Another alternative to OpenStruct that is searchable with xpath like syntax and goes deeper in consuming the passed Hash and transforming it back to Hash or JSON.
Example of a response body in JSON.
"{\"object\":{\"a\":\"bau bau\",\"c\":\"boo boo\"},\"array\":[{\"one\":1,\"two\":2,\"three\":3}],\"two words\":\"Foo bar\"}"SdStruct inspects as OpenStruct would inspect.
## with OpenStruct
ostruct = JSON.parse(json, object_class: OpenStruct)
# => #<OpenStruct object=#<OpenStruct a="bau bau", c="boo boo">,
# array=[#<OpenStruct one=1, two=2, three=3>], two words="Foo bar">
ostruct["two words"]
# => "Foo bar"
## with SdStruct
sd_struct = JSON.parse(json, object_class: SdStruct)
# => #<SdStruct object=#<SdStruct a="bau bau", c="boo boo">,
# array=[#<SdStruct one=1, two=2, three=3>], two words="Foo bar">
sd_struct["two words"]
# => "Foo bar"
# By the way, you can also use `send` method to access spaced key/field
o_struct.send("two words")
sd_struct.send("two words")
# => "Foo bar"OpenStruct's
to_hdoesn't return a hash deeply.
## OpenStruct
o_struct.to_h
# => {:object=>#<OpenStruct a="bau bau", c="boo boo">,
# :array=>[#<OpenStruct one=1, two=2, three=3>], :"two words"=>"Foo bar"}
## SdStruct
sd_struct.to_h
# => {:object=>{:a=>"bau bau", :c=>"boo boo"},
# :array=>[{:one=>1, :two=>2, :three=>3}], "two words"=>"Foo bar"}OpenStruct doesn't have search or deep digging functionalities
sd_struct.find('object/a')
# => "bau bau"
sd_struct.find('/array/0/one')
# => 1
sd_struct.find('object->a', separator: '->')
# => "bau bau"
# You can push it to find deeper. It will return the first occurrence of the matched field
sd_struct.find('.array..one', separator: '.')
# => 1
sd_struct.find('//a')
# => "bau bau"
sd_struct.find('//0/one')
# => 1
sd_struct.find('//one')
# => 1
sd_struct.find('//four')
# => nil
sd_struct.dig_deep(0, :one)
# => 1
sd_struct.dig_deep(:one)
# => 1Example of a Hash.
{
:object => {
:a => "bau bau",
:c => "boo boo"
},
:array => [
{
:one => 1,
:two => 2,
:three => 3
}
],
"two words" => "Foo bar"
}OpensStruct doesn't consume a hash deeply
## with OpenStruct
o_struct = OpenStruct.new(hash)
# => #<OpenStruct object={:a=>"bau bau", :c=>"boo boo"},
# array=[{:one=>1, :two=>2, :three=>3}], two words="Foo bar">
## with SdStruct
sd_struct = SdStruct.new(hash)
# => #<SdStruct .object=#<SdStruct .a="bau bau", .c="boo boo">,
# .array=[#<SdStruct .one=1, .two=2, .three=3>], ['two words']="Foo bar">And then execute:
$ bundle
Or install it yourself as:
$ gem install activesupport
In your code:
require 'active_support/all'$ ruby bench/initialization.rb
Initialization
Warming up --------------------------------------
ostruct 23.719k i/100ms
finer_struct/mutable 21.343k i/100ms
finer_struct/immutable
20.148k i/100ms
hashugar 17.404k i/100ms
hashie/mash 8.790k i/100ms
hashr 5.875k i/100ms
sd_struct 13.516k i/100ms
Calculating -------------------------------------
