| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include "vm/message.h" |
| #include "vm/native_entry.h" |
| #include "vm/object.h" |
| #include "vm/object_store.h" |
| #include "vm/snapshot.h" |
| #include "vm/stub_code.h" |
| #include "vm/symbols.h" |
| #include "vm/type_testing_stubs.h" |
| #include "vm/visitor.h" |
| |
| namespace dart { |
| |
| // TODO(dartbug.com/34796): enable or remove this optimization. |
| DEFINE_FLAG( |
| uint64_t, |
| externalize_typed_data_threshold, |
| kMaxUint64, |
| "Convert TypedData to ExternalTypedData when sending through a message" |
| " port after it exceeds certain size in bytes."); |
| |
| #define OFFSET_OF_FROM(obj) \ |
| obj.raw()->from() - reinterpret_cast<RawObject**>(obj.raw()->ptr()) |
| |
| // TODO(18854): Need to assert No GC can happen here, even though |
| // allocations may happen. |
| #define READ_OBJECT_FIELDS(object, from, to, as_reference) \ |
| intptr_t num_flds = (to) - (from); \ |
| for (intptr_t i = 0; i <= num_flds; i++) { \ |
| (*reader->PassiveObjectHandle()) = reader->ReadObjectImpl(as_reference); \ |
| object.StorePointer(((from) + i), reader->PassiveObjectHandle()->raw()); \ |
| } |
| |
| RawClass* Class::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| Class& cls = Class::ZoneHandle(reader->zone(), Class::null()); |
| cls ^= reader->ReadClassId(object_id); |
| return cls.raw(); |
| } |
| |
| void RawClass::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteVMIsolateObject(kClassCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| if (writer->can_send_any_object() || |
| writer->AllowObjectsInDartLibrary(ptr()->library_)) { |
| writer->WriteClassId(this); |
| } else { |
| // We do not allow regular dart instances in isolate messages. |
| writer->SetWriteException(Exceptions::kArgument, |
| "Illegal argument in isolate message" |
| " : (object is a regular Dart Instance)"); |
| } |
| } |
| |
| RawAbstractType* AbstractType::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); // AbstractType is an abstract class. |
| return NULL; |
| } |
| |
| void RawAbstractType::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); // AbstractType is an abstract class. |
| } |
| |
| RawType* Type::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Determine if the type class of this type is in the full snapshot. |
| reader->Read<bool>(); |
| |
| // Allocate type object. |
| Type& type = Type::ZoneHandle(reader->zone(), Type::New()); |
| bool is_canonical = RawObject::IsCanonical(tags); |
| reader->AddBackRef(object_id, &type, kIsDeserialized); |
| |
| // Set all non object fields. |
| type.set_token_pos(TokenPosition::SnapshotDecode(reader->Read<int32_t>())); |
| type.set_type_state(reader->Read<int8_t>()); |
| |
| // Read the code object for the type testing stub and set its entrypoint. |
| reader->EnqueueTypePostprocessing(type); |
| |
| // Set all the object fields. |
| READ_OBJECT_FIELDS(type, type.raw()->from(), type.raw()->to(), as_reference); |
| |
| // Read in the type class. |
| (*reader->ClassHandle()) = |
| Class::RawCast(reader->ReadObjectImpl(as_reference)); |
| type.set_type_class(*reader->ClassHandle()); |
| |
| if (is_canonical) { |
| type ^= type.Canonicalize(); |
| } |
| |
| // Fill in the type testing stub. |
| Code& code = *reader->CodeHandle(); |
| code = TypeTestingStubGenerator::DefaultCodeForType(type); |
| type.SetTypeTestingStub(code); |
| |
| return type.raw(); |
| } |
| |
| void RawType::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Only resolved and finalized types should be written to a snapshot. |
| ASSERT((ptr()->type_state_ == RawType::kFinalizedInstantiated) || |
| (ptr()->type_state_ == RawType::kFinalizedUninstantiated)); |
| ASSERT(ptr()->type_class_id_ != Object::null()); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kTypeCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| if (ptr()->type_class_id_->IsHeapObject()) { |
| // Type class is still an unresolved class. |
| UNREACHABLE(); |
| } |
| |
| // Lookup the type class. |
| RawSmi* raw_type_class_id = Smi::RawCast(ptr()->type_class_id_); |
| RawClass* type_class = |
| writer->isolate()->class_table()->At(Smi::Value(raw_type_class_id)); |
| |
| // Write out typeclass_is_in_fullsnapshot first as this will |
| // help the reader decide on how to canonicalize the type object. |
| intptr_t tags = writer->GetObjectTags(type_class); |
| bool typeclass_is_in_fullsnapshot = |
| (ClassIdTag::decode(tags) == kClassCid) && |
| Class::IsInFullSnapshot(reinterpret_cast<RawClass*>(type_class)); |
| writer->Write<bool>(typeclass_is_in_fullsnapshot); |
| |
| // Write out all the non object pointer fields. |
| writer->Write<int32_t>(ptr()->token_pos_.SnapshotEncode()); |
| writer->Write<int8_t>(ptr()->type_state_); |
| |
| // Write out all the object pointer fields. |
| ASSERT(ptr()->type_class_id_ != Object::null()); |
| SnapshotWriterVisitor visitor(writer, as_reference); |
| visitor.VisitPointers(from(), to()); |
| |
| // Write out the type class. |
| writer->WriteObjectImpl(type_class, as_reference); |
| } |
| |
| RawTypeRef* TypeRef::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Allocate type ref object. |
| TypeRef& type_ref = TypeRef::ZoneHandle(reader->zone(), TypeRef::New()); |
| reader->AddBackRef(object_id, &type_ref, kIsDeserialized); |
| |
| // Read the code object for the type testing stub and set its entrypoint. |
| reader->EnqueueTypePostprocessing(type_ref); |
| |
| // Set all the object fields. |
| READ_OBJECT_FIELDS(type_ref, type_ref.raw()->from(), type_ref.raw()->to(), |
| kAsReference); |
| |
| // Fill in the type testing stub. |
| Code& code = *reader->CodeHandle(); |
| code = TypeTestingStubGenerator::DefaultCodeForType(type_ref); |
| type_ref.SetTypeTestingStub(code); |
| |
| return type_ref.raw(); |
| } |
| |
| void RawTypeRef::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kTypeRefCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out all the object pointer fields. |
| SnapshotWriterVisitor visitor(writer, kAsReference); |
| visitor.VisitPointers(from(), to()); |
| } |
| |
| RawTypeParameter* TypeParameter::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Allocate type parameter object. |
| TypeParameter& type_parameter = |
| TypeParameter::ZoneHandle(reader->zone(), TypeParameter::New()); |
| reader->AddBackRef(object_id, &type_parameter, kIsDeserialized); |
| |
| // Set all non object fields. |
| type_parameter.set_token_pos( |
| TokenPosition::SnapshotDecode(reader->Read<int32_t>())); |
| type_parameter.set_index(reader->Read<int16_t>()); |
| type_parameter.set_flags(reader->Read<uint8_t>()); |
| |
| // Read the code object for the type testing stub and set its entrypoint. |
