Ash Custom Types Constraints Validations

[djcarpe]

Describe the bug
There are no compiler errors to misconfiguring the constraints fields keyword lists.

To Reproduce
Create a new type with an incorrect type keyword list.

defmodule MyApp.FooType do
  alias MyApp.BarResource
  use Ash.Type.NewType,
    subtype_of: :map,
    constraints: [
      fields: [
        bars: [type: :struct, instance_of: BarResource]
      ]
    ]
end

The correct keyword list would be as such:

defmodule MyApp.FooType do
  alias MyApp.BarResource
  use Ash.Type.NewType,
    subtype_of: :map,
    constraints: [
      fields: [
        bars: [type: :struct, constraints: [ instance_of: BarResource]]
      ]
    ]
end

Expected behavior
An error at compile time for unknown keys or incorrect keys.

Runtime

• Elixir version 1.18.1
• Erlang version 27.2
• OS macOS Sonoma 14.7
• Ash version 3.4.71
• any related extension versions
• ash_json_api 1.4.22

Additional context

Link to discord thread: https://discord.com/channels/711271361523351632/1254774851428814930/1352834543408775228