ostruct 355.611k (±15.1%) i/s - 1.731M in 5.045464s
finer_struct/mutable 285.687k (±15.2%) i/s - 1.387M in 5.020978s
finer_struct/immutable
311.364k (± 6.6%) i/s - 1.551M in 5.011959s
hashugar 237.504k (± 2.7%) i/s - 1.201M in 5.060197s
hashie/mash 110.607k (±17.4%) i/s - 527.400k in 5.003895s
hashr 78.312k (± 9.7%) i/s - 387.750k in 5.004247s
sd_struct 201.086k (±13.7%) i/s - 986.668k in 5.015946s
Comparison:
ostruct: 355611.1 i/s
finer_struct/immutable: 311364.4 i/s - same-ish: difference falls within error
finer_struct/mutable: 285686.7 i/s - same-ish: difference falls within error
hashugar: 237503.8 i/s - 1.50x slower
sd_struct: 201085.5 i/s - 1.77x slower
hashie/mash: 110606.6 i/s - 3.22x slower
hashr: 78311.9 i/s - 4.54x slower$ ruby bench/getter.rb
Getter
Warming up --------------------------------------
ostruct 62.616k i/100ms
hashie/mash 32.544k i/100ms
hashr 39.530k i/100ms
hashugar 47.171k i/100ms
sd_struct 64.453k i/100ms
Calculating -------------------------------------
ostruct 3.807M (± 4.0%) i/s - 19.035M in 5.009086s
hashie/mash 731.653k (± 4.2%) i/s - 3.677M in 5.035053s
hashr 1.081M (± 3.3%) i/s - 5.416M in 5.014805s
hashugar 1.631M (± 1.9%) i/s - 8.161M in 5.006753s
sd_struct 3.969M (± 2.3%) i/s - 19.852M in 5.005272s
Comparison:
sd_struct: 3968540.0 i/s
ostruct: 3806506.9 i/s - same-ish: difference falls within error
hashugar: 1630525.2 i/s - 2.43x slower
hashr: 1081108.5 i/s - 3.67x slower
hashie/mash: 731653.2 i/s - 5.42x slower$ ruby bench/setter.rb
Setter
Warming up --------------------------------------
ostruct 48.906k i/100ms
hashie/mash 10.925k i/100ms
hashr 26.087k i/100ms
hashugar 37.424k i/100ms
sd_struct 50.481k i/100ms
Calculating -------------------------------------
ostruct 1.993M (± 5.5%) i/s - 9.977M in 5.022685s
hashie/mash 149.320k (± 1.9%) i/s - 753.825k in 5.050346s
hashr 475.269k (± 2.0%) i/s - 2.400M in 5.051718s
hashugar 1.001M (± 3.2%) i/s - 5.015M in 5.015471s
sd_struct 1.921M (± 4.8%) i/s - 9.591M in 5.005693s
Comparison:
ostruct: 1992500.5 i/s
sd_struct: 1921339.3 i/s - same-ish: difference falls within error
hashugar: 1000912.9 i/s - 1.99x slower
hashr: 475268.8 i/s - 4.19x slower
hashie/mash: 149319.7 i/s - 13.34x slower$ ruby bench/deep_initialization.rb
Deep Initialization
Warming up --------------------------------------
hashugar 10.180k i/100ms
hashie/mash 4.863k i/100ms
hashr 3.111k i/100ms
sd_struct 9.024k i/100ms
Calculating -------------------------------------
hashugar 135.930k (± 2.5%) i/s - 682.060k in 5.021100s
hashie/mash 57.260k (± 1.3%) i/s - 286.917k in 5.011621s
hashr 36.165k (± 7.7%) i/s - 180.438k in 5.032553s
sd_struct 111.588k (± 6.4%) i/s - 559.488k in 5.046688s
Comparison:
hashugar: 135929.6 i/s
sd_struct: 111588.5 i/s - 1.22x slower
hashie/mash: 57259.7 i/s - 2.37x slower
hashr: 36164.5 i/s - 3.76x slower$ ruby bench/deep_getter.rb
Deep Getter
Warming up --------------------------------------
hashie/mash 21.798k i/100ms
