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added typespecs to engine #36

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merged 3 commits into from
Dec 16, 2019
Merged

added typespecs to engine #36

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8de476a
added typespecs to engine
Ziinc Dec 11, 2019
f3dd271
added typespecs for start_spider and stop_spider
Ziinc Dec 11, 2019
fb24879
fixed result of start_spider and stop_spider
Ziinc Dec 11, 2019
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11 changes: 11 additions & 0 deletions lib/crawly/engine.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -8,16 +8,26 @@ defmodule Crawly.Engine do

use GenServer

@type t :: %__MODULE__{started_spiders: started_spiders()}
@type started_spiders() :: %{optional(module()) => identifier()}

defstruct started_spiders: %{}

@spec start_spider(module()) ::
:ok
| {:error, :spider_already_started}
| {:error, :atom}
def start_spider(spider_name) do
GenServer.call(__MODULE__, {:start_spider, spider_name})
end

@spec stop_spider(module()) ::
:ok | {:error, :spider_not_running}
def stop_spider(spider_name) do
GenServer.call(__MODULE__, {:stop_spider, spider_name})
end

@spec running_spiders() :: started_spiders()
def running_spiders() do
GenServer.call(__MODULE__, :running_spiders)
end
Expand All @@ -26,6 +36,7 @@ defmodule Crawly.Engine do
GenServer.start_link(__MODULE__, [], name: __MODULE__)
end

@spec init(any) :: {:ok, __MODULE__.t()}
def init(_args) do
{:ok, %Crawly.Engine{}}
end
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