Begins removing intptr_t from raw object fields.

runtime/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/stub_code.h"
 #include "vm/symbols.h"
@@ skipping 21 matching lines @@
 RawClass* Class::ReadFrom(SnapshotReader* reader,
                           intptr_t object_id,
                           intptr_t tags,
                           Snapshot::Kind kind) {
   ASSERT(reader != NULL);
 
   Class& cls = Class::ZoneHandle(reader->isolate(), Class::null());
   if ((kind == Snapshot::kFull) ||
       (kind == Snapshot::kScript && !RawObject::IsCreatedFromSnapshot(tags))) {
     // Read in the base information.
-    intptr_t class_id = reader->ReadIntptrValue();
+    int32_t class_id = reader->Read<int32_t>();
 
     // Allocate class object of specified kind.
     if (kind == Snapshot::kFull) {
       cls = reader->NewClass(class_id);
     } else {
       if (class_id < kNumPredefinedCids) {
         ASSERT((class_id >= kInstanceCid) && (class_id <= kMirrorReferenceCid));
         cls = reader->isolate()->class_table()->At(class_id);
       } else {
         cls = New<Instance>(kIllegalCid);
       }
     }
     reader->AddBackRef(object_id, &cls, kIsDeserialized);
 
     // Set the object tags.
     cls.set_tags(tags);
 
     // Set all non object fields.
     if (!RawObject::IsInternalVMdefinedClassId(class_id)) {
       // Instance size of a VM defined class is already set up.
-      cls.set_instance_size_in_words(reader->ReadIntptrValue());
-      cls.set_next_field_offset_in_words(reader->ReadIntptrValue());
+      cls.set_instance_size_in_words(reader->Read<int32_t>());
+      cls.set_next_field_offset_in_words(reader->Read<int32_t>());
     }
-    cls.set_type_arguments_field_offset_in_words(reader->ReadIntptrValue());
+    cls.set_type_arguments_field_offset_in_words(reader->Read<int32_t>());
     cls.set_num_type_arguments(reader->Read<int16_t>());
     cls.set_num_own_type_arguments(reader->Read<int16_t>());
     cls.set_num_native_fields(reader->Read<uint16_t>());
-    cls.set_token_pos(reader->ReadIntptrValue());
+    cls.set_token_pos(reader->Read<int32_t>());
     cls.set_state_bits(reader->Read<uint16_t>());
 
     // Set all the object fields.
     // TODO(5411462): Need to assert No GC can happen here, even though
     // allocations may happen.
     intptr_t num_flds = (cls.raw()->to() - cls.raw()->from());
     for (intptr_t i = 0; i <= num_flds; i++) {
       *(cls.raw()->from() + i) = reader->ReadObjectRef();
     }
   } else {
@@ skipping 13 matching lines @@
 
   if ((kind == Snapshot::kFull) ||
       (kind == Snapshot::kScript &&
        !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this)))) {
     // Write out the class and tags information.
     writer->WriteVMIsolateObject(kClassCid);
     writer->WriteIntptrValue(writer->GetObjectTags(this));
 
     // Write out all the non object pointer fields.
     // NOTE: cpp_vtable_ is not written.
-    intptr_t class_id = ptr()->id_;
-    writer->WriteIntptrValue(class_id);
+    int32_t class_id = ptr()->id_;
+    writer->Write<int32_t>(class_id);
     if (!RawObject::IsInternalVMdefinedClassId(class_id)) {
       // We don't write the instance size of VM defined classes as they
       // are already setup during initialization as part of pre populating
       // the class table.
-      writer->WriteIntptrValue(ptr()->instance_size_in_words_);
-      writer->WriteIntptrValue(ptr()->next_field_offset_in_words_);
+      writer->Write<int32_t>(ptr()->instance_size_in_words_);
+      writer->Write<int32_t>(ptr()->next_field_offset_in_words_);
     }
-    writer->WriteIntptrValue(ptr()->type_arguments_field_offset_in_words_);
+    writer->Write<int32_t>(ptr()->type_arguments_field_offset_in_words_);
     writer->Write<int16_t>(ptr()->num_type_arguments_);
     writer->Write<int16_t>(ptr()->num_own_type_arguments_);
     writer->Write<uint16_t>(ptr()->num_native_fields_);
-    writer->WriteIntptrValue(ptr()->token_pos_);
+    writer->Write<int32_t>(ptr()->token_pos_);
     writer->Write<uint16_t>(ptr()->state_bits_);
 
