teryror

Redesigning coca's Storage Abstraction

This post was written primarily to organize my thoughts during the design process. I'll explain the thought process that led me to each point in the design space we visit, then point out any issues, which will lead into the next iteration. Along the way, I made a few errors, which I'll try to rectify in the (Side Notes).

Here we go!

Introduction: The Status Quo

EkremDincel

import json
import socket
from struct import Struct, calcsize
from select import select

__all__ = ("Server", "Client", "localhostname", "localhost", "LAN", "WAN")

_int = "H" # 0 <= number <= 65535 == 2 ** 16 -1
_size = calcsize(_int)
_struct = Struct("!" + _int)

edmundsmith

Method for Emulating Higher-Kinded Types in Rust

Intro

I've been fiddling about with an idea lately, looking at how higher-kinded types can be represented in such a way that we can reason with them in Rust here and now, without having to wait a couple years for what would be a significant change to the language and compiler.

There have been multiple discussions on introducing higher-ranked polymorphism into Rust, using Haskell-style Higher-Kinded Types (HKTs) or Scala-looking Generalised Associated Types (GATs). The benefit of higher-ranked polymorphism is to allow higher-level, richer abstractions and pattern expression than just the rank-1 polymorphism we have today.

As an example, currently we can express this type:

jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

divergentdave

*.pyc

adamnew123456

"""
Inserts C code directly into Python files, which can then be dynamically linked
in and called via ctypes.
"""
import atexit
import ctypes
import os
import shlex
import sys
import tempfile

tylerneylon

-- copy.lua
--
-- Lua functions of varying complexity to deep copy tables.
--


-- 1. The Problem.
--
-- Here's an example to see why deep copies are useful. Let's
-- say function f receives a table parameter t, and it wants to

tmr232

class LoopLabel(object):
    def __init__(self):
        super(LoopLabel, self).__init__()

        class MyLoopLabel(Exception): pass
        self._label_exception = MyLoopLabel

    def __enter__(self):
        return self._label_exception

lrq3000

#!/usr/bin/env python
# encoding: utf-8

# Copyright (C) 2001-2007 Martin Blais. All Rights Reserved
# Copyright (C) 2010 Bear http://code-bear.com/bearlog/
# Copyright (C) 2013 lrq3000

# Excerpt from SnakeFood to recursively list all imports of modules using AST parsing
# Additions to print the versions of each module if available