#include <object.h>

Inheritance diagram for dart::Context:

Classes
struct	ArrayTraits

Public Member Functions
ContextPtr	parent () const

void	set_parent (const Context &parent) const

intptr_t	num_variables () const

ObjectPtr	At (intptr_t context_index) const

void	SetAt (intptr_t context_index, const Object &value) const

intptr_t	GetLevel () const

void	Dump (int indent=0) 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	parent_offset ()

static intptr_t	num_variables_offset ()

static intptr_t	NumVariables (const ContextPtr context)

static intptr_t	variable_offset (intptr_t context_index)

static bool	IsValidLength (intptr_t len)

static intptr_t	InstanceSize ()

static intptr_t	InstanceSize (intptr_t len)

static ContextPtr	New (intptr_t num_variables, 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 Object &	Handle ()

static Object &	Handle (Zone *zone)

static Object &	Handle (ObjectPtr ptr)

static Object &	Handle (Zone *zone, ObjectPtr ptr)

static Object &	ZoneHandle ()

static Object &	ZoneHandle (Zone *zone)

static Object &	ZoneHandle (ObjectPtr ptr)

static Object &	ZoneHandle (Zone *zone, ObjectPtr ptr)

static Object *	ReadOnlyHandle ()

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 Object &	HandleImpl (Zone *zone, ObjectPtr ptr, intptr_t default_cid)

static DART_NOINLINE Object &	ZoneHandleImpl (Zone *zone, ObjectPtr ptr, intptr_t default_cid)

static DART_NOINLINE Object *	ReadOnlyHandleImpl (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 7375 of file object.h.

Member Function Documentation

◆ At()

ObjectPtr dart::Context::At ( intptr_t context_index ) const

inline

Definition at line 7393 of file object.h.

                                             {
    return untag()->element(context_index);
  }

◆ Dump()

void Context::Dump ( int indent = 0 ) const

Definition at line 18598 of file object.cc.

                                   {
  if (IsNull()) {
    IndentN(indent);
    THR_Print("Context@null\n");
    return;
  }
 
  IndentN(indent);
  THR_Print("Context vars(%" Pd ") {\n", num_variables());
  Object& obj = Object::Handle();
  for (intptr_t i = 0; i < num_variables(); i++) {
    IndentN(indent + 2);
    obj = At(i);
    const char* s = obj.ToCString();
    if (strlen(s) > 50) {
      THR_Print("[%" Pd "] = [first 50 chars:] %.50s...\n", i, s);
    } else {
      THR_Print("[%" Pd "] = %s\n", i, s);
    }
  }
 
  const Context& parent_ctx = Context::Handle(parent());
  if (!parent_ctx.IsNull()) {
    parent_ctx.Dump(indent + 2);
  }
  IndentN(indent);
  THR_Print("}\n");
}

◆ GetLevel()

intptr_t Context::GetLevel ( ) const

Definition at line 18551 of file object.cc.

                                 {
  intptr_t level = 0;
  Context& parent_ctx = Context::Handle(parent());
  while (!parent_ctx.IsNull()) {
    level++;
    parent_ctx = parent_ctx.parent();
  }
  return level;
}

◆ InstanceSize() [1/2]

static intptr_t dart::Context::InstanceSize ( )

inlinestatic

Definition at line 7419 of file object.h.

                                 {
    ASSERT(sizeof(UntaggedContext) ==
           OFFSET_OF_RETURNED_VALUE(UntaggedContext, data));
    return 0;
  }

◆ InstanceSize() [2/2]

static intptr_t dart::Context::InstanceSize ( intptr_t len )

inlinestatic

Definition at line 7425 of file object.h.

                                             {
    ASSERT(IsValidLength(len));
    return RoundedAllocationSize(sizeof(UntaggedContext) +
                                 (len * kBytesPerElement));
  }

◆ IsValidLength()

static bool dart::Context::IsValidLength ( intptr_t len )

inlinestatic

Definition at line 7415 of file object.h.