     // Write out all the object pointer fields.
     SnapshotWriterVisitor visitor(writer);
     visitor.VisitPointers(from(), to());
   } else {
     writer->WriteClassId(this);
   }
 }
 
 
 RawUnresolvedClass* UnresolvedClass::ReadFrom(SnapshotReader* reader,
                                               intptr_t object_id,
                                               intptr_t tags,
                                               Snapshot::Kind kind) {
   ASSERT(reader != NULL);
 
   // Allocate unresolved class object.
   UnresolvedClass& unresolved_class = UnresolvedClass::ZoneHandle(
       reader->isolate(), NEW_OBJECT(UnresolvedClass));
   reader->AddBackRef(object_id, &unresolved_class, kIsDeserialized);
 
   // Set the object tags.
   unresolved_class.set_tags(tags);
 
   // Set all non object fields.
-  unresolved_class.set_token_pos(reader->ReadIntptrValue());
+  unresolved_class.set_token_pos(reader->Read<int32_t>());
 
   // Set all the object fields.
   // TODO(5411462): Need to assert No GC can happen here, even though
   // allocations may happen.
   intptr_t num_flds = (unresolved_class.raw()->to() -
                        unresolved_class.raw()->from());
   for (intptr_t i = 0; i <= num_flds; i++) {
     (*reader->ObjectHandle()) = reader->ReadObjectRef();
     unresolved_class.StorePointer((unresolved_class.raw()->from() + i),
                                   reader->ObjectHandle()->raw());
   }
   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->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
   writer->WriteVMIsolateObject(kUnresolvedClassCid);
   writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the non object pointer fields.
-  writer->WriteIntptrValue(ptr()->token_pos_);
+  writer->Write<int32_t>(ptr()->token_pos_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to());
 }
 
 
 RawAbstractType* AbstractType::ReadFrom(SnapshotReader* reader,
                                         intptr_t object_id,
                                         intptr_t tags,
@@ skipping 14 matching lines @@
                         intptr_t object_id,
                         intptr_t tags,
                         Snapshot::Kind kind) {
   ASSERT(reader != NULL);
 
   // Allocate type object.
   Type& type = Type::ZoneHandle(reader->isolate(), NEW_OBJECT(Type));
   reader->AddBackRef(object_id, &type, kIsDeserialized);
 
   // Set all non object fields.
-  type.set_token_pos(reader->ReadIntptrValue());
+  type.set_token_pos(reader->Read<int32_t>());
   type.set_type_state(reader->Read<int8_t>());
 
   // Set all the object fields.
   // TODO(5411462): Need to assert No GC can happen here, even though
   // allocations may happen.
   intptr_t num_flds = (type.raw()->to() - type.raw()->from());
   for (intptr_t i = 0; i <= num_flds; i++) {
     (*reader->ObjectHandle()) = reader->ReadObjectImpl();
     type.StorePointer((type.raw()->from() + i), reader->ObjectHandle()->raw());
   }
@@ skipping 30 matching lines @@
          (ptr()->type_state_ == RawType::kFinalizedUninstantiated));
 
   // Write out the serialization header value for this object.
   writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
   writer->WriteIndexedObject(kTypeCid);
   writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the non object pointer fields.
-  writer->WriteIntptrValue(ptr()->token_pos_);
+  writer->Write<int32_t>(ptr()->token_pos_);
   writer->Write<int8_t>(ptr()->type_state_);
 
   // Write out all the object pointer fields. Since we will be canonicalizing
   // the type object when reading it back we should write out all the fields
   // inline and not as references.
   SnapshotWriterVisitor visitor(writer, false);
   visitor.VisitPointers(from(), to());
 }
 
 
@@ skipping 51 matching lines @@
 
   // Allocate type parameter object.
   TypeParameter& type_parameter = TypeParameter::ZoneHandle(
       reader->isolate(), NEW_OBJECT(TypeParameter));
   reader->AddBackRef(object_id, &type_parameter, kIsDeserialized);
 
   // Set the object tags.
   type_parameter.set_tags(tags);
 
   // Set all non object fields.
-  type_parameter.set_index(reader->ReadIntptrValue());
-  type_parameter.set_token_pos(reader->ReadIntptrValue());
+  type_parameter.set_index(reader->Read<int32_t>());
+  type_parameter.set_token_pos(reader->Read<int32_t>());
   type_parameter.set_type_state(reader->Read<int8_t>());
 
