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import gdb
class KstdUniquePtrPrinter(gdb.ValuePrinter):
def __init__(self, val):
self.__val = val
self.__type = val.type.template_argument(0)
def to_string(self):
pointer = self.__val["pointer"]
if int(pointer) == 0:
return f"kstd::unique_ptr<{self.__type}> (empty)"
return f"kstd::unique_ptr<{self.__type}>"
def children(self):
pointer = self.__val["pointer"]
if int(pointer) != 0:
yield ("get()", pointer.dereference())
def display_hint(self):
return None
class KstdSharedPtrPrinter(gdb.ValuePrinter):
def __init__(self, val):
self.__val = val
self.__type = val.type.template_argument(0)
def to_string(self):
pointer = self.__val["pointer"]
control_block = self.__val["control"]
if int(pointer) == 0 or int(control_block) == 0:
return f"shared_ptr<{self.__type}> (empty)"
strong_refs = int(control_block["shared_count"]["_M_i"])
weak_refs = int(control_block["weak_count"]["_M_i"])
return (
f"shared_ptr<{self.__type}> use count {strong_refs}, weak count {weak_refs}"
)
def children(self):
pointer = self.__val["pointer"]
control_block = self.__val["control"]
if int(pointer) != 0:
yield ("get()", pointer.dereference())
def display_hint(self):
return None
class KstdObserverPtrPrinter(gdb.ValuePrinter):
def __init__(self, val):
self.__val = val
self.__type = val.type.template_argument(0)
self.__pointer = val["m_ptr"]
def to_string(self):
return f"{(self.__pointer)}"
def children(self):
if int(self.__pointer) != 0:
yield ("get()", self.__pointer.dereference())
def display_hint(self):
return None
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