Do not try to serialize VM objects, these are read only canonical objects and should be referred to…

vm/raw_object_snapshot.cc

 // 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/bigint_operations.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/snapshot.h"
 #include "vm/symbols.h"
 #include "vm/visitor.h"
@@ skipping 63 matching lines @@
   return cls.raw();
 }
 
 
 void RawClass::WriteTo(SnapshotWriter* writer,
                        intptr_t object_id,
                        Snapshot::Kind kind) {
   ASSERT(writer != NULL);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   if ((kind == Snapshot::kFull) ||
       (kind == Snapshot::kScript &&
        !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this)))) {
     // Write out the class and tags information.
-    writer->WriteObjectHeader(Object::kClassClass, writer->GetObjectTags(this));
+    writer->WriteVMIsolateObject(Object::kClassClass);
+    writer->WriteIntptrValue(writer->GetObjectTags(this));
 
     // Write out all the non object pointer fields.
     // NOTE: cpp_vtable_ is not written.
     writer->Write<ObjectKind>(ptr()->instance_kind_);
     writer->WriteIntptrValue(ptr()->instance_size_);
     writer->WriteIntptrValue(ptr()->type_arguments_instance_field_offset_);
     writer->WriteIntptrValue(ptr()->next_field_offset_);
     writer->WriteIntptrValue(ptr()->num_native_fields_);
     writer->WriteIntptrValue(ptr()->token_pos_);
     writer->Write<int8_t>(ptr()->class_state_);
@@ skipping 37 matching lines @@
   return unresolved_class.raw();
 }
 
 
 void RawUnresolvedClass::WriteTo(SnapshotWriter* writer,
                                  intptr_t object_id,
                                  Snapshot::Kind kind) {
   ASSERT(writer != NULL);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kUnresolvedClassClass,
-                            writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kUnresolvedClassClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the non object pointer fields.
   writer->WriteIntptrValue(ptr()->token_pos_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to());
 }
 
 
@@ skipping 47 matching lines @@
   return parameterized_type.raw();
 }
 
 
 void RawType::WriteTo(SnapshotWriter* writer,
                       intptr_t object_id,
                       Snapshot::Kind kind) {
   ASSERT(writer != NULL);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kTypeClass, writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kTypeClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the non object pointer fields.
   writer->WriteIntptrValue(ptr()->token_pos_);
   writer->Write<int8_t>(ptr()->type_state_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer, false);
   visitor.VisitPointers(from(), to());
 }
 
@@ skipping 29 matching lines @@
   return type_parameter.raw();
 }
 
 
 void RawTypeParameter::WriteTo(SnapshotWriter* writer,
                                intptr_t object_id,
                                Snapshot::Kind kind) {
   ASSERT(writer != NULL);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kTypeParameterClass,
-                            writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kTypeParameterClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the non object pointer fields.
   writer->WriteIntptrValue(ptr()->index_);
   writer->WriteIntptrValue(ptr()->token_pos_);
   writer->Write<int8_t>(ptr()->type_state_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer, false);
   visitor.VisitPointers(from(), to());
 }
@@ skipping 47 matching lines @@
   return type_arguments.raw();
 }
 
 
 void RawTypeArguments::WriteTo(SnapshotWriter* writer,
                                intptr_t object_id,
                                Snapshot::Kind kind) {
   ASSERT(writer != NULL);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kTypeArgumentsClass,
-                            writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kTypeArgumentsClass);
+  writer->WriteIntptrValue(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++) {
     writer->WriteObjectImpl(ptr()->types_[i]);
   }
 }
@@ skipping 28 matching lines @@
 }
 
 
 void RawInstantiatedTypeArguments::WriteTo(SnapshotWriter* writer,
                                            intptr_t object_id,
                                            Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(kind == Snapshot::kMessage);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kInstantiatedTypeArgumentsClass,
-                            writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kInstantiatedTypeArgumentsClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer, false);
   visitor.VisitPointers(from(), to());
 }
 
 
 RawFunction* Function::ReadFrom(SnapshotReader* reader,
                                 intptr_t object_id,
                                 intptr_t tags,
@@ skipping 35 matching lines @@
 
 
 void RawFunction::WriteTo(SnapshotWriter* writer,
                           intptr_t object_id,
                           Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(kind != Snapshot::kMessage &&
          !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this)));
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kFunctionClass,
-                            writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kFunctionClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the non object fields.
   writer->WriteIntptrValue(ptr()->token_pos_);
   writer->WriteIntptrValue(ptr()->end_token_pos_);
   writer->WriteIntptrValue(ptr()->num_fixed_parameters_);
   writer->WriteIntptrValue(ptr()->num_optional_parameters_);
   writer->WriteIntptrValue(ptr()->usage_counter_);
   writer->WriteIntptrValue(ptr()->deoptimization_counter_);
   writer->WriteIntptrValue(ptr()->kind_);
   writer->Write<bool>(ptr()->is_static_);
@@ skipping 41 matching lines @@
 
