_utils.py 文件源码

def new_wrapper(cls, func, cache):
        # define the wrapper...
        def callable(*arguments, **keywords):
            heap = [res for _,res in heapq.nsmallest(len(cache), cache)]
            f, (a, w, k) = cls.match((arguments[:],keywords), heap)
            return f(*arguments, **keywords)
            #return f(*(arguments + tuple(w)), **keywords)

        # swap out the original code object with our wrapper's
        f,c = callable, callable.func_code
        cargs = c.co_argcount, c.co_nlocals, c.co_stacksize, c.co_flags, \
                c.co_code, c.co_consts, c.co_names, c.co_varnames, \
                c.co_filename, '.'.join((func.__module__, func.func_name)), \
                c.co_firstlineno, c.co_lnotab, c.co_freevars, c.co_cellvars
        newcode = types.CodeType(*cargs)
        res = types.FunctionType(newcode, f.func_globals, f.func_name, f.func_defaults, f.func_closure)
        res.func_name, res.func_doc = func.func_name, func.func_doc

        # assign the specified cache to it
        setattr(res, cls.cache_name, cache)
        # ...and finally add a default docstring
        setattr(res, '__doc__', '')
        return res