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lib/sample.ex
defmodule Sample do
def hello(com) do
case com do
:throw -> throw(10)
:raise -> raise "hi"
:else -> 1000
end
rescue
e -> IO.inspect(e)
catch
e -> IO.inspect("------------ catched #{e}")
else
e -> IO.inspect(e)
after
IO.inspect("----------- after")
end
defmodule Calc do
def sum(a, b), do: a + b
def div(a, b), do: a / b
def to_int(str), do: String.to_integer(str)
def id(a), do: a
defmacro macro_sum(a, b) do
quote do
import Calc
sum(unquote(a), unquote(b))
end
end
end
def div(a, b) do
if b == 0 do
raise ArithmeticError
else
throw(Calc.div(a, b))
end
rescue
ArithmeticError -> Calc.id(:div_by_zero)
catch
n when is_number(n) -> IO.inspect(n)
else
n when is_number(n) -> IO.inspect(n)
after
IO.inspect("---- after")
end
end