How to validate Enums about xtypejs HOT 8 CLOSED

Are your enums simple strings or implemented as an actual "type"? Do you have some sample code to illustrate? If your enums are implemented as just strings, then they wouldn't appear as a proper type other than the "string" type.

xtypejs supports Instance Types, which would allow you to validate your enum, as long as it's implemented as a proper type (for instance, a WeekDay type representing the days of the week).

If you can provide some sample code of your current implementation, I could try to provide some code examples of an Instance Type based solution.

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We have both instance types and string types.
The instance types are obviously supported as you mentioned. My request was for string types:

var STATES = {
  ACCEPTED: 'ACCEPTED',
  REJECTED: 'REJECTED'
};

var objectToBeValidated = {
  state: STATES.ACCEPTED
};

Now I want to do something like:

xtypejs.isEnum(objectToBeValidated.state, STATES)

I am not sure how this would work with .type since it really is a string as you pointed out.

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Can registerTypes handle this? It looks close, but you'd probably need for it to accept a custom function that can test for whether an arbitrary thing passed in meets the criteria for the new type.

Also, you would probably need to allocate a higher-number space for custom-type ID numbers to live in.

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A registerTypes approach would have to be implemented in a way that keeps the new type completely compatible with any other built-in or previously registered types, which might be possible. Definitely worth exploring ..will look into it.

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After exploring the registerTypes approach to this, I'm going to go ahead and implement it, after which you can give it a try for your use case and provide feedback based on that.

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Woohoo. Thanks for the quick turnaround. Looking forward to using this.

On Thu, Jul 2, 2015, 4:45 PM lucono [email protected] wrote:

After exploring the registerTypes approach to this, I'm going to go ahead
and implement it, after which you can give it a try for your use case and
provide feedback based on that.

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#1 (comment).

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Created #2 for the implementation of the custom validation feature.

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Regarding enums:
xtypejs supports Instance Types, which are able to validate Enums implemented as actual enum types. More in this comment.

Regarding arbitrary custom validation:
This would support arbitrary string and/or any other type of arbitrary validation logic, completely integrated and compatible with all other xtypejs custom and non-custom (built-in) types.

See: Arbitrary Custom Validation Support (issue #2) - available in next release of xtypejs.

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