Re: with-url

[Lars Ingebrigtsen]

Dmitry Gutov <address@hidden> writes:

> On 22.01.2017 00:23, Lars Ingebrigtsen wrote:
>
>>> You said "none of these should signal an error from the library" in
>>> response to my enumerations of different kinds of errors: 404,
>>> hostname resolution failure, connection timeout.
>>
>> Yes...  but you asked about how code would examine "the absence of a
>> connection timeout".  I don't know what you mean.
>
> That's exactly my point. You said that none of these should be errors,
> and then only replied how the callers will find out about the error
> status, not about the other kinds of errors.

"The absence of a connection timeout" is not an error.  A connection
timeout is an error, of course, and the caller can access that error
like all the other errors.

None of these errors are control-flow-level errors, but are expected
behaviour.  You don't signal Lisp-level errors for expected behaviour.
That's what Java programmers did in the 90s, and they've learned their
lessons.

Well, most of them.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no