v8::HeapGraphNode Class Reference

HeapGraphNode represents a node in a heap graph. More...

#include <v8-profiler.h>

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Public Types
enum	Type {   kHidden = 0 , kArray = 1 , kString = 2 , kObject = 3 ,   kCode = 4 , kClosure = 5 , kRegExp = 6 , kHeapNumber = 7 ,   kNative = 8 , kSynthetic = 9 , kConsString = 10 , kSlicedString = 11 ,   kSymbol = 12 }

Public Member Functions
Type	GetType () const
	Returns node type (see HeapGraphNode::Type). More...
Handle< String >	GetName () const
	Returns node name. More...
SnapshotObjectId	GetId () const
	Returns node id. More...
	V8_DEPRECATED ("Use GetShallowSize instead", int GetSelfSize() const)
	Returns node's own size, in bytes. More...
size_t	GetShallowSize () const
	Returns node's own size, in bytes. More...
int	GetChildrenCount () const
	Returns child nodes count of the node. More...
const HeapGraphEdge *	GetChild (int index) const
	Retrieves a child by index. More...

Detailed Description

HeapGraphNode represents a node in a heap graph.

Definition at line 219 of file v8-profiler.h.

Member Enumeration Documentation

Type

enum v8::HeapGraphNode::Type

Enumerator
kHidden
kArray
kString
kObject
kCode
kClosure
kRegExp
kHeapNumber
kNative
kSynthetic
kConsString
kSlicedString
kSymbol

Definition at line 221 of file v8-profiler.h.

            {
    kHidden = 0,         // Hidden node, may be filtered when shown to user.
    kArray = 1,          // An array of elements.
    kString = 2,         // A string.
    kObject = 3,         // A JS object (except for arrays and strings).
    kCode = 4,           // Compiled code.
    kClosure = 5,        // Function closure.
    kRegExp = 6,         // RegExp.
    kHeapNumber = 7,     // Number stored in the heap.
    kNative = 8,         // Native object (not from V8 heap).
    kSynthetic = 9,      // Synthetic object, usualy used for grouping
                         // snapshot items together.
    kConsString = 10,    // Concatenated string. A pair of pointers to strings.
    kSlicedString = 11,  // Sliced string. A fragment of another string.
    kSymbol = 12         // A Symbol (ES6).
  };

Member Function Documentation

GetChild()

const HeapGraphEdge * v8::HeapGraphNode::GetChild

(

int

index

)

const

Retrieves a child by index.

Definition at line 7297 of file api.cc.

                                                            {
  return reinterpret_cast<const HeapGraphEdge*>(
      ToInternal(this)->children()[index]);
}

References v8::ToInternal().

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GetChildrenCount()

int v8::HeapGraphNode::GetChildrenCount

(

)

const

Returns child nodes count of the node.

Definition at line 7292 of file api.cc.

                                          {
  return ToInternal(this)->children().length();
}

References v8::ToInternal().

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GetId()

SnapshotObjectId v8::HeapGraphNode::GetId

(

)

const

Returns node id.

For the same heap object, the id remains the same across all snapshots.

Definition at line 7275 of file api.cc.

                                            {
  return ToInternal(this)->id();
}

References v8::ToInternal().

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GetName()

Handle< String > v8::HeapGraphNode::GetName

(

)

const

Returns node name.

Depending on node's type this can be the name of the constructor (for objects), the name of the function (for closures), string value, or an empty string (for compiled code).

Definition at line 7268 of file api.cc.

                                            {
  i::Isolate* isolate = i::Isolate::Current();
  return ToApiHandle<String>(
      isolate->factory()->InternalizeUtf8String(ToInternal(this)->name()));
}

References v8::internal::Isolate::factory(), name, and v8::ToInternal().

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GetShallowSize()

size_t v8::HeapGraphNode::GetShallowSize

(

)

const

Returns node's own size, in bytes.

Definition at line 7287 of file api.cc.

                                           {
  return ToInternal(this)->self_size();
}

References v8::ToInternal().

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GetType()

HeapGraphNode::Type v8::HeapGraphNode::GetType

(

)

const

Returns node type (see HeapGraphNode::Type).

Definition at line 7263 of file api.cc.

                                               {
  return static_cast<HeapGraphNode::Type>(ToInternal(this)->type());
}

References v8::ToInternal().

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V8_DEPRECATED()

v8::HeapGraphNode::V8_DEPRECATED	(	"Use GetShallowSize instead"	,
		int GetSelfSize() const
	)

Returns node's own size, in bytes.

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

• /mnt/V8SourceCode/include/v8-profiler.h
• /mnt/V8SourceCode/src/api.cc