Created
November 2, 2018 07:01
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Pythran-based dummy JIT compiler
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import pythran | |
import inspect | |
import hashlib | |
import itertools | |
import imp | |
import re | |
def typename(obj): | |
# FIXME: only works for some types | |
return type(obj).__name__ | |
class jit(object): | |
def __init__(self, **flags): | |
self.flags = flags | |
def __call__(self, fun): | |
# FIXME: gather global dependencies using pythran.analysis.imported_ids | |
src = inspect.getsource(fun) | |
src = re.sub("@.*?\sdef\s","def ", src) | |
fname = fun.__name__ | |
m = hashlib.md5() | |
m.update(src) | |
def type_collector(*args, **kwargs): | |
arg_types = [typename(arg) for arg in itertools.chain(args, kwargs.values())] | |
m.update("".join(arg_types)) | |
header = "#pythran export {}({})\n".format(fname, ", ".join(arg_types)) | |
# FIXME: implement a cache here | |
module_name = "pythranized_" + m.hexdigest() | |
# FIXME: force output in tmp dir | |
module_path = pythran.compile_pythrancode(module_name, header + src, **self.flags) | |
module = imp.load_dynamic(module_name, module_path) | |
return getattr(module, fun.__name__)(*args, **kwargs) | |
return type_collector |
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