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# frozen_string_literal: true
require 'delegate'
module Benchmark
module Memory
# Transforms raw numbers into a human-readable scale and suffix
class HumanReadableUnit < SimpleDelegator
# @return [Integer] the exponential scale of the value
def scale
scale = Math.log10(__getobj__)
scale = 0 if scale.infinite?
scale = (scale / 3).to_i
if scale <= 5
scale
else
0
end
end
# @return [String] the single-character unit for the value
def unit
case scale
when 1 then 'k'
when 2 then 'M'
when 3 then 'B'
when 4 then 'T'
when 5 then 'Q'
else ' '
end
end
end
end
end
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