dtc: Simplify error handling for unparseable input

[David Gibson]

On Tue, Mar 25, 2008 at 05:10:07PM -0500, Scott Wood wrote:
> David Gibson wrote:
>> On Tue, Mar 25, 2008 at 09:36:19AM -0500, Scott Wood wrote:
>>> On Tue, Mar 25, 2008 at 12:28:05PM +1100, David Gibson wrote:
>>>> On Mon, Mar 24, 2008 at 12:36:41PM -0500, Scott Wood wrote:
>>>>> If you remove this, there'll be no way to indicate semantic errors 
>>>>> other
>>>>> than die() (the NULL approaches are no good, since they inhibit 
>>>>> recovery),
>>>>> which is suboptimal if the error is not immediately fatal.
>>>> But everything is immediately fatal.  When we have a *real* example of
>>>> something that's not, we can restore an error code.
>>> Failed binary includes are not immediately fatal.
>> And is there any advantage to having them not immediately fatal?
>
> It's generally nice to the user if you can report as many bugs as you can 
> rather than fail on the first one.

Oh.. and this patch doesn't actually preclude that.  We still have the
treesource_error variable and can report errors that way during the
parse.  The die() just comes at the end of dt_from_source(), instead
of in main().

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson