object_graph_copy.cc File Reference

#include "vm/object_graph_copy.h"
#include <memory>
#include "vm/dart_api_state.h"
#include "vm/flags.h"
#include "vm/heap/weak_table.h"
#include "vm/longjump.h"
#include "vm/object.h"
#include "vm/object_store.h"
#include "vm/snapshot.h"
#include "vm/symbols.h"
#include "vm/timeline.h"

Go to the source code of this file.

Classes
struct	dart::PtrTypes
struct	dart::HandleTypes
class	dart::SlowFromTo
class	dart::FastFromTo
class	dart::IdentityMap
class	dart::ForwardMapBase
class	dart::FastForwardMap
class	dart::SlowForwardMap
class	dart::ObjectCopyBase
class	dart::RetainingPath
class	dart::FastObjectCopyBase
class	dart::SlowObjectCopyBase
class	dart::ObjectCopy< Base >
class	dart::FastObjectCopy
class	dart::SlowObjectCopy
class	dart::ObjectGraphCopier

Namespaces
namespace	dart

Macros
#define	Z   zone_
#define	FOR_UNSUPPORTED_CLASSES(V)
#define	DO(V)
#define	DO(V)
#define	HANDLE_ILLEGAL_CASE(Type)
#define	COPY_TO(clazz)
#define	COPY_TO(clazz)   case kTypedData##clazz##Cid:
#define	COPY_TO(clazz)
#define	COPY_TO(clazz)   case kExternalTypedData##clazz##Cid:
#define	DEFINE_UNSUPPORTED(clazz)
#define	DO(V)

Functions
	dart::DEFINE_FLAG (bool, enable_fast_object_copy, true, "Enable fast path for fast object copy.")
	dart::DEFINE_FLAG (bool, gc_on_foc_slow_path, false, "Cause a GC when falling off the fast path for fast object copy.")
static DART_FORCE_INLINE ObjectPtr	dart::Marker ()
static DART_FORCE_INLINE bool	dart::CanShareObject (ObjectPtr obj, uword tags)
bool	dart::CanShareObjectAcrossIsolates (ObjectPtr obj)
static DART_FORCE_INLINE bool	dart::MightNeedReHashing (ObjectPtr object)
DART_FORCE_INLINE uword	dart::TagsFromUntaggedObject (UntaggedObject *obj)
DART_FORCE_INLINE void	dart::SetNewSpaceTaggingWord (ObjectPtr to, classid_t cid, uint32_t size)
DART_FORCE_INLINE ObjectPtr	dart::AllocateObject (intptr_t cid, intptr_t size, intptr_t allocated_bytes)
DART_FORCE_INLINE void	dart::UpdateLengthField (intptr_t cid, ObjectPtr from, ObjectPtr to)
void	dart::InitializeExternalTypedData (intptr_t cid, ExternalTypedDataPtr from, ExternalTypedDataPtr to)
template<typename T >
void	dart::CopyTypedDataBaseWithSafepointChecks (Thread *thread, const T &from, const T &to, intptr_t length)
void	dart::InitializeExternalTypedDataWithSafepointChecks (Thread *thread, intptr_t cid, const ExternalTypedData &from, const ExternalTypedData &to)
void	dart::InitializeTypedDataView (TypedDataViewPtr obj)
void	dart::FreeExternalTypedData (void *isolate_callback_data, void *buffer)
void	dart::FreeTransferablePeer (void *isolate_callback_data, void *peer)
static ObjectPtr	dart::Ptr (ObjectPtr obj)
static ObjectPtr	dart::Ptr (const Object &obj)
const char *	dart::FindRetainingPath (Zone *zone_, Isolate *isolate, const Object &from, const Object &to, TraversalRules traversal_rules)
ObjectPtr	dart::CopyMutableObjectGraph (const Object &object)

Variables
const char *	dart::kFastAllocationFailed = "fast allocation failed"

Macro Definition Documentation

COPY_TO [1/4]

#define COPY_TO

(

clazz

)

Value:

  case clazz::kClassId: {                                                      \
    typename Types::clazz casted_from = Types::Cast##clazz(from);              \
    typename Types::clazz casted_to = Types::Cast##clazz(to);                  \
    Copy##clazz(casted_from, casted_to);                                       \
    return;                                                                    \
  }

COPY_TO [2/4]

#define COPY_TO

(

clazz

)

case kTypedData##clazz##Cid:

COPY_TO [3/4]

#define COPY_TO

(

clazz

)

Value:

  case kTypedData##clazz##ViewCid:                                             \
  case kUnmodifiableTypedData##clazz##ViewCid:

COPY_TO [4/4]

#define COPY_TO

(

clazz

)

case kExternalTypedData##clazz##Cid:

DEFINE_UNSUPPORTED

#define DEFINE_UNSUPPORTED

(

clazz

)

Value:

  void Copy##clazz(typename Types::clazz from, typename Types::clazz to) {     \
      FATAL("Objects of type " #clazz " should not occur in object graphs");   \
  }

Definition at line 2099 of file object_graph_copy.cc.

                                                                     {     \
      FATAL("Objects of type " #clazz " should not occur in object graphs");   \
  }

DO [1/3]

#define DO

(

V

)

Value:

  using V = V##Ptr;                                                            \
  static Untagged##V* Untag##V(V##Ptr arg) { return arg.untag(); }             \
  static V##Ptr Get##V##Ptr(V##Ptr arg) { return arg; }                        \
  static V##Ptr Cast##V(ObjectPtr arg) { return dart::V::RawCast(arg); }

Definition at line 117 of file object_graph_copy.cc.

                                           { return arg.untag(); }             \
  static V##Ptr Get##V##Ptr(V##Ptr arg) { return arg; }                        \
  static V##Ptr Cast##V(ObjectPtr arg) { return dart::V::RawCast(arg); }

DO [2/3]

#define DO

(

V

)

Value:

  using V = const dart::V&;                                                    \
  static Untagged##V* Untag##V(V arg) { return arg.ptr().untag(); }            \
  static V##Ptr Get##V##Ptr(V arg) { return arg.ptr(); }                       \
  static V Cast##V(const dart::Object& arg) { return dart::V::Cast(arg); }

Definition at line 117 of file object_graph_copy.cc.

                                           { return arg.untag(); }             \
  static V##Ptr Get##V##Ptr(V##Ptr arg) { return arg; }                        \
  static V##Ptr Cast##V(ObjectPtr arg) { return dart::V::RawCast(arg); }

DO [3/3]

#define DO

(

V

)

Value:

  DART_FORCE_INLINE                                                            \
  Untagged##V* Untag##V(typename Types::V obj) {                               \
    return Types::Get##V##Ptr(obj).Decompress(Base::heap_base_).untag();       \
  }

Definition at line 117 of file object_graph_copy.cc.

                                           { return arg.untag(); }             \
  static V##Ptr Get##V##Ptr(V##Ptr arg) { return arg; }                        \
  static V##Ptr Cast##V(ObjectPtr arg) { return dart::V::RawCast(arg); }

FOR_UNSUPPORTED_CLASSES

#define FOR_UNSUPPORTED_CLASSES

(

V

)

Definition at line 24 of file object_graph_copy.cc.

HANDLE_ILLEGAL_CASE

#define HANDLE_ILLEGAL_CASE

(

Type

)

Value:

  case k##Type##Cid: {                                                         \
    exception_msg_ =                                                           \
        "Illegal argument in isolate message: "                                \
        "(object is a " #Type ")";                                             \
    exception_unexpected_object_ = object;                                     \
    return false;                                                              \
  }

Z

#define Z   zone_

Definition at line 19 of file object_graph_copy.cc.