jsuereth

import sbt._
import sbinary._
import DefaultProtocol._

object Incremental {
	val soupOfTheDay = taskKey[String]("Returns the soup of the day. If none is defined, asked for one and remembers until cleaned.")
	val showMenu = taskKey[Unit]("Displays the menu")
	def settings: Seq[Setting[_]] =
	  Seq(
         soupOfTheDay := {

jsuereth

import sbt._
import Keys._
 
object TestBuild extends Build {
  lazy val root = Project(id = "root", base = file(".")).aggregate(project1, project2).settings(defaultSettings:_*).settings(
    concurrentRestrictions in Global := Seq(
      Tags.limit(Tags.ForkedTestGroup, 1)
    )
  )
 

jsuereth

Lambda DOGE

A really dumb idea put into an even dumber spec.

Notes: Grammar is probably ambiguous. Too lazy to actually implement right now, but was playing with syntactic ideas to stay true to the Meme AND to lambda calculus.

Basic Grammar

Any whitespace acts as a token delimiter.

jsuereth

#!/bin/bash

declare -r java_dirs=$(ls /usr/lib/jvm)
declare -r default_java=java-6-openjdk-amd64

function findJavaHome() {
  if test "$1" == ""; then
    java_version="$default_java"
  else
    java_version="$1"

jsuereth

scala> case class Foo private(x: Int)
defined class Foo

scala> Foo(5)
res5: Foo = Foo(5)

jsuereth

<?xml version="1.0" encoding="UTF-8"?>
 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
 
  <groupId>org.scala-tools.maven-scala-plugin</groupId>
  <artifactId>testJavaAndScala</artifactId>
  <version>1.0-SNAPSHOT</version>
  <name>Test for Java + Scala compilation</name>

jsuereth

Welcome to Scala version 2.8.0.r0-b20090301210344 (Java HotSpot(TM) Client VM, Java 1.6.0_10).
Type in expressions to have them evaluated.
Type :help for more information.

scala> trait ReponseHelper[A];  
defined trait ReponseHelper                            ^

scala> def doSomething[A](x : ReponseHelper[_ <: A]) : A = null.asInstanceOf[A] 
doSomething: [A](ReponseHelper[_ <: A])A                       ^

jsuereth

josh@suereth-desktop:~/projects/blog/s99$ scala
Welcome to Scala version 2.7.1.final (OpenJDK Client VM, Java 1.6.0_0).
Type in expressions to have them evaluated.
Type :help for more information.

scala> def x(one:Int, two:Int, three:Int, four:Int, five:Int, six:Int, seven:int, eight:int, nine:Int, ten:Int, eleven:Int, twelve:Int, thirteen:Int, fourteen:Int, fifteen:Int, sixteen:Int, seventeen:Int, eighteen:Int, nineteen:Int, twenty:Int, twentyone:Int, twentytwo:Int, twentythree:Int) = one + two
x: (Int,Int,Int,Int,Int,Int,int,int,Int,Int,Int,Int,Int,Int,Int,Int,Int,Int,Int,Int,Int,Int,Int)Int

scala> x _
<console>:6: error: missing arguments for method x in object $iw;

jsuereth

Welcome to Scala version 2.8.0.r21454-b20100411185142 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_15).
Type in expressions to have them evaluated.
Type :help for more information.

scala> val x : Int => Unit = y => println(y)
x: (Int) => Unit = <function1>

scala> x(v1 = 2)
2

jsuereth

scala> class Foo {
     |   type T = this.type
     |   def cloneit : T = {
     |     val x = new Foo
     |     x match {
     |       case y : T => y
     |       case _ => error("ZOMG")
     |     }
     |   }
     | }