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Reduce allocations from just loading the gem #1104

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May 27, 2019
Merged

Reduce allocations from just loading the gem #1104

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85 changes: 44 additions & 41 deletions lib/rouge.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -34,51 +34,54 @@ def highlight(text, lexer, formatter, &b)
end
end

load_dir = Pathname.new(__FILE__).dirname
load load_dir.join('rouge/version.rb')
# mimic Kernel#require_relative API
def load_relative(path)
load File.join(__dir__, "#{path}.rb")
end

load load_dir.join('rouge/util.rb')
def lexer_dir(path = '')
File.join(__dir__, 'rouge', 'lexers', path)
end

load load_dir.join('rouge/text_analyzer.rb')
load load_dir.join('rouge/token.rb')
load_relative 'rouge/version'
load_relative 'rouge/util'
load_relative 'rouge/text_analyzer'
load_relative 'rouge/token'

load load_dir.join('rouge/lexer.rb')
load load_dir.join('rouge/regex_lexer.rb')
load load_dir.join('rouge/template_lexer.rb')
load_relative 'rouge/lexer'
load_relative 'rouge/regex_lexer'
load_relative 'rouge/template_lexer'

lexers_dir = load_dir.join('rouge/lexers')
Dir.glob(lexers_dir.join('*.rb')).each do |f|
Rouge::Lexers.load_lexer(Pathname.new(f).relative_path_from(lexers_dir).to_s)
end
Dir.glob(lexer_dir('*rb')).each { |f| Rouge::Lexers.load_lexer(f.sub(lexer_dir, '')) }

load load_dir.join('rouge/guesser.rb')
load load_dir.join('rouge/guessers/util.rb')
load load_dir.join('rouge/guessers/glob_mapping.rb')
load load_dir.join('rouge/guessers/modeline.rb')
load load_dir.join('rouge/guessers/filename.rb')
load load_dir.join('rouge/guessers/mimetype.rb')
load load_dir.join('rouge/guessers/source.rb')
load load_dir.join('rouge/guessers/disambiguation.rb')
load_relative 'rouge/guesser'
load_relative 'rouge/guessers/util'
load_relative 'rouge/guessers/glob_mapping'
load_relative 'rouge/guessers/modeline'
load_relative 'rouge/guessers/filename'
load_relative 'rouge/guessers/mimetype'
load_relative 'rouge/guessers/source'
load_relative 'rouge/guessers/disambiguation'

load load_dir.join('rouge/formatter.rb')
load load_dir.join('rouge/formatters/html.rb')
load load_dir.join('rouge/formatters/html_table.rb')
load load_dir.join('rouge/formatters/html_pygments.rb')
load load_dir.join('rouge/formatters/html_legacy.rb')
load load_dir.join('rouge/formatters/html_linewise.rb')
load load_dir.join('rouge/formatters/html_inline.rb')
load load_dir.join('rouge/formatters/terminal256.rb')
load load_dir.join('rouge/formatters/null.rb')
load_relative 'rouge/formatter'
load_relative 'rouge/formatters/html'
load_relative 'rouge/formatters/html_table'
load_relative 'rouge/formatters/html_pygments'
load_relative 'rouge/formatters/html_legacy'
load_relative 'rouge/formatters/html_linewise'
load_relative 'rouge/formatters/html_inline'
load_relative 'rouge/formatters/terminal256'
load_relative 'rouge/formatters/null'

load load_dir.join('rouge/theme.rb')
load load_dir.join('rouge/themes/thankful_eyes.rb')
load load_dir.join('rouge/themes/colorful.rb')
load load_dir.join('rouge/themes/base16.rb')
load load_dir.join('rouge/themes/github.rb')
load load_dir.join('rouge/themes/igor_pro.rb')
load load_dir.join('rouge/themes/monokai.rb')
load load_dir.join('rouge/themes/molokai.rb')
load load_dir.join('rouge/themes/monokai_sublime.rb')
load load_dir.join('rouge/themes/gruvbox.rb')
load load_dir.join('rouge/themes/tulip.rb')
load load_dir.join('rouge/themes/pastie.rb')
load_relative 'rouge/theme'
load_relative 'rouge/themes/thankful_eyes'
load_relative 'rouge/themes/colorful'
load_relative 'rouge/themes/base16'
load_relative 'rouge/themes/github'
load_relative 'rouge/themes/igor_pro'
load_relative 'rouge/themes/monokai'
load_relative 'rouge/themes/molokai'
load_relative 'rouge/themes/monokai_sublime'
load_relative 'rouge/themes/gruvbox'
load_relative 'rouge/themes/tulip'
load_relative 'rouge/themes/pastie'
4 changes: 1 addition & 3 deletions lib/rouge/lexer.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -454,9 +454,7 @@ module Lexers
def self.load_lexer(relpath)
return if @_loaded_lexers.key?(relpath)
@_loaded_lexers[relpath] = true

root = Pathname.new(__FILE__).dirname.join('lexers')
load root.join(relpath)
load File.join(__dir__, 'lexers', relpath)
end
end
end