hashr 26.628k i/100ms
hashugar 34.012k i/100ms
sd_struct 53.437k i/100ms
Calculating -------------------------------------
hashie/mash 394.113k (± 4.5%) i/s - 1.984M in 5.044513s
hashr 551.904k (± 1.9%) i/s - 2.769M in 5.019679s
hashugar 862.010k (± 1.4%) i/s - 4.320M in 5.011998s
sd_struct 2.110M (± 8.6%) i/s - 10.420M in 5.016246s
Comparison:
sd_struct: 2110253.6 i/s
hashugar: 862010.3 i/s - 2.45x slower
hashr: 551903.9 i/s - 3.82x slower
hashie/mash: 394112.6 i/s - 5.35x slower$ ruby bench/deep_setter.rb
Deep Setter
Warming up --------------------------------------
hashie/mash 5.145k i/100ms
hashr 5.378k i/100ms
hashugar 25.964k i/100ms
sd_struct 13.419k i/100ms
Calculating -------------------------------------
hashie/mash 61.130k (± 3.3%) i/s - 308.700k in 5.056208s
hashr 62.056k (± 1.4%) i/s - 311.924k in 5.027385s
hashugar 516.481k (± 1.9%) i/s - 2.596M in 5.028998s
sd_struct 195.273k (± 2.1%) i/s - 979.587k in 5.018694s
Comparison:
hashugar: 516480.7 i/s
sd_struct: 195272.8 i/s - 2.64x slower
hashr: 62056.5 i/s - 8.32x slower
hashie/mash: 61130.5 i/s - 8.45x slower$ ruby bench/to_h.rb
\#to_h
Original Hash: {"a"=>"a", :b=>"b"}
OpenStruct: {:a=>"a", :b=>"b"}
Hashie::Mash: {"a"=>"a", "b"=>"b"}
Hashr: {:a=>"a", :b=>"b"}
Hashugar: {"a"=>"a", :b=>"b"}
SdStruct: {"a"=>"a", :b=>"b"}
Warming up --------------------------------------
ostruct 29.118k i/100ms
hashie/mash 46.945k i/100ms
hashr 10.818k i/100ms
hashugar 49.588k i/100ms
sd_struct 48.183k i/100ms
Calculating -------------------------------------
ostruct 609.813k (± 2.4%) i/s - 3.057M in 5.016669s
hashie/mash 1.378M (± 1.8%) i/s - 6.901M in 5.009253s
hashr 136.990k (± 2.0%) i/s - 692.352k in 5.056100s
hashugar 1.630M (± 2.9%) i/s - 8.182M in 5.024282s
sd_struct 1.609M (± 6.0%) i/s - 8.047M in 5.020611s
Comparison:
hashugar: 1629886.1 i/s
sd_struct: 1609137.2 i/s - same-ish: difference falls within error
hashie/mash: 1378083.4 i/s - 1.18x slower
ostruct: 609812.7 i/s - 2.67x slower
hashr: 136990.4 i/s - 11.90x slower$ ruby bench/to_json.rb
\#to_json
OpenStruct: "#<OpenStruct a=\"a\", b=\"b\">"
Hashie::Mash: {"a":"a","b":"b"}
Hashr:
Hashugar: "#<Hashugar:0x00007fffdfbead98>"
SdStruct: {"a":"a","b":"b"}
Warming up --------------------------------------
hashie/mash 6.444k i/100ms
sd_struct 10.834k i/100ms
Calculating -------------------------------------
hashie/mash 77.011k (± 1.7%) i/s - 386.640k in 5.021927s
sd_struct 143.077k (± 2.0%) i/s - 715.044k in 4.999559s
Comparison:
sd_struct: 143076.8 i/s
hashie/mash: 77011.2 i/s - 1.86x slower
``
### Deep \#to_h
```sh
$ ruby bench/deep_to_h.rb
Deep \#to_h
Hashie::Mash: {"a"=>#<Hashie::Mash b="b">}
Hashr: {:a=>{:b=>"b"}}
Hashugar: {"a"=>{:b=>"b"}}
SdStruct: {"a"=>{:b=>"b"}}
Warming up --------------------------------------
hashie/mash 42.458k i/100ms
hashr 9.632k i/100ms
hashugar 49.011k i/100ms
sd_struct 48.960k i/100ms
Calculating -------------------------------------
