examples/summaries/sp_cp.py

   1 """
   2 Summary and synthetic providers for LLDB-specific shared pointers
   3
   4 part of The LLVM Compiler Infrastructure
   5 This file is distributed under the University of Illinois Open Source
   6 License. See LICENSE.TXT for details.
   7 """
   8
   9 class SharedPtr_SyntheticChildrenProvider:
  10         def __init__(self,valobj,dict):
  11                 self.valobj = valobj
  12                 self.update()
  13         def update(self):
  14                 pass
  15         def num_children(self):
  16                 return 1
  17         def get_child_index(self,name):
  18                 if name == "ptr":
  19                         return 0
  20                 if name == "count":
  21                         return 1
  22                 return None
  23         def get_child_at_index(self,index):
  24                 if index == 0:
  25                         return self.valobj.GetChildMemberWithName('_M_ptr')
  26                 if index == 1:
  27                         return self.valobj.GetChildMemberWithName('_M_refcount').GetChildMemberWithName('_M_pi').GetChildMemberWithName('_M_use_count')
  28                 return None
  29
  30 def SharedPtr_SummaryProvider (valobj,dict):
  31         return 'use = ' + str(valobj.GetChildMemberWithName("count").GetValueAsUnsigned())
  32
  33 class ValueObjectSP_SyntheticChildrenProvider:
  34         def __init__(self,valobj,dict):
  35                 self.valobj = valobj
  36                 self.update()
  37         def update(self):
  38                 pass
  39         def num_children(self):
  40                 return 1
  41         def get_child_index(self,name):
  42                 if name == "ptr":
  43                         return 0
  44                 if name == "count":
  45                         return 1
  46                 return None
  47         def get_child_at_index(self,index):
  48                 if index == 0:
  49                         return self.valobj.GetChildMemberWithName('ptr_')
  50                 if index == 1:
  51                         return self.valobj.GetChildMemberWithName('cntrl_').GetChildMemberWithName('shared_owners_')
  52                 return None
  53
  54 def ValueObjectSP_SummaryProvider (valobj,dict):
  55         return 'use = ' + str(1 + valobj.GetChildMemberWithName("count").GetValueAsUnsigned())
  56
  57 def __lldb_init_module(debugger, dict):
  58         debugger.HandleCommand('type summary add -x ".*ValueObjectSP" --expand -F sp_cp.ValueObjectSP_SummaryProvider')
  59         debugger.HandleCommand('type synthetic add -x ".*ValueObjectSP" -l sp_cp.ValueObjectSP_SyntheticChildrenProvider')
  60         debugger.HandleCommand('type summary add -x ".*SP" --expand -F sp_cp.SharedPtr_SummaryProvider')
  61         debugger.HandleCommand('type synthetic add -x ".*SP" -l sp_cp.SharedPtr_SyntheticChildrenProvider')