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* Add `Style/RedundantFreeze` to remove redudant `.freeze`Yasuo Honda2018-09-291-1/+1
| | | | | | | | | | | | | | | | | | | | | Since Rails 6.0 will support Ruby 2.4.1 or higher `# frozen_string_literal: true` magic comment is enough to make string object frozen. This magic comment is enabled by `Style/FrozenStringLiteralComment` cop. * Exclude these files not to auto correct false positive `Regexp#freeze` - 'actionpack/lib/action_dispatch/journey/router/utils.rb' - 'activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb' It has been fixed by https://github.com/rubocop-hq/rubocop/pull/6333 Once the newer version of RuboCop released and available at Code Climate these exclude entries should be removed. * Replace `String#freeze` with `String#-@` manually if explicit frozen string objects are required - 'actionpack/test/controller/test_case_test.rb' - 'activemodel/test/cases/type/string_test.rb' - 'activesupport/lib/active_support/core_ext/string/strip.rb' - 'activesupport/test/core_ext/string_ext_test.rb' - 'railties/test/generators/actions_test.rb'
* `String#strip_heredoc` preserves frozennessJeremy Daer2018-02-171-1/+3
| | | | | | | | | | | | | | | | | | ```ruby "foo".freeze.strip_heredoc.frozen? # => true ``` Fixes the case where frozen string literals would inadvertently become unfrozen: ```ruby foo = <<-MSG.strip_heredoc la la la MSG foo.frozen? # => false !?? ```
* [Active Support] `rubocop -a --only Layout/EmptyLineAfterMagicComment`Koichi ITO2017-07-111-0/+1
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* Use frozen-string-literal in ActiveSupportKir Shatrov2017-07-091-0/+1
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* Revert "Merge pull request #29540 from kirs/rubocop-frozen-string"Matthew Draper2017-07-021-1/+0
| | | | | This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
* Enforce frozen string in RubocopKir Shatrov2017-07-011-0/+1
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* applies new string literal convention in activesupport/libXavier Noria2016-08-061-1/+1
| | | | | The current code base is not uniform. After some discussion, we have chosen to go with double quotes by default.
* String#strip_heredocs doesn't need Object#tryVlado Cingel2015-09-191-2/+0
| | | | Call to Object#try was removed with this pull request https://github.com/rails/rails/pull/21596
* Improve String#strip_heredocJuanito Fatas2015-09-121-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Saves about 6 MB, about 40% faster. **strip_heredoc.rb** ```ruby require "active_support/core_ext/object/try" require "get_process_mem" class String def strip_heredoc indent = scan(/^[ \t]*(?=\S)/).min.try(:size) || 0 gsub(/^[ \t]{#{indent}}/, '') end end if ENV["MEASURE_MEMORY"] == "yes" mem = GetProcessMem.new GC.start GC.disable 10000.times do <<-MSG.strip_heredoc xhr and xml_http_request methods are deprecated in favor of `get :index, xhr: true` and `post :create, xhr: true` MSG end before = mem.mb after = mem.mb GC.enable puts "Before: #{before} MiB" puts "After: #{after} MiB" puts "Diff: #{after - before} MiB" end ``` **patched_strip_heredoc.rb** ```ruby require "active_support/core_ext/object/try" require "get_process_mem" class String def patched_strip_heredoc gsub(/^#{scan(/^[ \t]*(?=\S)/).min}/, "".freeze) end end if ENV["MEASURE_MEMORY"] == "yes" mem = GetProcessMem.new GC.start GC.disable 10000.times do <<-MSG.patched_strip_heredoc xhr and xml_http_request methods are deprecated in favor of `get :index, xhr: true` and `post :create, xhr: true` MSG end before = mem.mb after = mem.mb GC.enable puts "Before: #{before} MiB" puts "After: #{after} MiB" puts "Diff: #{after - before} MiB" end ``` **Before** ``` $ MEASURE_MEMORY=yes ruby strip_heredoc.rb Before: 44.73828125 MiB After: 44.7734375 MiB Diff: 0.03515625 MiB ``` **After** ``` $ MEASURE_MEMORY=yes ruby patched_strip_heredoc.rb Before: 37.9765625 MiB After: 38.015625 MiB Diff: 0.0390625 MiB ``` `44.7734375 - 38.015625 = 6.75` => **Saves about 6.75 MiB** **benchmark.rb** ```ruby require "benchmark/ips" require_relative "./strip_heredoc" require_relative "./patched_strip_heredoc" def original <<-MSG.strip_heredoc xhr and xml_http_request methods are deprecated in favor of `get :index, xhr: true` and `post :create, xhr: true` MSG end def patched <<-MSG.patched_strip_heredoc xhr and xml_http_request methods are deprecated in favor of `get :index, xhr: true` and `post :create, xhr: true` MSG end Benchmark.ips do |x| x.report("original") { original } x.report(" patched") { patched } x.compare! end ``` ``` $ ruby -v benchmark.rb ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-darwin14] Calculating ------------------------------------- original 5.652k i/100ms patched 6.477k i/100ms ------------------------------------------------- original 54.076k (± 5.7%) i/s - 271.296k patched 74.557k (± 6.2%) i/s - 375.666k Comparison: patched: 74557.0 i/s original: 54076.4 i/s - 1.38x slower ``` => **About 38% faster** 1. Clone rails project `git clone git@github.com:rails/rails.git` 2. Apply this patch to `activesupport/lib/active_support/core_ext/string/strip.rb` 3. `cd activesupport` 4. run `rake` 5. And tests passed: ``` ➜ activesupport $ rake /Users/Juan/.rubies/ruby-2.2.2/bin/ruby -w -I"lib:test" "/Users/Juan/.rubies/ruby-2.2.2/lib/ruby/2.2.0/rake/rake_test_loader.rb" "test/**/*_test.rb" ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ........................................................................ ......................................................................S. SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS Finished in 15.343004s, 214.2344 runs/s, 24902.4898 assertions/s. 3287 runs, 382079 assertions, 0 failures, 0 errors, 48 skips You have skipped tests. Run with --verbose for details. ```
* minor documentation improvement [ci skip]Sam Auciello2015-08-241-2/+2
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* let String#strip_heredoc handle blank lines even if they are not indentedXavier Noria2010-08-301-3/+5
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* implements String#strip_heredocXavier Noria2010-08-291-0/+24
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