Separating transitions from descriptors.

tools/grokdump.py

 #!/usr/bin/env python
 #
 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 1089 matching lines @@
     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 xrange(self.length):
       offset = base_offset + 4 * i
-      p.Print("[%08d] = %s" % (i, self.ObjectField(offset)))
+      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 JSFunction(HeapObject):
   def CodeEntryOffset(self):
     return 3 * self.heap.PointerSize()
@@ skipping 552 matching lines @@
   parser = optparse.OptionParser(USAGE)
   parser.add_option("-s", "--shell", dest="shell", action="store_true",
                     help="start an interactive inspector shell")
   parser.add_option("-f", "--full", dest="full", action="store_true",
                     help="dump all information contained in the minidump")
   options, args = parser.parse_args()
   if len(args) != 1:
     parser.print_help()
     sys.exit(1)
   AnalyzeMinidump(options, args[0])