 
 void RawField::WriteTo(SnapshotWriter* writer,
                        intptr_t object_id,
                        Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(kind != Snapshot::kMessage &&
          !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this)));
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kFieldClass, writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kFieldClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the non object fields.
   writer->WriteIntptrValue(ptr()->token_pos_);
   writer->Write<bool>(ptr()->is_static_);
   writer->Write<bool>(ptr()->is_final_);
   writer->Write<bool>(ptr()->is_const_);
   writer->Write<bool>(ptr()->has_initializer_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
@@ skipping 28 matching lines @@
 }
 
 
 void RawLiteralToken::WriteTo(SnapshotWriter* writer,
                               intptr_t object_id,
                               Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(kind != Snapshot::kMessage);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kLiteralTokenClass,
-                            writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kLiteralTokenClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out the kind field.
   writer->Write<intptr_t>(ptr()->kind_);
 
   // Write out literal and value fields.
   writer->WriteObjectImpl(ptr()->literal_);
   writer->WriteObjectImpl(ptr()->value_);
 }
 
 
@@ skipping 31 matching lines @@
 
 
 void RawTokenStream::WriteTo(SnapshotWriter* writer,
                              intptr_t object_id,
                              Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(kind != Snapshot::kMessage &&
          !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this)));
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kTokenStreamClass,
-                            writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kTokenStreamClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out the length field and the token stream.
   intptr_t len = Smi::Value(ptr()->length_);
   writer->Write<RawObject*>(ptr()->length_);
   writer->WriteBytes(reinterpret_cast<uint8_t*>(ptr()->data_), len);
 
   // Write out the literal/identifier token array.
   writer->WriteObjectImpl(ptr()->token_objects_);
 }
 
@@ skipping 29 matching lines @@
 
 void RawScript::WriteTo(SnapshotWriter* writer,
                         intptr_t object_id,
                         Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(tokens_ != TokenStream::null());
   ASSERT(kind != Snapshot::kMessage &&
          !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this)));
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kScriptClass, writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kScriptClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the object pointer fields.
   writer->WriteObjectImpl(ptr()->url_);
   writer->WriteObjectImpl(ptr()->tokens_);
 }
 
 
 RawLibrary* Library::ReadFrom(SnapshotReader* reader,
                               intptr_t object_id,
                               intptr_t tags,
@@ skipping 47 matching lines @@
 }
 
 
 void RawLibrary::WriteTo(SnapshotWriter* writer,
                          intptr_t object_id,
                          Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(kind != Snapshot::kMessage);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kLibraryClass, writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kLibraryClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   if (RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this))) {
     ASSERT(kind != Snapshot::kFull);
     // Write out library URL so that it can be looked up when reading.
     writer->WriteObjectImpl(ptr()->url_);
   } else {
     // Write out all non object fields.
     writer->WriteIntptrValue(ptr()->index_);
     writer->WriteIntptrValue(ptr()->num_imports_);
     writer->WriteIntptrValue(ptr()->num_imported_into_);
@@ skipping 46 matching lines @@
 
 
 void RawLibraryPrefix::WriteTo(SnapshotWriter* writer,
                                intptr_t object_id,
                                Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(kind != Snapshot::kMessage &&
          !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this)));
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kLibraryPrefixClass,
-                            writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kLibraryPrefixClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all non object fields.
   writer->WriteIntptrValue(ptr()->num_libs_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to());
 }
 
 
@@ skipping 128 matching lines @@
   return context.raw();
 }
 
 
 void RawContext::WriteTo(SnapshotWriter* writer,
                          intptr_t object_id,
                          Snapshot::Kind kind) {
   ASSERT(writer != NULL);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kContextClass, writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kContextClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out num of variables in the context.
   writer->WriteIntptrValue(ptr()->num_variables_);
 
   // Can't serialize the isolate pointer, we set it implicitly on read.
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to(ptr()->num_variables_));
 }
@@ skipping 27 matching lines @@
 }
 
 
 void RawContextScope::WriteTo(SnapshotWriter* writer,
                               intptr_t object_id,
                               Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(kind == Snapshot::kMessage);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(Object::kContextScopeClass,
-                            writer->GetObjectTags(this));
+  writer->WriteVMIsolateObject(Object::kContextScopeClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Serialize number of variables.
   writer->WriteIntptrValue(ptr()->num_variables_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to(ptr()->num_variables_));
 }
 
 
@@ skipping 153 matching lines @@
   return mint.raw();
 }
 
 
 void RawMint::WriteTo(SnapshotWriter* writer,
                       intptr_t object_id,
                       Snapshot::Kind kind) {
   ASSERT(writer != NULL);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(ObjectStore::kMintClass,
-                            writer->GetObjectTags(this));
+  writer->WriteIndexedObject(ObjectStore::kMintClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out the 64 bit value.
   writer->Write<int64_t>(ptr()->value_);
 }
 
