Mercurial > projects > orange
annotate orange/serialization/archives/XMLArchive.d @ 18:3d42ea434d46
Added an error callback. Fixes #3 and #4.
| author | Jacob Carlborg <doob@me.com> |
|---|---|
| date | Thu, 12 Aug 2010 23:24:51 +0200 |
| parents | 27c5b6c5425f |
| children | 8ab9588b92bf 9a575087b961 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Copyright: Copyright (c) 2010 Jacob Carlborg. | |
| 3 * Authors: Jacob Carlborg | |
| 4 * Version: Initial created: Jan 26, 2010 | |
| 5 * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0) | |
| 6 */ | |
| 7 module orange.serialization.archives.XMLArchive; | |
| 8 | |
| 9 version (Tango) | |
| 10 import tango.util.Convert : to; | |
| 11 | |
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12 else |
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13 import std.conv; |
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14 |
| 0 | 15 import orange.serialization.archives._; |
| 16 import orange.util._; | |
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17 import orange.xml.XMLDocument; |
| 0 | 18 |
| 19 private enum ArchiveMode | |
| 20 { | |
| 21 archiving, | |
| 22 unarchiving | |
| 23 } | |
| 24 | |
| 25 class XMLArchive (U = char) : Archive!(U) | |
| 26 { | |
| 27 static assert (isChar!(U), format!(`The given type "`, U, `" is not a valid type. Valid types are: "char", "wchar" and "dchar".`)); | |
| 28 | |
| 29 private struct Tags | |
| 30 { | |
| 31 static const DataType structTag = "struct"; | |
| 32 static const DataType dataTag = "data"; | |
| 33 static const DataType archiveTag = "archive"; | |
| 34 static const DataType arrayTag = "array"; | |
| 35 static const DataType objectTag = "object"; | |
| 36 static const DataType baseTag = "base"; | |
| 37 static const DataType stringTag = "string"; | |
| 38 static const DataType referenceTag = "reference"; | |
| 39 static const DataType pointerTag = "pointer"; | |
| 40 static const DataType associativeArrayTag = "associativeArray"; | |
| 41 static const DataType typedefTag = "typedef"; | |
| 42 static const DataType nullTag = "null"; | |
| 43 static const DataType enumTag = "enum"; | |
| 44 } | |
| 45 | |
| 46 private struct Attributes | |
| 47 { | |
| 48 static const DataType typeAttribute = "type"; | |
| 49 static const DataType versionAttribute = "version"; | |
| 50 static const DataType lengthAttribute = "length"; | |
| 51 static const DataType keyAttribute = "key"; | |
| 52 static const DataType runtimeTypeAttribute = "runtimeType"; | |
| 53 static const DataType idAttribute = "id"; | |
| 54 static const DataType keyTypeAttribute = "keyType"; | |
| 55 static const DataType valueTypeAttribute = "valueType"; | |
| 56 } | |
| 57 | |
| 58 private | |
| 59 { | |
| 60 DataType archiveType = "org.dsource.orange.xml"; | |
| 61 DataType archiveVersion = "0.1"; | |
| 62 | |
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63 XMLDocument!(U) doc; |
| 0 | 64 doc.Node lastElement; |
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65 //DocPrinter!(U) printer; |
| 0 | 66 doc.Node lastElementSaved; |
| 67 | |
| 68 bool hasBegunArchiving; | |
| 69 bool hasBegunUnarchiving; | |
| 70 | |
| 71 DataType[void*] archivedReferences; | |
| 72 void*[DataType] unarchivedReferences; | |
| 73 | |
| 74 size_t idCounter; | |
| 75 } | |
| 76 | |
| 77 this () | |
| 78 { | |
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79 doc = new XMLDocument!(U); |
| 0 | 80 } |
| 81 | |
| 82 public void beginArchiving () | |
| 83 { | |
| 84 if (!hasBegunArchiving) | |
| 85 { | |
| 86 doc.header; | |
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87 lastElement = doc.tree.element(Tags.archiveTag) |
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88 .attribute(Attributes.typeAttribute, archiveType) |
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89 .attribute(Attributes.versionAttribute, archiveVersion); |
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90 lastElement = lastElement.element(Tags.dataTag); |
| 0 | 91 |
| 92 hasBegunArchiving = true; | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 public void beginUnarchiving (DataType data) | |
| 97 { | |
| 98 if (!hasBegunUnarchiving) | |
| 99 { | |
| 100 doc.parse(data); | |
| 101 hasBegunUnarchiving = true; | |
| 102 | |
| 103 auto set = doc.query[Tags.archiveTag][Tags.dataTag]; | |
