Re: [PATCH] Make language setting tests more robust

[Keith Seitz <keiths@redhat.com>]

Not to belabor the point, but...

On 02/01/2017 10:38 AM, Simon Marchi wrote:
>>
>> +# Set the language and handle possible warnings output by GDB if we
>> select a
>> +# language that differs from the current frame's language.
>> +#
>> +# The first argument is the language to set.
>> +# The second argument is an optional message to be output by the test.
>> +
>> +proc set_language { args } {
> 
> Instead of "args", it might be clearer to use a default argument for the
> second arg:
> 
>   proc set_language { language { message "" } } {
> 
> And lower:
> 
>   if { $message == "" } {
>     set message $command
>   }
> 
> Not sure about the exact TCL syntax, but I think you get the point :).
>

Yes, your syntax looks correct to me. [I was in the process of writing
exactly the same thing.]

Regarding gdb_test_no_output et al, this grokking of args needs to be
banished from the test suite. It adds unnecessary complexity. I would
encourage maintainers to request revision when such a thing is proposed
for the test suite.

As a heads up/reminder, we also have parse_args, which is suitable for
more advanced use cases, involving multiple optional arguments and
flags. mi_make_breakpoint is one such place that demonstrates the use of
this facility.

Keith