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authorFariborz Jahanian <fjahanian@apple.com>2009-11-19 22:12:37 +0000
committerFariborz Jahanian <fjahanian@apple.com>2009-11-19 22:12:37 +0000
commita7cf23a72b0846fc5aacf3f38bb8c8f9e76784cf (patch)
treee01fa9aeac13c433fceb7efd292392d29434a886 /lib/Sema/SemaStmt.cpp
parente24568725c04acaa4b7ff3db283e6098ad947847 (diff)
Don't issue spurious diagnostic with Obj-C fast enumeration.
(radar 7409165). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89400 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Sema/SemaStmt.cpp')
-rw-r--r--lib/Sema/SemaStmt.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Sema/SemaStmt.cpp b/lib/Sema/SemaStmt.cpp
index d0f214fbd8..9960565877 100644
--- a/lib/Sema/SemaStmt.cpp
+++ b/lib/Sema/SemaStmt.cpp
@@ -59,6 +59,15 @@ Sema::OwningStmtResult Sema::ActOnDeclStmt(DeclGroupPtrTy dg,
return Owned(new (Context) DeclStmt(DG, StartLoc, EndLoc));
}
+void Sema::ActOnForEachDeclStmt(DeclGroupPtrTy dg) {
+ DeclGroupRef DG = dg.getAsVal<DeclGroupRef>();
+
+ // If we have an invalid decl, just return.
+ if (DG.isNull() || !DG.isSingleDecl()) return;
+ // suppress any potential 'unused variable' warning.
+ DG.getSingleDecl()->setUsed();
+}
+
void Sema::DiagnoseUnusedExprResult(const Stmt *S) {
const Expr *E = dyn_cast_or_null<Expr>(S);
if (!E)