27 |
#include <assert.h> |
#include <assert.h> |
28 |
#include <string.h> // for memcpy() |
#include <string.h> // for memcpy() |
29 |
#include <stdlib.h> // for atof() |
#include <stdlib.h> // for atof() |
30 |
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#include <cxxabi.h> |
31 |
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|
32 |
#include "helper.h" |
#include "helper.h" |
33 |
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34 |
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#define LIBGIG_EPOCH_TIME ((time_t)0) |
35 |
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|
36 |
namespace Serialization { |
namespace Serialization { |
37 |
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|
38 |
// *************** DataType *************** |
// *************** DataType *************** |
39 |
// * |
// * |
40 |
|
|
41 |
static UID _createNullUID() { |
static UID _createNullUID() { |
42 |
return (UID) { NULL, 0 }; |
const UID uid = { NULL, 0 }; |
43 |
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return uid; |
44 |
} |
} |
45 |
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|
46 |
const UID NO_UID = _createNullUID(); |
const UID NO_UID = _createNullUID(); |
128 |
} |
} |
129 |
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|
130 |
String DataType::asLongDescr() const { |
String DataType::asLongDescr() const { |
|
//TODO: Demangling of C++ raw type names |
|
131 |
String s = m_baseTypeName; |
String s = m_baseTypeName; |
132 |
if (!m_customTypeName.empty()) |
if (!m_customTypeName.empty()) |
133 |
s += " " + m_customTypeName; |
s += " " + customTypeName(true); |
134 |
if (isPointer()) |
if (isPointer()) |
135 |
s += " pointer"; |
s += " pointer"; |
136 |
return s; |
return s; |
137 |
} |
} |
138 |
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139 |
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String DataType::customTypeName(bool demangle) const { |
140 |
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if (!demangle) return m_customTypeName; |
141 |
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int status; |
142 |
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const char* result = |
143 |
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abi::__cxa_demangle(m_customTypeName.c_str(), 0, 0, &status); |
144 |
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return (status == 0) ? result : m_customTypeName; |
145 |
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} |
146 |
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|
147 |
// *************** Member *************** |
// *************** Member *************** |
148 |
// * |
// * |
149 |
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|
240 |
return other.minVersion() <= this->version(); |
return other.minVersion() <= this->version(); |
241 |
} |
} |
242 |
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243 |
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void Object::setVersion(Version v) { |
244 |
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m_version = v; |
245 |
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} |
246 |
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247 |
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void Object::setMinVersion(Version v) { |
248 |
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m_minVersion = v; |
249 |
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} |
250 |
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|
251 |
Member Object::memberNamed(String name) const { |
Member Object::memberNamed(String name) const { |
252 |
for (int i = 0; i < m_members.size(); ++i) |
for (int i = 0; i < m_members.size(); ++i) |
253 |
if (m_members[i].name() == name) |
if (m_members[i].name() == name) |
255 |
return Member(); |
return Member(); |
256 |
} |
} |
257 |
