Sure. This is to highlight a change introduced a few months ago:
Author: efriedma
Date: Tue Jun 18 22:41:37 2013 +0000
Introduce a new mangling for protocol-qualified ObjC types in C++. This
allows
to provide proper overloading, and also prevents mangling conflicts with
template arguments of protocol-qualified type.
This is a non-backward-compatible mangling change, but per discussion with
John, the benefits outweigh this cost.
https://llvm.org/svn/llvm-project/cfe/trunk@184250
I’ll mention it on the language extensions.
On Oct 14, 2013, at 8:57 PM, Nico Weber <[email protected]> wrote:
> Should this be documented in
> http://clang.llvm.org/docs/LanguageExtensions.html#objective-c-features ?
>
>
> On Mon, Oct 14, 2013 at 4:48 PM, Ted Kremenek <[email protected]> wrote:
> Author: kremenek
> Date: Mon Oct 14 18:48:27 2013
> New Revision: 192643
>
> URL: http://llvm.org/viewvc/llvm-project?rev=192643&view=rev
> Log:
> Add has_feature support for reflecting the presence of refined Objective-C
> ABI mangling for qualified id<...>. Fixes <rdar://problem/14799110>.
>
> Modified:
> cfe/trunk/lib/Lex/PPMacroExpansion.cpp
>
> Modified: cfe/trunk/lib/Lex/PPMacroExpansion.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/PPMacroExpansion.cpp?rev=192643&r1=192642&r2=192643&view=diff
> ==============================================================================
> --- cfe/trunk/lib/Lex/PPMacroExpansion.cpp (original)
> +++ cfe/trunk/lib/Lex/PPMacroExpansion.cpp Mon Oct 14 18:48:27 2013
> @@ -897,6 +897,7 @@ static bool HasFeature(const Preprocesso
> .Case("objc_modules", LangOpts.ObjC2 && LangOpts.Modules)
> .Case("objc_nonfragile_abi", LangOpts.ObjCRuntime.isNonFragile())
> .Case("objc_property_explicit_atomic", true) // Does clang
> support explicit "atomic" keyword?
> + .Case("objc_protocol_qualifier_mangling", true)
> .Case("objc_weak_class",
> LangOpts.ObjCRuntime.hasWeakClassImport())
> .Case("ownership_holds", true)
> .Case("ownership_returns", true)
>
>
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