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zoi lib zoi types literal.ex
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lib/zoi/types/literal.ex

defmodule Zoi.Types.Literal do
@moduledoc false
use Zoi.Type.Def, fields: [:value]
def new(value, opts) do
opts = Keyword.merge([error: "invalid type: does not match literal"], opts)
apply_type(opts ++ [value: value])
end
defimpl Zoi.Type do
def parse(%Zoi.Types.Literal{value: value} = schema, input, _opts) do
if input === value do
{:ok, input}
else
{:error, schema.meta.error}
end
end
def type_spec(%Zoi.Types.Literal{value: value}, _opts) do
case value do
nil -> quote(do: nil)
true -> quote(do: true)
false -> quote(do: false)
_ when is_map(value) -> quote(do: map())
_ when is_list(value) -> quote(do: list())
value -> quote(do: unquote(value))
end
end
end
end