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# cython: legacy_implicit_noexcept=True
# mode: run
# tag: warnings
import sys
import functools
import cython
try:
from StringIO import StringIO
except ImportError:
from io import StringIO
cdef int func_implicit(int a, int b):
raise RuntimeError
cdef int func_noexcept(int a, int b) noexcept:
raise RuntimeError
cdef int func_star(int a, int b) except *:
raise RuntimeError
cdef int func_value(int a, int b) except -1:
raise RuntimeError
cdef func_return_obj_implicit(int a, int b):
raise RuntimeError
cdef int(*ptr_func_implicit)(int, int)
ptr_func_implicit = func_implicit
cdef int(*ptr_func_noexcept)(int, int) noexcept
ptr_func_noexcept = func_noexcept
# tests checking that following warning does not occur:
# noexcept clause is ignored for function returning Python object
cdef object test_noexcept_warning_object(x):
return x
cdef str test_noexcept_warning_str():
return 'a'
cdef test_noexcept_warning():
pass
@cython.cfunc
def func_pure_implicit() -> cython.int:
raise RuntimeError
@cython.exceptval(check=False)
@cython.cfunc
def func_pure_noexcept() -> cython.int:
raise RuntimeError
def print_stderr(func):
@functools.wraps(func)
def testfunc():
old_stderr = sys.stderr
stderr = sys.stderr = StringIO()
try:
func()
finally:
sys.stderr = old_stderr
print(stderr.getvalue())
return testfunc
@print_stderr
def test_noexcept():
"""
>>> test_noexcept() # doctest: +ELLIPSIS
RuntimeError
Exception...ignored...
"""
func_noexcept(3, 5)
@print_stderr
def test_ptr_noexcept():
"""
>>> test_ptr_noexcept() # doctest: +ELLIPSIS
RuntimeError
Exception...ignored...
"""
ptr_func_noexcept(3, 5)
@print_stderr
def test_implicit():
"""
>>> test_implicit() # doctest: +ELLIPSIS
RuntimeError
Exception...ignored...
"""
func_implicit(1, 2)
@print_stderr
def test_ptr_implicit():
"""
>>> test_ptr_implicit() # doctest: +ELLIPSIS
RuntimeError
Exception...ignored...
"""
ptr_func_implicit(1, 2)
def test_star():
"""
>>> test_star()
Traceback (most recent call last):
...
RuntimeError
"""
func_star(1, 2)
def test_value():
"""
>>> test_value()
Traceback (most recent call last):
...
RuntimeError
"""
func_value(1, 2)
def test_return_obj_implicit():
"""
>>> test_return_obj_implicit()
Traceback (most recent call last):
...
RuntimeError
"""
func_return_obj_implicit(1, 2)
@print_stderr
def test_pure_implicit():
"""
>>> test_pure_implicit() # doctest: +ELLIPSIS
RuntimeError
Exception...ignored...
"""
func_pure_implicit()
@print_stderr
def test_pure_noexcept():
"""
>>> test_pure_noexcept() # doctest: +ELLIPSIS
RuntimeError
Exception...ignored...
"""
func_pure_noexcept()
# extern functions are implicit noexcept, without warning
cdef extern int extern_fun()
cdef extern int extern_fun_fun(int (*f)(int))
_WARNINGS = """
12:5: Unraisable exception in function 'legacy_implicit_noexcept.func_implicit'.
12:22: Implicit noexcept declaration is deprecated. Function declaration should contain 'noexcept' keyword.
15:5: Unraisable exception in function 'legacy_implicit_noexcept.func_noexcept'.
27:28: Implicit noexcept declaration is deprecated. Function declaration should contain 'noexcept' keyword.
45:0: Implicit noexcept declaration is deprecated. Function declaration should contain 'noexcept' keyword.
45:0: Unraisable exception in function 'legacy_implicit_noexcept.func_pure_implicit'.
49:0: Unraisable exception in function 'legacy_implicit_noexcept.func_pure_noexcept'.
"""
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