25 lines
383 B
Ruby
25 lines
383 B
Ruby
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class Frame
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attr_reader :snapshot, :cursor
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def initialize(snapshot, cursor)
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@snapshot = snapshot
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@cursor = cursor
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end
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def diff(other)
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FrameDiff.new(snapshot_diff(other), cursor_diff(other))
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end
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private
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def snapshot_diff(other)
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snapshot.diff(other && other.snapshot)
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end
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def cursor_diff(other)
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cursor.diff(other && other.cursor)
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end
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end
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