On Wed, May 24, 2017 at 2:48 AM, Jakub Jelinek <ja...@redhat.com> wrote: > On Tue, May 23, 2017 at 09:45:10PM -0400, Jason Merrill wrote: >> Someone on IRC complained that there was no way to suppress -Wunused >> on structured bindings. It seemed to me that the way the feature >> works, we shouldn't warn about the bindings individually; users need >> to give each of the subobjects a name even if they're only interested >> in using one of them. >> >> So this patch switches to tracking whether the underlying aggregate >> object as a whole is used; using one of the bindings will avoid any >> warning. >> >> This doesn't apply to tuple structured bindings, since in that case >> the bindings are actual variables rather than aliases to subobjects. > > So, shall we have even for the tuple structured bindings somewhere (in > lang_decl, such as adding struct lang_decl_decomp that would include > lang_decl_min?) the tree for the underlying artificial var decl?
That would make sense. Jason