| 104 | |
| 105 if (set.nodes.length == 1) | |
| 106 lastElement = set.nodes[0]; | |
| 107 | |
| 108 else | |
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109 { |
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110 if (errorCallback) |
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111 { |
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112 if (set.nodes.length == 0) |
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113 errorCallback(new ArchiveException(errorMessage!(ArchiveMode.unarchiving) ~ `The "` ~ to!(string)(Tags.dataTag) ~ `" tag could not be found.`, __FILE__, __LINE__), [Tags.dataTag]); |
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114 |
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115 else |
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116 errorCallback(new ArchiveException(errorMessage!(ArchiveMode.unarchiving) ~ `There were more than one "` ~ to!(string)(Tags.dataTag) ~ `" tag.`, __FILE__, __LINE__), [Tags.dataTag]); |
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117 } |
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118 } |
| 0 | 119 } |
| 120 } | |
| 121 | |
| 122 public DataType data () | |
| 123 { | |
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124 /*if (!printer) |
| 0 | 125 printer = new DocPrinter!(U); |
| 126 | |
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127 return printer.print(doc);*/ |
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128 |
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129 return doc.toString(); |
| 0 | 130 } |
| 131 | |
| 132 public void reset () | |
| 133 { | |
| 134 hasBegunArchiving = false; | |
| 135 hasBegunUnarchiving = false; | |
| 136 idCounter = 0; | |
| 137 doc.reset; | |
| 138 } | |
| 139 | |
| 140 private void begin () | |
| 141 { | |
| 142 lastElementSaved = lastElement; | |
| 143 } | |
| 144 | |
| 145 private void end () | |
| 146 { | |
| 147 lastElement = lastElementSaved; | |
| 148 } | |
| 149 | |
| 150 public void archive (T) (T value, DataType key, void delegate () dg = null) | |
| 151 { | |
| 152 if (!hasBegunArchiving) | |
| 153 beginArchiving(); | |
| 154 | |
| 155 restore(lastElement) in { | |
| 156 bool callDelegate = true; | |
| 157 | |
| 158 static if (isTypeDef!(T)) | |
| 159 archiveTypeDef(value, key); | |
| 160 | |
| 161 else static if (isObject!(T)) | |
| 162 archiveObject(value, key, callDelegate); | |
| 163 | |
| 164 else static if (isStruct!(T)) | |
| 165 archiveStruct(value, key); | |
| 166 | |
| 167 else static if (isString!(T)) | |
| 168 archiveString(value, key); | |
| 169 | |
| 170 else static if (isArray!(T)) | |
| 171 archiveArray(value, key); | |
| 172 | |
| 173 else static if (isAssociativeArray!(T)) | |
| 174 archiveAssociativeArray(value, key); | |
| 175 | |
| 176 else static if (isPrimitive!(T)) | |
| 177 archivePrimitive(value, key); | |
| 178 | |
| 179 else static if (isPointer!(T)) | |
| 180 archivePointer(value, key, callDelegate); | |
| 181 | |
| 182 else static if (isEnum!(T)) | |
| 183 archiveEnum(value, key); | |
| 184 | |
| 185 else | |
| 186 static assert(false, format!(`The type "`, T, `" cannot be archived.`)); | |
| 187 | |
| 188 if (callDelegate && dg) | |
| 189 dg(); | |
| 190 }; | |
| 191 } | |
| 192 | |
| 193 private void archiveObject (T) (T value, DataType key, ref bool callDelegate) | |
| 194 { | |
| 195 if (!value) | |
| 196 { | |
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197 lastElement.element(Tags.nullTag) |
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198 .attribute(Attributes.typeAttribute, toDataType(T.stringof)) |
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199 .attribute(Attributes.keyAttribute, key); |
| 0 | 200 callDelegate = false; |
| 201 } | |
| 202 | |
| 203 else if (auto reference = getArchivedReference(value)) | |
| 204 { | |
| 205 archiveReference(key, reference); | |
| 206 callDelegate = false; | |
| 207 } | |
| 208 | |
| 209 else | |
| 210 { | |
| 211 DataType id = nextId; | |
| 212 | |
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213 lastElement = lastElement.element(Tags.objectTag) |
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214 .attribute(Attributes.runtimeTypeAttribute, toDataType(value.classinfo.name)) |
