Flutter Engine
The Flutter Engine
Classes | Public Member Functions | Static Public Member Functions | Static Public Attributes | Friends | List of all members
dart::WeakArray Class Reference

#include <object.h>

Inheritance diagram for dart::WeakArray:
dart::Object

Classes

struct  ArrayTraits
 

Public Member Functions

intptr_t Length () const
 
ObjectPtr At (intptr_t index) const
 
void SetAt (intptr_t index, const Object &value) const
 
ObjectPtr AtAcquire (intptr_t index) const
 
void SetAtRelease (intptr_t index, const Object &value) const
 
- Public Member Functions inherited from dart::Object
virtual ~Object ()
 
ObjectPtr ptr () const
 
void operator= (ObjectPtr value)
 
bool IsCanonical () const
 
void SetCanonical () const
 
void ClearCanonical () const
 
bool IsImmutable () const
 
void SetImmutable () const
 
void ClearImmutable () const
 
intptr_t GetClassId () const
 
ClassPtr clazz () const
 
 CLASS_LIST_FOR_HANDLES (DEFINE_CLASS_TESTER)
 
bool IsNull () const
 
virtual const char * ToCString () const
 
void PrintJSON (JSONStream *stream, bool ref=true) const
 
virtual void PrintJSONImpl (JSONStream *stream, bool ref) const
 
void PrintImplementationFields (JSONStream *stream) const
 
virtual void PrintImplementationFieldsImpl (const JSONArray &jsarr_fields) const
 
virtual const char * JSONType () const
 
virtual StringPtr DictionaryName () const
 
bool IsNew () const
 
bool IsOld () const
 
bool InVMIsolateHeap () const
 
void Print () const
 

Static Public Member Functions

static intptr_t LengthOf (const WeakArrayPtr array)
 
static intptr_t length_offset ()
 
static intptr_t data_offset ()
 
static intptr_t element_offset (intptr_t index)
 
static intptr_t index_at_offset (intptr_t offset_in_bytes)
 
static constexpr bool IsValidLength (intptr_t length)
 
static intptr_t InstanceSize ()
 
static constexpr intptr_t InstanceSize (intptr_t len)
 
static WeakArrayPtr New (intptr_t length, Heap::Space space=Heap::kNew)
 
- Static Public Member Functions inherited from dart::Object
static ObjectPtr RawCast (ObjectPtr obj)
 
static constexpr bool ContainsCompressedPointers ()
 
static intptr_t tags_offset ()
 
static ObjectHandle ()
 
static ObjectHandle (Zone *zone)
 
static ObjectHandle (ObjectPtr ptr)
 
static ObjectHandle (Zone *zone, ObjectPtr ptr)
 
static ObjectZoneHandle ()
 
static ObjectZoneHandle (Zone *zone)
 
static ObjectZoneHandle (ObjectPtr ptr)
 
static ObjectZoneHandle (Zone *zone, ObjectPtr ptr)
 
static ObjectReadOnlyHandle ()
 
static ObjectPtr null ()
 
static void set_vm_isolate_snapshot_object_table (const Array &table)
 
static ClassPtr class_class ()
 
static ClassPtr dynamic_class ()
 
static ClassPtr void_class ()
 
static ClassPtr type_parameters_class ()
 
static ClassPtr type_arguments_class ()
 
static ClassPtr patch_class_class ()
 
static ClassPtr function_class ()
 
static ClassPtr closure_data_class ()
 
static ClassPtr ffi_trampoline_data_class ()
 
static ClassPtr field_class ()
 
static ClassPtr script_class ()
 
static ClassPtr library_class ()
 
static ClassPtr namespace_class ()
 
static ClassPtr kernel_program_info_class ()
 
static ClassPtr code_class ()
 
static ClassPtr instructions_class ()
 
static ClassPtr instructions_section_class ()
 
static ClassPtr instructions_table_class ()
 
static ClassPtr object_pool_class ()
 
static ClassPtr pc_descriptors_class ()
 
static ClassPtr code_source_map_class ()
 
static ClassPtr compressed_stackmaps_class ()
 
static ClassPtr var_descriptors_class ()
 
static ClassPtr exception_handlers_class ()
 
static ClassPtr context_class ()
 