   // Set all the object fields.
   // TODO(5411462): Need to assert No GC can happen here, even though
   // allocations may happen.
   intptr_t num_flds = (type_parameter.raw()->to() -
                        type_parameter.raw()->from());
   for (intptr_t i = 0; i <= num_flds; i++) {
     (*reader->ObjectHandle()) = reader->ReadObjectRef();
     type_parameter.StorePointer((type_parameter.raw()->from() + i),
@@ skipping 13 matching lines @@
   ASSERT(ptr()->type_state_ == RawTypeParameter::kFinalizedUninstantiated);
 
   // Write out the serialization header value for this object.
   writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
   writer->WriteIndexedObject(kTypeParameterCid);
   writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the non object pointer fields.
-  writer->WriteIntptrValue(ptr()->index_);
-  writer->WriteIntptrValue(ptr()->token_pos_);
+  writer->Write<int32_t>(ptr()->index_);
+  writer->Write<int32_t>(ptr()->token_pos_);
   writer->Write<int8_t>(ptr()->type_state_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to());
 }
 
 
 RawBoundedType* BoundedType::ReadFrom(SnapshotReader* reader,
                                       intptr_t object_id,
@@ skipping 307 matching lines @@
 
   // Allocate function object.
   Function& func = Function::ZoneHandle(
       reader->isolate(), NEW_OBJECT(Function));
   reader->AddBackRef(object_id, &func, kIsDeserialized);
 
   // Set the object tags.
   func.set_tags(tags);
 
   // Set all the non object fields.
-  func.set_token_pos(reader->ReadIntptrValue());
-  func.set_end_token_pos(reader->ReadIntptrValue());
-  func.set_usage_counter(reader->ReadIntptrValue());
-  func.set_num_fixed_parameters(reader->ReadIntptrValue());
-  func.set_num_optional_parameters(reader->ReadIntptrValue());
-  func.set_deoptimization_counter(reader->ReadIntptrValue());
+  func.set_token_pos(reader->Read<int32_t>());
+  func.set_end_token_pos(reader->Read<int32_t>());
+  func.set_usage_counter(reader->Read<int32_t>());
+  func.set_num_fixed_parameters(reader->Read<int16_t>());
+  func.set_num_optional_parameters(reader->Read<int16_t>());
+  func.set_deoptimization_counter(reader->Read<int16_t>());
   func.set_kind_tag(reader->Read<uint16_t>());
   func.set_optimized_instruction_count(reader->Read<uint16_t>());
   func.set_optimized_call_site_count(reader->Read<uint16_t>());
 
   // Set all the object fields.
   // TODO(5411462): Need to assert No GC can happen here, even though
   // allocations may happen.
-  intptr_t num_flds = (func.raw()->to_snapshot() - func.raw()->from());
+  intptr_t num_flds = (func.raw()->to() - func.raw()->from());
   for (intptr_t i = 0; i <= num_flds; i++) {
     *(func.raw()->from() + i) = reader->ReadObjectRef();
   }
 
-  // Initialize all fields that are not part of the snapshot.
-  func.ClearCode();
+  // Set up code pointer with the lazy-compile-stub.
+  func.SetInstructions(Code::Handle(StubCode::LazyCompile_entry()->code()));
+
   return func.raw();
 }
 
 
 void RawFunction::WriteTo(SnapshotWriter* writer,
                           intptr_t object_id,
                           Snapshot::Kind kind) {
   ASSERT(writer != NULL);
   ASSERT(((kind == Snapshot::kScript) &&
           !RawObject::IsCreatedFromSnapshot(writer->GetObjectTags(this))) ||
          (kind == Snapshot::kFull));
 
   // Write out the serialization header value for this object.
   writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
   writer->WriteVMIsolateObject(kFunctionCid);
   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()->usage_counter_);
-  writer->WriteIntptrValue(ptr()->num_fixed_parameters_);
-  writer->WriteIntptrValue(ptr()->num_optional_parameters_);
-  writer->WriteIntptrValue(ptr()->deoptimization_counter_);
+  writer->Write<int32_t>(ptr()->token_pos_);
+  writer->Write<int32_t>(ptr()->end_token_pos_);
+  writer->Write<int32_t>(ptr()->usage_counter_);
+  writer->Write<int16_t>(ptr()->num_fixed_parameters_);
+  writer->Write<int16_t>(ptr()->num_optional_parameters_);
+  writer->Write<int16_t>(ptr()->deoptimization_counter_);
   writer->Write<uint16_t>(ptr()->kind_tag_);
   writer->Write<uint16_t>(ptr()->optimized_instruction_count_);
   writer->Write<uint16_t>(ptr()->optimized_call_site_count_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
-  visitor.VisitPointers(from(), to_snapshot());
+  visitor.VisitPointers(from(), to_no_code());
+
+  // Write null for the instructions and unoptimized code.
+  writer->WriteVMIsolateObject(kNullObject);
+  writer->WriteVMIsolateObject(kNullObject);
 }
 
