コード例 #1
0
    def testFieldDefaults(self):
        s = arith_ast.Slice()
        s.a = ArithVar('foo')
        self.assertEqual(None, s.begin)
        self.assertEqual(None, s.end)
        self.assertEqual(None, s.stride)
        print(s)

        func = arith_ast.FuncCall()
        func.name = 'f'
        self.assertEqual([], func.args)
        print(func)
コード例 #2
0
    def testFieldDefaults(self):
        s = arith_ast.Slice()
        s.a = ArithVar('foo')
        self.assertEqual(None, s.begin)
        self.assertEqual(None, s.end)
        self.assertEqual(None, s.stride)
        print(s)

        func = arith_ast.FuncCall()
        func.name = 'f'
        self.assertEqual([], func.args)
        print(func)

        t = arith_ast.token(5, 'x')
        self.assertEqual(5, t.id)
        self.assertEqual('x', t.value)
        self.assertEqual(const.NO_INTEGER, t.span_id)
コード例 #3
0
def LeftIndex(p, token, left, unused_bp):
    """ index f[x+1] """
    # f[x] or f[x][y]
    if not isinstance(left, arith_ast.ArithVar):
        raise tdop.ParseError("%s can't be indexed" % left)
    index = p.ParseUntil(0)
    if p.AtToken(':'):
        p.Next()
        end = p.ParseUntil(0)
    else:
        end = None

    p.Eat(']')

    # TODO: If you see ], then
    # 1:4
    # 1:4:2
    # Both end and step are optional

    if end:
        return arith_ast.Slice(left, index, end, None)
    else:
        return arith_ast.Index(left, index)