| reader->EnqueueTypePostprocessing(type_parameter); |
| |
| // Set all the object fields. |
| READ_OBJECT_FIELDS(type_parameter, type_parameter.raw()->from(), |
| type_parameter.raw()->to(), kAsReference); |
| |
| // Read in the parameterized class. |
| (*reader->ClassHandle()) = |
| Class::RawCast(reader->ReadObjectImpl(kAsReference)); |
| type_parameter.set_parameterized_class(*reader->ClassHandle()); |
| |
| // Fill in the type testing stub. |
| Code& code = *reader->CodeHandle(); |
| code = TypeTestingStubGenerator::DefaultCodeForType(type_parameter); |
| type_parameter.SetTypeTestingStub(code); |
| |
| return type_parameter.raw(); |
| } |
| |
| void RawTypeParameter::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Only finalized type parameters should be written to a snapshot. |
| ASSERT(FinalizedBit::decode(ptr()->flags_)); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kTypeParameterCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out all the non object pointer fields. |
| writer->Write<int32_t>(ptr()->token_pos_.SnapshotEncode()); |
| writer->Write<int16_t>(ptr()->index_); |
| writer->Write<uint8_t>(ptr()->flags_); |
| |
| // Write out all the object pointer fields. |
| SnapshotWriterVisitor visitor(writer, kAsReference); |
| visitor.VisitPointers(from(), to()); |
| |
| // Write out the parameterized class. |
| RawClass* param_class = |
| writer->isolate()->class_table()->At(ptr()->parameterized_class_id_); |
| writer->WriteObjectImpl(param_class, kAsReference); |
| } |
| |
| RawTypeArguments* TypeArguments::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Read the length so that we can determine instance size to allocate. |
| intptr_t len = reader->ReadSmiValue(); |
| |
| TypeArguments& type_arguments = |
| TypeArguments::ZoneHandle(reader->zone(), TypeArguments::New(len)); |
| bool is_canonical = RawObject::IsCanonical(tags); |
| reader->AddBackRef(object_id, &type_arguments, kIsDeserialized); |
| |
| // Set the instantiations field, which is only read from a full snapshot. |
| type_arguments.set_instantiations(Object::zero_array()); |
| |
| // Now set all the type fields. |
| for (intptr_t i = 0; i < len; i++) { |
| *reader->TypeHandle() ^= reader->ReadObjectImpl(as_reference); |
| type_arguments.SetTypeAt(i, *reader->TypeHandle()); |
| } |
| |
| // Set the canonical bit. |
| if (is_canonical) { |
| type_arguments ^= type_arguments.Canonicalize(); |
| } |
| |
| return type_arguments.raw(); |
| } |
| |
| void RawTypeArguments::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteVMIsolateObject(kTypeArgumentsCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out the length field. |
| writer->Write<RawObject*>(ptr()->length_); |
| |
| // Write out the individual types. |
| intptr_t len = Smi::Value(ptr()->length_); |
| for (intptr_t i = 0; i < len; i++) { |
| // The Dart VM reuses type argument lists across instances in order |
| // to reduce memory footprint, this can sometimes lead to a type from |
| // such a shared type argument list being sent over to another isolate. |
| // In such scenarios where it is not appropriate to send the types |
| // across (isolates spawned using spawnURI) we send them as dynamic. |
| if (!writer->can_send_any_object()) { |
| // Lookup the type class. |
| RawType* raw_type = Type::RawCast(ptr()->types()[i]); |
| RawSmi* raw_type_class_id = Smi::RawCast(raw_type->ptr()->type_class_id_); |
| RawClass* type_class = |
| writer->isolate()->class_table()->At(Smi::Value(raw_type_class_id)); |
| if (!writer->AllowObjectsInDartLibrary(type_class->ptr()->library_)) { |
| writer->WriteVMIsolateObject(kDynamicType); |
| } else { |
| writer->WriteObjectImpl(ptr()->types()[i], as_reference); |
| } |
| } else { |
| writer->WriteObjectImpl(ptr()->types()[i], as_reference); |
| } |
| } |
| } |
| |
| RawPatchClass* PatchClass::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return PatchClass::null(); |
| } |
| |
| void RawPatchClass::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawClosure* Closure::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return Closure::null(); |
| } |
| |
| void RawClosure::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| ASSERT(kind == Snapshot::kMessage); |
| |
| // Check if closure is serializable, throw an exception otherwise. |
| RawFunction* func = writer->IsSerializableClosure(this); |
| if (func != Function::null()) { |
| writer->WriteStaticImplicitClosure(object_id, func, |
| writer->GetObjectTags(this)); |
| return; |
| } |
| |
| UNREACHABLE(); |
| } |
| |
| RawClosureData* ClosureData::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return ClosureData::null(); |
| } |
| |
| void RawClosureData::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawSignatureData* SignatureData::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return SignatureData::null(); |
| } |
| |
| void RawSignatureData::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawRedirectionData* RedirectionData::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return RedirectionData::null(); |
| } |
| |
| void RawRedirectionData::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawFfiTrampolineData* FfiTrampolineData::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return FfiTrampolineData::null(); |
| } |
| |
| void RawFfiTrampolineData::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawFunction* Function::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return Function::null(); |
| } |
| |
| void RawFunction::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawField* Field::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return Field::null(); |
| } |
| |
| void RawField::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawScript* Script::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return Script::null(); |
| } |
| |
| void RawScript::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawLibrary* Library::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return Library::null(); |
| } |
| |
| void RawLibrary::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawLibraryPrefix* LibraryPrefix::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return LibraryPrefix::null(); |
| } |
| |
| void RawLibraryPrefix::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawNamespace* Namespace::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return Namespace::null(); |
| } |
| |
| void RawNamespace::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawKernelProgramInfo* KernelProgramInfo::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return KernelProgramInfo::null(); |
| } |
| |
| void RawKernelProgramInfo::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawCode* Code::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return Code::null(); |
| } |
| |
| void RawCode::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawBytecode* Bytecode::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return Bytecode::null(); |
| } |
| |
| void RawBytecode::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawInstructions* Instructions::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return Instructions::null(); |
| } |
| |
| void RawInstructions::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawObjectPool* ObjectPool::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return ObjectPool::null(); |
| } |
| |
| void RawObjectPool::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawPcDescriptors* PcDescriptors::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return PcDescriptors::null(); |
| } |
| |
| void RawPcDescriptors::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawCodeSourceMap* CodeSourceMap::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return CodeSourceMap::null(); |
| } |
| |
| void RawCodeSourceMap::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawStackMap* StackMap::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return StackMap::null(); |
| } |
| |
| void RawStackMap::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawLocalVarDescriptors* LocalVarDescriptors::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return LocalVarDescriptors::null(); |
| } |
| |
| void RawLocalVarDescriptors::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawExceptionHandlers* ExceptionHandlers::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return ExceptionHandlers::null(); |
| } |
| |
| void RawExceptionHandlers::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawContext* Context::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Allocate context object. |
| int32_t num_vars = reader->Read<int32_t>(); |
| Context& context = Context::ZoneHandle(reader->zone()); |
| reader->AddBackRef(object_id, &context, kIsDeserialized); |
| if (num_vars != 0) { |
| context ^= Context::New(num_vars); |
| |
| // Set all the object fields. |
| // TODO(5411462): Need to assert No GC can happen here, even though |
| // allocations may happen. |
| intptr_t num_flds = (context.raw()->to(num_vars) - context.raw()->from()); |
| for (intptr_t i = 0; i <= num_flds; i++) { |
| (*reader->PassiveObjectHandle()) = reader->ReadObjectImpl(kAsReference); |
| context.StorePointer((context.raw()->from() + i), |
| reader->PassiveObjectHandle()->raw()); |
| } |
| } |
| return context.raw(); |
| } |
| |
| void RawContext::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteVMIsolateObject(kContextCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out num of variables in the context. |
| int32_t num_variables = ptr()->num_variables_; |
| writer->Write<int32_t>(num_variables); |
| if (num_variables != 0) { |
| // Write out all the object pointer fields. |
| SnapshotWriterVisitor visitor(writer, kAsReference); |
| visitor.VisitPointers(from(), to(num_variables)); |
| } |
| } |
| |
| RawContextScope* ContextScope::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Allocate context object. |
| bool is_implicit = reader->Read<bool>(); |
| if (is_implicit) { |
| ContextScope& context_scope = ContextScope::ZoneHandle(reader->zone()); |
| context_scope = ContextScope::New(1, true); |
| reader->AddBackRef(object_id, &context_scope, kIsDeserialized); |
| |
| *reader->TypeHandle() ^= reader->ReadObjectImpl(kAsInlinedObject); |
| |
| // Create a descriptor for 'this' variable. |
| context_scope.SetTokenIndexAt(0, TokenPosition::kMinSource); |
| context_scope.SetDeclarationTokenIndexAt(0, TokenPosition::kMinSource); |
| context_scope.SetNameAt(0, Symbols::This()); |
| context_scope.SetIsFinalAt(0, true); |
| context_scope.SetIsConstAt(0, false); |
| context_scope.SetTypeAt(0, *reader->TypeHandle()); |
| context_scope.SetContextIndexAt(0, 0); |
| context_scope.SetContextLevelAt(0, 0); |
| return context_scope.raw(); |
| } |
| UNREACHABLE(); |
| return NULL; |
| } |
| |
| void RawContextScope::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| if (ptr()->is_implicit_) { |
| ASSERT(ptr()->num_variables_ == 1); |
| const VariableDesc* var = ptr()->VariableDescAddr(0); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteVMIsolateObject(kContextScopeCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out is_implicit flag for the context scope. |
| writer->Write<bool>(true); |
| |
| // Write out the type of 'this' the variable. |
| writer->WriteObjectImpl(var->type, kAsInlinedObject); |
| |
| return; |
| } |
| UNREACHABLE(); |
| } |
| |
| RawSingleTargetCache* SingleTargetCache::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return SingleTargetCache::null(); |
| } |
| |
| void RawSingleTargetCache::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawUnlinkedCall* UnlinkedCall::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return UnlinkedCall::null(); |
| } |
| |
| void RawUnlinkedCall::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawICData* ICData::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return ICData::null(); |
| } |
| |
| void RawICData::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawMegamorphicCache* MegamorphicCache::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return MegamorphicCache::null(); |
| } |
| |
| void RawMegamorphicCache::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawSubtypeTestCache* SubtypeTestCache::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return SubtypeTestCache::null(); |
| } |
| |
| void RawSubtypeTestCache::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawError* Error::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_referenec) { |
| UNREACHABLE(); |
| return Error::null(); // Error is an abstract class. |
| } |
| |
| void RawError::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); // Error is an abstract class. |
| } |
| |
| RawApiError* ApiError::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Allocate ApiError object. |
| ApiError& api_error = ApiError::ZoneHandle(reader->zone(), ApiError::New()); |
| reader->AddBackRef(object_id, &api_error, kIsDeserialized); |
| |
| // Set all the object fields. |
| READ_OBJECT_FIELDS(api_error, api_error.raw()->from(), api_error.raw()->to(), |
| kAsReference); |
| |
| return api_error.raw(); |
| } |
| |
| void RawApiError::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteVMIsolateObject(kApiErrorCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out all the object pointer fields. |
| SnapshotWriterVisitor visitor(writer, kAsReference); |