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|
258 |
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Member Object::memberByUID(const UID& uid) const { |
259 |
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if (!uid) return Member(); |
260 |
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for (int i = 0; i < m_members.size(); ++i) |
261 |
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if (m_members[i].uid() == uid) |
262 |
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return m_members[i]; |
263 |
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return Member(); |
264 |
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} |
265 |
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|
266 |
void Object::remove(const Member& member) { |
void Object::remove(const Member& member) { |
267 |
for (int i = 0; i < m_members.size(); ++i) { |
for (int i = 0; i < m_members.size(); ++i) { |
268 |
if (m_members[i] == member) { |
if (m_members[i] == member) { |
296 |
m_operation = OPERATION_NONE; |
m_operation = OPERATION_NONE; |
297 |
m_root = NO_UID; |
m_root = NO_UID; |
298 |
m_isModified = false; |
m_isModified = false; |
299 |
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m_timeCreated = m_timeModified = LIBGIG_EPOCH_TIME; |
300 |
} |
} |
301 |
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|
302 |
Archive::Archive(const RawData& data) { |
Archive::Archive(const RawData& data) { |
303 |
m_operation = OPERATION_NONE; |
m_operation = OPERATION_NONE; |
304 |
m_root = NO_UID; |
m_root = NO_UID; |
305 |
m_isModified = false; |
m_isModified = false; |
306 |
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m_timeCreated = m_timeModified = LIBGIG_EPOCH_TIME; |
307 |
decode(m_rawData); |
decode(m_rawData); |
308 |
} |
} |
309 |
|
|
311 |
m_operation = OPERATION_NONE; |
m_operation = OPERATION_NONE; |
312 |
m_root = NO_UID; |
m_root = NO_UID; |
313 |
m_isModified = false; |
m_isModified = false; |
314 |
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m_timeCreated = m_timeModified = LIBGIG_EPOCH_TIME; |
315 |
decode(data, size); |
decode(data, size); |
316 |
} |
} |
317 |
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|
333 |
return _encodeBlob(s); |
return _encodeBlob(s); |
334 |
} |
} |
335 |
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336 |
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static String _encode(const time_t& time) { |
337 |
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return _encodeBlob(ToString(time)); |
338 |
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} |
339 |
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|
340 |
static String _encode(const DataType& type) { |
static String _encode(const DataType& type) { |
341 |
String s; |
String s; |
342 |
s += _encodeBlob(type.baseTypeName()); |
s += _encodeBlob(type.baseTypeName()); |
418 |
return s; |
return s; |
419 |
} |
} |
420 |
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|
421 |
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template<typename T> |
422 |
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static T _primitiveObjectValueToNumber(const Object& obj) { |
423 |
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T value = 0; |
424 |
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const DataType& type = obj.type(); |
425 |
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const ID& id = obj.uid().id; |
426 |
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void* ptr = obj.m_data.empty() ? (void*)id : (void*)&obj.m_data[0]; |
427 |
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if (!obj.m_data.empty()) |
428 |
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assert(type.size() == obj.m_data.size()); |
429 |
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if (type.isPrimitive() && !type.isPointer()) { |
