cython

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# coding=utf8
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# mode: run
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# tag: constant_folding
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cimport cython
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bstring = b'abc\xE9def'
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ustring = u'abc\xE9def'
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surrogates_ustring = u'abc\U00010000def'
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@cython.test_fail_if_path_exists(
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    "//SliceIndexNode",
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    )
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def bytes_slicing2():
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    """
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    >>> a,b,c,d = bytes_slicing2()
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    >>> a == bstring[:]
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    True
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    >>> b == bstring[2:]
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    True
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    >>> c == bstring[:4]
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    True
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    >>> d == bstring[2:4]
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    True
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    """
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    str0 = b'abc\xE9def'[:]
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    str1 = b'abc\xE9def'[2:]
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    str2 = b'abc\xE9def'[:4]
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    str3 = b'abc\xE9def'[2:4]
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    return str0, str1, str2, str3
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@cython.test_fail_if_path_exists(
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    "//SliceIndexNode",
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    )
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def unicode_slicing2():
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    """
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    >>> a,b,c,d = unicode_slicing2()
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    >>> a == ustring[:]
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    True
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    >>> b == ustring[2:]
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    True
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    >>> c == ustring[:4]
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    True
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    >>> d == ustring[2:4]
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    True
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    """
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    str0 = u'abc\xE9def'[:]
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    str1 = u'abc\xE9def'[2:]
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    str2 = u'abc\xE9def'[:4]
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    str3 = u'abc\xE9def'[2:4]
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    return str0, str1, str2, str3
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@cython.test_fail_if_path_exists(
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    "//SliceIndexNode",
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    )
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def unicode_slicing_unsafe_surrogates2():
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    """
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    >>> unicode_slicing_unsafe_surrogates2() == surrogates_ustring[2:]
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    True
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    """
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    ustring = u'abc\U00010000def'[2:]
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    return ustring
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@cython.test_fail_if_path_exists(
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    "//SliceIndexNode",
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    )
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def unicode_slicing_safe_surrogates2():
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    """
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    >>> unicode_slicing_safe_surrogates2() == surrogates_ustring[:2]
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    True
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    >>> print(unicode_slicing_safe_surrogates2())
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    ab
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    """
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    ustring = u'abc\U00010000def'[:2]
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    return ustring
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@cython.test_fail_if_path_exists(
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    "//ComprehensionNode",
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    "//ForInStatNode",
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)
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@cython.test_assert_path_exists(
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    "//SetNode",
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)
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def for_in_empty_setcomp():
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    """
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    >>> s = for_in_empty_setcomp()
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    >>> isinstance(s, set)
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    True
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    >>> len(s)
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    0
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    """
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    return {i for i in []}
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@cython.test_fail_if_path_exists(
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    "//ReturnStatNode//AddNode",
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)
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def add_strings():
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    """
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    >>> s, u, b = add_strings()
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    >>> s == 'abcdef' or s
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    True
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    >>> u == 'abcdef' or u
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    True
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    >>> b == b'abcdef' or b
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    True
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    """
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    # FIXME: test encodings and unicode escapes
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    return "abc" + "def", u"abc" + u"def", b"abc" + b"def"
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