let Args = [StringArgument<"Label">];
}
-def BaseCheck : InheritableAttr {
- let Spellings = ["base_check"];
- let Subjects = [CXXRecord];
- let Namespaces = ["", "std"];
-}
-
def Blocks : InheritableAttr {
let Spellings = ["blocks"];
let Args = [EnumArgument<"Type", "BlockType", ["byref"], ["ByRef"]>];
let Spellings = ["gnu_inline"];
}
-def Hiding : InheritableAttr {
- let Spellings = ["hiding"];
- let Subjects = [Field, CXXMethod];
- let Namespaces = ["", "std"];
-}
-
def IBAction : InheritableAttr {
let Spellings = ["ibaction"];
}
let Spellings = ["NSOjbect"];
}
-def Override : InheritableAttr {
- let Spellings = ["override"];
- let Subjects = [CXXVirtualMethod];
- let Namespaces = ["", "std"];
-}
-
def Overloadable : Attr {
let Spellings = ["overloadable"];
}
AT_format_arg,
AT_global,
AT_gnu_inline,
- AT_hiding,
AT_host,
AT_launch_bounds,
AT_malloc,
AT_nothrow,
AT_nsobject,
AT_objc_exception,
- AT_override,
AT_cf_returns_not_retained, // Clang-specific.
AT_cf_returns_retained, // Clang-specific.
AT_ns_returns_not_retained, // Clang-specific.
switch(AttributeList::getKind(AttrName))
{
// No arguments
- case AttributeList::AT_base_check:
case AttributeList::AT_carries_dependency:
- case AttributeList::AT_hiding:
- case AttributeList::AT_noreturn:
- case AttributeList::AT_override: {
+ case AttributeList::AT_noreturn: {
if (Tok.is(tok::l_paren)) {
Diag(Tok.getLocation(), diag::err_cxx0x_attribute_forbids_arguments)
<< AttrName->getName();
.Case("__const", AT_const) // some GCC headers do contain this spelling
.Case("blocks", AT_blocks)
.Case("format", AT_format)
- .Case("hiding", AT_hiding)
.Case("malloc", AT_malloc)
.Case("packed", AT_packed)
.Case("unused", AT_unused)
.Case("iboutletcollection", AT_IBOutletCollection)
.Case("noreturn", AT_noreturn)
.Case("noinline", AT_noinline)
- .Case("override", AT_override)
.Case("sentinel", AT_sentinel)
.Case("NSObject", AT_nsobject)
.Case("dllimport", AT_dllimport)
}
}
-/// CheckClassMemberNameAttributes - Check for class member name checking
-/// attributes according to [dcl.attr.override]
-static void
-CheckClassMemberNameAttributes(Sema& SemaRef, const FunctionDecl *FD) {
- const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD);
- if (!MD || !MD->isVirtual())
- return;
-
- bool HasOverrideAttr = MD->hasAttr<OverrideAttr>();
- bool HasOverriddenMethods =
- MD->begin_overridden_methods() != MD->end_overridden_methods();
-
- /// C++ [dcl.attr.override]p2:
- /// If a virtual member function f is marked override and does not override
- /// a member function of a base class the program is ill-formed.
- if (HasOverrideAttr && !HasOverriddenMethods) {
- SemaRef.Diag(MD->getLocation(),
- diag::err_function_marked_override_not_overriding)
- << MD->getDeclName();
- return;
- }
-
- if (!MD->getParent()->hasAttr<BaseCheckAttr>())
- return;
-
- /// C++ [dcl.attr.override]p6:
- /// In a class definition marked base_check, if a virtual member function
- /// that is neither implicitly-declared nor a destructor overrides a
- /// member function of a base class and it is not marked override, the
- /// program is ill-formed.
