Module: AwsDevUtils::Utils

Included in:
CacheWrapper, ClientWrapper
Defined in:
lib/aws-dev-utils/utils.rb

Class Method Summary collapse

Class Method Details

.nested_hash(obj) ⇒ Hash

Transforms an object to a nested hash.

Returns:

  • (Hash) 


29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
 
# File 'lib/aws-dev-utils/utils.rb', line 29

def nested_hash obj
  if obj.kind_of? Array
    obj.map(&method(__method__))
  elsif obj.respond_to?(:to_h)
    obj.to_h.each_with_object({}) do |(k,v), acc|
      acc[k] = case v
               when Hash,OpenStruct then send(__method__,v)
               when Array then v.map(&method(__method__))
               else v
               end
    end
  else
    obj
  end
end

.nested_struct(obj) ⇒ OpenStruct

Transforms an object to a nested struct.

Returns:

  • (OpenStruct) 


8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
# File 'lib/aws-dev-utils/utils.rb', line 8

def nested_struct obj
  case obj
  when Hash
    obj.each_with_object(OpenStruct.new) do |(k,v), acc|
      acc[k]= case v
              when Hash then send(__method__,v)
              when Array then v.map(&method(__method__))
              else v
              end
      end.
      tap{|x| x.define_singleton_method(:keys){ obj.to_h.keys }}.
      tap{|x| x.define_singleton_method(:values){ AwsDevUtils::Utils.nested_struct obj.to_h.values }}
  when Array
    obj.map(&method(__method__))
  else
    obj
  end
end