tagomoris

"Namespace on read"とは

これは、Rubyに仮想的なトップレベル名前空間を導入するためのNamespaceを提案します。NamespaceはRubyスクリプトかネイティブ拡張ライブラリかを問わず、ライブラリをグローバル名前空間から独立した形でrequire/loadします。

動機

"Namespace on read"は次の2つの問題を解決し、また1つの問題について解決の道筋を提供します。

• ライブラリ(等)間での名前の衝突を避ける
• グローバルに共有されたライブラリ/オブジェクトの意図しない変更を避ける

tagomoris

require 'socket'

PORT = 8088

server = TCPServer.open(PORT)
children = []
puts "server.0 starting children"
9.times do |i|
  num = i + 1 # 0 is for main
  children << Thread.start(server) do |s|

tagomoris

require 'msgpack'

# x = "\x82\xA9condition\xA2OR\xA6groups\x92\x82\xA9condition\xA2or\xA7filters\x91\x83\xA3col\xAAbirth_date\x
# A3ope\xA5month\xA3val\xA12\x82\xA9condition\xA2or\xA7filters\x91\x83\xA3col\xADshare_capital\xA3ope\xB3greater_or_equal_
# th\xDD\x98[)\x8DL\f\v\x8C\f"

# MessagePack.unpack x

x2 = "\x82\xA9condition\xA2OR\xA6groups\x92\x82\xA9condition\xA2or\xA7filters\x91\x83\xA3col\xAAbirth_date\xA3ope\xA5month\xA3val\xA12\x82\xA9condition\xA2or\xA7filters\x91\x83\xA3col\xADshare_capital\xA3ope\xB3greater_or_equal_th\xDD\x98[)\x8DL\f\v\x8C\f"

tagomoris

[
    {"name": "Amina Frost", "country": "US", "city": "Hammond", "amount": 30},
    {"name": "Mehak Flowers", "country": "US", "city": "Kansas City", "amount": 41},
    {"name": "Angharad Davie", "country": "AU", "city": "Queenstown", "amount": 31},
    {"name": "Hannah Robins", "country": "UK", "city": "Langport", "amount": 1},
    {"name": "Romilly Lowe", "country": "US", "city": "Kansas City", "amount": 10},
    {"name": "Komal Donaldson", "country": "UK", "city": "Langport", "amount": 19},
    {"name": "Florence Andrew", "country": "US", "city": "Kansas City", "amount": 7}
]

tagomoris

class Foo
  def initialize
    @closed = false
  end

  def close
    @closed = true
  end

  def closed?

tagomoris

access-log: /dev/null
hosts:
  "localhost":
    listen: 8384
    paths:
      "/t":
        mruby.handler: |
          class Foo
            def initialize(ch, a)
              @ch = ch

tagomoris

class X
  NAME1 = "name1"
  NAME2 = "name2"
  NAME3 = "name3"

  def replace_name_0(record, name)
    record
  end

  def replace_name_1(record, name)

tagomoris

{:here=>"write0", :length=>124}
{:read=>
  {:timekey=>24998551,
   :tagkey=>"hoge.pos.moge.hogehogehogehoge",
   :keys=>{:moge=>111},
   :id=>"d0d71b3d-b680-4549-b805-a08825e0f71d",
   :s=>1024,
   :c=>1499913050,
   :m=>1499913110}}
{:here=>"write1", :length=>102}

tagomoris

vagrant@vagrant-ubuntu-trusty-64:/vagrant$ ruby hoge.rb 
{:here=>"rescue", :closed=>true, :error=>#<IOError: stream closed>}
vagrant@vagrant-ubuntu-trusty-64:/vagrant$ ruby -e 'puts RUBY_VERSION'
2.3.3
vagrant@vagrant-ubuntu-trusty-64:/vagrant$ ruby -v
ruby 2.3.3p222 (2016-11-21 revision 56859) [x86_64-linux-gnu]

tagomoris

$ ruby hoge.rb 
{:here=>"creating socket"}
{:here=>"creating sslsocket"}
:here=>"socket.new"}

{:here=>"connecting"}
{:here=>"calling super"}
{:here=>"super called"}
{:here=>"on_connect"}
{:here=>"trying accept", :accepted=>false}