BrendanEich

// XXX should be standard (and named clone, after Java?)
Object.prototype.copy = function () {
    let o = {}
    for (let i in this)
        o[i] = this[i]
    return o
}

// Containment testing for arrays and strings that should be coherent with their iterator.
Array.prototype.contains = String.prototype.contains = function (e) {

stefmoon

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f943ff492ad, pid=13265, tid=1116805440
#
# JRE version: 6.0_32-b05
# Java VM: OpenJDK (Taobao) 64-Bit Server VM (20.0-b12-internal mixed mode linux-amd64 compressed oops)
# Problematic frame:
# J  java.lang.Object.<init>()V
#

Ninputer

Program:

 class Program
 {
     string myString;

     private Program()
     {
         myString = "foo";
     }

gist:2967637

Program:

 class Program
 {
     string myString;

     private Program()
     {
         myString = "foo";
     }

authorNari

CRubyのGCの構造改革

やりたいこと

以下の6つの機能を分離し、簡単に切り替えられるようにしたい。

1. OSからのメモリアロケータ

• OSからメモリアロケートする部分のAPI

2. Rubyのヒープ管理

• ヒープの設定を保持

szegedi

Table of names of MemoryManagerMXBean and MemoryPoolMXBean instances under
different GC algorithms in Oracle HotSpot VM. Memory managers list the pools
they manage in square brackets; memory pools show their maximum sizes for -Xmx200M setting.

$ java -version
java version "1.6.0_24"
Java(TM) SE Runtime Environment (build 1.6.0_24-b07)
Java HotSpot(TM) 64-Bit Server VM (build 19.1-b02, mixed mode)

SerialGC:

ytoshima

AbstractInterpreter::_code : StubQueue * = 0xb49150c0
_stub_buffer    : 0xb6f7a6c0
_number_of_stubs: 0x103
Codelet @ 0xb6f7a6c0      128   -1 0xffffffff  0x10c81a1:	 "slow signature handler"
Dump of assembler code from 0xb6f7a6e0 to 0xb6f7a740:
   0xb6f7a6e0:	mov    %esp,%ecx
   0xb6f7a6e2:	call   0xb6f7a6ec
   0xb6f7a6e7:	jmp    0xb6f7a73f
   0xb6f7a6ec:	push   %ecx
   0xb6f7a6ed:	push   %edi

headius

#!/bin/sh
# This script is for building the hsx/hotspot-comp branch in isolation.
#
# Prerequisites:
# * appropriate build tools
# * a working Sun Java 6 build (i.e. JDK6) is available at:
#     HOME/java/re/j2se/1.6.0/latest/binaries/linux-[i586/amd64]
# * a working Sun Java 7 build (i.e. JDK7) is available at:
#     HOME/java/re/j2se/1.7.0/latest/binaries/linux-[i586/amd64]
#     HOME/java/re/j2se/1.7.0/promoted/latest/binaries/linux-[i586/amd64]

gist:1108283

package com.headius.indy.examples;

import java.lang.invoke.MethodHandle;
import static java.lang.invoke.MethodHandles.*;
import static java.lang.invoke.MethodType.*;
import java.lang.invoke.MutableCallSite;

public class IndyLoop {
    public static void main(String[] args) throws Throwable {
        // method handle loop adds up numbers from 1 to args[0].to_i

mattpodwysocki

let inline name (x : ^T) = (^T : (member Name : string) (x))
let inline age (x : ^T) = (^T : (member Age : int) (x))
let inline nameAndAge x = (name x, age x)

type Person(name : string, age : int) =
  member __.Name = name
  member __.Age = age

type Employee(name : string, age : int, employeeId : string) =
  member __.Name = name