static ClassPtr context_scope_class ()
 
static ClassPtr sentinel_class ()
 
static ClassPtr api_error_class ()
 
static ClassPtr language_error_class ()
 
static ClassPtr unhandled_exception_class ()
 
static ClassPtr unwind_error_class ()
 
static ClassPtr singletargetcache_class ()
 
static ClassPtr unlinkedcall_class ()
 
static ClassPtr monomorphicsmiablecall_class ()
 
static ClassPtr icdata_class ()
 
static ClassPtr megamorphic_cache_class ()
 
static ClassPtr subtypetestcache_class ()
 
static ClassPtr loadingunit_class ()
 
static ClassPtr weak_serialization_reference_class ()
 
static ClassPtr weak_array_class ()
 
static void InitNullAndBool (IsolateGroup *isolate_group)
 
static void Init (IsolateGroup *isolate_group)
 
static void InitVtables ()
 
static void FinishInit (IsolateGroup *isolate_group)
 
static void FinalizeVMIsolate (IsolateGroup *isolate_group)
 
static void FinalizeReadOnlyObject (ObjectPtr object)
 
static void Cleanup ()
 
static ErrorPtr Init (IsolateGroup *isolate_group, const uint8_t *kernel_buffer, intptr_t kernel_buffer_size)
 
static void MakeUnusedSpaceTraversable (const Object &obj, intptr_t original_size, intptr_t used_size)
 
static intptr_t InstanceSize ()
 
template<class FakeObject >
static void VerifyBuiltinVtable (intptr_t cid)
 
static void VerifyBuiltinVtables ()
 
static bool ShouldHaveImmutabilityBitSet (classid_t class_id)
 

Static Public Attributes

static constexpr intptr_t kBytesPerElement = kCompressedWordSize
 
static constexpr intptr_t kMaxElements = kSmiMax / kBytesPerElement
 
- Static Public Attributes inherited from dart::Object
static constexpr intptr_t kHashBits = 30
 
static const ClassId kClassId = kObjectCid
 

Friends

class Class
 
class Object
 

Additional Inherited Members

- Public Types inherited from dart::Object
enum  NameVisibility { kInternalName = 0 , kScrubbedName , kUserVisibleName }
 
enum class  NameDisambiguation { kYes , kNo }
 
using UntaggedObjectType = UntaggedObject
 
using ObjectPtrType = ObjectPtr
 
- Protected Member Functions inherited from dart::Object
 Object ()
 
uword raw_value () const
 
void setPtr (ObjectPtr value, intptr_t default_cid)
 
void CheckHandle () const
 
cpp_vtable vtable () const
 
void set_vtable (cpp_vtable value)
 
bool Contains (uword addr) const
 
template<typename type , std::memory_order order = std::memory_order_relaxed>
type LoadPointer (type const *addr) const
 
template<typename type , std::memory_order order = std::memory_order_relaxed>
void StorePointer (type const *addr, type value) const
 
template<typename type , typename compressed_type , std::memory_order order = std::memory_order_relaxed>
void StoreCompressedPointer (compressed_type const *addr, type value) const
 
template<typename type >
void StorePointerUnaligned (type const *addr, type value, Thread *thread) const
 
void StoreSmi (SmiPtr const *addr, SmiPtr value) const
 
template<typename FieldType >
void StoreSimd128 (const FieldType *addr, simd128_value_t value) const
 
template<typename FieldType >
FieldType LoadNonPointer (const FieldType *addr) const
 
template<typename FieldType , std::memory_order order>
FieldType LoadNonPointer (const FieldType *addr) const
 
template<typename FieldType , typename ValueType >
void StoreNonPointer (const FieldType *addr, ValueType value) const
 
template<typename FieldType , typename ValueType , std::memory_order order>
void StoreNonPointer (const FieldType *addr, ValueType value) const
 
template<typename FieldType >
FieldType * UnsafeMutableNonPointer (const FieldType *addr) const
 
 CLASS_LIST (STORE_NON_POINTER_ILLEGAL_TYPE)
 
void UnimplementedMethod () const
 
void AddCommonObjectProperties (JSONObject *jsobj, const char *protocol_type, bool ref) const
 
