def wrap_one_call_policy(fn):
rt = fn.return_type
if fn.return_type.decl_string == "char const *":
return # use default for strings
if fn.return_type.decl_string == "char *":
return # use default for strings
elif fn.return_type.decl_string == "void *":
return # use default for void pointers
elif fn.return_type.decl_string == "::GLvoid const *":
return # use default for void pointers
parent_ref = declarations.reference_t(declarations.declarated_t(fn.parent))
if declarations.is_reference(rt):
# Need type without reference for next type checks
nonref_rt = rt.base
if declarations.is_arithmetic(nonref_rt) or declarations.is_enum(
nonref_rt):
# returning const& double can cause compile trouble if return_internal_reference is used
if declarations.is_const(nonref_rt):
fn.call_policies = return_value_policy(copy_const_reference)
return
# int& might need to be copy_non_const_reference...
else:
fn.call_policies = return_value_policy(
copy_non_const_reference)
return
# Const string references should be copied to python strings
if declarations.is_std_string(nonref_rt) and declarations.is_const(
nonref_rt):
fn.call_policies = return_value_policy(copy_const_reference)
return
# Returning reference to this same class looks like return_self() [does this always work?]
if declarations.is_same(parent_ref, rt):
fn.call_policies = return_self()
return
elif declarations.is_pointer(rt):
# Clone methods
if re.search(r'^clone', fn.name):
fn.call_policies = return_value_policy(reference_existing_object)
return
else:
return
# Everything else probably returns an internal reference
fn.call_policies = return_internal_reference()
return
def wrap_one_call_policy(fn):
rt = fn.return_type
if fn.return_type.decl_string == "char const *":
return # use default for strings
if fn.return_type.decl_string == "char *":
return # use default for strings
elif fn.return_type.decl_string == "void *":
return # use default for void pointers
elif fn.return_type.decl_string == "::GLvoid const *":
return # use default for void pointers
parent_ref = declarations.reference_t(declarations.declarated_t(fn.parent))
if declarations.is_reference(rt):
# Need type without reference for next type checks
nonref_rt = rt.base
if declarations.is_arithmetic(nonref_rt) or declarations.is_enum(nonref_rt):
# returning const& double can cause compile trouble if return_internal_reference is used
if declarations.is_const(nonref_rt):
fn.call_policies = return_value_policy(copy_const_reference)
return
# int& might need to be copy_non_const_reference...
else:
fn.call_policies = return_value_policy(copy_non_const_reference)
return
# Const string references should be copied to python strings
if declarations.is_std_string(nonref_rt) and declarations.is_const(nonref_rt):
fn.call_policies = return_value_policy(copy_const_reference)
return
# Returning reference to this same class looks like return_self() [does this always work?]
if declarations.is_same(parent_ref, rt):
fn.call_policies = return_self()
return
elif declarations.is_pointer(rt):
# Clone methods
if re.search(r'^clone', fn.name):
fn.call_policies = return_value_policy(reference_existing_object)
return
else:
return
# Everything else probably returns an internal reference
fn.call_policies = return_internal_reference()
return
def check_args_exportable ( function, ns ):
""" Look at each argument in the function and determine that we have exported it
or it's a special.
"""
ret = True
Specials = ['::Ogre::String']
for a in function.arguments:
rawarg = declarations.remove_declarated(
declarations.remove_const(
declarations.remove_reference(
declarations.remove_pointer ( a.type ))))
## now check if the arg is a fundemental type (int float etc), a void
## or a special ..
if declarations.is_arithmetic (rawarg)\
or declarations.is_void(rawarg)\
or declarations.is_enum(rawarg):
pass
elif 'Ogre::' in a.type.decl_string: # assume it's a class and needs checking
name = a.type.decl_string.split()[0] # let's grab the actual class name
if name in Specials: # we know that the classes in specials DO exist
pass
else:
try:
tcls = ns.class_(name)
if not tcls.exportable or tcls.ignore or type ( tcls.parent ) != decl_wrappers.namespace_wrapper.namespace_t:
## print "check_args_exportable: NOT EXPORTABLE:", tcls, tcls.exportable, tcls.ignore , type ( tcls.parent )
ret = False
break
else:
pass # print name, "IS exportable"
except:
print "check_args_exportable: unable to find:", name
ret = False
else:
print "check_args_exportable: NOT SURE...", a, a.type, type(a.type)
return ret
def ManualFixes ( mb ):
global_ns = mb.global_ns
main_ns = global_ns
funcs = [
'::ssgBranch::getByName'
,'::ssgBranch::getByPath'
,'::ssgEntity::getByName'
,'::ssgEntity::getByPath'
]
# for f in funcs:
# main_ns.member_functions(f).call_policies = call_policies.default_call_policies()
# bug in Py++ where is uses the wrong call policies on a transformed function
for fun in main_ns.member_functions(allow_empty=True):
if fun.transformations:
if declarations.is_pointer(fun.return_type ) :
rawarg = declarations.remove_declarated(
declarations.remove_const(
declarations.remove_reference(
declarations.remove_pointer ( fun.return_type ))))
if not declarations.is_arithmetic (rawarg) and not declarations.is_void(rawarg):
fun.call_policies = call_policies.default_call_policies()
print "Changed call policies on ", fun
def Auto_Functional_Transformation ( mb, ignore_funs=[], special_vars=[]):
toprocess = []
aliases={}
for fun in mb.member_functions(allow_empty=True):
toprocess.append( fun )
for fun in mb.free_functions(allow_empty=True):
toprocess.append( fun )
for fun in toprocess:
fun_demangled = fun.demangled # need to check as extern functions don't have demangled name...
