Commit Graph

6 Commits

Author SHA1 Message Date
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
Matthew Draper 87b3e226d6 Revert "Merge pull request #29540 from kirs/rubocop-frozen-string"
This reverts commit 3420a14590, reversing
changes made to afb66a5a59.
2017-07-02 02:15:17 +09:30
Matthew Draper 3420a14590 Merge pull request #29540 from kirs/rubocop-frozen-string
Enforce frozen string in Rubocop
2017-07-02 01:11:50 +09:30
Kir Shatrov cfade1ec7e Enforce frozen string in Rubocop 2017-07-01 02:11:03 +03:00
Pat Allan 3d453b409d Make ActionView frozen string literal friendly.
Plus a couple of related ActionPack patches.
2017-06-20 22:20:04 +10:00
Piotr Sarnacki eb23754ebb Move template tests from actionpack to actionview 2013-06-20 17:23:16 +02:00