- Static Protected Member Functions inherited from dart::Object
static DART_NOINLINE ObjectHandleImpl (Zone *zone, ObjectPtr ptr, intptr_t default_cid)
 
static DART_NOINLINE ObjectZoneHandleImpl (Zone *zone, ObjectPtr ptr, intptr_t default_cid)
 
static DART_NOINLINE ObjectReadOnlyHandleImpl (intptr_t cid)
 
static ObjectPtr Allocate (intptr_t cls_id, intptr_t size, Heap::Space space, bool compressed, uword ptr_field_start_offset, uword ptr_field_end_offset)
 
template<typename T >
static DART_FORCE_INLINE T::ObjectPtrType Allocate (Heap::Space space)
 
template<typename T >
static DART_FORCE_INLINE T::ObjectPtrType Allocate (Heap::Space space, intptr_t elements)
 
template<typename T >
static DART_FORCE_INLINE T::ObjectPtrType AllocateVariant (intptr_t class_id, Heap::Space space)
 
template<typename T >
static DART_FORCE_INLINE T::ObjectPtrType AllocateVariant (intptr_t class_id, Heap::Space space, intptr_t elements)
 
static constexpr intptr_t RoundedAllocationSize (intptr_t size)
 
static ObjectPtr Clone (const Object &orig, Heap::Space space, bool load_with_relaxed_atomics=false)
 
template<typename T >
static DART_FORCE_INLINE uword from_offset ()
 
template<typename T >
static DART_FORCE_INLINE uword to_offset (intptr_t length=0)
 
- Protected Attributes inherited from dart::Object
ObjectPtr ptr_
 

Detailed Description

Definition at line 6695 of file object.h.

Member Function Documentation

◆ At()

ObjectPtr dart::WeakArray::At ( intptr_t  index) const
inline

Definition at line 6722 of file object.h.

6722{ return untag()->element(index); }
raw_obj untag() -> num_entries()) VARIABLE_COMPRESSED_VISITOR(Array, Smi::Value(raw_obj->untag() ->length())) VARIABLE_COMPRESSED_VISITOR(TypedData, TypedData::ElementSizeInBytes(raw_obj->GetClassId()) *Smi::Value(raw_obj->untag() ->length())) VARIABLE_COMPRESSED_VISITOR(Record, RecordShape(raw_obj->untag() ->shape()).num_fields()) VARIABLE_NULL_VISITOR(CompressedStackMaps, CompressedStackMaps::PayloadSizeOf(raw_obj)) VARIABLE_NULL_VISITOR(OneByteString, Smi::Value(raw_obj->untag() ->length())) VARIABLE_NULL_VISITOR(TwoByteString, Smi::Value(raw_obj->untag() ->length())) intptr_t UntaggedField::VisitFieldPointers(FieldPtr raw_obj, ObjectPointerVisitor *visitor)
Definition: raw_object.cc:558

◆ AtAcquire()

ObjectPtr dart::WeakArray::AtAcquire ( intptr_t  index) const
inline

Definition at line 6728 of file object.h.

6728 {
6729 return untag()->element<std::memory_order_acquire>(index);
6730 }

◆ data_offset()

static intptr_t dart::WeakArray::data_offset ( )
inlinestatic

Definition at line 6703 of file object.h.

6703 {
6704 return OFFSET_OF_RETURNED_VALUE(UntaggedWeakArray, data);
6705 }
static int8_t data[kExtLength]
#define OFFSET_OF_RETURNED_VALUE(type, accessor)
Definition: globals.h:143

◆ element_offset()

static intptr_t dart::WeakArray::element_offset ( intptr_t  index)
inlinestatic

Definition at line 6706 of file object.h.

6706 {
6707 return OFFSET_OF_RETURNED_VALUE(UntaggedWeakArray, data) +
6708 kBytesPerElement * index;
6709 }
static constexpr intptr_t kBytesPerElement
Definition: object.h:6735

◆ index_at_offset()

static intptr_t dart::WeakArray::index_at_offset ( intptr_t  offset_in_bytes)
inlinestatic

Definition at line 6710 of file object.h.