| visitor.VisitPointers(from(), to()); |
| } |
| |
| RawLanguageError* LanguageError::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Allocate LanguageError object. |
| LanguageError& language_error = |
| LanguageError::ZoneHandle(reader->zone(), LanguageError::New()); |
| reader->AddBackRef(object_id, &language_error, kIsDeserialized); |
| |
| // Set all non object fields. |
| language_error.set_token_pos( |
| TokenPosition::SnapshotDecode(reader->Read<int32_t>())); |
| language_error.set_report_after_token(reader->Read<bool>()); |
| language_error.set_kind(reader->Read<uint8_t>()); |
| |
| // Set all the object fields. |
| READ_OBJECT_FIELDS(language_error, language_error.raw()->from(), |
| language_error.raw()->to(), kAsReference); |
| |
| return language_error.raw(); |
| } |
| |
| void RawLanguageError::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteVMIsolateObject(kLanguageErrorCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out all the non object fields. |
| writer->Write<int32_t>(ptr()->token_pos_.SnapshotEncode()); |
| writer->Write<bool>(ptr()->report_after_token_); |
| writer->Write<uint8_t>(ptr()->kind_); |
| |
| // Write out all the object pointer fields. |
| SnapshotWriterVisitor visitor(writer, kAsReference); |
| visitor.VisitPointers(from(), to()); |
| } |
| |
| RawUnhandledException* UnhandledException::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UnhandledException& result = |
| UnhandledException::ZoneHandle(reader->zone(), UnhandledException::New()); |
| reader->AddBackRef(object_id, &result, kIsDeserialized); |
| |
| // Set all the object fields. |
| READ_OBJECT_FIELDS(result, result.raw()->from(), result.raw()->to(), |
| kAsReference); |
| |
| return result.raw(); |
| } |
| |
| void RawUnhandledException::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteVMIsolateObject(kUnhandledExceptionCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| // Write out all the object pointer fields. |
| SnapshotWriterVisitor visitor(writer, kAsReference); |
| visitor.VisitPointers(from(), to()); |
| } |
| |
| RawUnwindError* UnwindError::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return UnwindError::null(); |
| } |
| |
| void RawUnwindError::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawInstance* Instance::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Create an Instance object or get canonical one if it is a canonical |
| // constant. |
| Instance& obj = Instance::ZoneHandle(reader->zone(), Instance::null()); |
| obj ^= Object::Allocate(kInstanceCid, Instance::InstanceSize(), Heap::kNew); |
| if (RawObject::IsCanonical(tags)) { |
| const char* error_str = NULL; |
| obj = obj.CheckAndCanonicalize(reader->thread(), &error_str); |
| if (error_str != NULL) { |
| FATAL1("Failed to canonicalize: %s", error_str); |
| } |
| } |
| reader->AddBackRef(object_id, &obj, kIsDeserialized); |
| |
| return obj.raw(); |
| } |
| |
| void RawInstance::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kInstanceCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| } |
| |
| RawInteger* Mint::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Read the 64 bit value for the object. |
| int64_t value = reader->Read<int64_t>(); |
| |
| // Check if the value could potentially fit in a Smi in our current |
| // architecture, if so return the object as a Smi. |
| if (Smi::IsValid(value)) { |
| Smi& smi = |
| Smi::ZoneHandle(reader->zone(), Smi::New(static_cast<intptr_t>(value))); |
| reader->AddBackRef(object_id, &smi, kIsDeserialized); |
| return smi.raw(); |
| } |
| |
| // Create a Mint object or get canonical one if it is a canonical constant. |
| Mint& mint = Mint::ZoneHandle(reader->zone(), Mint::null()); |
| // When reading a script snapshot we need to canonicalize only those object |
| // references that are objects from the core library (loaded from a |
| // full snapshot). Objects that are only in the script need not be |
| // canonicalized as they are already canonical. |
| // When reading a message snapshot we always have to canonicalize. |
| if (RawObject::IsCanonical(tags)) { |
| mint = Mint::NewCanonical(value); |
| ASSERT(mint.IsCanonical()); |
| } else { |
| mint = Mint::New(value); |
| } |
| reader->AddBackRef(object_id, &mint, kIsDeserialized); |
| return mint.raw(); |
| } |
| |
| void RawMint::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kMintCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out the 64 bit value. |
| writer->Write<int64_t>(ptr()->value_); |
| } |
| |
| RawDouble* Double::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| ASSERT(kind != Snapshot::kMessage); |
| // Read the double value for the object. |
| double value = reader->ReadDouble(); |
| |
| // Create a Double object or get canonical one if it is a canonical constant. |
| Double& dbl = Double::ZoneHandle(reader->zone(), Double::null()); |
| // When reading a script snapshot we need to canonicalize only those object |
| // references that are objects from the core library (loaded from a |
| // full snapshot). Objects that are only in the script need not be |
| // canonicalized as they are already canonical. |
| if (RawObject::IsCanonical(tags)) { |
| dbl = Double::NewCanonical(value); |
| ASSERT(dbl.IsCanonical()); |
| } else { |
| dbl = Double::New(value); |
| } |
| reader->AddBackRef(object_id, &dbl, kIsDeserialized); |
| return dbl.raw(); |
| } |
| |
| void RawDouble::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kDoubleCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out the double value. |
| writer->WriteDouble(ptr()->value_); |
| } |
| |
| RawString* String::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); // String is an abstract class. |
| return String::null(); |
| } |
| |
| void RawString::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); // String is an abstract class. |
| } |
| |
| template <typename StringType, typename CharacterType, typename CallbackType> |
| void String::ReadFromImpl(SnapshotReader* reader, |
| String* str_obj, |
| intptr_t len, |
| intptr_t tags, |
| CallbackType new_symbol, |
| Snapshot::Kind kind) { |
| ASSERT(reader != NULL); |
| if (RawObject::IsCanonical(tags)) { |
| // Set up canonical string object. |
| ASSERT(reader != NULL); |
| CharacterType* ptr = reader->zone()->Alloc<CharacterType>(len); |
| for (intptr_t i = 0; i < len; i++) { |
| ptr[i] = reader->Read<CharacterType>(); |
| } |
| *str_obj ^= (*new_symbol)(reader->thread(), ptr, len); |
| } else { |
| // Set up the string object. |
| *str_obj = StringType::New(len, Heap::kNew); |
| str_obj->SetHash(0); // Will get computed when needed. |
| if (len == 0) { |
| return; |
| } |
| NoSafepointScope no_safepoint; |
| CharacterType* str_addr = StringType::DataStart(*str_obj); |
| for (intptr_t i = 0; i < len; i++) { |
| *str_addr = reader->Read<CharacterType>(); |
| str_addr++; |
| } |
| } |
| } |
| |
| RawOneByteString* OneByteString::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| // Read the length so that we can determine instance size to allocate. |
| ASSERT(reader != NULL); |
| intptr_t len = reader->ReadSmiValue(); |
| String& str_obj = String::ZoneHandle(reader->zone(), String::null()); |
| |
| String::ReadFromImpl<OneByteString, uint8_t>(reader, &str_obj, len, tags, |
| Symbols::FromLatin1, kind); |
| reader->AddBackRef(object_id, &str_obj, kIsDeserialized); |
| return raw(str_obj); |
| } |
| |
| RawTwoByteString* TwoByteString::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| // Read the length so that we can determine instance size to allocate. |
| ASSERT(reader != NULL); |
| intptr_t len = reader->ReadSmiValue(); |
| String& str_obj = String::ZoneHandle(reader->zone(), String::null()); |
| |
| String::ReadFromImpl<TwoByteString, uint16_t>(reader, &str_obj, len, tags, |
| Symbols::FromUTF16, kind); |
| reader->AddBackRef(object_id, &str_obj, kIsDeserialized); |
| return raw(str_obj); |
| } |
| |
| template <typename T> |
| static void StringWriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| intptr_t class_id, |
| intptr_t tags, |
| RawSmi* length, |
| T* data) { |
| ASSERT(writer != NULL); |
| intptr_t len = Smi::Value(length); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(class_id); |
| writer->WriteTags(tags); |
| |
| // Write out the length field. |
| writer->Write<RawObject*>(length); |
| |
| // Write out the string. |
| if (len > 0) { |
| if (class_id == kOneByteStringCid) { |
| writer->WriteBytes(reinterpret_cast<const uint8_t*>(data), len); |
| } else { |
| for (intptr_t i = 0; i < len; i++) { |
| writer->Write(data[i]); |
| } |
| } |
| } |
| } |
| |
| void RawOneByteString::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| StringWriteTo(writer, object_id, kind, kOneByteStringCid, |
| writer->GetObjectTags(this), ptr()->length_, ptr()->data()); |
| } |
| |
| void RawTwoByteString::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| StringWriteTo(writer, object_id, kind, kTwoByteStringCid, |
| writer->GetObjectTags(this), ptr()->length_, ptr()->data()); |
| } |
| |
| RawExternalOneByteString* ExternalOneByteString::ReadFrom( |
| SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return ExternalOneByteString::null(); |
| } |
| |
| RawExternalTwoByteString* ExternalTwoByteString::ReadFrom( |
| SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return ExternalTwoByteString::null(); |
| } |
| |
| void RawExternalOneByteString::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| // Serialize as a non-external one byte string. |
| StringWriteTo(writer, object_id, kind, kOneByteStringCid, |
| writer->GetObjectTags(this), ptr()->length_, |
| ptr()->external_data_); |
| } |
| |
| void RawExternalTwoByteString::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| // Serialize as a non-external two byte string. |
| StringWriteTo(writer, object_id, kind, kTwoByteStringCid, |
| writer->GetObjectTags(this), ptr()->length_, |
| ptr()->external_data_); |
| } |
| |
| RawBool* Bool::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return Bool::null(); |
| } |
| |
| void RawBool::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| } |
| |
| RawArray* Array::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Read the length so that we can determine instance size to allocate. |
| intptr_t len = reader->ReadSmiValue(); |
| Array* array = NULL; |
| DeserializeState state; |
| if (!as_reference) { |
| array = reinterpret_cast<Array*>(reader->GetBackRef(object_id)); |
| state = kIsDeserialized; |
| } else { |
| state = kIsNotDeserialized; |
| } |
| if (array == NULL) { |
| array = &(Array::ZoneHandle(reader->zone(), Array::New(len))); |
| reader->AddBackRef(object_id, array, state); |
| } |
| if (!as_reference) { |
| // Read all the individual elements for inlined objects. |
| ASSERT(!RawObject::IsCanonical(tags)); |
| reader->ArrayReadFrom(object_id, *array, len, tags); |
| } |
| return array->raw(); |
| } |
| |
| RawImmutableArray* ImmutableArray::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Read the length so that we can determine instance size to allocate. |
| intptr_t len = reader->ReadSmiValue(); |
| Array* array = NULL; |
| DeserializeState state; |
| if (!as_reference) { |
| array = reinterpret_cast<Array*>(reader->GetBackRef(object_id)); |
| state = kIsDeserialized; |
| } else { |
| state = kIsNotDeserialized; |
| } |
| if (array == NULL) { |
| array = &(Array::ZoneHandle(reader->zone(), ImmutableArray::New(len))); |
| reader->AddBackRef(object_id, array, state); |
| } |
| if (!as_reference) { |
| // Read all the individual elements for inlined objects. |
| reader->ArrayReadFrom(object_id, *array, len, tags); |
| if (RawObject::IsCanonical(tags)) { |
| const char* error_str = NULL; |
| *array ^= array->CheckAndCanonicalize(reader->thread(), &error_str); |
| if (error_str != NULL) { |
| FATAL1("Failed to canonicalize: %s", error_str); |
| } |
| } |
| } |
| return raw(*array); |
| } |
| |
| void RawArray::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(!this->IsCanonical()); |
| writer->ArrayWriteTo(object_id, kArrayCid, writer->GetObjectTags(this), |
| ptr()->length_, ptr()->type_arguments_, ptr()->data(), |
| as_reference); |
| } |
| |
| void RawImmutableArray::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| writer->ArrayWriteTo(object_id, kImmutableArrayCid, |
| writer->GetObjectTags(this), ptr()->length_, |
| ptr()->type_arguments_, ptr()->data(), as_reference); |
| } |
| |
| RawGrowableObjectArray* GrowableObjectArray::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Read the length so that we can determine instance size to allocate. |
| GrowableObjectArray& array = GrowableObjectArray::ZoneHandle( |
| reader->zone(), GrowableObjectArray::null()); |
| array = GrowableObjectArray::New(0); |
| reader->AddBackRef(object_id, &array, kIsDeserialized); |
| |
| // Read type arguments of growable array object. |
| *reader->TypeArgumentsHandle() ^= reader->ReadObjectImpl(kAsInlinedObject); |
| array.StorePointer(&array.raw_ptr()->type_arguments_, |
| reader->TypeArgumentsHandle()->raw()); |
| |
| // Read length of growable array object. |
| array.SetLength(reader->ReadSmiValue()); |
| |
| // Read the backing array of growable array object. |
| *(reader->ArrayHandle()) ^= reader->ReadObjectImpl(kAsReference); |
| array.SetData(*(reader->ArrayHandle())); |
| |
| return array.raw(); |
| } |
| |
