result v1.7.2

Result.Calc (result v1.7.2)

Result calculations

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Functions

product(list)

Calculate product of Results

r_and(arg1, arg2)

Calculate the AND of two results

r_or(arg1, arg2)

Calculate the OR of two results

sum(list)

Calculate sum of Results

Link to this section Functions

Link to this function

product(list)

Specs

product([Result.t(any(), any())]) :: Result.t([...], [...])

Calculate product of Results

product :: List (Result e a) -> Result (List e) (List a)

Examples 

iex> data = [{:ok, 1}, {:ok, 2}, {:ok, 3}]
iex> Result.Calc.product(data)
{:ok, [1, 2, 3]}

iex> data = [{:error, 1}, {:ok, 2}, {:error, 3}]
iex> Result.Calc.product(data)
{:error, [1, 3]}

iex> data = [{:error, 1}]
iex> Result.Calc.product(data)
{:error, [1]}

iex> data = []
iex> Result.Calc.product(data)
{:ok, []}
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r_and(arg1, arg2)

Specs

r_and(Result.t(any(), any()), Result.t(any(), any())) :: Result.t([...], [...])

Calculate the AND of two results

r_and :: Result e1 a -> Result e2 b -> Result [e1, e2] [a, b]

Examples 

iex> Result.Calc.r_and({:ok, 1}, {:ok, 2})
{:ok, [1, 2]}

iex> Result.Calc.r_and({:ok, 1}, {:error, 2})
{:error, [2]}

iex> Result.Calc.r_and({:error, 1}, {:ok, 2})
{:error, [1]}

iex> Result.Calc.r_and({:error, 1}, {:error, 2})
{:error, [1, 2]}
Link to this function

r_or(arg1, arg2)

Specs

r_or(Result.t(any(), any()), Result.t(any(), any())) :: Result.t([...], [...])

Calculate the OR of two results

r_or :: Result e1 a -> Result e2 b -> Result [e1, e2] [a, b]

Examples 

iex> Result.Calc.r_or({:ok, 1}, {:ok, 2})
{:ok, [1, 2]}

iex> Result.Calc.r_or({:ok, 1}, {:error, 2})
{:ok, [1]}

iex> Result.Calc.r_or({:error, 1}, {:ok, 2})
{:ok, [2]}

iex> Result.Calc.r_or({:error, 1}, {:error, 2})
{:error, [1, 2]}
Link to this function

sum(list)

Specs

sum([Result.t(any(), any())]) :: Result.t([...], [...])

Calculate sum of Results

sum :: List (Result e a) -> Result (List e) (List a)

Examples 

iex> data = [{:ok, 1}, {:ok, 2}, {:ok, 3}]
iex> Result.Calc.sum(data)
{:ok, [1, 2, 3]}

iex> data = [{:error, 1}, {:ok, 2}, {:error, 3}]
iex> Result.Calc.sum(data)
{:ok, [2]}

iex> data = [{:error, 1}, {:error, 2}, {:error, 3}]
iex> Result.Calc.sum(data)
{:error, [1, 2, 3]}

iex> data = [{:error, 1}]
iex> Result.Calc.sum(data)
{:error, [1]}

iex> data = []
iex> Result.Calc.sum(data)
{:error, []}