Be Brave in Ruby-land

brave.rb

module Brave
  def self.be(exception_classes = [NoMethodError])
    begin
      yield
    rescue *exception_classes => e
    end
  end
end

brave_wrap.rb

require 'hashie'
require 'monads'

module Brave
  def self.be(exception_classes = [NoMethodError])
    begin
      yield
    rescue *exception_classes => e
    end
  end

  def self.wrap_hash(object)
    Monads::Optional.new(Hashie::Mash.new(object))
  end
end

Brave.wrap_hash(params).profile.resume.tempfile.path.value

monadic_bravery.rb

require 'hashie'
require 'monads'

Monads::Optional.new(Hashie::Mash.new(params)).profile.resume.tempfile.path.value