Vendor import of clang trunk r132879:vendor/clang/clang-r132879

http://llvm.org/svn/llvm-project/cfe/trunk@132879

1 files changed, 31 insertions, 0 deletions

diff --git a/test/Sema/parentheses.cpp b/test/Sema/parentheses.cpp
new file mode 100644
index 000000000000..a25f2a0ce7b8
--- /dev/null
+++ b/test/Sema/parentheses.cpp
@@ -0,0 +1,31 @@
+// RUN: %clang_cc1 -Wparentheses -fsyntax-only -verify %s
+// RUN: %clang_cc1 -Wparentheses -fixit %s -o - | %clang_cc1 -Wparentheses -Werror -
+
+bool someConditionFunc();
+
+void conditional_op(int x, int y, bool b) {
+  (void)(x + someConditionFunc() ? 1 : 2); // expected-warning {{?: has lower precedence than +}} \
+                                           // expected-note {{place parentheses around the ?: expression to evaluate it first}} \
+                                           // expected-note {{place parentheses around the + expression to silence this warning}}
+
+  (void)(x - b ? 1 : 2); // expected-warning {{?: has lower precedence than -}} \
+                         // expected-note {{place parentheses around the ?: expression to evaluate it first}} \
+                         // expected-note {{place parentheses around the - expression to silence this warning}}
+
+  (void)(x * (x == y) ? 1 : 2); // expected-warning {{?: has lower precedence than *}} \
+                                // expected-note {{place parentheses around the ?: expression to evaluate it first}} \
+                                // expected-note {{place parentheses around the * expression to silence this warning}}
+}
+
+class Stream {
+public:
+  operator int();
+  Stream &operator<<(int);
+  Stream &operator<<(const char*);
+};
+
+void f(Stream& s, bool b) {
+  (void)(s << b ? "foo" : "bar"); // expected-warning {{?: has lower precedence than <<}} \
+                                  // expected-note {{place parentheses around the ?: expression to evaluate it first}} \
+                                  // expected-note {{place parentheses around the << expression to silence this warning}}
+}