Improve C++11 attribute parsing.
- General C++11 attributes were previously parsed and ignored. Now they are parsed and stored in AST.
- Add support to parse arguments of attributes that in 'gnu' namespace.
- Differentiate unknown attributes and known attributes that can't be applied to statements when emitting diagnostic.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165082 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaStmtAttr.cpp b/lib/Sema/SemaStmtAttr.cpp
index 3c15b7a..b268b45 100644
--- a/lib/Sema/SemaStmtAttr.cpp
+++ b/lib/Sema/SemaStmtAttr.cpp
@@ -48,11 +48,16 @@
static Attr *ProcessStmtAttribute(Sema &S, Stmt *St, const AttributeList &A,
SourceRange Range) {
switch (A.getKind()) {
+ case AttributeList::UnknownAttribute:
+ S.Diag(A.getLoc(), A.isDeclspecAttribute() ?
+ diag::warn_unhandled_ms_attribute_ignored :
+ diag::warn_unknown_attribute_ignored) << A.getName();
+ return 0;
case AttributeList::AT_FallThrough:
return handleFallThroughAttr(S, St, A, Range);
default:
- // if we're here, then we parsed an attribute, but didn't recognize it as a
- // statement attribute => it is declaration attribute
+ // if we're here, then we parsed a known attribute, but didn't recognize
+ // it as a statement attribute => it is declaration attribute
S.Diag(A.getRange().getBegin(), diag::warn_attribute_invalid_on_stmt)
<< A.getName()->getName() << St->getLocStart();
return 0;