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It all compiles conditionally, so that if an explicit dependency exists on `comp` it will still be used
91 lines
1.8 KiB
Elixir
91 lines
1.8 KiB
Elixir
import Comp
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defcomparable left :: Any, right :: Any do
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case {left, right} do
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{_, _} when left == right ->
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Comp.eq()
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{%name{}, %name{}} ->
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left
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|> Map.from_struct()
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|> Comp.compare(Map.from_struct(right))
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{_, _} when left > right ->
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Comp.gt()
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{_, _} when left < right ->
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Comp.lt()
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end
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end
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defcomparable left :: List, right :: List do
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left
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|> Stream.zip(right)
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|> Enum.reduce_while(Comp.eq(), fn {lx, rx}, Comp.eq() ->
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lx
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|> Comp.compare(rx)
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|> case do
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res when res in [Comp.gt(), Comp.lt()] -> {:halt, res}
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Comp.eq() = res -> {:cont, res}
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end
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end)
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|> case do
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res when res in [Comp.gt(), Comp.lt()] ->
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res
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Comp.eq() ->
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left_length = length(left)
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right_length = length(right)
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cond do
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left_length > right_length -> Comp.gt()
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left_length < right_length -> Comp.lt()
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true -> Comp.eq()
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end
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end
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end
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defcomparable left :: Map, right :: Map do
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left_length = map_size(left)
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right_length = map_size(right)
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cond do
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left_length > right_length ->
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Comp.gt()
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left_length < right_length ->
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Comp.lt()
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true ->
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left
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|> Map.keys()
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|> Comp.compare(right |> Map.keys())
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|> case do
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res when res in [Comp.gt(), Comp.lt()] ->
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res
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Comp.eq() ->
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left
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|> Map.values()
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|> Comp.compare(right |> Map.values())
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end
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end
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end
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defcomparable left :: Tuple, right :: Tuple do
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left_length = tuple_size(left)
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right_length = tuple_size(right)
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cond do
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left_length > right_length ->
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Comp.gt()
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left_length < right_length ->
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Comp.lt()
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true ->
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left
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|> Tuple.to_list()
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|> Comp.compare(right |> Tuple.to_list())
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end
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end
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