                                          {
    return 0 <= len && len <= compiler::target::Context::kMaxElements;
  }

◆ New()

ContextPtr Context::New	(	intptr_t	num_variables,
		Heap::Space	space = `Heap::kNew`
	)

static

Definition at line 18561 of file object.cc.

                                                               {
  ASSERT(num_variables >= 0);
  ASSERT(Object::context_class() != Class::null());
 
  if (!IsValidLength(num_variables)) {
    // This should be caught before we reach here.
    FATAL("Fatal error in Context::New: invalid num_variables %" Pd "\n",
          num_variables);
  }
  auto raw = Object::Allocate<Context>(space, num_variables);
  NoSafepointScope no_safepoint;
  raw->untag()->num_variables_ = num_variables;
  return raw;
}

◆ num_variables()

intptr_t dart::Context::num_variables ( ) const

inline

Definition at line 7385 of file object.h.

7385{ return untag()->num_variables_; }

◆ num_variables_offset()

static intptr_t dart::Context::num_variables_offset ( )

inlinestatic

Definition at line 7386 of file object.h.

                                         {
    return OFFSET_OF(UntaggedContext, num_variables_);
  }

◆ NumVariables()

static intptr_t dart::Context::NumVariables ( const ContextPtr context )

inlinestatic

Definition at line 7389 of file object.h.

                                                         {
    return context->untag()->num_variables_;
  }

◆ parent()

ContextPtr dart::Context::parent ( ) const

inline

Definition at line 7377 of file object.h.

7377{ return untag()->parent(); }

◆ parent_offset()

static intptr_t dart::Context::parent_offset ( )

inlinestatic

Definition at line 7381 of file object.h.

                                  {
    return OFFSET_OF(UntaggedContext, parent_);
  }

◆ set_parent()

void dart::Context::set_parent ( const Context & parent ) const

inline

Definition at line 7378 of file object.h.

                                               {
    untag()->set_parent(parent.ptr());
  }

◆ SetAt()

void Context::SetAt	(	intptr_t	context_index,
		const Object &	value
	)		const

inline

Definition at line 13277 of file object.h.

                                                             {
  untag()->set_element(index, value.ptr());
}

◆ variable_offset()

static intptr_t dart::Context::variable_offset ( intptr_t context_index )

inlinestatic

Definition at line 7410 of file object.h.

                                                          {
    return OFFSET_OF_RETURNED_VALUE(UntaggedContext, data) +
           (kBytesPerElement * context_index);
  }

Friends And Related Symbol Documentation

◆ Class

friend class Class

friend

Definition at line 7439 of file object.h.

◆ Object

friend class Object

friend

Definition at line 7440 of file object.h.

Member Data Documentation

◆ kBytesPerElement

constexpr intptr_t dart::Context::kBytesPerElement = kCompressedWordSize

staticconstexpr

Definition at line 7402 of file object.h.

◆ kMaxElements

constexpr intptr_t dart::Context::kMaxElements = kSmiMax / kBytesPerElement

staticconstexpr

Definition at line 7403 of file object.h.

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

third_party/dart-lang/sdk/runtime/vm/object.h
third_party/dart-lang/sdk/runtime/vm/object.cc

Classes

Public Member Functions

Static Public Member Functions

Static Public Attributes

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ At()

◆ Dump()

◆ GetLevel()

◆ InstanceSize() [1/2]

◆ InstanceSize() [2/2]

◆ IsValidLength()

◆ New()

◆ num_variables()

◆ num_variables_offset()

◆ NumVariables()

◆ parent()

◆ parent_offset()

◆ set_parent()

◆ SetAt()

◆ variable_offset()

Friends And Related Symbol Documentation

◆ Class

◆ Object

Member Data Documentation

◆ kBytesPerElement

◆ kMaxElements