Finish pushing blocks attribute through the clang attribute machinery.
Also added a couple simple tests from the "gcc.apple" test suite.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56309 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index b5737d8..c014e35 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -509,6 +509,34 @@
d->addAttr(new ObjCGCAttr(type));
}
+static void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) {
+ if (!Attr.getParameterName()) {
+ S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string,
+ "blocks", std::string("1"));
+ return;
+ }
+
+ if (Attr.getNumArgs() != 0) {
+ S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments,
+ std::string("1"));
+ return;
+ }
+ const char *TypeStr = Attr.getParameterName()->getName();
+ unsigned TypeLen = Attr.getParameterName()->getLength();
+
+ BlocksAttr::BlocksAttrTypes type;
+
+ if (TypeLen == 5 && !memcmp(TypeStr, "byref", 5))
+ type = BlocksAttr::ByRef;
+ else {
+ S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported,
+ "blocks", TypeStr);
+ return;
+ }
+
+ d->addAttr(new BlocksAttr(type));
+}
+
static void HandleWeakAttr(Decl *d, const AttributeList &Attr, Sema &S) {
// check the attribute arguments.
if (Attr.getNumArgs() != 0) {
@@ -968,6 +996,7 @@
HandleTransparentUnionAttr(D, Attr, S);
break;
case AttributeList::AT_objc_gc: HandleObjCGCAttr (D, Attr, S); break;
+ case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break;
default:
#if 0
// TODO: when we have the full set of attributes, warn about unknown ones.