晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。   林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。   见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝)   既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。   南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。 sh-3ll

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sh-3ll 1.0
DIR:/opt/alt/ruby33/share/rubygems/rubygems/resolver/
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Current File : //opt/alt/ruby33/share/rubygems/rubygems/resolver/stats.rb
# frozen_string_literal: true

class Gem::Resolver::Stats
  def initialize
    @max_depth = 0
    @max_requirements = 0
    @requirements = 0
    @backtracking = 0
    @iterations = 0
  end

  def record_depth(stack)
    if stack.size > @max_depth
      @max_depth = stack.size
    end
  end

  def record_requirements(reqs)
    if reqs.size > @max_requirements
      @max_requirements = reqs.size
    end
  end

  def requirement!
    @requirements += 1
  end

  def backtracking!
    @backtracking += 1
  end

  def iteration!
    @iterations += 1
  end

  PATTERN = "%20s: %d\n"

  def display
    $stdout.puts "=== Resolver Statistics ==="
    $stdout.printf PATTERN, "Max Depth", @max_depth
    $stdout.printf PATTERN, "Total Requirements", @requirements
    $stdout.printf PATTERN, "Max Requirements", @max_requirements
    $stdout.printf PATTERN, "Backtracking #", @backtracking
    $stdout.printf PATTERN, "Iteration #", @iterations
  end
end