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215 .attribute(Attributes.typeAttribute, toDataType(T.stringof)) |
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216 .attribute(Attributes.keyAttribute, key) |
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217 .attribute(Attributes.idAttribute, id); |
| 0 | 218 |
| 219 addArchivedReference(value, id); | |
| 220 } | |
| 221 } | |
| 222 | |
| 223 private void archiveStruct (T) (T value, DataType key) | |
| 224 { | |
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225 lastElement = lastElement.element(Tags.structTag) |
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226 .attribute(Attributes.typeAttribute, toDataType(T.stringof)) |
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227 .attribute(Attributes.keyAttribute, key); |
| 0 | 228 } |
| 229 | |
| 230 private void archiveString (T) (T value, DataType key) | |
| 231 { | |
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232 lastElement.element(Tags.stringTag, toDataType(value)) |
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233 .attribute(Attributes.typeAttribute, toDataType(BaseTypeOfArray!(T).stringof)) |
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234 .attribute(Attributes.keyAttribute, key); |
| 0 | 235 } |
| 236 | |
| 237 private void archiveArray (T) (T value, DataType key) | |
| 238 { | |
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239 lastElement = lastElement.element(Tags.arrayTag) |
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240 .attribute(Attributes.typeAttribute, toDataType(BaseTypeOfArray!(T).stringof)) |
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241 .attribute(Attributes.lengthAttribute, toDataType(value.length)) |
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242 .attribute(Attributes.keyAttribute, key); |
| 0 | 243 } |
| 244 | |
| 245 private void archiveAssociativeArray (T) (T value, DataType key) | |
| 246 { | |
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247 lastElement = lastElement.element(Tags.associativeArrayTag) |
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248 .attribute(Attributes.keyTypeAttribute, toDataType(KeyTypeOfAssociativeArray!(T).stringof)) |
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249 .attribute(Attributes.valueTypeAttribute, toDataType(ValueTypeOfAssociativeArray!(T).stringof)) |
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250 .attribute(Attributes.lengthAttribute, toDataType(value.length)) |
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251 .attribute(Attributes.keyAttribute, key); |
| 0 | 252 } |
| 253 | |
| 254 private void archivePointer (T) (T value, DataType key, ref bool callDelegate) | |
| 255 { | |
| 256 if (auto reference = getArchivedReference(value)) | |
| 257 { | |
| 258 archiveReference(key, reference); | |
| 259 callDelegate = false; | |
| 260 } | |
| 261 | |
| 262 else | |
| 263 { | |
| 264 DataType id = nextId; | |
| 265 | |
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266 lastElement = lastElement.element(Tags.pointerTag) |
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267 .attribute(Attributes.keyAttribute, key) |
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268 .attribute(Attributes.idAttribute, id); |
| 0 | 269 |
| 270 addArchivedReference(value, id); | |
| 271 } | |
| 272 } | |
| 273 | |
| 274 private void archiveEnum (T) (T value, DataType key) | |
| 275 { | |
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276 lastElement.element(Tags.enumTag, toDataType(value)) |
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277 .attribute(Attributes.typeAttribute, toDataType(T.stringof)) |
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278 .attribute(Attributes.keyAttribute, key); |
| 0 | 279 } |
| 280 | |
| 281 private void archivePrimitive (T) (T value, DataType key) | |
| 282 { | |
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283 lastElement.element(toDataType(T.stringof), toDataType(value)) |
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284 .attribute(Attributes.keyAttribute, key); |
| 0 | 285 } |
| 286 | |
| 287 private void archiveTypeDef (T) (T value, DataType key) | |
| 288 { | |
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289 lastElement = lastElement.element(Tags.typedefTag) |
