#include <objects.h>

Inheritance diagram for v8::internal::DebugInfo:

Collaboration diagram for v8::internal::DebugInfo:

Public Member Functions
bool	HasBreakPoint (int code_position)

Object *	GetBreakPointInfo (int code_position)

Object *	GetBreakPointObjects (int code_position)

int	GetBreakPointCount ()

Public Member Functions inherited from v8::internal::Struct
void	InitializeBody (int object_size)

Public Member Functions inherited from v8::internal::HeapObject
Map *	map () const

void	set_map (Map *value)

void	set_map_no_write_barrier (Map *value)

Map *	synchronized_map ()

MapWord	synchronized_map_word () const

void	synchronized_set_map (Map *value)

void	synchronized_set_map_no_write_barrier (Map *value)

void	synchronized_set_map_word (MapWord map_word)

MapWord	map_word () const

void	set_map_word (MapWord map_word)

Heap *	GetHeap () const

Isolate *	GetIsolate () const

Address	address ()

void	Iterate (ObjectVisitor *v)

void	IterateBody (InstanceType type, int object_size, ObjectVisitor *v)

int	Size ()

bool	MayContainRawValues ()

int	SizeFromMap (Map *map)

WriteBarrierMode	GetWriteBarrierMode (const DisallowHeapAllocation &promise)

void	HeapObjectShortPrint (OStream &os)

	STATIC_ASSERT (kMapOffset==Internals::kHeapObjectMapOffset)

Public Member Functions inherited from v8::internal::Object
bool	IsObject () const

	INLINE (bool IsFixedArrayBase() const)

	INLINE (bool IsExternal() const)

	INLINE (bool IsAccessorInfo() const)

	INLINE (bool IsStruct() const)

	INLINE (bool IsSpecObject()) const

	INLINE (bool IsSpecFunction()) const

	INLINE (bool IsTemplateInfo()) const

	INLINE (bool IsNameDictionary() const)

	INLINE (bool IsSeededNumberDictionary() const)

	INLINE (bool IsUnseededNumberDictionary() const)

	INLINE (bool IsOrderedHashSet() const)

	INLINE (bool IsOrderedHashMap() const)

bool	IsCallable () const

	INLINE (bool IsUndefined() const)

	INLINE (bool IsNull() const)

	INLINE (bool IsTheHole() const)

	INLINE (bool IsException() const)

	INLINE (bool IsUninitialized() const)

	INLINE (bool IsTrue() const)

	INLINE (bool IsFalse() const)

	INLINE (bool IsArgumentsMarker() const)

	INLINE (bool IsFiller() const)

double	Number ()

	INLINE (bool IsNaN() const)

	INLINE (bool IsMinusZero() const)

bool	ToInt32 (int32_t *value)

bool	ToUint32 (uint32_t *value)

Representation	OptimalRepresentation ()

bool	FitsRepresentation (Representation representation)

Handle< HeapType >	OptimalType (Isolate *isolate, Representation representation)

bool	HasValidElements ()

bool	HasSpecificClassOf (String *name)

bool	BooleanValue ()

Object *	GetHash ()

bool	SameValue (Object *other)

bool	SameValueZero (Object *other)

bool	ToArrayIndex (uint32_t *index)

bool	IsStringObjectWithCharacterAt (uint32_t index)

void	VerifyApiCallResultType ()

void	ShortPrint (FILE *out=stdout)

void	ShortPrint (StringStream *accumulator)

Static Public Member Functions
static void	ClearBreakPoint (Handle< DebugInfo > debug_info, int code_position, Handle< Object > break_point_object)

static void	SetBreakPoint (Handle< DebugInfo > debug_info, int code_position, int source_position, int statement_position, Handle< Object > break_point_object)

static Object *	FindBreakPointInfo (Handle< DebugInfo > debug_info, Handle< Object > break_point_object)

Static Public Member Functions inherited from v8::internal::HeapObject
static HeapObject *	FromAddress (Address address)

static Object **	RawField (HeapObject *obj, int offset)

static void	UpdateMapCodeCache (Handle< HeapObject > object, Handle< Name > name, Handle< Code > code)

