def test_unary_both_ops(self):
assert_raises_message(
exc.CompileError, "Unary expression does not support operator and "
"modifier simultaneously",
UnaryExpression(literal("x"),
operator=operators.custom_op("x"),
modifier=operators.custom_op("y")).compile)
def expression(self, args):
if len(args) == 1:
# it's a list expression
return args[0]
left, op, right = args
inverse = False
if type(op) is tuple:
op = op[0]
inverse = True
exp = BinaryExpression(left, right, op)
if inverse:
exp = UnaryExpression(exp, operator=operator.inv)
return exp
def ttl_delete(expr):
return UnaryExpression(expr, modifier=custom_op('DELETE'))
def test_unary_no_ops(self):
assert_raises_message(
exc.CompileError,
"Unary expression has no operator or modifier",
UnaryExpression(literal("x")).compile
)
def factorial_prefix(self):
return UnaryExpression(self.expr,
operator=operators.custom_op("!!"),
type_=MyInteger)
def factorial(self):
return UnaryExpression(self.expr,
modifier=operators.custom_op("!"),
type_=MyInteger)
