class TrustyCms::AdminUI::RegionPartials

def [](key)
  @partials[key.to_s]
end

def initialize(template)
  @partials = Hash.new { |h, k| h[k] = "<strong>`#{k}' default partial not found!</strong>" }
  @template = template
end

def method_missing(method, *_args, &block)
  if block_given?
    # Ruby 1.9.2 yields self in instance_eval... see https://gist.github.com/479572
    # lambdas are as strict as methods in 1.9.x, making sure that the args match, Procs are not.
    if RUBY_VERSION =~ /^1\.9/ && block.lambda? && (block.arity != 1)
      raise "You can only pass a proc ('Proc.new') or a lambda that takes exactly one arg (for self) to TrustyCms::AdminUI::RegionPartials' method_missing."
    end
    @partials[method.to_s] = @template.capture(&block)
  else
    @partials[method.to_s]
  end
end