hashie/mash 1.297M (± 4.6%) i/s - 6.496M in 5.020400s
hashr 124.548k (± 1.5%) i/s - 626.080k in 5.028001s
hashugar 1.947M (± 3.4%) i/s - 9.753M in 5.015420s
sd_struct 1.894M (± 3.4%) i/s - 9.498M in 5.022113s
Comparison:
hashugar: 1947158.3 i/s
sd_struct: 1893594.3 i/s - same-ish: difference falls within error
hashie/mash: 1297445.4 i/s - 1.50x slower
hashr: 124547.7 i/s - 15.63x slower$ ruby bench/deep_to_json.rb
Deep \#to_json
Hashie::Mash: {"a":{"b":"b"}}
Hashr:
Hashugar: "#<Hashugar:0x00007fffb95885c0>"
SdStruct: {"a":{"b":"b"}}
Warming up --------------------------------------
hashie/mash 5.796k i/100ms
sd_struct 9.692k i/100ms
Calculating -------------------------------------
hashie/mash 62.437k (±16.3%) i/s - 301.392k in 5.043041s
sd_struct 120.555k (±18.9%) i/s - 581.520k in 5.053842s
Comparison:
sd_struct: 120555.1 i/s
hashie/mash: 62437.1 i/s - 1.93x slower$ ruby bench/object_class.rb
JSON#parse :object_class
OpenStruct: #<OpenStruct object=#<OpenStruct a="bau bau", c="boo boo">, array=[#<OpenStruct one=1, two=2, three=3>], two words="Foo bar">
Hashie::Mash: #<Hashie::Mash array=#<Hashie::Array [#<Hashie::Mash one=1 three=3 two=2>]> object=#<Hashie::Mash a="bau bau" c="boo boo"> two words="Foo bar">
SdStruct: #<SdStruct object=#<SdStruct a="bau bau", c="boo boo">, array=[#<SdStruct one=1, two=2, three=3>], two words="Foo bar">
Warming up --------------------------------------
ostruct 915.000 i/100ms
hashie/mash 1.079k i/100ms
sd_struct 1.045k i/100ms
Calculating -------------------------------------
ostruct 11.261k (± 5.5%) i/s - 56.730k in 5.053413s
hashie/mash 11.139k (± 1.4%) i/s - 56.108k in 5.037903s
sd_struct 10.584k (± 4.6%) i/s - 53.295k in 5.045103s
Comparison:
ostruct: 11261.4 i/s
hashie/mash: 11139.5 i/s - same-ish: difference falls within error
sd_struct: 10584.3 i/s - same-ish: difference falls within error$ ruby bench/sd_struct_getters.rb
SdStruct Getters
Warming up --------------------------------------
method chain 48.824k i/100ms
xpath absolute 1.927k i/100ms
xpath relative 1.394k i/100ms
Calculating -------------------------------------
method chain 1.660M (± 3.2%) i/s - 8.300M in 5.004975s
xpath absolute 20.278k (± 1.7%) i/s - 102.131k in 5.038094s
xpath relative 14.291k (± 1.7%) i/s - 72.488k in 5.073917s
Comparison:
method chain: 1660214.5 i/s
xpath absolute: 20277.9 i/s - 81.87x slower
xpath relative: 14290.7 i/s - 116.17x slowerAdd this line to your application's Gemfile:
gem 'sd_struct'And then execute:
$ bundle
Or install it yourself as:
$ gem install sd_struct
Hashugar and OpenStruct are some of the primary sources of inspiration for this project. It closely follows the way Hashugar takes nested hash input and the way OpenStruct creates method on the first call.
- Add charts and tables for the benchmarks.
- Fork it ( https://github.com/styd/sd_struct/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request