kotovalexarian-likes-github/rails--rails
1
0
Fork 0
mirror of https://github.com/rails/rails.git synced 2022-11-09 12:12:34 -05:00
Code Releases Activity
rails--rails/activerecord/test
History
yuuji.yaginuma 1b86d90136 Enable Performance/UnfreezeString cop 
In Ruby 2.3 or later, `String#+@` is available and `+@` is faster than `dup`.

```ruby
# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  gem "benchmark-ips"
end

Benchmark.ips do |x|
  x.report('+@') { +"" }
  x.report('dup') { "".dup }
  x.compare!
end
```

```
$ ruby -v benchmark.rb
ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux]
Warming up --------------------------------------
                  +@   282.289k i/100ms
                 dup   187.638k i/100ms
Calculating -------------------------------------
                  +@      6.775M (± 3.6%) i/s -     33.875M in   5.006253s
                 dup      3.320M (± 2.2%) i/s -     16.700M in   5.032125s

Comparison:
                  +@:  6775299.3 i/s
                 dup:  3320400.7 i/s - 2.04x  slower

```
2018-09-23 08:56:55 +09:00
..
active_record/connection_adapters
assets
cases Enable Performance/UnfreezeString cop 2018-09-23 08:56:55 +09:00
fixtures Eager loading/preloading should be worked regardless of large number of records 2018-09-12 01:11:38 +09:00
migrations Fix occurrences Fixnum|Bignum 2018-03-04 20:44:30 +02:00
models Avoid the same foreign_key and counter_cache associations on SillyReply 2018-09-19 01:11:07 +09:00
schema Use utf8mb4 in all tests and examples 2018-09-21 04:00:25 +09:00
support
config.example.yml Use utf8mb4 character set by default for MySQL database (#33608) 2018-09-11 13:03:34 -07:00
config.rb