From acfbe9e1f22886d82c503cd0c20dc0ef3bf9f12a Mon Sep 17 00:00:00 2001 From: Patrick Beard Date: Fri, 6 Apr 2012 18:12:22 +0000 Subject: 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. llvm-svn: 154187 --- clang/lib/Sema/SemaDeclAttr.cpp | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'clang/lib/Sema/SemaDeclAttr.cpp') diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp index 081c93f8c20..77809e153f1 100644 --- a/clang/lib/Sema/SemaDeclAttr.cpp +++ b/clang/lib/Sema/SemaDeclAttr.cpp @@ -1593,6 +1593,22 @@ static void handleArcWeakrefUnavailableAttr(Sema &S, Decl *D, Attr.getRange(), S.Context)); } +static void handleObjCRootClassAttr(Sema &S, Decl *D, + const AttributeList &Attr) { + if (!isa(D)) { + S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); + return; + } + + unsigned NumArgs = Attr.getNumArgs(); + if (NumArgs > 0) { + S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; + return; + } + + D->addAttr(::new (S.Context) ObjCRootClassAttr(Attr.getRange(), S.Context)); +} + static void handleObjCRequiresPropertyDefsAttr(Sema &S, Decl *D, const AttributeList &Attr) { if (!isa(D)) { @@ -3658,6 +3674,9 @@ static void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, case AttributeList::AT_objc_arc_weak_reference_unavailable: handleArcWeakrefUnavailableAttr (S, D, Attr); break; + case AttributeList::AT_objc_root_class: + handleObjCRootClassAttr(S, D, Attr); + break; case AttributeList::AT_objc_requires_property_definitions: handleObjCRequiresPropertyDefsAttr (S, D, Attr); break; -- cgit v1.2.3