[Gambas-user] using try when access devices shadow the errors

[PICCORO McKAY Lenz]

ah yeah, must be send to list, so then:

> an exceptional product

so it's a product or a hobby? we need a product i try to make a product
from a product, i rmenber that someone said in old mail that does all of
this for hobby.. well sorry someone here confusing this excelent peice of
software with a product to make products!

> Tobias never said Catch shadows the error

i was my fault, i means that tobias said that try shadowns the error, seems
you make same mistake like me, do not read the complete threath with
caution...

so i not critizing the wiki, but that are not pointed in wiki, i try to
point that experts users will begin being novice users

now mails have lot of examples, recomendations, expert people, puff, etc
etc but in the begining a great silence was!



Lenz McKAY Gerardo (PICCORO)
http://qgqlochekone.blogspot.com

2018-08-02 13:50 GMT-04:00 Tony Morehen <tmorehen at ajm-software.com>:

> The wiki/documentation is perfectly clear about Try, Catch, and Finally.
> Further, Tobias never said Catch shadows the error!
>
> Try shadows the error, not Catch.  Catch is an error handler.  It behaves
> as an error handler should ie the error is handled, no need to raise an
> exception.
>
> Here's the standard error process:
>
> 1) Fill in the Error object
> 2) Raise an exception
>
> This is equivalent to On Error Goto 0
>
> Error process with a Try at the start of statement
>
> 1) Fill in Error object
> 2) Resume at the statement following the Try
>
> This is equivalent to:
>     On Error Resume Next
>     statement
>     On Error Goto 0
>
> Error process with a Catch block
>
> 1) Fill in the Error object
> 2) Resume at the statement following the Catch
>
> This is equivalent to:
>     On Error Goto Catch
>     statements
>     Return
>    Catch
>     error handling code
>     Return
>
> Error Process with Catch and Finally blocks
>
> 1) Fill in the Error object
> 2) Resume at the statement following the Catch
> 3) Execute the Finally code.  Finally code is executed even if there is no
> error.
>
> This is equivalent to:
>     On Error Goto Catch
>     statements
>     Goto Finally
>    Catch
>     error handling code
>     Goto Finally
>    Finally
>     code that is always executed
>
> A final word of caution  Criticizing the wiki as bluntly as you do,
> particularly when that criticism is unwarranted, is likely to irritate the
> people that provide us such an exceptional product.  Try framing this sort
> of criticism as a question, such as "Do we need to add something to the
> wiki to make this explicit and avoid confusing novices?"
>
>
>
>
>
> On 2018-08-02 12:04 PM, PICCORO McKAY Lenz wrote:
>
>> i cited that wiki does not say that error are shadowed by the catch! its
>> very important information for novices, taking in consideratino the
>> languaje barrier
>>
>> seems we need more vision here!
>>
>>
>> Lenz McKAY Gerardo (PICCORO)
>> http://qgqlochekone.blogspot.com
>>
>> 2018-08-02 11:56 GMT-04:00 Jussi Lahtinen <jussi.lahtinen at gmail.com
>> <mailto:jussi.lahtinen at gmail.com>>:
>>
>>
>>         well i comming from java and C and its common ofr us use
>>         try/cacht as duple
>>
>>
>>     Incorrect. There is no try/catch in C.
>>
>>
>>     Jussi
>>
>>
>>
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>>
>>
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