Sema: Handle declspecs without declarators in records properly in C mode
We had two bugs:
- We wouldn't properly warn when a struct/union/enum was mentioned
inside of a record definition if no declarator was provided. We
should have mentioned that this declaration declares nothing.
- We didn't properly support Microsoft's extension where certain
declspecs without declarators would act as anonymous structs/unions.
* We completely ignored the case where such a declspec could be a
union.
* We didn't properly handle the case where a record was defined inside
another record:
struct X {
int a;
struct Y {
int b;
};
};
llvm-svn: 215347
diff --git a/clang/test/Sema/MicrosoftExtensions.c b/clang/test/Sema/MicrosoftExtensions.c
index 429dd94..f640120 100644
--- a/clang/test/Sema/MicrosoftExtensions.c
+++ b/clang/test/Sema/MicrosoftExtensions.c
@@ -39,9 +39,24 @@
NESTED1; // expected-warning {{anonymous structs are a Microsoft extension}}
};
+struct nested3 {
+ long d;
+ struct nested4 { // expected-warning {{anonymous structs are a Microsoft extension}}
+ long e;
+ };
+ union nested5 { // expected-warning {{anonymous unions are a Microsoft extension}}
+ long f;
+ };
+};
+
+typedef union nested6 {
+ long f;
+} NESTED6;
+
struct test {
int c;
struct nested2; // expected-warning {{anonymous structs are a Microsoft extension}}
+ NESTED6; // expected-warning {{anonymous unions are a Microsoft extension}}
};
void foo()