| void RawGrowableObjectArray::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kGrowableObjectArrayCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out the type arguments field. |
| writer->WriteObjectImpl(ptr()->type_arguments_, kAsInlinedObject); |
| |
| // Write out the used length field. |
| writer->Write<RawObject*>(ptr()->length_); |
| |
| // Write out the Array object. |
| writer->WriteObjectImpl(ptr()->data_, kAsReference); |
| } |
| |
| RawLinkedHashMap* LinkedHashMap::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| LinkedHashMap& map = |
| LinkedHashMap::ZoneHandle(reader->zone(), LinkedHashMap::null()); |
| // Since the map might contain itself as a key or value, allocate first. |
| map = LinkedHashMap::NewUninitialized(); |
| reader->AddBackRef(object_id, &map, kIsDeserialized); |
| |
| // Read the type arguments. |
| *reader->TypeArgumentsHandle() ^= reader->ReadObjectImpl(kAsInlinedObject); |
| map.SetTypeArguments(*reader->TypeArgumentsHandle()); |
| |
| // Read the number of key/value pairs. |
| intptr_t len = reader->ReadSmiValue(); |
| intptr_t used_data = (len << 1); |
| map.SetUsedData(used_data); |
| |
| // Allocate the data array. |
| intptr_t data_size = |
| Utils::Maximum(Utils::RoundUpToPowerOfTwo(used_data), |
| static_cast<uintptr_t>(LinkedHashMap::kInitialIndexSize)); |
| Array& data = Array::ZoneHandle(reader->zone(), Array::New(data_size)); |
| map.SetData(data); |
| map.SetDeletedKeys(0); |
| |
| // The index and hashMask is regenerated by the maps themselves on demand. |
| // Thus, the index will probably be allocated in new space (unless it's huge). |
| // TODO(koda): Eagerly rehash here when no keys have user-defined '==', and |
| // in particular, if/when (const) maps are needed in the VM isolate snapshot. |
| ASSERT(reader->isolate() != Dart::vm_isolate()); |
| map.SetHashMask(0); // Prefer sentinel 0 over null for better type feedback. |
| |
| reader->EnqueueRehashingOfMap(map); |
| |
| // Read the keys and values. |
| bool read_as_reference = RawObject::IsCanonical(tags) ? false : true; |
| for (intptr_t i = 0; i < used_data; i++) { |
| *reader->PassiveObjectHandle() = reader->ReadObjectImpl(read_as_reference); |
| data.SetAt(i, *reader->PassiveObjectHandle()); |
| } |
| return map.raw(); |
| } |
| |
| void RawLinkedHashMap::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kLinkedHashMapCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out the type arguments. |
| writer->WriteObjectImpl(ptr()->type_arguments_, kAsInlinedObject); |
| |
| const intptr_t used_data = Smi::Value(ptr()->used_data_); |
| ASSERT((used_data & 1) == 0); // Keys + values, so must be even. |
| const intptr_t deleted_keys = Smi::Value(ptr()->deleted_keys_); |
| |
| // Write out the number of (not deleted) key/value pairs that will follow. |
| writer->Write<RawObject*>(Smi::New((used_data >> 1) - deleted_keys)); |
| |
| // Write out the keys and values. |
| const bool write_as_reference = this->IsCanonical() ? false : true; |
| RawArray* data_array = ptr()->data_; |
| RawObject** data_elements = data_array->ptr()->data(); |
| ASSERT(used_data <= Smi::Value(data_array->ptr()->length_)); |
| #if defined(DEBUG) |
| intptr_t deleted_keys_found = 0; |
| #endif // DEBUG |
| for (intptr_t i = 0; i < used_data; i += 2) { |
| RawObject* key = data_elements[i]; |
| if (key == data_array) { |
| #if defined(DEBUG) |
| ++deleted_keys_found; |
| #endif // DEBUG |
| continue; |
| } |
| RawObject* value = data_elements[i + 1]; |
| writer->WriteObjectImpl(key, write_as_reference); |
| writer->WriteObjectImpl(value, write_as_reference); |
| } |
| DEBUG_ASSERT(deleted_keys_found == deleted_keys); |
| } |
| |
| RawFloat32x4* Float32x4::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| // Read the values. |
| float value0 = reader->Read<float>(); |
| float value1 = reader->Read<float>(); |
| float value2 = reader->Read<float>(); |
| float value3 = reader->Read<float>(); |
| |
| // Create a Float32x4 object. |
| Float32x4& simd = Float32x4::ZoneHandle(reader->zone(), Float32x4::null()); |
| simd = Float32x4::New(value0, value1, value2, value3); |
| reader->AddBackRef(object_id, &simd, kIsDeserialized); |
| return simd.raw(); |
| } |
| |
| void RawFloat32x4::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kFloat32x4Cid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out the float values. |
| writer->Write<float>(ptr()->value_[0]); |
| writer->Write<float>(ptr()->value_[1]); |
| writer->Write<float>(ptr()->value_[2]); |
| writer->Write<float>(ptr()->value_[3]); |
| } |
| |
| RawInt32x4* Int32x4::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| // Read the values. |
| uint32_t value0 = reader->Read<uint32_t>(); |
| uint32_t value1 = reader->Read<uint32_t>(); |
| uint32_t value2 = reader->Read<uint32_t>(); |
| uint32_t value3 = reader->Read<uint32_t>(); |
| |
| // Create a Float32x4 object. |
| Int32x4& simd = Int32x4::ZoneHandle(reader->zone(), Int32x4::null()); |
| simd = Int32x4::New(value0, value1, value2, value3); |
| reader->AddBackRef(object_id, &simd, kIsDeserialized); |
| return simd.raw(); |
| } |
| |
| void RawInt32x4::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kInt32x4Cid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out the mask values. |
| writer->Write<uint32_t>(ptr()->value_[0]); |
| writer->Write<uint32_t>(ptr()->value_[1]); |
| writer->Write<uint32_t>(ptr()->value_[2]); |
| writer->Write<uint32_t>(ptr()->value_[3]); |
| } |
| |
| RawFloat64x2* Float64x2::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| // Read the values. |
| double value0 = reader->Read<double>(); |
| double value1 = reader->Read<double>(); |
| |
| // Create a Float64x2 object. |
| Float64x2& simd = Float64x2::ZoneHandle(reader->zone(), Float64x2::null()); |
| simd = Float64x2::New(value0, value1); |
| reader->AddBackRef(object_id, &simd, kIsDeserialized); |
| return simd.raw(); |
| } |
| |
| void RawFloat64x2::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kFloat64x2Cid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out the float values. |
| writer->Write<double>(ptr()->value_[0]); |
| writer->Write<double>(ptr()->value_[1]); |
| } |
| |
| RawTypedData* TypedData::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| intptr_t cid = RawObject::ClassIdTag::decode(tags); |
| intptr_t len = reader->ReadSmiValue(); |
| TypedData& result = |
| TypedData::ZoneHandle(reader->zone(), TypedData::New(cid, len)); |
| reader->AddBackRef(object_id, &result, kIsDeserialized); |
| |
| // Setup the array elements. |
| intptr_t element_size = ElementSizeInBytes(cid); |
| intptr_t length_in_bytes = len * element_size; |
| NoSafepointScope no_safepoint; |
| uint8_t* data = reinterpret_cast<uint8_t*>(result.DataAddr(0)); |
