QUANTIFIED_AST = AST.QuantifiedExpr(True, [(AST.Name('ala'), DISJUNCTION_AST)], CONJUNCTION_AST)
IF_STR = 'if %s then %s else %s' % (QUANTIFIED_STR, DISJUNCTION_STR, CONJUNCTION_STR)
IF_AST = AST.If(QUANTIFIED_AST, DISJUNCTION_AST, CONJUNCTION_AST)
FOR_STR = 'for ala in %s return %s' % (IF_STR, QUANTIFIED_STR)
FOR_AST = AST.For([(AST.Name('ala'), IF_AST)], QUANTIFIED_AST)
PATH_STR = '%s.ala' % DATE_STR
PATH_AST = AST.Path(DATE_AST, AST.Name('ala'))
INVOCATION_STR = '%s(%s, %s)' % (PATH_STR, FOR_STR, IF_STR)
INVOCATION_AST = AST.Invocation(PATH_AST, [FOR_AST, IF_AST])
NEGATION_STR = '-?A_zÊÝĄͼൺ⁶Ⰲ〠邏２𐎅'
NEGATION_AST = AST.Negation(AST.Name('?A_zÊÝĄͼൺ⁶Ⰲ〠邏２𐎅'))
ARITHMETIC_EXPRESSION_STR = '1.2-%s /true **%s' % (NEGATION_STR, NAME_STR)
ARITHMETIC_EXPRESSION_AST = AST.Dif(AST.Number(1.2), AST.Div(NEGATION_AST, AST.Exp(AST.Boolean(True), NAME_AST)))
NOT_STR = 'not (null)'
NOT_AST = AST.Not(AST.PositiveUnaryTests([AST.Null()]))
POSITIVE_UNARY_TESTS_STR = '%s in (null, null)' % ARITHMETIC_EXPRESSION_STR
POSITIVE_UNARY_TESTS_AST = AST.In(ARITHMETIC_EXPRESSION_AST, AST.PositiveUnaryTests([AST.Null()] * 2))
POSITIVE_UNARY_TEST_STR = '%s in (null, %s)' % (POSITIVE_UNARY_TESTS_STR, DATE_STR)
POSITIVE_UNARY_TEST_AST = AST.In(POSITIVE_UNARY_TESTS_AST, AST.PositiveUnaryTests([AST.Null(), AST.Endpoint(DATE_AST)]))
SIMPLE_POSITIVE_UNARY_TESTS_STR = 'ala, "ala"'
SIMPLE_POSITIVE_UNARY_TESTS_AST = AST.PositiveUnaryTests([AST.Endpoint([AST.Name('ala')]),
def test_arithmetic_negation(self):
self.check_parser(NEGATION_STR, NEGATION_AST)
self.check_parser('--2', AST.Negation(AST.Negation(AST.Number(2))))
self.check_parser('- -2', AST.Negation(AST.Negation(AST.Number(2))))
self.check_parser('- -2', AST.Negation(AST.Negation(AST.Number(2))))
def p_arithmetic_negation(self, p):
"""arithmetic_negation : '-' expression %prec negation_p"""
p[0] = AST.Negation(p[2])
