33 lines
790 B
Ruby
33 lines
790 B
Ruby
# frozen_string_literal: true
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module Gitlab
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module RelativePositioning
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STEPS = 10
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IDEAL_DISTANCE = 2**(STEPS - 1) + 1
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MIN_POSITION = Gitlab::Database::MIN_INT_VALUE
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START_POSITION = 0
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MAX_POSITION = Gitlab::Database::MAX_INT_VALUE
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MAX_GAP = IDEAL_DISTANCE * 2
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MIN_GAP = 2
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NoSpaceLeft = Class.new(StandardError)
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InvalidPosition = Class.new(StandardError)
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IllegalRange = Class.new(ArgumentError)
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IssuePositioningDisabled = Class.new(StandardError)
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def self.range(lhs, rhs)
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if lhs && rhs
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ClosedRange.new(lhs, rhs)
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elsif lhs
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StartingFrom.new(lhs)
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elsif rhs
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EndingAt.new(rhs)
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else
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raise IllegalRange, 'One of rhs or lhs must be provided' unless lhs && rhs
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end
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end
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end
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end
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