Static Public Member Functions inherited from v8::internal::Object
static Handle< Object >	NewStorageFor (Isolate *isolate, Handle< Object > object, Representation representation)

static Handle< Object >	WrapForRead (Isolate *isolate, Handle< Object > object, Representation representation)

static MaybeHandle< JSReceiver >	ToObject (Isolate *isolate, Handle< Object > object)

static MaybeHandle< JSReceiver >	ToObject (Isolate *isolate, Handle< Object > object, Handle< Context > context)

static MUST_USE_RESULT MaybeHandle< Smi >	ToSmi (Isolate *isolate, Handle< Object > object)

static MUST_USE_RESULT MaybeHandle< Object >	GetProperty (LookupIterator *it)

static MUST_USE_RESULT MaybeHandle< Object >	SetProperty (Handle< Object > object, Handle< Name > key, Handle< Object > value, StrictMode strict_mode, StoreFromKeyed store_mode=MAY_BE_STORE_FROM_KEYED)

static MUST_USE_RESULT MaybeHandle< Object >	SetProperty (LookupIterator *it, Handle< Object > value, StrictMode strict_mode, StoreFromKeyed store_mode, StorePropertyMode data_store_mode=NORMAL_PROPERTY)

static MUST_USE_RESULT MaybeHandle< Object >	WriteToReadOnlyProperty (LookupIterator *it, Handle< Object > value, StrictMode strict_mode)

static Handle< Object >	SetDataProperty (LookupIterator *it, Handle< Object > value)

static MUST_USE_RESULT MaybeHandle< Object >	AddDataProperty (LookupIterator *it, Handle< Object > value, PropertyAttributes attributes, StrictMode strict_mode, StoreFromKeyed store_mode)

static MUST_USE_RESULT MaybeHandle< Object >	GetPropertyOrElement (Handle< Object > object, Handle< Name > key)

static MUST_USE_RESULT MaybeHandle< Object >	GetProperty (Isolate isolate, Handle< Object > object, const char key)

static MUST_USE_RESULT MaybeHandle< Object >	GetProperty (Handle< Object > object, Handle< Name > key)

static MUST_USE_RESULT MaybeHandle< Object >	GetPropertyWithAccessor (Handle< Object > receiver, Handle< Name > name, Handle< JSObject > holder, Handle< Object > structure)

static MUST_USE_RESULT MaybeHandle< Object >	SetPropertyWithAccessor (Handle< Object > receiver, Handle< Name > name, Handle< Object > value, Handle< JSObject > holder, Handle< Object > structure, StrictMode strict_mode)

static MUST_USE_RESULT MaybeHandle< Object >	GetPropertyWithDefinedGetter (Handle< Object > receiver, Handle< JSReceiver > getter)

static MUST_USE_RESULT MaybeHandle< Object >	SetPropertyWithDefinedSetter (Handle< Object > receiver, Handle< JSReceiver > setter, Handle< Object > value)

static MUST_USE_RESULT MaybeHandle< Object >	GetElement (Isolate *isolate, Handle< Object > object, uint32_t index)

static MUST_USE_RESULT MaybeHandle< Object >	GetElementWithReceiver (Isolate *isolate, Handle< Object > object, Handle< Object > receiver, uint32_t index)

static Handle< Smi >	GetOrCreateHash (Isolate *isolate, Handle< Object > object)

Static Public Attributes
static const int	kSharedFunctionInfoIndex = Struct::kHeaderSize

static const int	kOriginalCodeIndex = kSharedFunctionInfoIndex + kPointerSize

static const int	kPatchedCodeIndex = kOriginalCodeIndex + kPointerSize

static const int	kActiveBreakPointsCountIndex

static const int	kBreakPointsStateIndex

static const int	kSize = kBreakPointsStateIndex + kPointerSize

static const int	kEstimatedNofBreakPointsInFunction = 16

Static Public Attributes inherited from v8::internal::HeapObject
static const int	kMapOffset = Object::kHeaderSize

static const int	kHeaderSize = kMapOffset + kPointerSize

Static Public Attributes inherited from v8::internal::Object
static const int	kHeaderSize = 0

