View Source Dreamy (dreamy v1.0.0)
Dreamy provides useful macros, functions, types & operators to make elixir even dreamier 😴
Summary
Functions
Operator for Enum.map
conditionally apply a function to the input value, otherwise letting it pass through unchanged
Macro for defining a constant attribute and function
Macro for adding a default catchall -> clause to case statements, that returns the input value
Macro for adding a default catchall true clause to cond statements, that returns the default value
Macro for adding a default catchall -> clause to case statements, that returns the default value
Functions
Operator for Enum.map
Examples
iex> use Dreamy
...> x = fn y -> y + 1 end
...> y = fn z -> z * 2 end
...> [1, 2]
...> >>> x
...> >>> y
[4, 6]
iex> use Dreamy
...> x = fn y -> y - 1 end
...> [5, 7]
...> >>> x
...> >>> (&div(&1, 2))
...> >>> x
[1, 2]@spec conditional_apply(v, false, function()) :: v when v: var
@spec conditional_apply(v, true, (v -> res)) :: res when v: var, res: var
conditionally apply a function to the input value, otherwise letting it pass through unchanged
Examples
iex> use Dreamy
...> x = fn y -> y - 1 end
...> 2
...> |> conditional_apply(true, x)
...> |> conditional_apply(false, x)
...> |> conditional_apply(true, x)
0
iex> use Dreamy
...> x = fn y -> y <> "!" end
...> "Hello"
...> |> conditional_apply(false, x)
...> |> conditional_apply(false, x)
...> |> conditional_apply(true, x)
...> |> conditional_apply(false, x)
"Hello!"Macro for defining a constant attribute and function
Examples
iex> use Dreamy
iex> const :example, "XYZ"
iex> @example
"XYZ"
iex> example()
"XYZ"Macro for adding a default catchall -> clause to case statements, that returns the input value
Examples
iex> use Dreamy
...> fallthrough {:error, "error"} do
...> {:ok, v} -> v
...> end
{:error, "error"}
iex> use Dreamy
...> fallthrough {:ok, "OK"} do
...> {:ok, "OK"} -> "OK"
...> end
"OK"Macro for adding a default catchall true clause to cond statements, that returns the default value
Examples
iex> use Dreamy
...> x = 5
...> or_else "Less than 10" do
...> x == 10 -> "10"
...> x > 10 -> "Greater than 10"
...> end
"Less than 10"
iex> use Dreamy
...> x = 11
...> or_else "Less than 10" do
...> x == 10 -> "10"
...> x > 10 -> "Greater than 10"
...> end
"Greater than 10"Macro for adding a default catchall -> clause to case statements, that returns the default value
Examples
iex> use Dreamy
...> otherwise nil, {:error, :not_found} do
...> {:ok, _} -> :ok
...> end
{:error, :not_found}
iex> use Dreamy
...> otherwise {:ok, nil}, {:error, :not_found} do
...> {:ok, _} -> :ok
...> end
:ok