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// Copyright (c) 2013, 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/object_store.h"
#include "vm/exceptions.h"
#include "vm/dart_entry.h"
#include "vm/isolate.h"
#include "vm/object.h"
#include "vm/raw_object.h"
#include "vm/symbols.h"
#include "vm/visitor.h"
namespace dart {
ObjectStore::ObjectStore()
: object_class_(Class::null()),
object_type_(Type::null()),
null_class_(Class::null()),
null_type_(Type::null()),
function_type_(Type::null()),
function_impl_type_(Type::null()),
number_type_(Type::null()),
int_type_(Type::null()),
integer_implementation_class_(Class::null()),
smi_class_(Class::null()),
smi_type_(Type::null()),
mint_class_(Class::null()),
mint_type_(Type::null()),
bigint_class_(Class::null()),
double_class_(Class::null()),
double_type_(Type::null()),
float32x4_type_(Type::null()),
int32x4_type_(Type::null()),
float64x2_type_(Type::null()),
string_type_(Type::null()),
future_class_(Class::null()),
completer_class_(Class::null()),
stream_iterator_class_(Class::null()),
one_byte_string_class_(Class::null()),
two_byte_string_class_(Class::null()),
external_one_byte_string_class_(Class::null()),
external_two_byte_string_class_(Class::null()),
bool_type_(Type::null()),
bool_class_(Class::null()),
array_class_(Class::null()),
array_type_(Type::null()),
immutable_array_class_(Class::null()),
growable_object_array_class_(Class::null()),
linked_hash_map_class_(Class::null()),
float32x4_class_(Class::null()),
int32x4_class_(Class::null()),
float64x2_class_(Class::null()),
error_class_(Class::null()),
weak_property_class_(Class::null()),
symbol_table_(Array::null()),
canonical_type_arguments_(Array::null()),
async_library_(Library::null()),
builtin_library_(Library::null()),
core_library_(Library::null()),
collection_library_(Library::null()),
convert_library_(Library::null()),
internal_library_(Library::null()),
isolate_library_(Library::null()),
math_library_(Library::null()),
mirrors_library_(Library::null()),
native_wrappers_library_(Library::null()),
root_library_(Library::null()),
typed_data_library_(Library::null()),
profiler_library_(Library::null()),
libraries_(GrowableObjectArray::null()),
pending_classes_(GrowableObjectArray::null()),
pending_functions_(GrowableObjectArray::null()),
pending_deferred_loads_(GrowableObjectArray::null()),
resume_capabilities_(GrowableObjectArray::null()),
sticky_error_(Error::null()),
unhandled_exception_handler_(String::null()),
empty_context_(Context::null()),
stack_overflow_(Instance::null()),
out_of_memory_(Instance::null()),
preallocated_unhandled_exception_(UnhandledException::null()),
preallocated_stack_trace_(Stacktrace::null()),
lookup_port_handler_(Function::null()),
empty_uint32_array_(TypedData::null()),
handle_message_function_(Function::null()),
library_load_error_table_(Array::null()) {
for (RawObject** current = from(); current <= to(); current++) {
ASSERT(*current == Object::null());
}
}
ObjectStore::~ObjectStore() {
}
void ObjectStore::VisitObjectPointers(ObjectPointerVisitor* visitor) {
ASSERT(visitor != NULL);
visitor->VisitPointers(from(), to());
}
void ObjectStore::Init(Isolate* isolate) {
ASSERT(isolate->object_store() == NULL);
ObjectStore* store = new ObjectStore();
isolate->set_object_store(store);
}
bool ObjectStore::PreallocateObjects() {
Isolate* isolate = Isolate::Current();
ASSERT(isolate != NULL && isolate->object_store() == this);
if (this->stack_overflow() != Instance::null()) {
ASSERT(this->out_of_memory() != Instance::null());
ASSERT(this->preallocated_stack_trace() != Stacktrace::null());
return true;
}
ASSERT(this->stack_overflow() == Instance::null());
ASSERT(this->out_of_memory() == Instance::null());
ASSERT(this->preallocated_stack_trace() == Stacktrace::null());
ASSERT(this->pending_functions() == GrowableObjectArray::null());
this->pending_functions_ = GrowableObjectArray::New();
this->pending_deferred_loads_ = GrowableObjectArray::New();
this->resume_capabilities_ = GrowableObjectArray::New();
Object& result = Object::Handle();
const Library& library = Library::Handle(Library::CoreLibrary());
result = DartLibraryCalls::InstanceCreate(library,
Symbols::StackOverflowError(),
Symbols::Dot(),
Object::empty_array());
if (result.IsError()) {
return false;
}
set_stack_overflow(Instance::Cast(result));
result = DartLibraryCalls::InstanceCreate(library,
Symbols::OutOfMemoryError(),
Symbols::Dot(),
Object::empty_array());
if (result.IsError()) {
return false;
}
set_out_of_memory(Instance::Cast(result));
// Allocate pre-allocated unhandled exception object initialized with the
// pre-allocated OutOfMemoryError.
const UnhandledException& unhandled_exception = UnhandledException::Handle(
UnhandledException::New(Instance::Cast(result), Object::null_instance()));
set_preallocated_unhandled_exception(unhandled_exception);
const Array& code_array = Array::Handle(
isolate,
Array::New(Stacktrace::kPreallocatedStackdepth, Heap::kOld));
const Array& pc_offset_array = Array::Handle(
isolate,
Array::New(Stacktrace::kPreallocatedStackdepth, Heap::kOld));
const Stacktrace& stack_trace =
Stacktrace::Handle(Stacktrace::New(code_array, pc_offset_array));
// Expansion of inlined functions requires additional memory at run time,
// avoid it.
stack_trace.set_expand_inlined(false);
set_preallocated_stack_trace(stack_trace);
return true;
}
void ObjectStore::InitAsyncObjects() {
Isolate* isolate = Isolate::Current();
ASSERT(isolate != NULL && isolate->object_store() == this);
const Library& async_lib = Library::Handle(async_library());
ASSERT(!async_lib.IsNull());
Class& cls = Class::Handle(isolate);
cls = async_lib.LookupClass(Symbols::Future());
ASSERT(!cls.IsNull());
set_future_class(cls);
cls = async_lib.LookupClass(Symbols::Completer());
ASSERT(!cls.IsNull());
set_completer_class(cls);
cls = async_lib.LookupClass(Symbols::StreamIterator());
ASSERT(!cls.IsNull());
set_stream_iterator_class(cls);
}
} // namespace dart