File: sp_cp.py

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"""
Summary and synthetic providers for LLDB-specific shared pointers

part of The LLVM Compiler Infrastructure
This file is distributed under the University of Illinois Open Source
License. See LICENSE.TXT for details.
"""

class SharedPtr_SyntheticChildrenProvider:
	def __init__(self,valobj,dict):
		self.valobj = valobj
		self.update()
	def update(self):
		pass
	def num_children(self): 
		return 1
	def get_child_index(self,name): 
		if name == "ptr":
			return 0
		if name == "count":
			return 1
		return None
	def get_child_at_index(self,index): 
		if index == 0:
			return self.valobj.GetChildMemberWithName('_M_ptr')
		if index == 1:
			return self.valobj.GetChildMemberWithName('_M_refcount').GetChildMemberWithName('_M_pi').GetChildMemberWithName('_M_use_count')
		return None

def SharedPtr_SummaryProvider (valobj,dict):
	return 'use = ' + str(valobj.GetChildMemberWithName("count").GetValueAsUnsigned())

class ValueObjectSP_SyntheticChildrenProvider:
	def __init__(self,valobj,dict):
		self.valobj = valobj
		self.update()
	def update(self):
		pass
	def num_children(self): 
		return 1
	def get_child_index(self,name): 
		if name == "ptr":
			return 0
		if name == "count":
			return 1
		return None
	def get_child_at_index(self,index): 
		if index == 0:
			return self.valobj.GetChildMemberWithName('ptr_')
		if index == 1:
			return self.valobj.GetChildMemberWithName('cntrl_').GetChildMemberWithName('shared_owners_')
		return None

def ValueObjectSP_SummaryProvider (valobj,dict):
	return 'use = ' + str(1 + valobj.GetChildMemberWithName("count").GetValueAsUnsigned())

def __lldb_init_module(debugger, dict):
	debugger.HandleCommand('type summary add -x ".*ValueObjectSP" --expand -F sp_cp.ValueObjectSP_SummaryProvider')
	debugger.HandleCommand('type synthetic add -x ".*ValueObjectSP" -l sp_cp.ValueObjectSP_SyntheticChildrenProvider')
	debugger.HandleCommand('type summary add -x ".*SP" --expand -F sp_cp.SharedPtr_SummaryProvider')
	debugger.HandleCommand('type synthetic add -x ".*SP" -l sp_cp.SharedPtr_SyntheticChildrenProvider')