Re: [PATCH] Make dwarf_expr_piece::pieces an std::vector

[Pedro Alves <palves at redhat dot com>]

On 09/14/2017 02:57 PM, Simon Marchi wrote:
> I initially left it as a pointer out of laziness, but I've changed it to
> a reference now.  I am pushing the patch with this and the const rvalue
> reference fixed.
> 
> I tried to add some constructors, but I didn't know how to design it
> nicely to support different types of value locations.  

Ah, yes, now that I look better, I see how the function is calling
private context functions.

> Maybe the best
> would be to add some factory functions that build various kinds of
> pieces, and make the constructor private.  Something like:
> 
> struct dwarf_expr_piece
> {
>   static dwarf_expr_piece make_memory_piece (CORE_ADDR addr, bool
> in_stack_memory)
>   static dwarf_expr_piece make_register_piece (int regno);
> 
> private:
>   dwarf_expr_piece ();
> };
> 
> I'll try that for a follow-up patch.

That might work.  I'm fine with the status quo too, btw.

Thanks,
Pedro Alves