Add back Parse/Sema support for attributes cf_returns_retained and
ns_returns_retained, but do not include the other ownership attributes
we previously had.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71308 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index a5365fc..919f28f 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -1544,6 +1544,44 @@
}
//===----------------------------------------------------------------------===//
+// Checker-specific attribute handlers.
+//===----------------------------------------------------------------------===//
+
+static void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &Attr,
+ Sema &S) {
+
+ if (!isa<ObjCMethodDecl>(d) && !isa<FunctionDecl>(d)) {
+ const char *name;
+
+ switch (Attr.getKind()) {
+ default:
+ assert(0 && "invalid ownership attribute");
+ return;
+ case AttributeList::AT_cf_returns_retained:
+ name = "cf_returns_retained"; break;
+ case AttributeList::AT_ns_returns_retained:
+ name = "ns_returns_retained"; break;
+ };
+
+ S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) <<
+ name << 3 /* function or method */;
+ return;
+ }
+
+ switch (Attr.getKind()) {
+ default:
+ assert(0 && "invalid ownership attribute");
+ return;
+ case AttributeList::AT_cf_returns_retained:
+ d->addAttr(::new (S.Context) CFReturnsRetainedAttr());
+ return;
+ case AttributeList::AT_ns_returns_retained:
+ d->addAttr(::new (S.Context) NSReturnsRetainedAttr());
+ return;
+ };
+}
+
+//===----------------------------------------------------------------------===//
// Top Level Sema Entry Points
//===----------------------------------------------------------------------===//
@@ -1579,6 +1617,12 @@
case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break;
case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break;
case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break;
+
+ // Checker-specific.
+ case AttributeList::AT_ns_returns_retained:
+ case AttributeList::AT_cf_returns_retained:
+ HandleNSReturnsRetainedAttr(D, Attr, S); break;
+
case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break;
case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break;
case AttributeList::AT_stdcall: HandleStdCallAttr (D, Attr, S); break;