 
 RawBigint* Bigint::ReadFrom(SnapshotReader* reader,
                             intptr_t object_id,
                             intptr_t tags,
                             Snapshot::Kind kind) {
@@ skipping 23 matching lines @@
   return obj.raw();
 }
 
 
 void RawBigint::WriteTo(SnapshotWriter* writer,
                         intptr_t object_id,
                         Snapshot::Kind kind) {
   ASSERT(writer != NULL);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(ObjectStore::kBigintClass,
-                            writer->GetObjectTags(this));
+  writer->WriteIndexedObject(ObjectStore::kBigintClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out the bigint value as a HEXCstring.
   intptr_t length = ptr()->signed_length_;
   bool is_negative = false;
   if (length <= 0) {
     length = -length;
     is_negative = true;
   }
   uword data_start = reinterpret_cast<uword>(ptr()) + sizeof(RawBigint);
   const char* str = BigintOperations::ToHexCString(
@@ skipping 45 matching lines @@
   return dbl.raw();
 }
 
 
 void RawDouble::WriteTo(SnapshotWriter* writer,
                         intptr_t object_id,
                         Snapshot::Kind kind) {
   ASSERT(writer != NULL);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(ObjectStore::kDoubleClass,
-                            writer->GetObjectTags(this));
+  writer->WriteIndexedObject(ObjectStore::kDoubleClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out the double value.
   writer->Write<double>(ptr()->value_);
 }
 
 
 RawString* String::ReadFrom(SnapshotReader* reader,
                             intptr_t object_id,
                             intptr_t tags,
                             Snapshot::Kind kind) {
@@ skipping 133 matching lines @@
                           Snapshot::Kind kind,
                           intptr_t class_id,
                           intptr_t tags,
                           RawSmi* length,
                           RawSmi* hash,
                           T* data) {
   ASSERT(writer != NULL);
   intptr_t len = Smi::Value(length);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(class_id, tags);
+  writer->WriteIndexedObject(class_id);
+  writer->WriteIntptrValue(tags);
 
   // Write out the length field.
   writer->Write<RawObject*>(length);
 
   // Write out the hash field.
   writer->Write<RawObject*>(hash);
 
   // Write out the string.
   if (len > 0) {
     if (class_id == ObjectStore::kOneByteStringClass) {
@@ skipping 230 matching lines @@
   return array.raw();
 }
 
 
 void RawGrowableObjectArray::WriteTo(SnapshotWriter* writer,
                                      intptr_t object_id,
                                      Snapshot::Kind kind) {
   ASSERT(writer != NULL);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(ObjectStore::kGrowableObjectArrayClass,
-                            writer->GetObjectTags(this));
+  writer->WriteIndexedObject(ObjectStore::kGrowableObjectArrayClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out the used length field.
   writer->Write<RawObject*>(ptr()->length_);
 
   // Write out the Array object.
   writer->WriteObjectImpl(ptr()->data_);
 }
 
 
 RawByteArray* ByteArray::ReadFrom(SnapshotReader* reader,
@@ skipping 85 matching lines @@
                              intptr_t object_id,
                              Snapshot::Kind kind,
                              intptr_t byte_array_kind,
                              intptr_t tags,
                              RawSmi* length,
                              uint8_t* data) {
   ASSERT(writer != NULL);
   intptr_t len = Smi::Value(length);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(byte_array_kind, tags);
+  writer->WriteIndexedObject(byte_array_kind);
+  writer->WriteIntptrValue(tags);
 
   // Write out the length field.
   writer->Write<RawObject*>(length);
 
   // Write out the array elements.
   for (intptr_t i = 0; i < len; i++) {
     writer->Write(data[i]);
   }
 }
 
@@ skipping 106 matching lines @@
 }
 
 
 void RawJSRegExp::WriteTo(SnapshotWriter* writer,
                           intptr_t object_id,
                           Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(kind == Snapshot::kMessage);
 
   // Write out the serialization header value for this object.
-  writer->WriteSerializationMarker(kInlined, object_id);
+  writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
-  writer->WriteObjectHeader(ObjectStore::kJSRegExpClass,
-                            writer->GetObjectTags(this));
+  writer->WriteIndexedObject(ObjectStore::kJSRegExpClass);
+  writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out the data length field.
   writer->Write<RawObject*>(ptr()->data_length_);
 
   // Write out all the other fields.
   writer->Write<RawObject*>(ptr()->num_bracket_expressions_);
   writer->WriteObjectImpl(ptr()->pattern_);
   writer->WriteIntptrValue(ptr()->type_);
   writer->WriteIntptrValue(ptr()->flags_);
 
   // Do not write out the data part which is native.
 }
 
 
 }  // namespace dart