Question about the ns_bridged attribute

[John McCall]

On Dec 19, 2013, at 7:13 AM, Aaron Ballman <aaron at aaronballman.com> wrote:
> The ns_bridged attribute was added in r140779:
> 
> https://llvm.org/viewvc/llvm-project?logsort=cvs&view=revision&sortby=log&revision=140779
> 
> This attribute creates an AST node, attaches it to a Decl, but no
> other part of the compiler makes use of that AST node. The commit
> message mentions that this might be interesting for tools to make use
> of, but I am wondering whether any tools actually make use of it. From
> what I could find on google, there doesn't appear to be much mention
> of what this attribute is used for (if it's used at all).
> 
> I'm trying to determine whether this attribute should continue to
> generate an AST node, or whether this was part of an unfinished
> feature and the attribute should be removed, or the feature finished.
> Either is perfectly fine with me.

Oops.  It’s dead code.  The intent was to lay the foundation for what we’re
doing now with objc_bridge, but, well, schedules shifted, and we apparently
forgot about having added it when we added objc_bridge later.

If you wouldn’t mind ripping it out yourself, that would be great; otherwise,
please file a bug, and somebody else will get around to it.

John.