Re: [Exist-development] Pushing error message xquery line numbers into type comparisons

[Wolfgang M. <wol...@ex...>]

> This is just a simple example, see the attached diff, but I am
> wondering if there is value in, expanding on this concept and pushing
> xquery line context information into the datatype system for better
> errors.

It somehow doesn't feel right to add caller information to the
returned data values. Our approach so far has been to catch the thrown
exception on a higher level and add the line information there. See
class FunctionCall for an example. I think this concept could be
extended, though we won't be able to cover all cases where a type
error could occur.
But for your example, the if expression could certainly catch and
rethrow the exception.

Wolfgang