Private Member Functions
int	GetBreakPointInfoIndex (int code_position)

	DISALLOW_IMPLICIT_CONSTRUCTORS (DebugInfo)

Static Private Attributes
static const int	kNoBreakPointInfo = -1

Additional Inherited Members
Public Types inherited from v8::internal::Object
enum	StoreFromKeyed { MAY_BE_STORE_FROM_KEYED , CERTAINLY_NOT_STORE_FROM_KEYED }

enum	StorePropertyMode { NORMAL_PROPERTY , SUPER_PROPERTY }

Protected Member Functions inherited from v8::internal::HeapObject
void	IteratePointers (ObjectVisitor *v, int start, int end)

void	IteratePointer (ObjectVisitor *v, int offset)

void	IterateNextCodeLink (ObjectVisitor *v, int offset)

Detailed Description

Definition at line 10574 of file objects.h.

Member Function Documentation

◆ ClearBreakPoint()

void v8::internal::DebugInfo::ClearBreakPoint	(	Handle< DebugInfo >	debug_info,
		int	code_position,
		Handle< Object >	break_point_object
	)

static

Definition at line 15891 of file objects.cc.

                                                                    {
   Handle<Object> break_point_info(debug_info->GetBreakPointInfo(code_position),
                                   debug_info->GetIsolate());
   if (break_point_info->IsUndefined()) return;
   BreakPointInfo::ClearBreakPoint(
       Handle<BreakPointInfo>::cast(break_point_info),
       break_point_object);
 }

References v8::internal::BreakPointInfo::ClearBreakPoint().

Referenced by v8::internal::BreakLocationIterator::ClearBreakPoint().

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◆ DISALLOW_IMPLICIT_CONSTRUCTORS()

v8::internal::DebugInfo::DISALLOW_IMPLICIT_CONSTRUCTORS ( DebugInfo )

private

◆ FindBreakPointInfo()

Object * v8::internal::DebugInfo::FindBreakPointInfo	(	Handle< DebugInfo >	debug_info,
		Handle< Object >	break_point_object
	)

static

Definition at line 15983 of file objects.cc.

                                                                          {
   Heap* heap = debug_info->GetHeap();
   if (debug_info->break_points()->IsUndefined()) return heap->undefined_value();
   for (int i = 0; i < debug_info->break_points()->length(); i++) {
     if (!debug_info->break_points()->get(i)->IsUndefined()) {
       Handle<BreakPointInfo> break_point_info =
           Handle<BreakPointInfo>(BreakPointInfo::cast(
               debug_info->break_points()->get(i)));
       if (BreakPointInfo::HasBreakPointObject(break_point_info,
                                               break_point_object)) {
         return *break_point_info;
       }
     }
   }
   return heap->undefined_value();
 }

References v8::internal::BreakPointInfo::HasBreakPointObject().

Referenced by v8::internal::Debug::ClearBreakPoint().

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◆ GetBreakPointCount()

int v8::internal::DebugInfo::GetBreakPointCount ( )

Definition at line 15969 of file objects.cc.

                                   {
   if (break_points()->IsUndefined()) return 0;
   int count = 0;
   for (int i = 0; i < break_points()->length(); i++) {
     if (!break_points()->get(i)->IsUndefined()) {
       BreakPointInfo* break_point_info =
           BreakPointInfo::cast(break_points()->get(i));
       count += break_point_info->GetBreakPointCount();
     }
   }
   return count;
 }

References v8::internal::BreakPointInfo::GetBreakPointCount().

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◆ GetBreakPointInfo()

Object * v8::internal::DebugInfo::GetBreakPointInfo ( int code_position )

Definition at line 15880 of file objects.cc.

