Commit a3536927 authored by Stefan Behnel's avatar Stefan Behnel

support method slots specific to a Python version

parent 974520e5
......@@ -89,6 +89,9 @@ class CCodeWriter:
self.input_file_contents[file] = F
return F
def get_py_version_hex(self, pyversion):
return "0x%02X%02X%02X%02X" % (tuple(pyversion) + (0,0,0,0))[:4]
def mark_pos(self, pos):
file, line, col = pos
contents = self.file_contents(file)
......
......@@ -104,16 +104,22 @@ class SlotDescriptor:
# slot_name string Member name of the slot in the type object
# is_initialised_dynamically Is initialised by code in the module init function
def __init__(self, slot_name, dynamic = 0):
def __init__(self, slot_name, dynamic = 0, min_python_version = None):
self.slot_name = slot_name
self.is_initialised_dynamically = dynamic
self.min_python_version = min_python_version
def generate(self, scope, code):
if self.is_initialised_dynamically:
value = 0
else:
value = self.slot_code(scope)
if self.min_python_version is not None:
code.putln("#if PY_VERSION_HEX >= " +
code.get_py_version_hex(self.min_python_version))
code.putln("%s, /*%s*/" % (value, self.slot_name))
if self.min_python_version is not None:
code.putln("#endif")
# Some C implementations have trouble statically
# initialising a global with a pointer to an extern
......@@ -175,8 +181,10 @@ class MethodSlot(SlotDescriptor):
# method_name string The __xxx__ name of the method
# default string or None Default value of the slot
def __init__(self, signature, slot_name, method_name, default = None):
SlotDescriptor.__init__(self, slot_name)
def __init__(self, signature, slot_name, method_name,
default = None, min_python_version = None):
SlotDescriptor.__init__(self, slot_name,
min_python_version = min_python_version)
self.signature = signature
self.slot_name = slot_name
self.method_name = method_name
......@@ -493,7 +501,7 @@ PyNumberMethods = (
MethodSlot(ibinaryfunc, "nb_inplace_true_divide", "__itruediv__"),
# Added in release 2.5
MethodSlot(unaryfunc, "nb_index", "__index__"),
MethodSlot(unaryfunc, "nb_index", "__index__", min_python_version=(2,5)),
)
PySequenceMethods = (
......
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