From 1b86d90136efb98c7b331a84ca163587307a49af Mon Sep 17 00:00:00 2001 From: "yuuji.yaginuma" Date: Thu, 17 May 2018 17:32:27 +0900 Subject: Enable `Performance/UnfreezeString` cop MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 ``` --- actionpack/test/controller/routing_test.rb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'actionpack/test/controller/routing_test.rb') diff --git a/actionpack/test/controller/routing_test.rb b/actionpack/test/controller/routing_test.rb index a7033b2d30..a2a811f090 100644 --- a/actionpack/test/controller/routing_test.rb +++ b/actionpack/test/controller/routing_test.rb @@ -674,7 +674,7 @@ class LegacyRouteSetTests < ActiveSupport::TestCase assert_equal "/page/foo", url_for(rs, controller: "content", action: "show_page", id: "foo") assert_equal({ controller: "content", action: "show_page", id: "foo" }, rs.recognize_path("/page/foo")) - token = "\321\202\320\265\320\272\321\201\321\202".dup # 'text' in Russian + token = +"\321\202\320\265\320\272\321\201\321\202" # 'text' in Russian token.force_encoding(Encoding::BINARY) escaped_token = CGI.escape(token) -- cgit v1.2.3