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# Copyright David Abrahams 2004. Distributed under the Boost

# Software License, Version 1.0. (See accompanying

# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

'''

>>> from callbacks_ext import *

>>> def double(x):

... return x + x

...

>>> apply_int_int(double, 42)

>>> apply_void_int(double, 42)

>>> def identity(x):

... return x

Once we have array conversion support, this test will fail. Er,

succeed<wink>:

>>> try: apply_to_string_literal(identity)

... except ReferenceError: pass # expected

... else: print('expected an exception!')

>>> try: apply_X_ref_handle(lambda ignored:X(42), None)

... except ReferenceError: pass # expected

... else: print('expected an exception!')

>>> x = X(42)

>>> x.y = X(7)

>>> apply_X_ref_handle(lambda z:z.y, x).value()

>>> x = apply_X_X(identity, X(42))

>>> x.value()

>>> x_count()

>>> del x

>>> x_count()

>>> def increment(x):

... x.set(x.value() + 1)

...

>>> x = X(42)

>>> apply_void_X_ref(increment, x)

>>> x.value()

>>> apply_void_X_cref(increment, x)

>>> x.value() # const-ness is not respected, sorry!

>>> last_x = 1

>>> def decrement(x):

... global last_x

... last_x = x

... if x is not None:

... x.set(x.value() - 1)

>>> apply_void_X_ptr(decrement, x)

>>> x.value()

>>> last_x.value()

>>> increment(last_x)

>>> x.value()

>>> last_x.value()

>>> apply_void_X_ptr(decrement, None)

>>> assert last_x is None

>>> x.value()

>>> last_x = 1

>>> apply_void_X_deep_ptr(decrement, None)

>>> assert last_x is None

>>> x.value()

>>> apply_void_X_deep_ptr(decrement, x)

>>> x.value()

>>> last_x.value()

>>> y = apply_X_ref_handle(identity, x)

>>> assert y.value() == x.value()

>>> increment(x)

>>> assert y.value() == x.value()

>>> y = apply_X_ptr_handle_cref(identity, x)

>>> assert y.value() == x.value()

>>> increment(x)

>>> assert y.value() == x.value()

>>> y = apply_X_ptr_handle_cref(identity, None)

>>> y

>>> def new_x(ignored):

... return X(666)

...

>>> try: apply_X_ref_handle(new_x, 1)

... except ReferenceError: pass

... else: print('no error')

>>> try: apply_X_ptr_handle_cref(new_x, 1)

... except ReferenceError: pass

... else: print('no error')

>>> try: apply_cstring_cstring(identity, 'hello')

... except ReferenceError: pass

... else: print('no error')

>>> apply_char_char(identity, 'x')

'x'

>>> apply_cstring_pyobject(identity, 'hello')

'hello'

>>> apply_cstring_pyobject(identity, None)

>>> apply_char_char(identity, 'x')

'x'

>>> assert apply_to_own_type(identity) is type(identity)

>>> assert apply_object_object(identity, identity) is identity

'''

def run(args = None):

import sys

import doctest

if args is not None:

sys.argv = args

return doctest.testmod(sys.modules.get(__name__))

if __name__ == '__main__':

print("running...")

import sys

status = run()[0]

if (status == 0): print("Done.")

sys.exit(status)