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Clarify the diagnostic for -Wnested-anon-types. 

llvm-svn: 174032
This commit is contained in:
Richard Smith 2013-01-31 03:11:12 +00:00
parent 9a6d4f3644
commit d202924db6
4 changed files with 11 additions and 10 deletions
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4
clang/include/clang/Basic/DiagnosticSemaKinds.td
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@ -5351,8 +5351,8 @@ def ext_anonymous_record_with_type : Extension<
"types declared in an anonymous %select{struct|union}0 are a Microsoft " "types declared in an anonymous %select{struct|union}0 are a Microsoft "
"extension">, InGroup<Microsoft>; "extension">, InGroup<Microsoft>;
def ext_anonymous_record_with_anonymous_type : Extension< def ext_anonymous_record_with_anonymous_type : Extension<
"nested anonymous types are an extension">, "anonymous types declared in an anonymous %select{struct|union}0 "
InGroup<DiagGroup<"nested-anon-types">>; "are an extension">, InGroup<DiagGroup<"nested-anon-types">>;
def err_anonymous_record_with_function : Error< def err_anonymous_record_with_function : Error<
"functions cannot be declared in an anonymous %select{struct|union}0">; "functions cannot be declared in an anonymous %select{struct|union}0">;
def err_anonymous_record_with_static : Error< def err_anonymous_record_with_static : Error<

3
clang/lib/Sema/SemaDecl.cpp
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@ -3242,7 +3242,8 @@ Decl *Sema::BuildAnonymousStructOrUnion(Scope *S, DeclSpec &DS,
// This is a popular extension, provided by Plan9, MSVC and GCC, but // This is a popular extension, provided by Plan9, MSVC and GCC, but
// not part of standard C++. // not part of standard C++.
Diag(MemRecord->getLocation(), Diag(MemRecord->getLocation(),
diag::ext_anonymous_record_with_anonymous_type); diag::ext_anonymous_record_with_anonymous_type)
<< (int)Record->isUnion();
} }
} else if (isa<AccessSpecDecl>(*Mem)) { } else if (isa<AccessSpecDecl>(*Mem)) {
// Any access specifier is fine. // Any access specifier is fine.

10
clang/test/SemaCXX/anonymous-union.cpp
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@ -9,7 +9,7 @@ struct X {
int i; int i;
float f; float f;
union { // expected-warning{{nested anonymous types are an extension}} union { // expected-warning{{anonymous types declared in an anonymous union are an extension}}
float f2; float f2;
mutable double d; mutable double d;
}; };
@ -101,7 +101,7 @@ void g() {
struct BadMembers { struct BadMembers {
union { union {
struct X { }; // expected-error {{types cannot be declared in an anonymous union}} struct X { }; // expected-error {{types cannot be declared in an anonymous union}}
struct { int x; int y; } y; // expected-warning{{nested anonymous types are an extension}} struct { int x; int y; } y; // expected-warning{{anonymous types declared in an anonymous union are an extension}}
void f(); // expected-error{{functions cannot be declared in an anonymous union}} void f(); // expected-error{{functions cannot be declared in an anonymous union}}
private: int x1; // expected-error{{anonymous union cannot contain a private data member}} private: int x1; // expected-error{{anonymous union cannot contain a private data member}}
@ -128,7 +128,7 @@ namespace test4 {
struct { // expected-warning{{anonymous structs are a GNU extension}} struct { // expected-warning{{anonymous structs are a GNU extension}}
int s0; // expected-note {{declared private here}} int s0; // expected-note {{declared private here}}
double s1; // expected-note {{declared private here}} double s1; // expected-note {{declared private here}}
union { // expected-warning{{nested anonymous type}} union { // expected-warning{{anonymous types declared in an anonymous struct are an extension}}
int su0; // expected-note {{declared private here}} int su0; // expected-note {{declared private here}}
double su1; // expected-note {{declared private here}} double su1; // expected-note {{declared private here}}
}; };
@ -136,7 +136,7 @@ namespace test4 {
union { union {
int u0; // expected-note {{declared private here}} int u0; // expected-note {{declared private here}}
double u1; // expected-note {{declared private here}} double u1; // expected-note {{declared private here}}
struct { // expected-warning{{anonymous structs are a GNU extension}} expected-warning{{nested anonymous type}} struct { // expected-warning{{anonymous structs are a GNU extension}} expected-warning{{anonymous types declared in an anonymous union are an extension}}
int us0; // expected-note {{declared private here}} int us0; // expected-note {{declared private here}}
double us1; // expected-note {{declared private here}} double us1; // expected-note {{declared private here}}
}; };
@ -187,7 +187,7 @@ namespace PR8326 {
private: private:
const union { // expected-warning{{anonymous union cannot be 'const'}} const union { // expected-warning{{anonymous union cannot be 'const'}}
struct { // expected-warning{{anonymous structs are a GNU extension}} expected-warning{{nested anonymous type}} struct { // expected-warning{{anonymous structs are a GNU extension}} expected-warning{{declared in an anonymous union}}
T x; T x;
T y; T y;
}; };

4
clang/test/SemaCXX/constant-expression-cxx11.cpp
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@ -1153,8 +1153,8 @@ namespace ConvertedConstantExpr {
namespace IndirectField { namespace IndirectField {
struct S { struct S {
struct { // expected-warning {{GNU extension}} struct { // expected-warning {{GNU extension}}
union { // expected-warning {{nested anonymous types are an extension}} union { // expected-warning {{declared in an anonymous struct}}
struct { // expected-warning {{GNU extension}} expected-warning {{nested anonymous types are an extension}} struct { // expected-warning {{GNU extension}} expected-warning {{declared in an anonymous union}}
int a; int a;
int b; int b;
}; };