 
 RawField* Field::ReadFrom(SnapshotReader* reader,
                           intptr_t object_id,
                           intptr_t tags,
                           Snapshot::Kind kind) {
   ASSERT(reader != NULL);
   ASSERT(((kind == Snapshot::kScript) &&
           !RawObject::IsCreatedFromSnapshot(tags)) ||
          (kind == Snapshot::kFull));
 
   // Allocate field object.
   Field& field = Field::ZoneHandle(reader->isolate(), NEW_OBJECT(Field));
   reader->AddBackRef(object_id, &field, kIsDeserialized);
 
   // Set the object tags.
   field.set_tags(tags);
 
   // Set all non object fields.
-  field.set_token_pos(reader->ReadIntptrValue());
-  field.set_guarded_cid(reader->ReadIntptrValue());
-  field.set_is_nullable(reader->ReadIntptrValue());
+  field.set_token_pos(reader->Read<int32_t>());
+  field.set_guarded_cid(reader->Read<int32_t>());
+  field.set_is_nullable(reader->Read<int32_t>());
   field.set_kind_bits(reader->Read<uint8_t>());
 
   // Set all the object fields.
   // TODO(5411462): Need to assert No GC can happen here, even though
   // allocations may happen.
   intptr_t num_flds = (field.raw()->to() - field.raw()->from());
   for (intptr_t i = 0; i <= num_flds; i++) {
     *(field.raw()->from() + i) = reader->ReadObjectRef();
   }
 
@@ skipping 12 matching lines @@
          (kind == Snapshot::kFull));
 
   // Write out the serialization header value for this object.
   writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
   writer->WriteVMIsolateObject(kFieldCid);
   writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the non object fields.
-  writer->WriteIntptrValue(ptr()->token_pos_);
-  writer->WriteIntptrValue(ptr()->guarded_cid_);
-  writer->WriteIntptrValue(ptr()->is_nullable_);
+  writer->Write<int32_t>(ptr()->token_pos_);
+  writer->Write<int32_t>(ptr()->guarded_cid_);
+  writer->Write<int32_t>(ptr()->is_nullable_);
   writer->Write<uint8_t>(ptr()->kind_bits_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to());
 }
 
 
 RawLiteralToken* LiteralToken::ReadFrom(SnapshotReader* reader,
                                         intptr_t object_id,
@@ skipping 188 matching lines @@
     *reader->StringHandle() ^= reader->ReadObjectImpl();
     library = Library::LookupLibrary(*reader->StringHandle());
   } else {
     // Allocate library object.
     library = NEW_OBJECT(Library);
 
     // Set the object tags.
     library.set_tags(tags);
 
     // Set all non object fields.
-    library.raw_ptr()->index_ = reader->ReadIntptrValue();
-    library.raw_ptr()->num_imports_ = reader->ReadIntptrValue();
-    library.raw_ptr()->num_anonymous_ = reader->ReadIntptrValue();
+    library.raw_ptr()->index_ = reader->Read<int32_t>();
+    library.raw_ptr()->num_imports_ = reader->Read<int32_t>();
+    library.raw_ptr()->num_anonymous_ = reader->Read<int32_t>();
     library.raw_ptr()->corelib_imported_ = reader->Read<bool>();
     library.raw_ptr()->is_dart_scheme_ = reader->Read<bool>();
     library.raw_ptr()->debuggable_ = reader->Read<bool>();
     library.raw_ptr()->load_state_ = reader->Read<int8_t>();
     // The native resolver is not serialized.
     Dart_NativeEntryResolver resolver =
         reader->Read<Dart_NativeEntryResolver>();
     ASSERT(resolver == NULL);
     library.set_native_entry_resolver(resolver);
     // The symbol resolver is not serialized.
@@ skipping 32 matching lines @@
   writer->WriteVMIsolateObject(kLibraryCid);
   writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   if ((kind == Snapshot::kScript) &&
       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_anonymous_);
+    writer->Write<int32_t>(ptr()->index_);
+    writer->Write<int32_t>(ptr()->num_imports_);
+    writer->Write<int32_t>(ptr()->num_anonymous_);
     writer->Write<bool>(ptr()->corelib_imported_);
     writer->Write<bool>(ptr()->is_dart_scheme_);
     writer->Write<bool>(ptr()->debuggable_);
     writer->Write<int8_t>(ptr()->load_state_);
     // We do not serialize the native resolver over, this needs to be explicitly
     // set after deserialization.
     writer->Write<Dart_NativeEntryResolver>(NULL);
     // We do not serialize the native entry symbol, this needs to be explicitly
     // set after deserialization.
     writer->Write<Dart_NativeEntrySymbol>(NULL);
@@ skipping 19 matching lines @@
 
