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import python_nondynamic
def is_python_modern():
"""Return True if SWIG is generating Python code using -modern. Works only if %python_nondynamic has been used."""
return hasattr(python_nondynamic, "_swig_setattr_nondynamic_class_variable")
def debug_print(s):
show_debug = False
if show_debug:
print(s)
aa = python_nondynamic.A()
aa.a = 1
aa.b = 2
# Check values are really set
if python_nondynamic.retrieve_A_a(aa) != 1: raise RuntimeError("a not set correctly")
if python_nondynamic.retrieve_A_b(aa) != 2: raise RuntimeError("b not set correctly")
try:
aa.c = 2
raise RuntimeError("A is not static")
except AttributeError as e:
debug_print(e)
pass
class PurePythonClass(object):
def __init__(self):
self.variables = dict()
def __set__(self, name, value):
self.variables[name] = value
pass
class B(python_nondynamic.A):
c = 4
cc = PurePythonClass()
cc.nnn = "new attrib"
def __init__(self):
python_nondynamic.A.__init__(self)
pass
pass
bb = B()
bb.a = 4
bb.b = 5
# Check values are really set
if python_nondynamic.retrieve_A_a(bb) != 4: raise RuntimeError("a not set correctly")
if python_nondynamic.retrieve_A_b(bb) != 5: raise RuntimeError("b not set correctly")
try:
bb.c = 3
raise RuntimeError("B.c class variable messes up nondynamic-ness of B bb.c={} B.c={}".format(bb.c, B.c))
except AttributeError as e:
debug_print(e)
pass
try:
bb.d = 2
raise RuntimeError("B is not static")
except AttributeError as e:
debug_print(e)
pass
cc = python_nondynamic.C()
cc.d = 3
# An inconsistency between builtin and (non-builtin/modern).
# Class variables cannot be set on builtin types, like other Python builtins, eg list.classvar=111 fails
if python_nondynamic.is_python_builtin():
try:
python_nondynamic.C.classvar = 111
raise RuntimeError("C should not allow static variables to be added when using builtin")
except AttributeError as e:
debug_print(e)
pass
else:
python_nondynamic.C.classvar = 111
if is_python_modern() and not python_nondynamic.is_python_builtin():
# Not working with builtin or non-modern :(
try:
B.a = 10
raise RuntimeError("B should not allow adding a class variable by setting it as an instance variable")
except AttributeError as e:
debug_print(e)
pass
try:
python_nondynamic.A.a = 10
raise RuntimeError("A should not allow adding a class variable by setting it as an instance variable")
except AttributeError as e:
debug_print(e)
pass
if not python_nondynamic.is_python_builtin():
try:
bb.cc = 3
raise RuntimeError("B.cc class variable messes up nondynamic-ness of B bb.cc={} B.cc={}".format(bb.cc, B.cc))
except AttributeError as e:
debug_print(e)
pass
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