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290 .attribute(Attributes.typeAttribute, toDataType(BaseTypeOfTypeDef!(T).stringof)); |
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291 .attribute(Attributes.key, key); |
| 0 | 292 } |
| 293 | |
| 294 public T unarchive (T) (DataType key, T delegate (T) dg = null) | |
| 295 { | |
| 296 if (!hasBegunUnarchiving) | |
| 297 beginUnarchiving(data); | |
| 298 | |
| 299 return restore!(T)(lastElement) in { | |
| 300 T value; | |
| 301 | |
| 302 bool callDelegate = true; | |
| 303 | |
| 304 static if (isTypeDef!(T)) | |
| 305 value = unarchiveTypeDef!(T)(key); | |
| 306 | |
| 307 else static if (isObject!(T)) | |
| 308 value = unarchiveObject!(T)(key, callDelegate); | |
| 309 | |
| 310 else static if (isStruct!(T)) | |
| 311 value = unarchiveStruct!(T)(key); | |
| 312 | |
| 313 else static if (isString!(T)) | |
| 314 value = unarchiveString!(T)(key); | |
| 315 | |
| 316 else static if (isArray!(T)) | |
| 317 value = unarchiveArray!(T)(key); | |
| 318 | |
| 319 else static if (isAssociativeArray!(T)) | |
| 320 value = unarchiveAssociativeArray!(T)(key); | |
| 321 | |
| 322 else static if (isPrimitive!(T)) | |
| 323 value = unarchivePrimitive!(T)(key); | |
| 324 | |
| 325 else static if (isPointer!(T)) | |
| 326 value = unarchivePointer!(T)(key, callDelegate); | |
| 327 | |
| 328 else static if (isEnum!(T)) | |
| 329 value = unarchiveEnum!(T)(key); | |
| 330 | |
| 331 else | |
| 332 static assert(false, format!(`The type "`, T, `" cannot be unarchived.`)); | |
| 333 | |
| 334 if (callDelegate && dg) | |
| 335 return dg(value); | |
| 336 | |
| 337 return value; | |
| 338 }; | |
| 339 } | |
| 340 | |
| 341 private T unarchiveObject (T) (DataType key, ref bool callDelegate) | |
| 342 { | |
| 343 DataType id = unarchiveReference(key); | |
| 344 | |
| 345 if (auto reference = getUnarchivedReference!(T)(id)) | |
| 346 { | |
| 347 callDelegate = false; | |
| 348 return *reference; | |
| 349 } | |
| 350 | |
| 351 auto tmp = getElement(Tags.objectTag, key, Attributes.keyAttribute, false); | |
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352 |
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353 if (!tmp.isValid) |
| 0 | 354 { |
| 355 lastElement = getElement(Tags.nullTag, key); | |
| 356 callDelegate = false; | |
| 357 return null; | |
| 358 } | |
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359 |
| 0 | 360 lastElement = tmp; |
| 361 | |
| 362 auto runtimeType = getValueOfAttribute(Attributes.runtimeTypeAttribute); | |
| 363 auto name = fromDataType!(string)(runtimeType); | |
| 364 id = getValueOfAttribute(Attributes.idAttribute); | |
| 365 | |
| 366 T result; | |
| 367 | |
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368 /*static if (is(typeof(T._ctor))) |
| 0 | 369 { |
| 370 ParameterTupleOf!(typeof(T._ctor)) params; | |
| 371 result = factory!(T, typeof(params))(name, params); | |
| 372 } | |
| 373 | |
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374 else*/ |
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375 result = cast(T) newInstance(name); |
| 0 | 376 |
| 377 addUnarchivedReference(result, id); | |
| 378 | |
| 379 return result; | |
| 380 } | |
| 381 | |
| 382 private T unarchiveStruct (T) (DataType key) | |
| 383 { | |
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384 auto element = getElement(Tags.structTag, key); |
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385 |
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386 if (element.isValid) |
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387 lastElement = element; |
| 0 | 388 |
| 389 return T.init; | |
| 390 } | |
| 391 | |
| 392 private T unarchiveString (T) (DataType key) | |
| 393 { | |
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394 auto element = getElement(Tags.stringTag, key); |
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395 |
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396 if (!element.isValid) |
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397 return T.init; |
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398 |
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399 return fromDataType!(T)(element.value); |
| 0 | 400 } |
| 401 | |
| 402 private T unarchiveArray (T) (DataType key) | |
| 403 { | |
| 404 T value; | |
| 405 | |
