def translate_unary_expression(self, e):
e0 = self.translate_expression(e.arg(0))
if e.decl().kind() == z3p.Z3_OP_NOT:
return 'TheLTS->MakeOp(LTSOps::OpNOT, {})'.format(e0)
elif e.decl().kind() == z3p.Z3_OP_UMINUS:
assert z3p.is_int_value(e.arg(0))
return 'TheLTS->MakeVal("{i}", TheLTS->MakeRangeType({i}, {i}))'.format(i='-{}'.format(e.arg(0)))
else:
raise NotImplementedError("can't translate expression {} with {}".format(e, e.num_args()))
def z3_to_python_value(value):
"""
is_expr: Return `True` if `a` is a Z3 expression, is_expr(1) is False
"""
assert z3p.is_expr(value)
if z3p.is_int_value(value):
return value.as_long()
elif value.sort() == z3p.BoolSort():
if z3p.is_true(value):
return True
elif z3p.is_false(value):
return False
raise NotImplementedError
def z3_to_python_value(value):
"""
is_expr: Return `True` if `a` is a Z3 expression, is_expr(1) is False
"""
assert z3p.is_expr(value)
if z3p.is_int_value(value):
return value.as_long()
elif value.sort() == z3p.BoolSort():
if z3p.is_true(value):
return True
elif z3p.is_false(value):
return False
raise NotImplementedError
def translate_expression(self, e):
if e == z3p.BoolVal(True):
return 'TheLTS->MakeTrue()'
elif e == z3p.BoolVal(False):
return 'TheLTS->MakeFalse()'
elif z3p.is_int_value(e):
return 'TheLTS->MakeVal("{i}", TheLTS->MakeRangeType({i}, {i}))'.format(i=e)
elif z3p.is_const(e) and e in self.channels:
return self.translate_channel_reference(e)
elif z3p.is_const(e):
return '{}Exp'.format(to_camel_case(e.decl().name()))
elif e.num_args() == 1:
return self.translate_unary_expression(e)
elif e.num_args() == 2 and e.decl().kind() == z3p.Z3_OP_SELECT:
return self.translate_channel_reference(e)
elif e.num_args() == 2:
return self.translate_binary_expression(e)
elif e.num_args() == 3:
return self.translate_ternary_expreession(e)
else:
raise NotImplementedError("can't translate expression {} with {}".format(e, e.num_args()))
