ruby 从方法内部调用next for outer循环

qco9c6ql 于 2023-05-28 发布在 Ruby

关注(0)|答案(1)|浏览(104)

是否可以在外部循环的方法中调用next：

bot.rb

while Option.daemon_active?(daemon: "bot")
  .....
  Trade.market_order
  ....
end

trade.rb

class Trade
  def self.market_order
     ... complex code ...
     response = exchange.market_sell
     next if response["state"] == false # This fails. This should start new iteration of while in bot.rb
  end
end

有一个非常相似的问题，但它似乎不适合我：call next on ruby loop from external method

ruby

来源：https://stackoverflow.com/questions/29768878/call-next-for-outer-loop-from-within-a-method

1条答案

按热度按时间

w8ntj3qf1#

是的。您应该使用throw和catch。
bot.rb

while Option.daemon_active?(daemon: "bot")
  catch(:foo) do
    ...
    Trade.market_order
    ...
  end
end

trade.rb

class Trade
  def self.market_order
    ...
    response = exchange.market_sell
    throw :foo if response["state"] == false
  end
end

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ruby 从方法内部调用next for outer循环

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