Added parsing/sema support for __attribute__ ((IBOutlet)), a clang-specific attribute that the static analyzer will use to recognize what ivars are IBOutlets.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53644 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index e6dac49..f8217b3 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -217,6 +217,22 @@
Attr.getName()->getName());
}
+static void HandleIBOutletAttr(Decl *d, const AttributeList &Attr, Sema &S) {
+ // check the attribute arguments.
+ if (Attr.getNumArgs() > 0) {
+ S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments,
+ std::string("0"));
+ return;
+ }
+
+ // The IBOutlet attribute only applies to instance variables of Objective-C
+ // classes.
+ if (ObjCIvarDecl *ID = dyn_cast<ObjCIvarDecl>(d))
+ ID->addAttr(new IBOutletAttr());
+ else
+ S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet_non_ivar);
+}
+
static void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) {
// check the attribute arguments.
if (Attr.getNumArgs() != 1) {
@@ -746,6 +762,7 @@
case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break;
case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break;
case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break;
+ case AttributeList::AT_IBOutlet: HandleIBOutletAttr (D, Attr, S); break;
case AttributeList::AT_transparent_union:
HandleTransparentUnionAttr(D, Attr, S);
break;