def __parse_unary_expression__(self, symbol_node: jcmuta.SymbolNode,
code: int):
"""
:param symbol_node: negative, bit_not, logic_not, address_of, dereference
:param code:
:return:
"""
operator = symbol_node.get_content().get_token_value()
operand = symbol_node.get_child(1)
if operator == "negative":
u_operand = self.__parse__(operand, code)
return -self.__cast_to_numb__(u_operand)
elif operator == "bit_not":
u_operand = self.__parse__(operand, self.__s_code__)
return ~self.__cast_to_bits__(u_operand)
elif operator == "logic_not":
u_operand = self.__parse__(operand, code)
return z3.Not(self.__cast_to_bool__(u_operand))
elif operator == "address_of":
return z3.Const(self.__unique_name__(symbol_node), z3.IntSort())
else:
name = self.__unique_name__(symbol_node)
name = self.__normal_name__(name, symbol_node.get_data_type())
return self.__new_reference__(name, symbol_node.get_data_type(),
code)
def __parse_list_expression__(self, symbol_node: jcmuta.SymbolNode,
code: int):
elements = list()
for child in symbol_node.get_children():
elements.append(self.__parse__(child, code))
name = self.__unique_name__(symbol_node)
return self.__new_reference__(name, symbol_node.get_data_type(), code)
def __parse_identifier__(self, symbol_node: jcmuta.SymbolNode, code: int):
"""
:param symbol_node:
:param code:
:return:
"""
name = symbol_node.get_content().get_token_value()
data_type = symbol_node.get_data_type()
name = self.__normal_name__(name, data_type)
return self.__new_reference__(name, data_type, code)
def __parse_call_expression__(self, symbol_node: jcmuta.SymbolNode):
function = symbol_node.get_child(0)
if function.get_class_name() == "Identifier":
func_name = function.get_content().get_token_value()
else:
func_name = self.__new_default_name__(function)
arguments = symbol_node.get_child(1).get_children()
for k in range(0, len(arguments)):
arg = self.__parse__(arguments[k])
self.__save__("{}#{}".format(func_name, k), arg)
return self.__parse_by_name__(
"{}_{}".format(func_name, symbol_node.get_class_id()),
symbol_node.get_data_type())
def __parse_call_expression__(self, symbol_node: jcmuta.SymbolNode,
code: int):
"""
:param symbol_node:
:param code:
:return:
"""
function = symbol_node.get_child(0)
if function.get_class_name() == "Identifier":
func_name = function.get_content().get_token_value()
else:
func_name = self.__unique_name__(function)
arguments = symbol_node.get_child(1).get_children()
for k in range(0, len(arguments)):
arg = self.__parse__(arguments[k], 0)
self.__save_state__("{}#{}".format(func_name, k), arg)
return self.__new_reference__(func_name, symbol_node.get_data_type(),
code)
def __parse_unary_expression__(self, symbol_node: jcmuta.SymbolNode):
"""
:param symbol_node:
:return: neg, rsv, not, adr, der
"""
operator = symbol_node.get_content().get_token_value()
u_operand = self.__parse__(symbol_node.get_child(1))
if operator == "negative":
return -u_operand
elif operator == "bit_not":
if isinstance(u_operand, z3.IntNumRef) or isinstance(
u_operand, z3.ArithRef):
return -u_operand - 1
else:
return ~u_operand
elif operator == "logic_not":
return z3.Not(self.__cast_to_bool__(u_operand))
elif operator == "address_of":
return z3.Const(self.__new_default_name__(symbol_node),
z3.IntSort())
else:
return self.__parse_by_name__(
self.__new_default_name__(symbol_node),
symbol_node.get_data_type())
def __parse_field_expression__(self, symbol_node: jcmuta.SymbolNode,
code: int):
name = self.__unique_name__(symbol_node)
name = self.__normal_name__(name, symbol_node.get_data_type())
return self.__new_reference__(name, symbol_node.get_data_type(), code)
def __parse_list_expression__(self, symbol_node: jcmuta.SymbolNode):
elements = list()
for child in symbol_node.get_children():
elements.append(self.__parse__(child))
return self.__parse_by_name__(self.__new_default_name__(symbol_node),
symbol_node.get_data_type())
def __parse_field_expression__(self, symbol_node: jcmuta.SymbolNode):
return self.__parse_by_name__(self.__new_default_name__(symbol_node),
symbol_node.get_data_type())
def __parse_identifier__(self, symbol_node: jcmuta.SymbolNode):
return self.__parse_by_name__(
symbol_node.get_content().get_token_value(),
symbol_node.get_data_type())
