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module Rack
class BodyProxy
def initialize(body, &block)
@body = body
@block = block
@closed = false
end
def respond_to?(method_name, include_all=false)
case method_name
when :to_ary, 'to_ary'
return false
end
super or @body.respond_to?(method_name, include_all)
end
def close
return if @closed
@closed = true
begin
@body.close if @body.respond_to? :close
ensure
@block.call
end
end
def closed?
@closed
end
# N.B. This method is a special case to address the bug described by #434.
# We are applying this special case for #each only. Future bugs of this
# class will be handled by requesting users to patch their ruby
# implementation, to save adding too many methods in this class.
def each
@body.each { |body| yield body }
end
def method_missing(method_name, *args, &block)
super if :to_ary == method_name
@body.__send__(method_name, *args, &block)
end
end
end