| reader->ReadBytes(data, length_in_bytes); |
| |
| // If it is a canonical constant make it one. |
| // When reading a full snapshot we don't need to canonicalize the object |
| // as it would already be a canonical object. |
| // When reading a script snapshot or a message snapshot we always have |
| // to canonicalize the object. |
| if (RawObject::IsCanonical(tags)) { |
| const char* error_str = NULL; |
| result ^= result.CheckAndCanonicalize(reader->thread(), &error_str); |
| if (error_str != NULL) { |
| FATAL1("Failed to canonicalize: %s", error_str); |
| } |
| ASSERT(!result.IsNull()); |
| ASSERT(result.IsCanonical()); |
| } |
| return result.raw(); |
| } |
| |
| RawExternalTypedData* ExternalTypedData::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(!Snapshot::IsFull(kind)); |
| intptr_t cid = RawObject::ClassIdTag::decode(tags); |
| intptr_t length = reader->ReadSmiValue(); |
| |
| FinalizableData finalizable_data = |
| static_cast<MessageSnapshotReader*>(reader)->finalizable_data()->Take(); |
| uint8_t* data = reinterpret_cast<uint8_t*>(finalizable_data.data); |
| ExternalTypedData& obj = |
| ExternalTypedData::ZoneHandle(ExternalTypedData::New(cid, data, length)); |
| reader->AddBackRef(object_id, &obj, kIsDeserialized); |
| intptr_t external_size = obj.LengthInBytes(); |
| obj.AddFinalizer(finalizable_data.peer, finalizable_data.callback, |
| external_size); |
| return obj.raw(); |
| } |
| |
| // This function's name can appear in Observatory. |
| static void IsolateMessageTypedDataFinalizer(void* isolate_callback_data, |
| Dart_WeakPersistentHandle handle, |
| void* buffer) { |
| free(buffer); |
| } |
| |
| void RawTypedData::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| intptr_t cid = this->GetClassId(); |
| intptr_t length = Smi::Value(ptr()->length_); // In elements. |
| intptr_t external_cid; |
| intptr_t bytes; |
| switch (cid) { |
| case kTypedDataInt8ArrayCid: |
| external_cid = kExternalTypedDataInt8ArrayCid; |
| bytes = length * sizeof(int8_t); |
| break; |
| case kTypedDataUint8ArrayCid: |
| external_cid = kExternalTypedDataUint8ArrayCid; |
| bytes = length * sizeof(uint8_t); |
| break; |
| case kTypedDataUint8ClampedArrayCid: |
| external_cid = kExternalTypedDataUint8ClampedArrayCid; |
| bytes = length * sizeof(uint8_t); |
| break; |
| case kTypedDataInt16ArrayCid: |
| external_cid = kExternalTypedDataInt16ArrayCid; |
| bytes = length * sizeof(int16_t); |
| break; |
| case kTypedDataUint16ArrayCid: |
| external_cid = kExternalTypedDataUint16ArrayCid; |
| bytes = length * sizeof(uint16_t); |
| break; |
| case kTypedDataInt32ArrayCid: |
| external_cid = kExternalTypedDataInt32ArrayCid; |
| bytes = length * sizeof(int32_t); |
| break; |
| case kTypedDataUint32ArrayCid: |
| external_cid = kExternalTypedDataUint32ArrayCid; |
| bytes = length * sizeof(uint32_t); |
| break; |
| case kTypedDataInt64ArrayCid: |
| external_cid = kExternalTypedDataInt64ArrayCid; |
| bytes = length * sizeof(int64_t); |
| break; |
| case kTypedDataUint64ArrayCid: |
| external_cid = kExternalTypedDataUint64ArrayCid; |
| bytes = length * sizeof(uint64_t); |
| break; |
| case kTypedDataFloat32ArrayCid: |
| external_cid = kExternalTypedDataFloat32ArrayCid; |
| bytes = length * sizeof(float); |
| break; |
| case kTypedDataFloat64ArrayCid: |
| external_cid = kExternalTypedDataFloat64ArrayCid; |
| bytes = length * sizeof(double); |
| break; |
| case kTypedDataInt32x4ArrayCid: |
| external_cid = kExternalTypedDataInt32x4ArrayCid; |
| bytes = length * sizeof(int32_t) * 4; |
| break; |
| case kTypedDataFloat32x4ArrayCid: |
| external_cid = kExternalTypedDataFloat32x4ArrayCid; |
| bytes = length * sizeof(float) * 4; |
| break; |
| case kTypedDataFloat64x2ArrayCid: |
| external_cid = kExternalTypedDataFloat64x2ArrayCid; |
| bytes = length * sizeof(double) * 2; |
| break; |
| default: |
| external_cid = kIllegalCid; |
| bytes = 0; |
| UNREACHABLE(); |
| } |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| if ((kind == Snapshot::kMessage) && |
| (static_cast<uint64_t>(bytes) >= FLAG_externalize_typed_data_threshold)) { |
| // Write as external. |
| writer->WriteIndexedObject(external_cid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| writer->Write<RawObject*>(ptr()->length_); |
| uint8_t* data = reinterpret_cast<uint8_t*>(ptr()->data()); |
| void* passed_data = malloc(bytes); |
| if (passed_data == NULL) { |
| OUT_OF_MEMORY(); |
| } |
| memmove(passed_data, data, bytes); |
| static_cast<MessageWriter*>(writer)->finalizable_data()->Put( |
| bytes, |
| passed_data, // data |
| passed_data, // peer, |
| IsolateMessageTypedDataFinalizer); |
| } else { |
| // Write as internal. |
| writer->WriteIndexedObject(cid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| writer->Write<RawObject*>(ptr()->length_); |
| uint8_t* data = reinterpret_cast<uint8_t*>(ptr()->data()); |
| writer->WriteBytes(data, bytes); |
| } |
| } |
| |
| void RawExternalTypedData::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| intptr_t cid = this->GetClassId(); |
| intptr_t length = Smi::Value(ptr()->length_); // In elements. |
| intptr_t bytes; |
| switch (cid) { |
| case kExternalTypedDataInt8ArrayCid: |
| bytes = length * sizeof(int8_t); |
| break; |
| case kExternalTypedDataUint8ArrayCid: |
| bytes = length * sizeof(uint8_t); |
| break; |
| case kExternalTypedDataUint8ClampedArrayCid: |
| bytes = length * sizeof(uint8_t); |
| break; |
| case kExternalTypedDataInt16ArrayCid: |
| bytes = length * sizeof(int16_t); |
| break; |
| case kExternalTypedDataUint16ArrayCid: |
| bytes = length * sizeof(uint16_t); |
| break; |
| case kExternalTypedDataInt32ArrayCid: |
| bytes = length * sizeof(int32_t); |
| break; |
| case kExternalTypedDataUint32ArrayCid: |
| bytes = length * sizeof(uint32_t); |
| break; |
| case kExternalTypedDataInt64ArrayCid: |
| bytes = length * sizeof(int64_t); |
| break; |
| case kExternalTypedDataUint64ArrayCid: |
| bytes = length * sizeof(uint64_t); |
| break; |
| case kExternalTypedDataFloat32ArrayCid: |
| bytes = length * sizeof(float); // NOLINT. |
| break; |
| case kExternalTypedDataFloat64ArrayCid: |
| bytes = length * sizeof(double); // NOLINT. |
| break; |
| case kExternalTypedDataInt32x4ArrayCid: |
| bytes = length * sizeof(int32_t) * 4; |
| break; |
| case kExternalTypedDataFloat32x4ArrayCid: |
| bytes = length * sizeof(float) * 4; |
| break; |
| case kExternalTypedDataFloat64x2ArrayCid: |
| bytes = length * sizeof(double) * 2; |
| break; |
| default: |
| bytes = 0; |
| UNREACHABLE(); |
| } |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write as external. |
| writer->WriteIndexedObject(cid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| writer->Write<RawObject*>(ptr()->length_); |