6710 {
6711 intptr_t index = (offset_in_bytes - data_offset()) / kBytesPerElement;
6712 ASSERT(index >= 0);
6713 return index;
6714 }
static intptr_t data_offset()
Definition: object.h:6703
#define ASSERT(E)

◆ InstanceSize() [1/2]

static intptr_t dart::WeakArray::InstanceSize ( )
inlinestatic

Definition at line 6742 of file object.h.

6742 {
6743 ASSERT(sizeof(UntaggedWeakArray) ==
6744 OFFSET_OF_RETURNED_VALUE(UntaggedWeakArray, data));
6745 return 0;
6746 }

◆ InstanceSize() [2/2]

static constexpr intptr_t dart::WeakArray::InstanceSize ( intptr_t  len)
inlinestaticconstexpr

Definition at line 6748 of file object.h.

6748 {
6749 return RoundedAllocationSize(sizeof(UntaggedWeakArray) +
6750 (len * kBytesPerElement));
6751 }
static constexpr intptr_t RoundedAllocationSize(intptr_t size)
Definition: object.h:758

◆ IsValidLength()

static constexpr bool dart::WeakArray::IsValidLength ( intptr_t  length)
inlinestaticconstexpr

Definition at line 6738 of file object.h.

6738 {
6739 return 0 <= length && length <= kMaxElements;
6740 }
static constexpr intptr_t kMaxElements
Definition: object.h:6736
size_t length

◆ Length()

intptr_t dart::WeakArray::Length ( ) const
inline

Definition at line 6697 of file object.h.

6697{ return LengthOf(ptr()); }
ObjectPtr ptr() const
Definition: object.h:332
static intptr_t LengthOf(const WeakArrayPtr array)
Definition: object.h:13299

◆ length_offset()

static intptr_t dart::WeakArray::length_offset ( )
inlinestatic

Definition at line 6700 of file object.h.

6700 {
6701 return OFFSET_OF(UntaggedWeakArray, length_);
6702 }
#define OFFSET_OF(type, field)
Definition: globals.h:138

◆ LengthOf()

intptr_t dart::WeakArray::LengthOf ( const WeakArrayPtr  array)
inlinestatic

Definition at line 13299 of file object.h.

13299 {
13300 return Smi::Value(array->untag()->length());
13301}
intptr_t Value() const
Definition: object.h:9990

◆ New()

WeakArrayPtr dart::WeakArray::New ( intptr_t  length,
Heap::Space  space = Heap::kNew 
)
static

Definition at line 17533 of file object.cc.

17533 {
17535 if (!IsValidLength(length)) {
17536 // This should be caught before we reach here.
17537 FATAL("Fatal error in WeakArray::New: invalid len %" Pd "\n", length);
17538 }
17539 auto raw = Object::Allocate<WeakArray>(space, length);
17540 NoSafepointScope no_safepoint;
17541 raw->untag()->set_length(Smi::New(length));
17542 return raw;
17543}
static ObjectPtr null()
Definition: object.h:433
static ClassPtr weak_array_class()
Definition: object.h:570
static SmiPtr New(intptr_t value)
Definition: object.h:10006
static constexpr bool IsValidLength(intptr_t length)
Definition: object.h:6738
#define FATAL(error)
#define Pd
Definition: globals.h:408

◆ SetAt()

void dart::WeakArray::SetAt ( intptr_t  index,
const Object value 
) const
inline

Definition at line 6723 of file object.h.

6723 {
6724 untag()->set_element(index, value.ptr());
6725 }
uint8_t value

◆ SetAtRelease()

void dart::WeakArray::SetAtRelease ( intptr_t  index,
const Object value 
) const
inline

Definition at line 6731 of file object.h.

6731 {
6732 untag()->set_element<std::memory_order_release>(index, value.ptr());
6733 }

Friends And Related Function Documentation

◆ Class

friend class Class
friend

Definition at line 6757 of file object.h.

◆ Object

friend class Object
friend

Definition at line 6758 of file object.h.

Member Data Documentation

◆ kBytesPerElement

constexpr intptr_t dart::WeakArray::kBytesPerElement = kCompressedWordSize
staticconstexpr

Definition at line 6735 of file object.h.

◆ kMaxElements

constexpr intptr_t dart::WeakArray::kMaxElements = kSmiMax / kBytesPerElement
staticconstexpr

Definition at line 6736 of file object.h.


The documentation for this class was generated from the following files: