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cimport cython
def coerce_char_default(char c):
"""
Default char -> int coercion
>>> coerce_char_default(ord('A')) == ord('A')
True
"""
return c
def coerce_uchar_default(unsigned char c):
"""
Default char -> int coercion
>>> coerce_uchar_default(ord('A')) == ord('A')
True
"""
return c
@cython.test_assert_path_exists("//CoerceIntToBytesNode")
@cython.test_fail_if_path_exists("//CoerceToPyTypeNode")
def coerce_char_bytes_cast(char c):
"""
Explicit char -> bytes coercion
>>> coerce_char_bytes_cast(ord('A')) == 'A'.encode('ASCII')
True
"""
return <bytes>c
@cython.test_assert_path_exists("//CoerceIntToBytesNode")
@cython.test_fail_if_path_exists("//CoerceToPyTypeNode")
def coerce_uchar_bytes_cast(unsigned char c):
"""
Explicit uchar -> bytes coercion
>>> coerce_uchar_bytes_cast(ord('A')) == 'A'.encode('ASCII')
True
>>> b = coerce_uchar_bytes_cast(ord('\\xff'))
>>> b == '\\xff' or b == '\\xff'.encode('ISO-8859-1') # Py2 or Py3
True
"""
return <bytes>c
@cython.test_assert_path_exists("//CoerceIntToBytesNode")
@cython.test_fail_if_path_exists("//CoerceToPyTypeNode")
def coerce_int_bytes_cast(int c):
"""
Explicit int -> bytes coercion
>>> coerce_int_bytes_cast(ord('A')) == 'A'.encode('ASCII')
True
>>> coerce_int_bytes_cast(ord('A') + 0x100)
Traceback (most recent call last):
OverflowError: value too large to pack into a byte
>>> coerce_int_bytes_cast(ord('A') - 0x100)
Traceback (most recent call last):
OverflowError: value too large to pack into a byte
"""
return <bytes>c
@cython.test_assert_path_exists("//CoerceIntToBytesNode")
@cython.test_fail_if_path_exists("//CoerceToPyTypeNode")
def coerce_uint_bytes_cast(unsigned int c):
"""
Explicit uint -> bytes coercion
>>> coerce_uint_bytes_cast(ord('A')) == 'A'.encode('ASCII')
True
>>> b = coerce_uint_bytes_cast(ord('\\xff'))
>>> b == '\\xff' or b == '\\xff'.encode('ISO-8859-1') # Py2 or Py3
True
>>> coerce_uint_bytes_cast(ord('A') + 0x100)
Traceback (most recent call last):
OverflowError: value too large to pack into a byte
"""
return <bytes>c
@cython.test_assert_path_exists("//CoerceIntToBytesNode")
@cython.test_fail_if_path_exists("//CoerceToPyTypeNode")
def coerce_char_bytes_assign(char c):
"""
Implicit char -> bytes coercion in assignments
>>> coerce_char_bytes_assign(ord('A')) == 'A'.encode('ASCII')
True
"""
cdef bytes s = c
return s
@cython.test_assert_path_exists("//CoerceIntToBytesNode")
@cython.test_fail_if_path_exists("//CoerceToPyTypeNode")
def coerce_uchar_bytes_assign(unsigned char c):
"""
Implicit uchar -> bytes coercion in assignments
>>> coerce_uchar_bytes_assign(ord('A')) == 'A'.encode('ASCII')
True
>>> b = coerce_uchar_bytes_assign(ord('\\xff'))
>>> b == '\\xff' or b == '\\xff'.encode('ISO-8859-1') # Py2 or Py3
True
"""
cdef bytes s = c
return s
@cython.test_assert_path_exists("//CoerceIntToBytesNode")
@cython.test_fail_if_path_exists("//CoerceToPyTypeNode")
def coerce_int_bytes_assign(int c):
"""
Implicit int -> bytes coercion in assignments
>>> coerce_int_bytes_assign(ord('A')) == 'A'.encode('ASCII')
True
>>> coerce_int_bytes_assign(ord('A') + 0x100)
Traceback (most recent call last):
OverflowError: value too large to pack into a byte
>>> coerce_int_bytes_assign(ord('A') - 0x100)
Traceback (most recent call last):
OverflowError: value too large to pack into a byte
"""
cdef bytes s = c
return s
@cython.test_assert_path_exists("//CoerceIntToBytesNode")
@cython.test_fail_if_path_exists("//CoerceToPyTypeNode")
def coerce_uint_bytes_assign(unsigned int c):
"""
Implicit uint -> bytes coercion in assignments
>>> coerce_uint_bytes_assign(ord('A')) == 'A'.encode('ASCII')
True
>>> b = coerce_uint_bytes_assign(ord('\\xff'))
>>> b == '\\xff' or b == '\\xff'.encode('ISO-8859-1') # Py2 or Py3
True
>>> coerce_uint_bytes_assign(ord('A') + 0x100)
Traceback (most recent call last):
OverflowError: value too large to pack into a byte
"""
cdef bytes s = c
return s
def inplace_ops_use_arithmetic():
"""
>>> print(inplace_ops_use_arithmetic().decode('ascii'))
bc
"""
cdef char* s = 'abc'
cdef object x = 1
s += 1
s += 2*x
s -= 1
s -= x
return s
@cython.test_fail_if_path_exists('//CoerceFromPyTypeNode')
def indexing_to_char(bytes s):
"""
>>> ord('b')
98
>>> indexing_to_char('abc'.encode('ascii'))
98
"""
cdef unsigned char c = s[1]
return c
|
