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Code is copied from https://github.com/marcandre/backports/blob/master/lib/backports/1.9.2/enumerable/flat_map.rb (MIT License by Marc-Andre Lafortune) Closes Homebrew/homebrew#42543. Signed-off-by: Xu Cheng <xucheng@me.com>
12 lines
270 B
Ruby
12 lines
270 B
Ruby
module Enumerable
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def flat_map
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return to_enum(:flat_map) unless block_given?
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r = []
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each do |*args|
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result = yield(*args)
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result.respond_to?(:to_ary) ? r.concat(result) : r.push(result)
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end
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r
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end unless method_defined?(:flat_map)
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end
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