#include <code_descriptors.h>

Inheritance diagram for dart::CompressedStackMapsBuilder:

Public Member Functions
	CompressedStackMapsBuilder (Zone *zone)

void	AddEntry (intptr_t pc_offset, BitmapBuilder *bitmap, intptr_t spill_slot_bit_count)

CompressedStackMapsPtr	Finalize () 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 50 of file code_descriptors.h.

Constructor & Destructor Documentation

◆ CompressedStackMapsBuilder()

dart::CompressedStackMapsBuilder::CompressedStackMapsBuilder ( Zone * zone )

inlineexplicit

Definition at line 52 of file code_descriptors.h.

53 : encoded_bytes_(zone, kInitialStreamSize) {}

Member Function Documentation

◆ AddEntry()

void dart::CompressedStackMapsBuilder::AddEntry	(	intptr_t	pc_offset,
		BitmapBuilder *	bitmap,
		intptr_t	spill_slot_bit_count
	)

Definition at line 100 of file code_descriptors.cc.

                                                                         {
  ASSERT(bitmap != nullptr);
  ASSERT(pc_offset > last_pc_offset_);
  ASSERT(spill_slot_bit_count >= 0 && spill_slot_bit_count <= bitmap->Length());
  const uword pc_delta = pc_offset - last_pc_offset_;
  const uword non_spill_slot_bit_count =
      bitmap->Length() - spill_slot_bit_count;
  encoded_bytes_.WriteLEB128(pc_delta);
  encoded_bytes_.WriteLEB128(spill_slot_bit_count);
  encoded_bytes_.WriteLEB128(non_spill_slot_bit_count);
  bitmap->AppendAsBytesTo(&encoded_bytes_);
  last_pc_offset_ = pc_offset;
}

◆ Finalize()

CompressedStackMapsPtr dart::CompressedStackMapsBuilder::Finalize ( ) const

Definition at line 116 of file code_descriptors.cc.

                                                                  {
  if (encoded_bytes_.bytes_written() == 0) {
    return Object::empty_compressed_stackmaps().ptr();
  }
  return CompressedStackMaps::NewInlined(encoded_bytes_.buffer(),
                                         encoded_bytes_.bytes_written());
}

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