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$ go run bla.go
runtime: garbage collector found invalid heap pointer *(0x2081ce020+0x0)=0x1 s=nil
runtime: found *(0x2081b9ce0+0x28) = 0x2081ce020+0x0
fatal error: bad pointer

runtime stack:
runtime.throw(0x151ab9)
	/usr/local/Cellar/go/1.4/libexec/src/runtime/panic.go:491 +0xad fp=0x7fff5fbff1a0 sp=0x7fff5fbff170
scanblock(0x2081b9ce0, 0x240, 0x1065e8)
	/usr/local/Cellar/go/1.4/libexec/src/runtime/mgc0.c:412 +0x989 fp=0x7fff5fbff2e0 sp=0x7fff5fbff1a0

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module AllowMacros

  def self.included(mod)
    mod.extend ClassMethods
  end
 
  module ClassMethods

    FILTER_METHOD = :check_permission

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  def self.allow(roles, options = {})
    class_eval do 
      def check_permission
        # Insert your application logic here
        if current_user.nil? or !current_user.roles.exists?(:id => roles)
          flash[:notice] = "Go away!"
          return check_and_redirect_to("/login")
        end
      end
    end

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module FailingMacros
  def self.included(base)
    base.send(:extend, ClassMethods)
  end

  module ClassMethods
    def should_indeed_fail
      it "should indeed fail" do
        fail "Just fail"
      end

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# Métodos que me fazem chorar...
def self.recently_accessed
  find :all, :conditions => { :id => [186,268,234,107,176] }
end

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# Codigo que me faz chorar
Proc.new { eval(my_string) }.call

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require 'capistrano/ext/multistage'

set :application, "minha_app"
set :repository,  "meu_repositorio"
set :scm, :git

set :use_sudo, false

set :ssh_options, { :forward_agent => true }

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module PagseguroHelper
  def pagseguro_form(order)
    content_tag(:form, :id => "pagseguro", :target => 'pagseguro', :method => 'post', :action => 'https://pagseguro.uol.com.br/security/webpagamentos/webpagto.aspx') do
      result = ""
      result << hidden_field_tag(:email_cobranca, 'seu@email.com')
      result << hidden_field_tag(:tipo, 'CP') # Chumbado
      result << hidden_field_tag(:moeda, 'BRL') # Chumbado
      result << hidden_field_tag(:ref_transacao, order.id)
      result << hidden_field_tag(:encoding, 'utf-8')
      result << hidden_field_tag(:tipo_frete, 'SD') # Sedex - pro pagseguro calcular o frete automagicamente

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# NOTE: Inline templates defined in the source file that requires sinatra are automatically
# loaded. 
# Call `enable :inline_templates` explicitly if you have inline templates in other source
# files.

  require 'rubygems'
  require 'sinatra'

  get '/' do

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require 'rubygems'

gem "rack", "1.0.1"
gem "sinatra", "1.0"
gem "hpricot", "0.8.2"
gem "amatch", "0.2.5"
gem "sinatra-content-for"
gem "json"