| uint8_t* data = reinterpret_cast<uint8_t*>(ptr()->data_); |
| void* passed_data = malloc(bytes); |
| if (passed_data == NULL) { |
| OUT_OF_MEMORY(); |
| } |
| memmove(passed_data, data, bytes); |
| static_cast<MessageWriter*>(writer)->finalizable_data()->Put( |
| bytes, |
| passed_data, // data |
| passed_data, // peer, |
| IsolateMessageTypedDataFinalizer); |
| } |
| |
| RawPointer* Pointer::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| FATAL("Snapshotting Pointers is not supported"); |
| UNREACHABLE(); |
| } |
| |
| void RawPointer::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| FATAL("Snapshotting Pointers is not supported"); |
| } |
| |
| RawDynamicLibrary* DynamicLibrary::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| FATAL("Snapshotting DynamicLibraries is not supported"); |
| UNREACHABLE(); |
| } |
| |
| void RawDynamicLibrary::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| FATAL("Snapshotting DynamicLibraries is not supported"); |
| } |
| |
| RawCapability* Capability::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| uint64_t id = reader->Read<uint64_t>(); |
| |
| Capability& result = |
| Capability::ZoneHandle(reader->zone(), Capability::New(id)); |
| reader->AddBackRef(object_id, &result, kIsDeserialized); |
| return result.raw(); |
| } |
| |
| void RawCapability::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kCapabilityCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| writer->Write<uint64_t>(ptr()->id_); |
| } |
| |
| RawReceivePort* ReceivePort::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return ReceivePort::null(); |
| } |
| |
| void RawReceivePort::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| if (kind == Snapshot::kMessage) { |
| // We do not allow objects with native fields in an isolate message. |
| writer->SetWriteException(Exceptions::kArgument, |
| "Illegal argument in isolate message" |
| " : (object is a RawReceivePort)"); |
| } else { |
| UNREACHABLE(); |
| } |
| } |
| |
| RawSendPort* SendPort::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(kind == Snapshot::kMessage); |
| |
| uint64_t id = reader->Read<uint64_t>(); |
| uint64_t origin_id = reader->Read<uint64_t>(); |
| |
| SendPort& result = |
| SendPort::ZoneHandle(reader->zone(), SendPort::New(id, origin_id)); |
| reader->AddBackRef(object_id, &result, kIsDeserialized); |
| return result.raw(); |
| } |
| |
| void RawSendPort::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kSendPortCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| writer->Write<uint64_t>(ptr()->id_); |
| writer->Write<uint64_t>(ptr()->origin_id_); |
| } |
| |
| RawStackTrace* StackTrace::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); // StackTraces are not sent in a snapshot. |
| return StackTrace::null(); |
| } |
| |
| void RawStackTrace::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(kind == Snapshot::kMessage); |
| writer->SetWriteException(Exceptions::kArgument, |
| "Illegal argument in isolate message" |
| " : (object is a stacktrace)"); |
| } |
| |
| RawRegExp* RegExp::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Allocate RegExp object. |
| RegExp& regex = RegExp::ZoneHandle(reader->zone(), RegExp::New()); |
| reader->AddBackRef(object_id, ®ex, kIsDeserialized); |
| |
| // Read and Set all the other fields. |
| regex.StoreSmi(®ex.raw_ptr()->num_bracket_expressions_, |
| reader->ReadAsSmi()); |
| *reader->StringHandle() ^= reader->ReadObjectImpl(kAsInlinedObject); |
| regex.set_pattern(*reader->StringHandle()); |
| regex.StoreNonPointer(®ex.raw_ptr()->num_registers_, |
| reader->Read<int32_t>()); |
| regex.StoreNonPointer(®ex.raw_ptr()->type_flags_, reader->Read<int8_t>()); |
| |
| const Function& no_function = Function::Handle(reader->zone()); |
| for (intptr_t cid = kOneByteStringCid; cid <= kExternalTwoByteStringCid; |
| cid++) { |
| regex.set_function(cid, /*sticky=*/false, no_function); |
| regex.set_function(cid, /*sticky=*/true, no_function); |
| } |
| |
| return regex.raw(); |
| } |
| |
| void RawRegExp::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kRegExpCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out all the other fields. |
| writer->Write<RawObject*>(ptr()->num_bracket_expressions_); |
| writer->WriteObjectImpl(ptr()->pattern_, kAsInlinedObject); |
| writer->Write<int32_t>(ptr()->num_registers_); |
| writer->Write<int8_t>(ptr()->type_flags_); |
| } |
| |
| RawWeakProperty* WeakProperty::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(reader != NULL); |
| |
| // Allocate the weak property object. |
| WeakProperty& weak_property = |
| WeakProperty::ZoneHandle(reader->zone(), WeakProperty::New()); |
| reader->AddBackRef(object_id, &weak_property, kIsDeserialized); |
| |
| // Set all the object fields. |
| READ_OBJECT_FIELDS(weak_property, weak_property.raw()->from(), |
| weak_property.raw()->to(), kAsReference); |
| |
| return weak_property.raw(); |
| } |
| |
| void RawWeakProperty::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| ASSERT(writer != NULL); |
| |
| // Write out the serialization header value for this object. |
| writer->WriteInlinedObjectHeader(object_id); |
| |
| // Write out the class and tags information. |
| writer->WriteIndexedObject(kWeakPropertyCid); |
| writer->WriteTags(writer->GetObjectTags(this)); |
| |
| // Write out all the object pointer fields. |
| SnapshotWriterVisitor visitor(writer, kAsReference); |
| visitor.VisitPointers(from(), to()); |
| } |
| |
| RawMirrorReference* MirrorReference::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_referenec) { |
| UNREACHABLE(); |
| return MirrorReference::null(); |
| } |
| |
| void RawMirrorReference::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| if (kind == Snapshot::kMessage) { |
| // We do not allow objects with native fields in an isolate message. |
| writer->SetWriteException(Exceptions::kArgument, |
| "Illegal argument in isolate message" |
| " : (object is a MirrorReference)"); |
| } else { |
| UNREACHABLE(); |
| } |
| } |
| |
| RawUserTag* UserTag::ReadFrom(SnapshotReader* reader, |
| intptr_t object_id, |
| intptr_t tags, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| UNREACHABLE(); |
| return UserTag::null(); |
| } |
| |
| void RawUserTag::WriteTo(SnapshotWriter* writer, |
| intptr_t object_id, |
| Snapshot::Kind kind, |
| bool as_reference) { |
| if (kind == Snapshot::kMessage) { |
| // We do not allow objects with native fields in an isolate message. |
| writer->SetWriteException(Exceptions::kArgument, |
| "Illegal argument in isolate message" |
| " : (object is a UserTag)"); |
| } else { |
| UNREACHABLE(); |
| } |
| } |
| |
| } // namespace dart |
