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# frozen_string_literal: true
module Gitlab
module Diff
class PositionCollection
include Enumerable
# collection - An array of Gitlab::Diff::Position
def initialize(collection, diff_head_sha = nil)
@collection = collection
@diff_head_sha = diff_head_sha
end
def each(&block)
filtered_positions.each(&block)
end
def concat(positions)
tap { @collection.concat(positions) }
end
# Doing a lightweight filter in-memory given we're not prepared for querying
# positions (https://gitlab.com/gitlab-org/gitlab/issues/33271).
def unfoldable
select do |position|
position.unfoldable? && valid_head_sha?(position)
end
end
private
def filtered_positions
@collection.select { |item| item.is_a?(Position) }
end
def valid_head_sha?(position)
return true unless @diff_head_sha
position.head_sha == @diff_head_sha
end
end
end
end
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