430 |
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if (type.isInteger() || type.isEnum()) { |
431 |
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if (type.isSigned()) { |
432 |
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if (type.size() == 1) |
433 |
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value = (T)*(int8_t*)ptr; |
434 |
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else if (type.size() == 2) |
435 |
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value = (T)*(int16_t*)ptr; |
436 |
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else if (type.size() == 4) |
437 |
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value = (T)*(int32_t*)ptr; |
438 |
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else if (type.size() == 8) |
439 |
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value = (T)*(int64_t*)ptr; |
440 |
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else |
441 |
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assert(false /* unknown signed int type size */); |
442 |
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} else { |
443 |
|
if (type.size() == 1) |
444 |
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value = (T)*(uint8_t*)ptr; |
445 |
|
else if (type.size() == 2) |
446 |
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value = (T)*(uint16_t*)ptr; |
447 |
|
else if (type.size() == 4) |
448 |
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value = (T)*(uint32_t*)ptr; |
449 |
|
else if (type.size() == 8) |
450 |
|
value = (T)*(uint64_t*)ptr; |
451 |
|
else |
452 |
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assert(false /* unknown unsigned int type size */); |
453 |
|
} |
454 |
|
} else if (type.isReal()) { |
455 |
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if (type.size() == sizeof(float)) |
456 |
|
value = (T)*(float*)ptr; |
457 |
|
else if (type.size() == sizeof(double)) |
458 |
|
value = (T)*(double*)ptr; |
459 |
|
else |
460 |
|
assert(false /* unknown floating point type */); |
461 |
|
} else if (type.isBool()) { |
462 |
|
value = (T)*(bool*)ptr; |
463 |
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} else { |
464 |
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assert(false /* unknown primitive type */); |
465 |
|
} |
466 |
|
} |
467 |
|
return value; |
468 |
|
} |
469 |
|
|
470 |
static String _encodePrimitiveValue(const Object& obj) { |
static String _encodePrimitiveValue(const Object& obj) { |
471 |
return _encodeBlob( _primitiveObjectValueToString(obj) ); |
return _encodeBlob( _primitiveObjectValueToString(obj) ); |
472 |
} |
} |
501 |
s += _encodeBlob(ToString(ENCODING_FORMAT_MINOR_VERSION)); |
s += _encodeBlob(ToString(ENCODING_FORMAT_MINOR_VERSION)); |
502 |
s += _encode(m_root); |
s += _encode(m_root); |
503 |
s += _encode(m_allObjects); |
s += _encode(m_allObjects); |
504 |
|
s += _encodeBlob(m_name); |
505 |
|
s += _encodeBlob(m_comment); |
506 |
|
s += _encode(m_timeCreated); |
507 |
|
s += _encode(m_timeModified); |
508 |
return _encodeBlob(s); |
return _encodeBlob(s); |
509 |
} |
} |
510 |
|
|
511 |
void Archive::encode() { |
void Archive::encode() { |
512 |
m_rawData.clear(); |
m_rawData.clear(); |
513 |
String s = MAGIC_START; |
String s = MAGIC_START; |
514 |
|
m_timeModified = time(NULL); |
515 |
|
if (m_timeCreated == LIBGIG_EPOCH_TIME) |
516 |
|
m_timeCreated = m_timeModified; |
517 |
s += _encodeRootBlob(); |
s += _encodeRootBlob(); |
518 |
m_rawData.resize(s.length() + 1); |
m_rawData.resize(s.length() + 1); |
519 |
memcpy(&m_rawData[0], &s[0], s.length() + 1); |
memcpy(&m_rawData[0], &s[0], s.length() + 1); |
526 |
}; |
}; |
527 |
|
|
528 |
static _Blob _decodeBlob(const char* p, const char* end, bool bThrow = true) { |
static _Blob _decodeBlob(const char* p, const char* end, bool bThrow = true) { |
529 |
