55 lines
1.3 KiB
Ruby
55 lines
1.3 KiB
Ruby
module Concurrent
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# @!visibility private
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module Utility
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# @private
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module NativeInteger
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# http://stackoverflow.com/questions/535721/ruby-max-integer
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MIN_VALUE = -(2**(0.size * 8 - 2))
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MAX_VALUE = (2**(0.size * 8 - 2) - 1)
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def ensure_upper_bound(value)
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if value > MAX_VALUE
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raise RangeError.new("#{value} is greater than the maximum value of #{MAX_VALUE}")
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end
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value
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end
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def ensure_lower_bound(value)
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if value < MIN_VALUE
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raise RangeError.new("#{value} is less than the maximum value of #{MIN_VALUE}")
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end
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value
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end
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def ensure_integer(value)
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unless value.is_a?(Integer)
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raise ArgumentError.new("#{value} is not an Integer")
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end
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value
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end
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def ensure_integer_and_bounds(value)
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ensure_integer value
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ensure_upper_bound value
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ensure_lower_bound value
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end
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def ensure_positive(value)
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if value < 0
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raise ArgumentError.new("#{value} cannot be negative")
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end
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value
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end
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def ensure_positive_and_no_zero(value)
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if value < 1
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raise ArgumentError.new("#{value} cannot be negative or zero")
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end
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value
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end
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extend self
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end
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end
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end
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