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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/bigint_operations.h" | 5 #include "vm/bigint_operations.h" |
6 #include "vm/object.h" | 6 #include "vm/object.h" |
7 #include "vm/object_store.h" | 7 #include "vm/object_store.h" |
8 #include "vm/snapshot.h" | 8 #include "vm/snapshot.h" |
9 #include "vm/symbols.h" | 9 #include "vm/symbols.h" |
10 #include "vm/visitor.h" | 10 #include "vm/visitor.h" |
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498 ASSERT((kind != Snapshot::kMessage) && | 498 ASSERT((kind != Snapshot::kMessage) && |
499 !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this))); | 499 !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this))); |
500 | 500 |
501 // Write out the serialization header value for this object. | 501 // Write out the serialization header value for this object. |
502 writer->WriteInlinedObjectHeader(object_id); | 502 writer->WriteInlinedObjectHeader(object_id); |
503 | 503 |
504 // Write out the class and tags information. | 504 // Write out the class and tags information. |
505 writer->WriteVMIsolateObject(kClosureDataCid); | 505 writer->WriteVMIsolateObject(kClosureDataCid); |
506 writer->WriteIntptrValue(writer->GetObjectTags(this)); | 506 writer->WriteIntptrValue(writer->GetObjectTags(this)); |
507 | 507 |
508 // Write out all the object pointer fields. | 508 // Context scope. |
509 SnapshotWriterVisitor visitor(writer); | 509 // We don't write the context scope in the snapshot. |
510 visitor.VisitPointers(from(), to()); | 510 writer->WriteObjectImpl(Object::null()); |
| 511 |
| 512 // Parent function. |
| 513 writer->WriteObjectImpl(ptr()->parent_function_); |
| 514 |
| 515 // Signature class. |
| 516 writer->WriteObjectImpl(ptr()->signature_class_); |
| 517 |
| 518 // Static closure/Closure allocation stub. |
| 519 // We don't write the closure or allocation stub in the snapshot. |
| 520 writer->WriteObjectImpl(Object::null()); |
511 } | 521 } |
512 | 522 |
513 | 523 |
514 RawRedirectionData* RedirectionData::ReadFrom(SnapshotReader* reader, | 524 RawRedirectionData* RedirectionData::ReadFrom(SnapshotReader* reader, |
515 intptr_t object_id, | 525 intptr_t object_id, |
516 intptr_t tags, | 526 intptr_t tags, |
517 Snapshot::Kind kind) { | 527 Snapshot::Kind kind) { |
518 ASSERT(reader != NULL); | 528 ASSERT(reader != NULL); |
519 ASSERT((kind != Snapshot::kMessage) && | 529 ASSERT((kind != Snapshot::kMessage) && |
520 !RawObject::IsCreatedFromSnapshot(tags)); | 530 !RawObject::IsCreatedFromSnapshot(tags)); |
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1206 // Write out all the object pointer fields. | 1216 // Write out all the object pointer fields. |
1207 SnapshotWriterVisitor visitor(writer); | 1217 SnapshotWriterVisitor visitor(writer); |
1208 visitor.VisitPointers(from(), to(ptr()->num_variables_)); | 1218 visitor.VisitPointers(from(), to(ptr()->num_variables_)); |
1209 } | 1219 } |
1210 | 1220 |
1211 | 1221 |
1212 RawContextScope* ContextScope::ReadFrom(SnapshotReader* reader, | 1222 RawContextScope* ContextScope::ReadFrom(SnapshotReader* reader, |
1213 intptr_t object_id, | 1223 intptr_t object_id, |
1214 intptr_t tags, | 1224 intptr_t tags, |
1215 Snapshot::Kind kind) { | 1225 Snapshot::Kind kind) { |
1216 ASSERT(reader != NULL); | 1226 UNREACHABLE(); |
1217 ASSERT(kind == Snapshot::kMessage); | 1227 return NULL; |
1218 | |
1219 // Allocate context scope object. | |
1220 intptr_t num_vars = reader->ReadIntptrValue(); | |
1221 ContextScope& scope = ContextScope::ZoneHandle(reader->isolate(), | |
1222 ContextScope::New(num_vars)); | |
1223 reader->AddBackRef(object_id, &scope, kIsDeserialized); | |
1224 | |
1225 // Set the object tags. | |
1226 scope.set_tags(tags); | |
1227 | |
1228 // Set all the object fields. | |
1229 // TODO(5411462): Need to assert No GC can happen here, even though | |
1230 // allocations may happen. | |
1231 intptr_t num_flds = (scope.raw()->to(num_vars) - scope.raw()->from()); | |
1232 for (intptr_t i = 0; i <= num_flds; i++) { | |
1233 scope.StorePointer((scope.raw()->from() + i), reader->ReadObjectRef()); | |
1234 } | |
1235 | |
1236 return scope.raw(); | |
1237 } | 1228 } |
1238 | 1229 |
1239 | 1230 |
1240 void RawContextScope::WriteTo(SnapshotWriter* writer, | 1231 void RawContextScope::WriteTo(SnapshotWriter* writer, |
1241 intptr_t object_id, | 1232 intptr_t object_id, |
1242 Snapshot::Kind kind) { | 1233 Snapshot::Kind kind) { |
1243 ASSERT(writer != NULL); | 1234 UNREACHABLE(); |
1244 ASSERT(kind == Snapshot::kMessage); | |
1245 | |
1246 // Write out the serialization header value for this object. | |
1247 writer->WriteInlinedObjectHeader(object_id); | |
1248 | |
1249 // Write out the class and tags information. | |
1250 writer->WriteVMIsolateObject(kContextScopeCid); | |
1251 writer->WriteIntptrValue(writer->GetObjectTags(this)); | |
1252 | |
1253 // Serialize number of variables. | |
1254 writer->WriteIntptrValue(ptr()->num_variables_); | |
1255 | |
1256 // Write out all the object pointer fields. | |
1257 SnapshotWriterVisitor visitor(writer); | |
1258 visitor.VisitPointers(from(), to(ptr()->num_variables_)); | |
1259 } | 1235 } |
1260 | 1236 |
1261 | 1237 |
1262 RawICData* ICData::ReadFrom(SnapshotReader* reader, | 1238 RawICData* ICData::ReadFrom(SnapshotReader* reader, |
1263 intptr_t object_id, | 1239 intptr_t object_id, |
1264 intptr_t tags, | 1240 intptr_t tags, |
1265 Snapshot::Kind kind) { | 1241 Snapshot::Kind kind) { |
1266 UNREACHABLE(); | 1242 UNREACHABLE(); |
1267 return NULL; | 1243 return NULL; |
1268 } | 1244 } |
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2234 // Write out the class and tags information. | 2210 // Write out the class and tags information. |
2235 writer->WriteIndexedObject(kWeakPropertyCid); | 2211 writer->WriteIndexedObject(kWeakPropertyCid); |
2236 writer->WriteIntptrValue(writer->GetObjectTags(this)); | 2212 writer->WriteIntptrValue(writer->GetObjectTags(this)); |
2237 | 2213 |
2238 // Write out all the other fields. | 2214 // Write out all the other fields. |
2239 writer->Write<RawObject*>(ptr()->key_); | 2215 writer->Write<RawObject*>(ptr()->key_); |
2240 writer->Write<RawObject*>(ptr()->value_); | 2216 writer->Write<RawObject*>(ptr()->value_); |
2241 } | 2217 } |
2242 | 2218 |
2243 } // namespace dart | 2219 } // namespace dart |
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