Issue #5866 has been updated by Nobuyoshi Nakada.

Status changed from Open to Feedback

It sounds like an application (or library) layer story.
Why does it need to be supported in the language layer?
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Feature #5866: ValidationError
https://bugs.ruby-lang.org/issues/5866

Author: Thomas Sawyer
Status: Feedback
Priority: Normal
Assignee: 
Category: 
Target version: 2.0.0


I've come across this from time to time, where some piece of complex data, often (but not always) loaded from a file, doesn't conform to some set of validation requirements. I've never been quite sure what type of error to throw if the data doesn't conform. It's not exactly an ArgumentError, it's more complex then that and not necessarily coming in via method arguments, nor is it exactly a TypeError since it's not necessarily anything to do with a specific class. So I find myself falling back to Runtime error and rolling my own, but thinking it would be nice if there were a general purpose `ValidationError` to raise or subclass in these cases.




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