Class FixedArray

deps/v8/tools/grokdump.py:1483–1518

class FixedArray(HeapObject):
  def LengthOffset(self):
    return self.heap.TaggedPointerSize()

  def ElementsOffset(self):
    return self.heap.TaggedPointerSize() * 2

  def MemberOffset(self, i):
    return self.ElementsOffset() + self.heap.TaggedPointerSize() * i

  def Get(self, i):
    return self.ObjectField(self.MemberOffset(i))

  def __init__(self, heap, map, address):
    HeapObject.__init__(self, heap, map, address)
    self.length = self.SmiField(self.LengthOffset())

  def Print(self, p):
    p.Print("FixedArray(%s) {" % self.heap.reader.FormatIntPtr(self.address))
    p.Indent()
    p.Print("length: %d" % self.length)
    base_offset = self.ElementsOffset()
    for i in range(self.length):
      offset = base_offset + 4 * i
      try:
        p.Print("[%08d] = %s" % (i, self.ObjectField(offset)))
      except TypeError:
        p.Dedent()
        p.Print("...")
        p.Print("}")
        return
    p.Dedent()
    p.Print("}")

  def __str__(self):
    return "FixedArray(%08x, length=%d)" % (self.address, self.length)


class DescriptorArray(object):