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406 auto element = getElement(Tags.arrayTag, key); |
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407 |
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408 if (!element.isValid) |
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409 return T.init; |
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410 |
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411 lastElement = element; |
| 0 | 412 auto length = getValueOfAttribute(Attributes.lengthAttribute); |
| 413 value.length = fromDataType!(size_t)(length); | |
| 414 | |
| 415 return value; | |
| 416 } | |
| 417 | |
| 418 private T unarchiveAssociativeArray (T) (DataType key) | |
| 419 { | |
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420 auto element = getElement(Tags.associativeArrayTag, key); |
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421 |
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422 if (element.isValid) |
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423 lastElement = element; |
| 0 | 424 |
| 425 return T.init; | |
| 426 } | |
| 427 | |
| 428 private T unarchivePointer (T) (DataType key, ref bool callDelegate) | |
| 429 { | |
| 430 DataType id = unarchiveReference(key); | |
| 431 | |
| 432 if (auto reference = getUnarchivedReference!(T)(id)) | |
| 433 { | |
| 434 callDelegate = false; | |
| 435 return *reference; | |
| 436 } | |
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437 |
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438 auto element = getElement(Tags.pointerTag, key); |
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439 |
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440 if (!element.isValid) |
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441 return T.init; |
| 0 | 442 |
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443 lastElement = element; |
| 0 | 444 id = getValueOfAttribute(Attributes.idAttribute); |
| 445 | |
| 446 T result = new BaseTypeOfPointer!(T); | |
| 447 | |
| 448 addUnarchivedReference(result, id); | |
| 449 | |
| 450 return result; | |
| 451 } | |
| 452 | |
| 453 private T unarchiveEnum (T) (DataType key) | |
| 454 { | |
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455 auto element = getElement(Tags.enumTag, key); |
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456 |
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457 if (!element.isValid) |
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458 return T.init; |
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459 |
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460 return fromDataType!(T)(element.value); |
| 0 | 461 } |
| 462 | |
| 463 private T unarchivePrimitive (T) (DataType key) | |
| 464 { | |
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465 auto element = getElement(toDataType(T.stringof), key); |
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466 |
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467 if (!element.isValid) |
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468 return T.init; |
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469 |
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470 return fromDataType!(T)(element.value); |
| 0 | 471 } |
| 472 | |
| 473 private T unarchiveTypeDef (T) (DataType key) | |
| 474 { | |
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475 auto element = getElement(Tags.typedefTag, key); |
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476 |
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477 if (element.isValid) |
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478 lastElement = element; |
| 0 | 479 |
| 480 return T.init; | |
| 481 } | |
| 482 | |
| 483 public AssociativeArrayVisitor!(KeyTypeOfAssociativeArray!(T), ValueTypeOfAssociativeArray!(T)) unarchiveAssociativeArrayVisitor (T) () | |
| 484 { | |
| 485 return AssociativeArrayVisitor!(KeyTypeOfAssociativeArray!(T), ValueTypeOfAssociativeArray!(T))(this); | |
| 486 } | |
| 487 | |
| 488 public void archiveBaseClass (T : Object) (DataType key) | |
| 489 { | |
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490 lastElement = lastElement.element(Tags.baseTag) |
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491 .attribute(Attributes.typeAttribute, toDataType(T.stringof)) |