if (!bThrow && p >= end) |
if (!bThrow && p >= end) { |
530 |
return (_Blob) { p, end }; |
const _Blob blob = { p, end }; |
531 |
|
return blob; |
532 |
|
} |
533 |
size_t sz = 0; |
size_t sz = 0; |
534 |
for (; true; ++p) { |
for (; true; ++p) { |
535 |
if (p >= end) |
if (p >= end) |
544 |
++p; |
++p; |
545 |
if (p + sz > end) |
if (p + sz > end) |
546 |
throw Exception("Decode Error: Premature end of blob"); |
throw Exception("Decode Error: Premature end of blob"); |
547 |
return (_Blob) { p, p + sz }; |
const _Blob blob = { p, p + sz }; |
548 |
|
return blob; |
549 |
} |
} |
550 |
|
|
551 |
template<typename T_int> |
template<typename T_int> |
620 |
return s; |
return s; |
621 |
} |
} |
622 |
|
|
623 |
|
static time_t _popTimeBlob(const char*& p, const char* end) { |
624 |
|
const uint64_t i = _popIntBlob<uint64_t>(p, end); |
625 |
|
return (time_t) i; |
626 |
|
} |
627 |
|
|
628 |
DataType _popDataTypeBlob(const char*& p, const char* end) { |
DataType _popDataTypeBlob(const char*& p, const char* end) { |
629 |
_Blob blob = _decodeBlob(p, end); |
_Blob blob = _decodeBlob(p, end); |
630 |
p = blob.p; |
p = blob.p; |
649 |
const ID id = (ID) _popIntBlob<size_t>(p, end); |
const ID id = (ID) _popIntBlob<size_t>(p, end); |
650 |
const size_t size = _popIntBlob<size_t>(p, end); |
const size_t size = _popIntBlob<size_t>(p, end); |
651 |
|
|
652 |
return (UID) { id, size }; |
const UID uid = { id, size }; |
653 |
|
return uid; |
654 |
} |
} |
655 |
|
|
656 |
static UIDChain _popUIDChainBlob(const char*& p, const char* end) { |
static UIDChain _popUIDChainBlob(const char*& p, const char* end) { |
802 |
_popObjectsBlob(p, end); |
_popObjectsBlob(p, end); |
803 |
if (!m_allObjects[m_root]) |
if (!m_allObjects[m_root]) |
804 |
throw Exception("Decode Error: Missing declared root object"); |
throw Exception("Decode Error: Missing declared root object"); |
805 |
|
|
806 |
|
m_name = _popStringBlob(p, end); |
807 |
|
m_comment = _popStringBlob(p, end); |
808 |
|
m_timeCreated = _popTimeBlob(p, end); |
809 |
|
m_timeModified = _popTimeBlob(p, end); |
810 |
} |
} |
811 |
|
|
812 |
void Archive::decode(const RawData& data) { |
void Archive::decode(const RawData& data) { |
813 |
m_rawData = data; |
m_rawData = data; |
814 |
m_allObjects.clear(); |
m_allObjects.clear(); |
815 |
m_isModified = false; |
m_isModified = false; |
816 |
|
m_timeCreated = m_timeModified = LIBGIG_EPOCH_TIME; |
817 |
const char* p = (const char*) &data[0]; |
const char* p = (const char*) &data[0]; |
818 |
const char* end = p + data.size(); |
const char* end = p + data.size(); |
819 |
if (memcmp(p, MAGIC_START, std::min(strlen(MAGIC_START), data.size()))) |
if (memcmp(p, MAGIC_START, std::min(strlen(MAGIC_START), data.size()))) |
848 |
m_root = NO_UID; |
m_root = NO_UID; |
849 |
m_rawData.clear(); |
m_rawData.clear(); |
850 |
m_isModified = false; |
m_isModified = false; |
851 |
|
m_timeCreated = m_timeModified = LIBGIG_EPOCH_TIME; |
852 |
|
} |
853 |
|
|
854 |
|
String Archive::name() const { |
855 |
|
return m_name; |
856 |
|
} |
857 |
|
|
858 |
|
void Archive::setName(String name) { |
859 |
|
if (m_name == name) return; |
860 |
|
m_name = name; |
861 |
|
m_isModified = true; |
862 |
|
} |
863 |
|
|
864 |
|
String Archive::comment() const { |
865 |
|
return m_comment; |
866 |
|
} |
867 |
|
|
868 |
|
void Archive::setComment(String comment) { |
869 |
|
if (m_comment == comment) return; |
870 |
|
m_comment = comment; |
871 |
|
m_isModified = true; |
872 |
|
} |
873 |
|
|
874 |
|
static tm _convertTimeStamp(const time_t& time, time_base_t base) { |
875 |
|
tm* pTm; |
876 |
|
switch (base) { |
877 |
|
case LOCAL_TIME: |
878 |
|
pTm = localtime(&time); |
879 |
|
break; |
880 |
|
case UTC_TIME: |
881 |
|
pTm = gmtime(&time); |
882 |
|
break; |
883 |
|
default: |
884 |
|
throw Exception("Time stamp with unknown time base (" + ToString((int64_t)base) + ") requested"); |
