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require 'tins/temp_io'
module Tins
module TempIO
class Enum < Enumerator
include Tins::TempIO
def initialize(chunk_size: 2 ** 16, filename: nil, &content_proc)
content_proc or raise ArgumentError, 'need a content proc as block argument'
super() do |y|
temp_io(name: 'some-stream', content: content_proc) do |file|
until file.eof?
y.yield file.read(chunk_size)
end
end
end.tap do |enum|
if filename
enum.define_singleton_method(:filename) do
filename
end
end
end
end
end
end
end
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