                                                       {
   // Find the index of the break point info object for this code position.
   int index = GetBreakPointInfoIndex(code_position);
  
   // Return the break point info object if any.
   if (index == kNoBreakPointInfo) return GetHeap()->undefined_value();
   return BreakPointInfo::cast(break_points()->get(index));
 }

References GetBreakPointInfoIndex(), v8::internal::HeapObject::GetHeap(), and kNoBreakPointInfo.

Referenced by GetBreakPointObjects(), and HasBreakPoint().

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◆ GetBreakPointInfoIndex()

int v8::internal::DebugInfo::GetBreakPointInfoIndex ( int code_position )

private

Definition at line 16004 of file objects.cc.

                                                        {
   if (break_points()->IsUndefined()) return kNoBreakPointInfo;
   for (int i = 0; i < break_points()->length(); i++) {
     if (!break_points()->get(i)->IsUndefined()) {
       BreakPointInfo* break_point_info =
           BreakPointInfo::cast(break_points()->get(i));
       if (break_point_info->code_position()->value() == code_position) {
         return i;
       }
     }
   }
   return kNoBreakPointInfo;
 }

References kNoBreakPointInfo.

Referenced by GetBreakPointInfo().

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◆ GetBreakPointObjects()

Object * v8::internal::DebugInfo::GetBreakPointObjects ( int code_position )

Definition at line 15959 of file objects.cc.

                                                          {
   Object* break_point_info = GetBreakPointInfo(code_position);
   if (break_point_info->IsUndefined()) {
     return GetHeap()->undefined_value();
   }
   return BreakPointInfo::cast(break_point_info)->break_point_objects();
 }

References GetBreakPointInfo(), and v8::internal::HeapObject::GetHeap().

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◆ HasBreakPoint()

bool v8::internal::DebugInfo::HasBreakPoint ( int code_position )

Definition at line 15868 of file objects.cc.

                                                {
   // Get the break point info object for this code position.
   Object* break_point_info = GetBreakPointInfo(code_position);
  
   // If there is no break point info object or no break points in the break
   // point info object there is no break point at this code position.
   if (break_point_info->IsUndefined()) return false;
   return BreakPointInfo::cast(break_point_info)->GetBreakPointCount() > 0;
 }

References GetBreakPointInfo().

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◆ SetBreakPoint()

void v8::internal::DebugInfo::SetBreakPoint	(	Handle< DebugInfo >	debug_info,
		int	code_position,
		int	source_position,
		int	statement_position,
		Handle< Object >	break_point_object
	)

static

Definition at line 15903 of file objects.cc.

                                                                  {
   Isolate* isolate = debug_info->GetIsolate();
   Handle<Object> break_point_info(debug_info->GetBreakPointInfo(code_position),
                                   isolate);
   if (!break_point_info->IsUndefined()) {
     BreakPointInfo::SetBreakPoint(
         Handle<BreakPointInfo>::cast(break_point_info),
         break_point_object);
     return;
   }
  
   // Adding a new break point for a code position which did not have any
   // break points before. Try to find a free slot.
   int index = kNoBreakPointInfo;
   for (int i = 0; i < debug_info->break_points()->length(); i++) {
     if (debug_info->break_points()->get(i)->IsUndefined()) {
       index = i;
       break;
     }
   }
   if (index == kNoBreakPointInfo) {
     // No free slot - extend break point info array.
     Handle<FixedArray> old_break_points =
         Handle<FixedArray>(FixedArray::cast(debug_info->break_points()));
     Handle<FixedArray> new_break_points =
         isolate->factory()->NewFixedArray(
             old_break_points->length() +
             DebugInfo::kEstimatedNofBreakPointsInFunction);
  
     debug_info->set_break_points(*new_break_points);
     for (int i = 0; i < old_break_points->length(); i++) {
       new_break_points->set(i, old_break_points->get(i));
     }
     index = old_break_points->length();
   }
   DCHECK(index != kNoBreakPointInfo);
  
