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Author SHA1 Message Date
John McCall 73fc0385de Attempt to not place ownership qualifiers on the result type 
of block declarators.  Document the rule we use.

Also document the rule that Doug implemented a few weeks ago
which drops ownership qualifiers on function result types.

rdar://10127067

llvm-svn: 176336
 2013-03-01 07:58:16 +00:00
Douglas Gregor cd78037ad1 In Objective-C ARC, completely ignore ownership qualifiers on the 
return type of a function by canonicalizing them away. They are
useless anyway, and conflict with our rules for template argument
deduction and __strong. Fixes <rdar://problem/12367446>.

llvm-svn: 172768
 2013-01-17 23:36:45 +00:00
Fariborz Jahanian 70b8bd8ad6 objective-C arc: don't issue no explicit ownership warning when 
__autoreleasing is explicitely added to param type.
// rdar://12280826

llvm-svn: 163738
 2012-09-12 20:34:47 +00:00
Fariborz Jahanian cd278ffa28 objective-C ARC: under -Wexplicit-ownership-type diagnose those 
method parameter types which are reference to an objective-C
pointer to object with no explicit ownership. // rdar://10907090

llvm-svn: 162959
 2012-08-30 23:56:02 +00:00
Patrick Beard acfbe9e1f2 Added a new attribute, objc_root_class, which informs the compiler when a root class is intentionally declared. 
The warning this inhibits, -Wobjc-root-class, is opt-in for now. However, all clang unit tests that would trigger
the warning have been updated to use -Wno-objc-root-class. <rdar://problem/7446698>

llvm-svn: 154187
 2012-04-06 18:12:22 +00:00
John McCall 5ece54ce3f Only complain about __strong __strong id, not __strong SomeStrongTypedef 
or __strong __typeof__(some.strong.thing).

llvm-svn: 150029
 2012-02-08 00:46:41 +00:00
Fariborz Jahanian d01ddd1d07 Improve text of a diagnostic. 
llvm-svn: 143353
 2011-10-31 17:27:06 +00:00
Fariborz Jahanian 244b187d22 objc-arc: desugar certain type and improve on diagnostic for 
ownership qualifier cast which won't work.
// rdar://10244607

llvm-svn: 143258
 2011-10-29 00:06:10 +00:00
Fariborz Jahanian 2fa646d596 objective-c arc: type-casting of an objc pointer to 
an rvalue retainable object type with life-time qualifier has no
effect and wil be diagnosed as error. // rdar://10244607

llvm-svn: 143219
 2011-10-28 20:06:07 +00:00