Better error handling

[DawidWetzler]

Hello there,

during the hands-on work in today's workshop I came across a question regarding the possibility to change the error messages of the decorators.

Why?

• messages can be translated
• error messages can be displayed directly
• no extra handling within methods (e.g. try catch)

Imagine following scenario
@attr(number({min: 0, max: 5}), {reflective: false}) accessor value = 0;

Whenever value becomes > 5 it produces always the same exception:

RangeError: 6 is out of range [0, 5]

That's fine, but... it would be much better to have a way to set your own messages and/or to be able to treat them individually.

Example:

Number can't be higher than 5
Number can't be lower than 0