[RFA] C++-ify parser_state

[Simon Marchi]

On 2017-11-29 22:29, Tom Tromey wrote:
>>>>>> "Simon" == Simon Marchi <simon.marchi@ericsson.com> writes:
> 
>>> +  /* Ensure that we don't free it in the destructor.  */
>>> +  expout = nullptr;
>>> +  return result;
> 
> Simon> If expout was an expression_up, we could just std::move it here, 
> and
> Simon> wouldn't need an explicit destructor.
> 
> I thought that looked somewhat difficult due to the use of xrealloc 
> when
> growing the expression.
> 
> Really, of course, the whole expression structure needs to be redone.
> That's a big task though.

Agreed.

>>> -  lang->la_post_parser (&ps.expout, void_context_p);
>>> +  lang->la_post_parser (&result, void_context_p);
> 
> Simon> Passing a pointer or reference to the unique_ptr would allow
> Simon> the implementations of la_post_parser to modify it directly,
> Simon> and avoid the .release ().release ().
> 
> I'll look into it.
> The realloc thing may be an issue here as well.

I think this should be enough (the commit on top):

https://github.com/simark/binutils-gdb/commits/parser_state

Simon