megrxu

{
    "inbounds": [
        {
            "port": 1080,
            "listen": "127.0.0.1",
            "protocol": "socks",
            "settings": {
                "udp": false
            }
        }

odersky

Principled Meta Programming for Scala

This note outlines a principled way to meta-programming in Scala. It tries to combine the best ideas from LMS and Scala macros in a minimalistic design.

• LMS: Types matter. Inputs, outputs and transformations should all be statically typed.

• Macros: Quotations are ultimately more easy to deal with than implicit-based type-lifting

• LMS: Some of the most interesting and powerful applications of meta-programming

indigostar-kr

package slick.extensions

import slick.ast._
import slick.dbio.{ Effect, NoStream }
import slick.driver.JdbcDriver
import slick.jdbc._
import slick.lifted._
import slick.relational.{ CompiledMapping, ProductResultConverter, ResultConverter, TypeMappingResultConverter }
import slick.util.{ ProductWrapper, SQLBuilder }

eamelink

Recursion and Trampolines in Scala

Recursion is beautiful. As an example, let's consider this perfectly acceptable example of defining the functions even and odd in Scala, whose semantics you can guess:

def even(i: Int): Boolean = i match {
  case 0 => true
  case _ => odd(i - 1)
}

def odd(i: Int): Boolean = i match {

VincentSit

#!/bin/bash
# update_gfwlist.sh
# Author : VincentSit
# Copyright (c) http://xuexuefeng.com
#
# Example usage
#
# ./whatever-you-name-this.sh
#
# Task Scheduling (Optional)

DeaconDesperado

From @echojc's awesome blog post and followup

aviaryan

1. Install zsh from cygwin
2. Install oh-my-zsh from https://github.com/robbyrussell/oh-my-zsh . Follow the manual instructions
3. To make zsh default on ConEmu, create a task with C:\cygwin64\bin\mintty.exe /usr/bin/zsh - . Make it the defaut shell.
4. To start a zsh shell on demand, add this batch script to your path or start menu or wherever.

start C:\cygwin64\bin\mintty.exe /usr/bin/zsh -

amacneil

from django.core.serializers.json import DjangoJSONEncoder
from django.template import Library
from json import dumps as json_dumps

register = Library()


@register.filter
def json(data):
    """

fancellu

import java.util

import org.apache.kafka.clients.consumer.KafkaConsumer

import scala.collection.JavaConverters._

object ConsumerExample extends App {

  import java.util.Properties

dchjmichael

介绍

Spring从2.0开始引入了一个新的机制用于扩展xml模式，我们就可以编写自定义的xml bean解析器然后集成到Spring IoC容器中。

xml扩展大概有以下几个步骤：

• 编写自定义类
• 编写xml schema来描述自定义元素
• 编写NamespaceHandler新样式.css的实现类
• 编写BeanDefinitionParser实现类
• 把以上组建注册到Spring