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0.1.0
A JSON Schema Validator with complete support for the latest specifications.
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lib/jsv/helpers/enum_ext.ex
defmodule JSV.Helpers.EnumExt do
@type result :: {:ok, term} | {:error, term}
@type result(t) :: {:ok, t} | {:error, term}
import Kernel, except: [trunc: 1]
@moduledoc false
@doc false
@spec reduce_ok(Enumerable.t(), term, (term, term -> result)) :: result
def reduce_ok(enum, initial, f) when is_function(f, 2) do
Enum.reduce_while(enum, {:ok, initial}, fn item, {:ok, acc} ->
case f.(item, acc) do
{:ok, new_acc} -> {:cont, {:ok, new_acc}}
{:error, _} = err -> {:halt, err}
other -> raise ArgumentError, "bad return from reduce_ok callback: #{inspect(other)}"
end
end)
end
end