commit 0b92fcb1353d2d8b31b6c485e6caa14568aca43b
author John McCall <rjmccall@apple.com> Wed Jun 20 21:58:02 2012 +0000
committer John McCall <rjmccall@apple.com> Wed Jun 20 21:58:02 2012 +0000
tree 3026711a737a0db3164592f467792fbb4a4aea01
parent a6366f5c7e92466ebad0042afa55c2e5952ebe61

Introduce ObjCRuntime::hasWeakClassImport() and use it in the appropriate
places.  I've turned this off for the GNU runtimes --- I don't know if
they support weak class import, but it's easy enough for them to opt in.

Also tweak a comment per review by Jordan.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158860 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Lex/PPMacroExpansion.cpp

diff --git a/lib/Lex/PPMacroExpansion.cpp b/lib/Lex/PPMacroExpansion.cpp
index 826fa03..a533786 100644
--- a/lib/Lex/PPMacroExpansion.cpp
+++ b/lib/Lex/PPMacroExpansion.cpp
@@ -644,7 +644,7 @@
            .Case("objc_instancetype", LangOpts.ObjC2)
            .Case("objc_modules", LangOpts.ObjC2 && LangOpts.Modules)
            .Case("objc_nonfragile_abi", LangOpts.ObjCRuntime.isNonFragile())
-           .Case("objc_weak_class", LangOpts.ObjCRuntime.isNonFragile())
+           .Case("objc_weak_class", LangOpts.ObjCRuntime.hasWeakClassImport())
            .Case("ownership_holds", true)
            .Case("ownership_returns", true)
            .Case("ownership_takes", true)