if fun_demangled:
# try: # ugly wrapping in a try :(
fullname = fun.demangled.split('(')[0]
if fullname not in ignore_funs and not fun.ignore:
outputonly = False
arg_position = 0
trans=[]
desc=""
ft_type = None
ctypes_conversion = False
for arg in fun.arguments:
rawarg = declarations.remove_declarated(
declarations.remove_const(
declarations.remove_reference(
declarations.remove_pointer ( arg.type ))))
## now check if the arg is a fundemental type (int float etc), a void
## or a special ..
if declarations.is_arithmetic (rawarg)\
or declarations.is_void(rawarg)\
or arg.type.decl_string in special_vars:
if declarations.is_pointer(arg.type): #we convert any pointers to unsigned int's
# now look to see if it's a char * and if so we treat it as a string..
# # print "**" , declarations.remove_alias( rawarg ), declarations.type_traits.create_cv_types( declarations.cpptypes.char_t())
if declarations.remove_alias( rawarg ) in declarations.type_traits.create_cv_types( declarations.cpptypes.char_t() ):
print ("MATCHED CString", fun)
trans.append( ft.input_c_string(arg_position, 4096 ) )
desc = desc +"Argument: "+arg.name+ "( pos:" + str(arg_position) + " - " +\
arg.type.decl_string + " ) takes a python string. \\n"
ctypes_conversion = True
ctypes_arg = arg.type.decl_string.split()[0]
ft_type = 'CTYPES'
else:
trans.append( ft.modify_type(arg_position,_ReturnUnsignedInt ) )
desc = desc +"Argument: "+arg.name+ "( pos:" + str(arg_position) + " - " +\
arg.type.decl_string + " ) takes a CTypes.addressof(xx). \\n"
ctypes_conversion = True
ctypes_arg = arg.type.decl_string.split()[0]
ft_type = 'CTYPES'
elif declarations.is_reference(arg.type)and not declarations.is_const(declarations.remove_reference( arg.type)): # seen functions passing const ref's
trans.append( ft.inout(arg_position ) )
desc = desc + "Argument: "+arg.name+ "( pos:" + str(arg_position) + " - " +\
arg.type.decl_string + " ) converted to an input/output (change to return types).\\n"
ft_type = 'INOUT'
elif declarations.is_reference(arg.type):
print ("Warning: - possible code change.", fun,arg," not wrapped as const reference to base type invalid")
else:
pass # it isn't a pointer or reference so doesn't need wrapping
else:
pass # it's not a var we need to handle
arg_position += 1
if trans:
const_return = False # declarations.is_const(fun)
if fun.decl_string.endswith('const'):
const_return=True
simple_return = declarations.is_arithmetic(fun.return_type) or declarations.is_void(fun.return_type)
nonpublic_destructor = declarations.is_class(fun.parent) and declarations.has_destructor(fun.parent) and\
not declarations.has_public_destructor(fun.parent)
if fun.documentation or fun.transformations: # it's already be tweaked:
print ("AUTOFT ERROR: Duplicate Tranforms.", fun, fun.documentation)
# if the class has a protected destruction AND the return value is const or a non arithmatic value then exclude it.
elif nonpublic_destructor and const_return:
print ("AUTOFT ERROR Const: Parent has non public destructor and const return.", fun.parent.name, fun.return_type.decl_string, fun)
fun.documentation="Python-Ogre Warning: function required transformation - not possible due to non public destructor and const return value.."
elif nonpublic_destructor and not simple_return:
print ("AUTOFT ERROR Const: Parent has non public destructor and complex return value.", fun.parent.name, fun.return_type.decl_string, fun)
fun.documentation="Python-Ogre Warning: function required transformation - not possible due to non public destructor and complex return value.."
else:
new_alias = fun.name
if ctypes_conversion: # only manage name changes if ctypes changing
# now lets look for a duplicate function name with the same number arguments
f= [None]*len(fun.arguments)
s = mb.member_functions("::" + fullname, arg_types=f, allow_empty=True)
if len (s) > 1:
# there are duplicate names so need to create something unique
ctypes_arg = ctypes_arg.replace("::", "_") # to clean up function names...
new_alias = fun.name + ctypes_arg[0].upper() + ctypes_arg[1:]
# now for REAL ugly code -- we have faked a new alias and it may not be unique
# so we track previous alias + class name to ensure unique names are generated
keyname = fullname + new_alias # we use the full class + function name + alias as the key
if keyname in aliases: # already exists, need to fake another version..
new_alias = new_alias + "_" + str( aliases[keyname] )
aliases[keyname] = aliases[keyname] + 1
else:
aliases[keyname] = 1
desc = desc + "\\\nWARNING FUNCTION NAME CHANGE - from "+fun.name + " -- " + fun.decl_string +" to " + new_alias + " \\n"
print ("INFO: Adjusting Alias as multiple overlapping functions:", new_alias)
print ("AUTOFT OK: Tranformed ", fun.return_type.decl_string, fun, "(",new_alias,")")
fun.add_transformation ( * trans , **{"alias":new_alias} )
fun.documentation = docit ("Auto Modified Arguments:",
desc, "...")