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# cython: language_level=3str
# mode: run
cimport cython
import sys, io
cy = __import__("cython")
cpdef func1(self, cython.integral x):
print(f"{self},", end=' ')
if cython.integral is int:
print('x is int', x, cython.typeof(x))
else:
print('x is long', x, cython.typeof(x))
class A(object):
meth = func1
def __str__(self):
return "A"
cdef class B:
cpdef int meth(self, cython.integral x):
print(f"{self},", end=' ')
if cython.integral is int:
print('x is int', x, cython.typeof(x))
else:
print('x is long', x, cython.typeof(x))
return 0
def __str__(self):
return "B"
pyfunc = func1
def test_fused_cpdef():
"""
>>> test_fused_cpdef()
None, x is int 2 int
None, x is long 2 long
None, x is long 2 long
<BLANKLINE>
None, x is int 2 int
None, x is long 2 long
<BLANKLINE>
A, x is int 2 int
A, x is long 2 long
A, x is long 2 long
A, x is long 2 long
<BLANKLINE>
B, x is long 2 long
"""
func1[int](None, 2)
func1[long](None, 2)
func1(None, 2)
print()
pyfunc[cy.int](None, 2)
pyfunc(None, 2)
print()
A.meth[cy.int](A(), 2)
A.meth(A(), 2)
A().meth[cy.long](2)
A().meth(2)
print()
B().meth(2)
midimport_run = io.StringIO()
if sys.version_info.major < 3:
# Monkey-patch midimport_run.write to accept non-unicode strings under Python 2.
midimport_run.write = lambda c: io.StringIO.write(midimport_run, unicode(c))
realstdout = sys.stdout
sys.stdout = midimport_run
try:
# Run `test_fused_cpdef()` during import and save the result for
# `test_midimport_run()`.
test_fused_cpdef()
except Exception as e:
midimport_run.write(f"{e!r}\n")
finally:
sys.stdout = realstdout
def test_midimport_run():
# At one point, dynamically calling fused cpdef functions during import
# would fail because the type signature-matching indices weren't
# yet initialized.
# (See Compiler.FusedNode.FusedCFuncDefNode._fused_signature_index,
# GH-3366.)
"""
>>> test_midimport_run()
None, x is int 2 int
None, x is long 2 long
None, x is long 2 long
<BLANKLINE>
None, x is int 2 int
None, x is long 2 long
<BLANKLINE>
A, x is int 2 int
A, x is long 2 long
A, x is long 2 long
A, x is long 2 long
<BLANKLINE>
B, x is long 2 long
"""
print(midimport_run.getvalue(), end='')
def assert_raise(func, *args):
try:
func(*args)
except TypeError:
pass
else:
assert False, "Function call did not raise TypeError"
def test_badcall():
"""
>>> test_badcall()
"""
assert_raise(pyfunc)
assert_raise(pyfunc, 1, 2, 3)
assert_raise(pyfunc[cy.int], 10, 11, 12)
assert_raise(pyfunc, None, object())
assert_raise(A().meth)
assert_raise(A.meth)
assert_raise(A().meth[cy.int])
assert_raise(A.meth[cy.int])
assert_raise(B().meth, 1, 2, 3)
def test_nomatch():
"""
>>> func1(None, ())
Traceback (most recent call last):
TypeError: No matching signature found
"""
ctypedef long double long_double
cpdef multiarg(cython.integral x, cython.floating y):
if cython.integral is int:
print("x is an int,", end=' ')
else:
print("x is a long,", end=' ')
if cython.floating is long_double:
print("y is a long double:", end=' ')
elif float is cython.floating:
print("y is a float:", end=' ')
else:
print("y is a double:", end=' ')
print(x, y)
def test_multiarg():
"""
>>> test_multiarg()
x is an int, y is a float: 1 2.0
x is an int, y is a float: 1 2.0
x is a long, y is a double: 4 5.0
>>> multiarg()
Traceback (most recent call last):
TypeError: Expected at least 2 arguments, got 0
>>> multiarg(1, 2.0, 3) # doctest: +ELLIPSIS
Traceback (most recent call last):
TypeError: ...2...arg...3...
"""
multiarg[int, float](1, 2.0)
multiarg[cy.int, cy.float](1, 2.0)
multiarg(4, 5.0)
def test_ambiguousmatch():
"""
>>> multiarg(5, ())
Traceback (most recent call last):
TypeError: Function call with ambiguous argument types
>>> multiarg((), 2.0)
Traceback (most recent call last):
TypeError: Function call with ambiguous argument types
"""
# https://github.com/cython/cython/issues/4409
# default arguments + fused cpdef were crashing
cpdef literal_default(cython.integral x, some_string="value"):
return x, some_string
cpdef mutable_default(cython.integral x, some_value=[]):
some_value.append(x)
return some_value
def test_defaults():
"""
>>> literal_default(1)
(1, 'value')
>>> literal_default(1, "hello")
(1, 'hello')
>>> mutable_default(1)
[1]
>>> mutable_default(2)
[1, 2]
>>> mutable_default(3,[])
[3]
"""
cdef class C:
cpdef object has_default_struct(self, cython.floating x, a=None):
return x, a
# https://github.com/cython/cython/issues/5588
# On some Python versions this was causing a compiler crash
def test_call_has_default_struct(C c, double x):
"""
>>> test_call_has_default_struct(C(), 5.)
(5.0, None)
"""
return c.has_default_struct(x)
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