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zoi
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Zoi is a schema validation library for Elixir, designed to provide a simple and flexible way to define and validate data.
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lib/zoi/types/map.ex
defmodule Zoi.Types.Map do
@moduledoc false
use Zoi.Type.Def, fields: [:key_type, :value_type]
def new(key_type, value_type, opts) do
apply_type(Keyword.merge(opts, key_type: key_type, value_type: value_type))
end
def new(opts) do
new(Zoi.any(), Zoi.any(), opts)
end
defimpl Zoi.Type do
def parse(%Zoi.Types.Map{} = schema, input, _opts) when is_map(input) do
Enum.reduce(input, {%{}, []}, fn {key, value}, {input, errors} ->
with {:ok, key_parsed} <- Zoi.parse(schema.key_type, key),
{:ok, value_parsed} <- Zoi.parse(schema.value_type, value) do
{Map.put(input, key_parsed, value_parsed), errors}
else
{:error, err} ->
error = Enum.map(err, &Zoi.Error.prepend_path(&1, [key]))
{input, Zoi.Errors.merge(errors, error)}
end
end)
|> then(fn {parsed, errors} ->
if errors == [] do
{:ok, parsed}
else
{:error, errors, parsed}
end
end)
end
def parse(schema, _, _) do
{:error, Zoi.Error.invalid_type(:map, error: schema.meta.error)}
end
def type_spec(%Zoi.Types.Map{key_type: key_type, value_type: value_type}, opts) do
key_spec = Zoi.Type.type_spec(key_type, opts)
value_spec = Zoi.Type.type_spec(value_type, opts)
# If key and value are any type, we use map() (any map)
if key_type == Zoi.any() and value_type == Zoi.any() do
quote do
map()
end
else
quote do
%{optional(unquote(key_spec)) => unquote(value_spec)}
end
end
end
end
defimpl Inspect do
def inspect(type, opts) do
Zoi.Inspect.inspect_type(type, opts)
end
end
end