   // Allocate library prefix object.
   LibraryPrefix& prefix = LibraryPrefix::ZoneHandle(
       reader->isolate(), NEW_OBJECT(LibraryPrefix));
   reader->AddBackRef(object_id, &prefix, kIsDeserialized);
 
   // Set the object tags.
   prefix.set_tags(tags);
 
   // Set all non object fields.
-  prefix.raw_ptr()->num_imports_ = reader->ReadIntptrValue();
+  prefix.raw_ptr()->num_imports_ = reader->Read<int32_t>();
   prefix.raw_ptr()->is_deferred_load_ = reader->Read<bool>();
   prefix.raw_ptr()->is_loaded_ = reader->Read<bool>();
 
   // Set all the object fields.
   // TODO(5411462): Need to assert No GC can happen here, even though
   // allocations may happen.
   intptr_t num_flds = (prefix.raw()->to() - prefix.raw()->from());
   for (intptr_t i = 0; i <= num_flds; i++) {
     *(prefix.raw()->from() + i) = reader->ReadObjectRef();
   }
@@ skipping 11 matching lines @@
          (kind == Snapshot::kFull));
 
   // Write out the serialization header value for this object.
   writer->WriteInlinedObjectHeader(object_id);
 
   // Write out the class and tags information.
   writer->WriteIndexedObject(kLibraryPrefixCid);
   writer->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all non object fields.
-  writer->WriteIntptrValue(ptr()->num_imports_);
+  writer->Write<int32_t>(ptr()->num_imports_);
   writer->Write<bool>(ptr()->is_deferred_load_);
   writer->Write<bool>(ptr()->is_loaded_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to());
 }
 
 
 RawNamespace* Namespace::ReadFrom(SnapshotReader* reader,
@@ skipping 353 matching lines @@
 
   // Allocate LanguageError object.
   LanguageError& language_error =
       LanguageError::ZoneHandle(reader->isolate(), NEW_OBJECT(LanguageError));
   reader->AddBackRef(object_id, &language_error, kIsDeserialized);
 
   // Set the object tags.
   language_error.set_tags(tags);
 
   // Set all non object fields.
-  language_error.set_token_pos(reader->ReadIntptrValue());
+  language_error.set_token_pos(reader->Read<int32_t>());
   language_error.set_kind(reader->Read<uint8_t>());
 
   // Set all the object fields.
   // TODO(5411462): Need to assert No GC can happen here, even though
   // allocations may happen.
   intptr_t num_flds =
       (language_error.raw()->to() - language_error.raw()->from());
   for (intptr_t i = 0; i <= num_flds; i++) {
     (*reader->ObjectHandle()) = reader->ReadObjectRef();
     language_error.StorePointer((language_error.raw()->from() + i),
@@ skipping 10 matching lines @@
   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->WriteIntptrValue(writer->GetObjectTags(this));
 
   // Write out all the non object fields.
-  writer->WriteIntptrValue(ptr()->token_pos_);
+  writer->Write<int32_t>(ptr()->token_pos_);
   writer->Write<uint8_t>(ptr()->kind_);
 
   // Write out all the object pointer fields.
   SnapshotWriterVisitor visitor(writer);
   visitor.VisitPointers(from(), to());
 }
 
 
 RawUnhandledException* UnhandledException::ReadFrom(SnapshotReader* reader,
                                                     intptr_t object_id,
@@ skipping 1219 matching lines @@
     // 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