dart::ImageReader Class Reference

#include <image_snapshot.h>

Inheritance diagram for dart::ImageReader:

Public Member Functions
	ImageReader (const uint8_t *data_image, const uint8_t *instructions_image)
ApiErrorPtr	VerifyAlignment () const
	ONLY_IN_PRECOMPILED (uword GetBareInstructionsAt(uint32_t offset) const)
	ONLY_IN_PRECOMPILED (uword GetBareInstructionsEnd() const)
InstructionsPtr	GetInstructionsAt (uint32_t offset) const
ObjectPtr	GetObjectAt (uint32_t offset) const
Public Member Functions inherited from dart::ZoneAllocated
	ZoneAllocated ()
void *	operator new (size_t size)
void *	operator new (size_t size, Zone *zone)
void	operator delete (void *pointer)

Detailed Description

Definition at line 152 of file image_snapshot.h.

Constructor & Destructor Documentation

ImageReader()

dart::ImageReader::ImageReader	(	const uint8_t *	data_image,
		const uint8_t *	instructions_image
	)

Definition at line 1927 of file image_snapshot.cc.

    : data_image_(ASSERT_NOTNULL(data_image)),
      instructions_image_(ASSERT_NOTNULL(instructions_image)) {}

Member Function Documentation

GetInstructionsAt()

InstructionsPtr dart::ImageReader::GetInstructionsAt

(

uint32_t

offset

)

const

Definition at line 1954 of file image_snapshot.cc.

                                                                    {
  ASSERT(!FLAG_precompiled_mode);
  ASSERT(Utils::IsAligned(offset, kObjectAlignment));
 
  ObjectPtr result = UntaggedObject::FromAddr(
      reinterpret_cast<uword>(instructions_image_) + offset);
  ASSERT(result->IsInstructions());
  ASSERT(result->untag()->IsMarked());
 
  return Instructions::RawCast(result);
}

GetObjectAt()

ObjectPtr dart::ImageReader::GetObjectAt

(

uint32_t

offset

)

const

Definition at line 1966 of file image_snapshot.cc.

                                                        {
  ASSERT(Utils::IsAligned(offset, kObjectAlignment));
 
  ObjectPtr result =
      UntaggedObject::FromAddr(reinterpret_cast<uword>(data_image_) + offset);
  ASSERT(result->untag()->IsMarked());
 
  return result;
}

ONLY_IN_PRECOMPILED() [1/2]

dart::ImageReader::ONLY_IN_PRECOMPILED

(

uword GetBareInstructionsAt(uint32_t offset) const

)

ONLY_IN_PRECOMPILED() [2/2]

dart::ImageReader::ONLY_IN_PRECOMPILED

(

uword GetBareInstructionsEnd() const

)

VerifyAlignment()

ApiErrorPtr dart::ImageReader::VerifyAlignment

(

)

const

Definition at line 1932 of file image_snapshot.cc.

                                               {
  if (!Utils::IsAligned(data_image_, kObjectStartAlignment) ||
      !Utils::IsAligned(instructions_image_, kObjectStartAlignment)) {
    return ApiError::New(
        String::Handle(String::New("Snapshot is misaligned", Heap::kOld)),
        Heap::kOld);
  }
  return ApiError::null();
}

---

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

• third_party/dart-lang/sdk/runtime/vm/image_snapshot.h
• third_party/dart-lang/sdk/runtime/vm/image_snapshot.cc