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module Moneta
# This is for adapters that conform to the DBM interface
# @api private
module DBMAdapter
include HashAdapter
# (see Proxy#close)
def close
@backend.close
nil
end
# (see Proxy#merge!)
def merge!(pairs, options = {})
hash =
if block_given?
keys = pairs.map { |k, _| k }
old_pairs = Hash[slice(*keys)]
Hash[pairs.map do |key, new_value|
new_value = yield(key, old_pairs[key], new_value) if old_pairs.key?(key)
[key, new_value]
end.to_a]
else
Hash === pairs ? pairs : Hash[pairs.to_a]
end
@backend.update(hash)
self
end
end
end
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