An error for when a casting function does not return the correct data.

All casting functions get wrapped in a rescue to catch any unexpected exceptions. This lets us add more useful information about where the error occurred that the stack trace cannot provide - mainly which field failed the casting.

We then raise using the original stacktrace and printing the captured error message.

Matching on Specific Exceptions

If a user wishes to capture specific exceptions as part of casting they may do so by matching on the :wrapped_error field. For example:

try do
  DataSchema.to_struct(my_input, MySchema)
rescue
  %DataSchema.CastFunctionError{wrapped_error: %RuntimeError{}} ->
    Logger.error("Expected Runtime Error")
  error ->
    reraise error, __STACKTRACE__
end