def is_fastcall_supported(fn: FuncIR, capi_version: Tuple[int, int]) -> bool:
if fn.class_name is not None:
if fn.name == '__call__':
# We can use vectorcalls (PEP 590) when supported
return use_vectorcall(capi_version)
# TODO: Support fastcall for __init__.
return use_fastcall(capi_version) and fn.name != '__init__'
return use_fastcall(capi_version)
def generate_methods_table(cl: ClassIR, name: str, emitter: Emitter) -> None:
emitter.emit_line('static PyMethodDef {}[] = {{'.format(name))
for fn in cl.methods.values():
if fn.decl.is_prop_setter or fn.decl.is_prop_getter:
continue
emitter.emit_line('{{"{}",'.format(fn.name))
emitter.emit_line(' (PyCFunction){}{},'.format(PREFIX,
fn.cname(
emitter.names)))
if use_fastcall(emitter.capi_version):
flags = ['METH_FASTCALL']
else:
flags = ['METH_VARARGS']
flags.append('METH_KEYWORDS')
if fn.decl.kind == FUNC_STATICMETHOD:
flags.append('METH_STATIC')
elif fn.decl.kind == FUNC_CLASSMETHOD:
flags.append('METH_CLASS')
emitter.emit_line(' {}, NULL}},'.format(' | '.join(flags)))
# Provide a default __getstate__ and __setstate__
if not cl.has_method('__setstate__') and not cl.has_method('__getstate__'):
emitter.emit_lines(
'{"__setstate__", (PyCFunction)CPyPickle_SetState, METH_O, NULL},',
'{"__getstate__", (PyCFunction)CPyPickle_GetState, METH_NOARGS, NULL},',
)
emitter.emit_line('{NULL} /* Sentinel */')
emitter.emit_line('};')
