From: Fariborz Jahanian <fjahanian@apple.com>
Date: Wed, 12 Aug 2009 00:45:33 +0000 (+0000)
Subject: Warn on use of property dot syntax when unused.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6cc670e2eb6d5bae0e41a8ab8be4f02c4a0c72cf;p=clang

Warn on use of property dot syntax when unused.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78760 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 6aa971112d..ce8bb516c0 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -540,7 +540,6 @@ bool Expr::isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1,
     return false;
   }
   case ObjCMessageExprClass:
-  case ObjCKVCRefExprClass:   // Dot syntax for message send.
     return false;
   case StmtExprClass: {
     // Statement exprs don't logically have side effects themselves, but are
diff --git a/test/SemaObjC/unused.m b/test/SemaObjC/unused.m
index 44d31ab7ec..ce77cf1b5f 100644
--- a/test/SemaObjC/unused.m
+++ b/test/SemaObjC/unused.m
@@ -25,8 +25,7 @@ int test1(void) {
 @end
 
 void test2() {
-  // No unused warning: rdar://7126285
-  @"pointless example call for test purposes".length;
+  @"pointless example call for test purposes".length; // expected-warning {{expression result unused}}
 }