Hint for discriminators in union for better error messages?
Hi, I had an issue similar to questionsDiscriminated union with union type discriminator gives wrong error messages.
I wanted to have better error messages in case of more complex discriminated unions, which internally aren't "detected" to be discriminated, thus falling back to an O(n) solution, which, in my case, is fine performance-wise, but not error message-wise.
My concrete use case is a dynamic font where the user can select a value in radio group, causing other fields depending on the chosen radio item to be shown. Multiple radio items can lead to the same fields being shown (thus, having discriminators like
The error message I got in the end was set to the union itself (with "sub error messages" also suggesting changing the discriminator). In the end, I want to "lock into" one union, thus showing the correct error messages on the fields inside the union branch that were wrong.
My "fix" for this was to add a
Would you consider adding something like
I wanted to have better error messages in case of more complex discriminated unions, which internally aren't "detected" to be discriminated, thus falling back to an O(n) solution, which, in my case, is fine performance-wise, but not error message-wise.
My concrete use case is a dynamic font where the user can select a value in radio group, causing other fields depending on the chosen radio item to be shown. Multiple radio items can lead to the same fields being shown (thus, having discriminators like
0|12|3The error message I got in the end was set to the union itself (with "sub error messages" also suggesting changing the discriminator). In the end, I want to "lock into" one union, thus showing the correct error messages on the fields inside the union branch that were wrong.
My "fix" for this was to add a
discriminatorHintWould you consider adding something like
discriminatorHint
