Re: Ada exception block does NOT work?

[Maciej Sobczak <no.spam@no.spam.com>]

Jeffrey R. Carter wrote:

> Ada has had exceptions, well integrated with the rest of the language, 
> since Ada 80. Ada's terminology is that exceptions are raised and 
> handled.

OK, but the question is not about terminology, really.

If you claim that exceptions were "patched" on to the C++ language that 
did not have them originally, then let's switch the context to other 
language that has no history issue like this.

I don't know the full history of Java, but I suppose that it had 
exceptions from the very beginning. If not, let's take C#. Whether those 
languages tried to mimic the syntax from C++ does not matter at all when 
it comes to discussion how well the mechanism is integrated into the 
language.

Why do you claim that Ada's exceptions are "better integrated into the 
language than in the languages that throw and catch them"?

Note that those other languages can throw regular objects as exceptions, 
thus enabling polymorphism when they are handled. One could say that 
*this* is the point of good integration and that Ada's exceptions are a 
conceptual patch that did not integrate with the rest of the object 
model, leading to two separate spaces of language entities instead of 
only one.

Note that I'm learning Ada and I'm likely to misunderstand things. But 
I'm curious about your way of reasoning and I want to better understand 
the differences between languages (and that's why I'm provoking you with 
the above inverted claim ;) ).


-- 
Maciej Sobczak : http://www.msobczak.com/
Programming    : http://www.msobczak.com/prog/