ceph/src/boost/boost/outcome/outcome.gdb.py

   1 import gdb.printing
   2
   3 class OutcomeBasicOutcomePrinter(object):
   4     """Print an outcome::basic_outcome<T>"""
   5
   6     def __init__(self, val):
   7         self.val = val
   8
   9     def children(self):
  10         if self.val['_state']['_status']['status_value'] & 1 == 1:
  11             yield ('value', self.val['_state']['_value'])
  12         if self.val['_state']['_status']['status_value'] & 2 == 2:
  13             yield ('error', self.val['_state']['_error'])
  14         if self.val['_state']['_status']['status_value'] & 4 == 4:
  15             yield ('exception', self.val['_ptr'])
  16
  17     def display_hint(self):
  18         return None
  19
  20     def to_string(self):
  21         if self.val['_state']['_status']['status_value'] & 54 == 54:
  22             return 'errored (errno, moved from) + exceptioned'
  23         if self.val['_state']['_status']['status_value'] & 50 == 50:
  24             return 'errored (errno, moved from)'
  25         if self.val['_state']['_status']['status_value'] & 38 == 38:
  26             return 'errored + exceptioned (moved from)'
  27         if self.val['_state']['_status']['status_value'] & 36 == 36:
  28             return 'exceptioned (moved from)'
  29         if self.val['_state']['_status']['status_value'] & 35 == 35:
  30             return 'errored (moved from)'
  31         if self.val['_state']['_status']['status_value'] & 33 == 33:
  32             return 'valued (moved from)'
  33         if self.val['_state']['_status']['status_value'] & 22 == 22:
  34             return 'errored (errno) + exceptioned'
  35         if self.val['_state']['_status']['status_value'] & 18 == 18:
  36             return 'errored (errno)'
  37         if self.val['_state']['_status']['status_value'] & 6 == 6:
  38             return 'errored + exceptioned'
  39         if self.val['_state']['_status']['status_value'] & 4 == 4:
  40             return 'exceptioned'
  41         if self.val['_state']['_status']['status_value'] & 2 == 2:
  42             return 'errored'
  43         if self.val['_state']['_status']['status_value'] & 1 == 1:
  44             return 'valued'
  45         if self.val['_state']['_status']['status_value'] & 0xff == 0:
  46             return 'empty'
  47
  48
  49 def build_pretty_printer():
  50     pp = gdb.printing.RegexpCollectionPrettyPrinter("outcome_v2")
  51     pp.add_printer('outcome_v2::basic_result', '^outcome_v2[_0-9a-f]*::basic_result<.*>$', OutcomeBasicOutcomePrinter)
  52     pp.add_printer('outcome_v2::basic_outcome', '^outcome_v2[_0-9a-f]*::basic_outcome<.*>$', OutcomeBasicOutcomePrinter)
  53     return pp
  54
  55 def register_printers(obj = None):
  56     gdb.printing.register_pretty_printer(obj, build_pretty_printer(), replace = True)
  57
  58 register_printers(gdb.current_objfile())