   // Allocate new BreakPointInfo object and set the break point.
   Handle<BreakPointInfo> new_break_point_info = Handle<BreakPointInfo>::cast(
       isolate->factory()->NewStruct(BREAK_POINT_INFO_TYPE));
   new_break_point_info->set_code_position(Smi::FromInt(code_position));
   new_break_point_info->set_source_position(Smi::FromInt(source_position));
   new_break_point_info->
       set_statement_position(Smi::FromInt(statement_position));
   new_break_point_info->set_break_point_objects(
       isolate->heap()->undefined_value());
   BreakPointInfo::SetBreakPoint(new_break_point_info, break_point_object);
   debug_info->break_points()->set(index, *new_break_point_info);
 }

References v8::internal::BREAK_POINT_INFO_TYPE, v8::internal::Handle< T >::cast(), DCHECK, v8::internal::Isolate::factory(), v8::internal::Smi::FromInt(), v8::internal::Isolate::heap(), kEstimatedNofBreakPointsInFunction, kNoBreakPointInfo, and v8::internal::BreakPointInfo::SetBreakPoint().

Referenced by v8::internal::BreakLocationIterator::SetBreakPoint().

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Member Data Documentation

◆ kActiveBreakPointsCountIndex

const int v8::internal::DebugInfo::kActiveBreakPointsCountIndex

static

Initial value:

=

kPatchedCodeIndex + kPointerSize

v8::internal::DebugInfo::kPatchedCodeIndex

static const int kPatchedCodeIndex

Definition: objects.h:10614

v8::internal::kPointerSize

const int kPointerSize

Definition: globals.h:129

Definition at line 10615 of file objects.h.

◆ kBreakPointsStateIndex

const int v8::internal::DebugInfo::kBreakPointsStateIndex

static

Initial value:

=

kActiveBreakPointsCountIndex + kPointerSize

v8::internal::DebugInfo::kActiveBreakPointsCountIndex

static const int kActiveBreakPointsCountIndex

Definition: objects.h:10615

Definition at line 10617 of file objects.h.

◆ kEstimatedNofBreakPointsInFunction

const int v8::internal::DebugInfo::kEstimatedNofBreakPointsInFunction = 16

static

Definition at line 10621 of file objects.h.

Referenced by SetBreakPoint().

◆ kNoBreakPointInfo

const int v8::internal::DebugInfo::kNoBreakPointInfo = -1

staticprivate

Definition at line 10624 of file objects.h.

Referenced by GetBreakPointInfo(), GetBreakPointInfoIndex(), and SetBreakPoint().

◆ kOriginalCodeIndex

const int v8::internal::DebugInfo::kOriginalCodeIndex = kSharedFunctionInfoIndex + kPointerSize

static

Definition at line 10613 of file objects.h.

◆ kPatchedCodeIndex

const int v8::internal::DebugInfo::kPatchedCodeIndex = kOriginalCodeIndex + kPointerSize

static

Definition at line 10614 of file objects.h.

◆ kSharedFunctionInfoIndex

const int v8::internal::DebugInfo::kSharedFunctionInfoIndex = Struct::kHeaderSize

static

Definition at line 10612 of file objects.h.

◆ kSize

const int v8::internal::DebugInfo::kSize = kBreakPointsStateIndex + kPointerSize

static

Definition at line 10619 of file objects.h.

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

/mnt/V8SourceCode/src/objects.h
/mnt/V8SourceCode/src/objects.cc

Public Member Functions

Static Public Member Functions

Static Public Attributes

Private Member Functions

Static Private Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ ClearBreakPoint()

◆ DISALLOW_IMPLICIT_CONSTRUCTORS()

◆ FindBreakPointInfo()

◆ GetBreakPointCount()

◆ GetBreakPointInfo()

◆ GetBreakPointInfoIndex()

◆ GetBreakPointObjects()

◆ HasBreakPoint()

◆ SetBreakPoint()

Member Data Documentation

◆ kActiveBreakPointsCountIndex

◆ kBreakPointsStateIndex

◆ kEstimatedNofBreakPointsInFunction

◆ kNoBreakPointInfo

◆ kOriginalCodeIndex

◆ kPatchedCodeIndex

◆ kSharedFunctionInfoIndex

◆ kSize