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492 .attribute(Attributes.keyAttribute, key); |
| 0 | 493 } |
| 494 | |
| 495 public void unarchiveBaseClass (T : Object) (DataType key) | |
| 496 { | |
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497 auto element = getElement(Tags.baseTag, key); |
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498 |
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499 if (element.isValid) |
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500 lastElement = element; |
| 0 | 501 } |
| 502 | |
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503 version (Tango) |
| 0 | 504 { |
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505 template errorMessage (ArchiveMode mode = ArchiveMode.archiving) |
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506 { |
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507 static if (mode == ArchiveMode.archiving) |
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508 const errorMessage = "Could not continue archiving due to unrecognized data format: "; |
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509 |
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510 else static if (mode == ArchiveMode.unarchiving) |
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511 const errorMessage = "Could not continue unarchiving due to unrecognized data format: "; |
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512 } |
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513 } |
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514 |
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515 else |
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516 { |
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517 mixin( |
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518 `template errorMessage (ArchiveMode mode = ArchiveMode.archiving) |
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519 { |
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520 static if (mode == ArchiveMode.archiving) |
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521 enum errorMessage = "Could not continue archiving due to unrecognized data format: "; |
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522 |
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523 else static if (mode == ArchiveMode.unarchiving) |
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524 enum errorMessage = "Could not continue unarchiving due to unrecognized data format: "; |
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525 }` |
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526 ); |
| 0 | 527 } |
| 528 | |
| 529 private doc.Node getElement (DataType tag, DataType key, DataType attribute = Attributes.keyAttribute, bool throwOnError = true) | |
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530 { |
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531 auto set = lastElement.query[tag].attribute((doc.Node node) { |
| 0 | 532 if (node.name == attribute && node.value == key) |
| 533 return true; | |
| 534 | |
| 535 return false; | |
| 536 }); | |
| 537 | |
| 538 if (set.nodes.length == 1) | |
| 539 return set.nodes[0].parent; | |
| 540 | |
| 541 else | |
| 542 { | |
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543 if (throwOnError && errorCallback) |
| 0 | 544 { |
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545 if (set.nodes.length == 0) |
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546 errorCallback(new ArchiveException(`Could not find an element "` ~ to!(string)(tag) ~ `" with the attribute "` ~ to!(string)(Attributes.keyAttribute) ~ `" with the value "` ~ to!(string)(key) ~ `".`, __FILE__, __LINE__), [tag, Attributes.keyAttribute, key]); |
| 0 | 547 |
| 548 else | |
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549 errorCallback(new ArchiveException(`Could not unarchive the value with the key "` ~ to!(string)(key) ~ `" due to malformed data.`, __FILE__, __LINE__), [tag, Attributes.keyAttribute, key]); |
| 0 | 550 } |
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551 |
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552 return doc.Node.invalid; |
| 0 | 553 } |
| 554 } | |
| 555 | |
| 556 private DataType getValueOfAttribute (DataType attribute) | |
| 557 { | |
| 558 auto set = lastElement.query.attribute(attribute); | |
