKind." ~ typeof(Class).stringof)) | |
228 return cast(Class)cast(void*)n; | |
229 return null; | |
230 } | |
231 | |
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232 Class CastTo(Class)(Node n) |
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233 { |
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234 assert(n !is null && n.kind == mixin("NodeKind." ~ typeof(Class).stringof)); |
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235 return cast(Class)cast(void*)n; |
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236 } |
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237 |
142 | 238 class Node |
239 { | |
275 | 240 NodeCategory category; |
276
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241 NodeKind kind; |
292 | 242 Node[] children; |
189 | 243 Token* begin, end; |
244 | |
275 | 245 this(NodeCategory category) |
142 | 246 { |
275 | 247 this.category = category; |
142 | 248 } |
189 | 249 |
250 void setTokens(Token* begin, Token* end) | |
251 { | |
252 this.begin = begin; | |
253 this.end = end; | |
254 } | |
489
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255 |
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256 Class setToks(Class)(Class node) |
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257 { |
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258 node.setTokens(this.begin, this.end); |
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259 return node; |
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260 } |
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261 |
489
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262 void addChild(Node child) |
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263 { |
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264 assert(child !is null, "failed in " ~ this.classinfo.name); |
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265 this.children ~= child; |
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266 } |
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267 |
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268 void addOptChild(Node child) |
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269 { |
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270 child is null || addChild(child); |
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271 } |
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272 |
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273 void addChildren(Node[] children) |
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274 { |
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275 assert(children !is null && delegate{ |
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276 foreach (child; children) |
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277 if (child is null) |
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278 return false; |
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279 return true; }(), |
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280 "failed in " ~ this.classinfo.name |
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281 ); |
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282 this.children ~= children; |
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283 } |
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284 |
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285 void addOptChildren(Node[] children) |
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286 { |
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287 children is null || addChildren(children); |
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288 } |
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289 |
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290 static bool isDoxygenComment(Token* token) |
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291 { // Doxygen: '/+!' '/*!' '//!' |
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292 return token.type == TOK.Comment && token.start[2] == '!'; |
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293 } |
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294 |
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295 static bool isDDocComment(Token* token) |
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296 { // DDOC: '/++' '/**' '///' |
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297 return token.type == TOK.Comment && token.start[1] == token.start[2]; |
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298 } |
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299 |
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300 /++ |
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301 Returns the surrounding documentation comment tokens. |
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302 Note: this function works correctly only if |
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303 the source text is syntactically correct. |
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304 +/ |
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305 Token*[] getDocComments(bool function(Token*) isDocComment = &isDDocComment) |
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306 { |
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307 Token*[] comments; |
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308 // Get preceding comments. |
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309 auto token = begin; |
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310 // Scan backwards until we hit another declaration. |
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311 while (1) |
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312 { |
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313 token = token.prev; |
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314 if (token.type == TOK.LBrace || |
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315 token.type == TOK.RBrace || |
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316 token.type == TOK.Semicolon || |
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317 token.type == TOK.HEAD || |
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318 (kind == NodeKind.EnumMember && token.type == TOK.Comma)) |
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319 break; |
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320 |
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321 if (token.type == TOK.Comment) |
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322 { |
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323 // Check that this comment doesn't belong to the previous declaration. |
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324 if (kind == NodeKind.EnumMember && token.type == TOK.Comma) |
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325 break; |
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326 switch (token.prev.type) |
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327 { |
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328 case TOK.Semicolon, TOK.RBrace: |
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329 break; |
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330 default: |
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331 if (isDocComment(token)) |
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332 comments ~= token; |
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333 } |
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334 } |
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335 } |
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336 // Get single comment to the right. |
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337 token = end.next; |
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338 if (token.type == TOK.Comment && isDocComment(token)) |
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339 comments ~= token; |
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340 else if (kind == NodeKind.EnumMember) |
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341 { |
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342 token = end.nextNWS; |
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343 if (token.type == TOK.Comma) |
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344 { |
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345 token = token.next; |
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346 if (token.type == TOK.Comment && isDocComment(token)) |
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347 comments ~= token; |
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348 } |
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349 } |
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350 return comments; |
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351 } |
142 | 352 } |