885 |
|
} |
886 |
|
if (!pTm) |
887 |
|
throw Exception("Failed assembling time stamp structure"); |
888 |
|
return *pTm; |
889 |
|
} |
890 |
|
|
891 |
|
time_t Archive::timeStampCreated() const { |
892 |
|
return m_timeCreated; |
893 |
|
} |
894 |
|
|
895 |
|
time_t Archive::timeStampModified() const { |
896 |
|
return m_timeModified; |
897 |
|
} |
898 |
|
|
899 |
|
tm Archive::dateTimeCreated(time_base_t base) const { |
900 |
|
return _convertTimeStamp(m_timeCreated, base); |
901 |
|
} |
902 |
|
|
903 |
|
tm Archive::dateTimeModified(time_base_t base) const { |
904 |
|
return _convertTimeStamp(m_timeModified, base); |
905 |
|
} |
906 |
|
|
907 |
|
void Archive::removeMember(Object& parent, const Member& member) { |
908 |
|
parent.remove(member); |
909 |
|
m_isModified = true; |
910 |
} |
} |
911 |
|
|
912 |
void Archive::remove(const Object& obj) { |
void Archive::remove(const Object& obj) { |
913 |
|
//FIXME: Should traverse from root object and remove all members associated with this object |
914 |
if (!obj.uid()) return; |
if (!obj.uid()) return; |
915 |
m_allObjects.erase(obj.uid()); |
m_allObjects.erase(obj.uid()); |
916 |
m_isModified = true; |
m_isModified = true; |
920 |
return m_allObjects[uid]; |
return m_allObjects[uid]; |
921 |
} |
} |
922 |
|
|
923 |
|
void Archive::setVersion(Object& object, Version v) { |
924 |
|
if (!object) return; |
925 |
|
object.setVersion(v); |
926 |
|
m_isModified = true; |
927 |
|
} |
928 |
|
|
929 |
|
void Archive::setMinVersion(Object& object, Version v) { |
930 |
|
if (!object) return; |
931 |
|
object.setMinVersion(v); |
932 |
|
m_isModified = true; |
933 |
|
} |
934 |
|
|
935 |
void Archive::setEnumValue(Object& object, uint64_t value) { |
void Archive::setEnumValue(Object& object, uint64_t value) { |
936 |
if (!object) return; |
if (!object) return; |
937 |
if (!object.type().isEnum()) |
if (!object.type().isEnum()) |
1071 |
return _primitiveObjectValueToString(*pObject); |
return _primitiveObjectValueToString(*pObject); |
1072 |
} |
} |
1073 |
|
|
1074 |
|
int64_t Archive::valueAsInt(const Object& object) { |
1075 |
|
if (!object) |
1076 |
|
throw Exception("Invalid object"); |
1077 |
|
if (!object.type().isInteger() && !object.type().isEnum()) |
1078 |
|
throw Exception("Object is neither an integer nor an enum"); |
1079 |
|
const Object* pObject = &object; |
1080 |
|
if (object.type().isPointer()) { |
1081 |
|
const Object& obj = objectByUID(object.uid(1)); |
1082 |
|
if (!obj) return 0; |
1083 |
|
pObject = &obj; |
1084 |
|
} |
1085 |
|
return _primitiveObjectValueToNumber<int64_t>(*pObject); |
1086 |
|
} |
1087 |
|
|
1088 |
|
double Archive::valueAsReal(const Object& object) { |
1089 |
|
if (!object) |
1090 |
|
throw Exception("Invalid object"); |
1091 |
|
if (!object.type().isReal()) |
1092 |
|
throw Exception("Object is not an real type"); |
1093 |
|
const Object* pObject = &object; |
1094 |
|
if (object.type().isPointer()) { |
1095 |
|
const Object& obj = objectByUID(object.uid(1)); |
1096 |
|
if (!obj) return 0; |
1097 |
|
pObject = &obj; |
1098 |
|
} |
1099 |
|
return _primitiveObjectValueToNumber<double>(*pObject); |
1100 |
|
} |
1101 |
|
|
1102 |
|
bool Archive::valueAsBool(const Object& object) { |
1103 |
|
if (!object) |
1104 |
|
throw Exception("Invalid object"); |
1105 |
|
if (!object.type().isBool()) |
1106 |
|
throw Exception("Object is not a bool"); |
1107 |
|
const Object* pObject = &object; |
1108 |
|
if (object.type().isPointer()) { |
1109 |
|
const Object& obj = objectByUID(object.uid(1)); |
1110 |
|
if (!obj) return 0; |
1111 |
|
pObject = &obj; |
1112 |
|
} |
1113 |
|
return _primitiveObjectValueToNumber<bool>(*pObject); |
1114 |
|
} |
1115 |
|
|
1116 |
// *************** Archive::Syncer *************** |
// *************** Archive::Syncer *************** |
1117 |
// * |
// * |
1118 |
|
|