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## Before
```
$ ruby bench_json_generate.rb
Warming up --------------------------------------
json 25.000 i/100ms
Calculating -------------------------------------
json 250.478 (± 4.8%) i/s - 1.250k in 5.002238s
```
## After
```
$ ruby bench_json_generate.rb
Warming up --------------------------------------
json 32.000 i/100ms
Calculating -------------------------------------
json 360.652 (± 3.6%) i/s - 1.824k in 5.064511s
```
## Test code
```
require 'json'
require 'benchmark/ips'
obj = []
1000.times do |i|
obj << {
:string => "x" * 100,
:utf8 => "あ" * 100
}
end
Benchmark.ips do |x|
x.report "json" do |iter|
count = 0
while count < iter
JSON.generate(obj)
count += 1
end
end
end
```
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## Before
```
$ ruby bench_json_generate.rb
Warming up --------------------------------------
json 129.000 i/100ms
Calculating -------------------------------------
json 1.300k (± 2.3%) i/s - 6.579k in 5.064656s
```
## After
```
$ ruby bench_json_generate.rb
Warming up --------------------------------------
json 189.000 i/100ms
Calculating -------------------------------------
json 1.964k (± 3.3%) i/s - 9.828k in 5.011237s
```
## Code
```
require 'json'
require 'benchmark/ips'
obj = []
1000.times do |i|
obj << {
"id" => i,
:age => 42,
}
end
Benchmark.ips do |x|
x.report "json" do |iter|
count = 0
while count < iter
JSON.generate(obj)
count += 1
end
end
end
```
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`rb_funcall` might be slightly heavy to call the Ruby method.
This patch will convert String encoding using `rb_str_encode()` instead of `rb_funcall()`.
## Before
```
$ ruby bench_json_generate.rb
Warming up --------------------------------------
json 78.000 i/100ms
Calculating -------------------------------------
json 789.781 (± 2.7%) i/s - 3.978k in 5.041043s
```
## After
```
$ ruby bench_json_generate.rb
Warming up --------------------------------------
json 129.000 i/100ms
Calculating -------------------------------------
json 1.300k (± 2.3%) i/s - 6.579k in 5.064656s
```
## Code
```
require 'json'
require 'benchmark/ips'
obj = []
1000.times do |i|
obj << {
"id" => i,
:age => 42,
}
end
Benchmark.ips do |x|
x.report "json" do |iter|
count = 0
while count < iter
JSON.generate(obj)
count += 1
end
end
end
```
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In where to convert Hash key to String for json, this patch will add shortcut for String/Symbol in Hash key.
```
$ ruby bench_json_generate.rb
Warming up --------------------------------------
json 65.000 i/100ms
Calculating -------------------------------------
json 659.576 (± 1.5%) i/s - 3.315k in 5.027127s
```
```
$ ruby bench_json_generate.rb
Warming up --------------------------------------
json 78.000 i/100ms
Calculating -------------------------------------
json 789.781 (± 2.7%) i/s - 3.978k in 5.041043s
```
```
require 'json'
require 'benchmark/ips'
obj = []
1000.times do |i|
obj << {
"id" => i,
:age => 42,
}
end
Benchmark.ips do |x|
x.report "json" do |iter|
count = 0
while count < iter
JSON.generate(obj)
count += 1
end
end
end
```
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To convert Hash convert, this part was using following pseudo code
```
obj.keys.each do |key|
value = obj[key]
...
end
```
and `rb_funcall()` was called for `obj.keys`.
It might be slightly heavy to call the Ruby method.
This patch will iterate to convert Hash object about key/value using `rb_hash_foreach()` Ruby API instead of `rb_funcall()`.
```
$ ruby bench_json_generate.rb
Warming up --------------------------------------
json 55.000 i/100ms
Calculating -------------------------------------
json 558.501 (± 1.1%) i/s - 2.805k in 5.022986s
```
```
$ ruby bench_json_generate.rb
Warming up --------------------------------------
json 65.000 i/100ms
Calculating -------------------------------------
json 659.576 (± 1.5%) i/s - 3.315k in 5.027127s
```
```
require 'json'
require 'benchmark/ips'
obj = []
1000.times do |i|
obj << {
"id" => i,
:age => 42,
}
end
Benchmark.ips do |x|
x.report "json" do |iter|
count = 0
while count < iter
JSON.generate(obj)
count += 1
end
end
end
```
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README: Added note about json/add/exception
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Added missing bigdecimal for its test
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README: Fixed code examples to start in the left-most column
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Fixed json_create example to use create_additions = true
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The example doesn't work OOTB, since this flag is _not enabled_ by default.
(Even with this change in place, I cannot get additions to work with the `Range` class. For custom objects it works though, I tested with the example from the `json_addition_test.rb` - that's where I got the working approach.)
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I feel that it's more natural this way. What do you think, do you prefer the current style?
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- Initialize i_new
- Add to changes
- Test on ruby 2.4.1
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for incomplete unicode surrogates/character escape sequences
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CHANGES.md: Fixed typo
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Also:
- Avoid some issues with bundler
- Avoid some issues with jruby
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Correct documentation of OpenStruct.json_create
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