| 559 | |
| 560 if (set.nodes.length == 1) | |
| 561 return set.nodes[0].value; | |
| 562 | |
| 563 else | |
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564 { |
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565 if (errorCallback) |
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566 { |
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567 if (set.nodes.length == 0) |
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568 errorCallback(new ArchiveException(`Could not find the attribute "` ~ to!(string)(attribute) ~ `".`, __FILE__, __LINE__), [attribute]); |
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569 |
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570 else |
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571 errorCallback(new ArchiveException(`Could not unarchive the value of the attribute "` ~ to!(string)(attribute) ~ `" due to malformed data.`, __FILE__, __LINE__), [attribute]); |
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572 } |
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573 } |
| 0 | 574 } |
| 575 | |
| 576 private void addArchivedReference (T) (T value, DataType id) | |
| 577 { | |
| 578 static assert(isReference!(T), format!(`The given type "`, T, `" is not a reference type, i.e. object or pointer.`)); | |
| 579 | |
| 580 archivedReferences[cast(void*) value] = id; | |
| 581 } | |
| 582 | |
| 583 private void addUnarchivedReference (T) (T value, DataType id) | |
| 584 { | |
| 585 static assert(isReference!(T), format!(`The given type "`, T, `" is not a reference type, i.e. object or pointer.`)); | |
| 586 | |
| 587 unarchivedReferences[id] = cast(void*) value; | |
| 588 } | |
| 589 | |
| 590 private DataType getArchivedReference (T) (T value) | |
| 591 { | |
| 592 if (auto tmp = cast(void*) value in archivedReferences) | |
| 593 return *tmp; | |
| 594 | |
| 595 return null; | |
| 596 } | |
| 597 | |
| 598 private T* getUnarchivedReference (T) (DataType id) | |
| 599 { | |
| 600 if (auto reference = id in unarchivedReferences) | |
| 601 return cast(T*) reference; | |
| 602 | |
| 603 return null; | |
| 604 } | |
| 605 | |
| 606 private DataType nextId () | |
| 607 { | |
| 608 return toDataType(idCounter++); | |
| 609 } | |
| 610 | |
| 611 private void archiveReference (DataType key, DataType id) | |
| 612 { | |
|
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613 lastElement.element(Tags.referenceTag, id) |
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Serialization works now with D2, deserialization still doesn't work
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parents:
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changeset
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614 .attribute(Attributes.keyAttribute, key); |
| 0 | 615 } |
| 616 | |
| 617 private DataType unarchiveReference (DataType key) | |
| 618 { | |
| 619 auto element = getElement(Tags.referenceTag, key, Attributes.keyAttribute, false); | |
| 620 | |
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Serialization works now with D2, deserialization still doesn't work
Jacob Carlborg <doob@me.com>
parents:
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diff
changeset
|
621 if (element.isValid) |
| 0 | 622 return element.value; |
| 623 | |
| 624 return cast(DataType) null; | |
| 625 } | |
| 626 | |
| 6 | 627 private struct AssociativeArrayVisitor (Key, Value) |
| 0 | 628 { |
| 629 private XMLArchive archive; | |
| 630 | |
| 631 static AssociativeArrayVisitor opCall (XMLArchive archive) | |
| 632 { | |
| 633 AssociativeArrayVisitor aai; | |
| 634 aai.archive = archive; | |
| 635 | |
| 636 return aai; | |
| 637 } | |
| 638 | |
| 639 int opApply(int delegate(ref Key, ref Value) dg) | |
| 640 { | |
| 641 int result; | |
| 642 | |
| 643 foreach (node ; archive.lastElement.children) | |
| 644 { | |
| 645 restore(archive.lastElement) in { | |
| 646 archive.lastElement = node; | |
| 647 | |
| 648 if (node.attributes.exist) | |
| 649 { | |
| 650 Key key = to!(Key)(archive.getValueOfAttribute(Attributes.keyAttribute)); | |
| 651 Value value = to!(Value)(node.value); | |
| 652 | |
| 653 result = dg(key, value); | |
| 654 } | |
| 655 }; | |
| 656 | |
| 657 if (result) | |
| 658 break; | |
| 659 } | |
| 660 | |
| 661 return result; | |
| 662 } | |
| 663 } | |
| 664 } |