- if (HasOverriddenMethods && !HasOverrideAttr && !MD->isImplicit() &&
- !isa<CXXDestructorDecl>(MD)) {
- llvm::SmallVector<const CXXMethodDecl*, 4>
- OverriddenMethods(MD->begin_overridden_methods(),
- MD->end_overridden_methods());
-
- SemaRef.Diag(MD->getLocation(),
- diag::err_function_overriding_without_override)
- << MD->getDeclName() << (unsigned)OverriddenMethods.size();
-
- for (unsigned I = 0; I != OverriddenMethods.size(); ++I)
- SemaRef.Diag(OverriddenMethods[I]->getLocation(),
- diag::note_overridden_virtual_function);
- }
-}
-
NamedDecl*
Sema::ActOnFunctionDeclarator(Scope* S, Declarator& D, DeclContext* DC,
QualType R, TypeSourceInfo *TInfo,
FunctionTemplate->setInvalidDecl();
return FunctionTemplate;
}
- CheckClassMemberNameAttributes(*this, NewFD);
}
MarkUnusedFileScopedDecl(NewFD);
}
}
-//===----------------------------------------------------------------------===//
-// C++0x member checking attributes
-//===----------------------------------------------------------------------===//
-
-static void HandleBaseCheckAttr(Decl *d, const AttributeList &Attr, Sema &S) {
- if (Attr.getNumArgs() != 0) {
- S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0;
- return;
- }
-
- if (!isa<CXXRecordDecl>(d)) {
- S.Diag(Attr.getLoc(),
- Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type
- : diag::warn_attribute_wrong_decl_type)
- << Attr.getName() << 9 /*class*/;
- return;
- }
-
- if (d->getAttr<BaseCheckAttr>()) {
- S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "base_check";
- return;
- }
-
- d->addAttr(::new (S.Context) BaseCheckAttr(Attr.getLoc(), S.Context));
-}
-
-static void HandleHidingAttr(Decl *d, const AttributeList &Attr, Sema &S) {
- if (Attr.getNumArgs() != 0) {
- S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0;
- return;
- }
-
- if (!isa<RecordDecl>(d->getDeclContext())) {
- // FIXME: It's not the type that's the problem
- S.Diag(Attr.getLoc(),
- Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type
- : diag::warn_attribute_wrong_decl_type)
- << Attr.getName() << 11 /*member*/;
- return;
- }
-
- // FIXME: Conform to C++0x redeclaration rules.
-
- if (d->getAttr<HidingAttr>()) {
- S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "hiding";
- return;
- }
-
- d->addAttr(::new (S.Context) HidingAttr(Attr.getLoc(), S.Context));
-}
-
-static void HandleOverrideAttr(Decl *d, const AttributeList &Attr, Sema &S) {
- if (Attr.getNumArgs() != 0) {
- S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0;
- return;
- }
-
- if (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual()) {
- // FIXME: It's not the type that's the problem
- S.Diag(Attr.getLoc(),
- Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type
- : diag::warn_attribute_wrong_decl_type)
- << Attr.getName() << 10 /*virtual method*/;
- return;
- }
-
- // FIXME: Conform to C++0x redeclaration rules.
-
- if (d->getAttr<OverrideAttr>()) {
- S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "override";
- return;
- }
-
- d->addAttr(::new (S.Context) OverrideAttr(Attr.getLoc(), S.Context));
-}
-
//===----------------------------------------------------------------------===//
// Checker-specific attribute handlers.
//===----------------------------------------------------------------------===//
case AttributeList::AT_analyzer_noreturn:
HandleAnalyzerNoReturnAttr (D, Attr, S); break;
case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break;
- case AttributeList::AT_base_check: HandleBaseCheckAttr (D, Attr, S); break;
case AttributeList::AT_carries_dependency:
HandleDependencyAttr (D, Attr, S); break;
case AttributeList::AT_common: HandleCommonAttr (D, Attr, S); break;
case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break;
case AttributeList::AT_global: HandleGlobalAttr (D, Attr, S); break;
case AttributeList::AT_gnu_inline: HandleGNUInlineAttr (D, Attr, S); break;
- case AttributeList::AT_hiding: HandleHidingAttr (D, Attr, S); break;
case AttributeList::AT_launch_bounds:
HandleLaunchBoundsAttr(D, Attr, S);
break;
case AttributeList::AT_naked: HandleNakedAttr (D, Attr, S); break;
case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break;
case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break;
- case AttributeList::AT_override: HandleOverrideAttr (D, Attr, S); break;
case AttributeList::AT_shared: HandleSharedAttr (D, Attr, S); break;
case AttributeList::AT_vecreturn: HandleVecReturnAttr (D, Attr, S); break;
+++ /dev/null
-// RUN: %clang_cc1 -std=c++0x -fsyntax-only -verify %s
-
-struct A {
- virtual void f();
- virtual void h();
-};
-
-struct B : A {
- [[override]] virtual void f();
- [[override]] void g(); // expected-error {{'override' attribute only applies to virtual method types}}
- [[override, override]] void h(); // expected-error {{'override' attribute cannot be repeated}}
-};
+++ /dev/null
-// RUN: %clang_cc1 -std=c++0x -fsyntax-only -verify %s
-
-namespace Override {
-
-namespace Test1 {
-
-struct A {
- virtual ~A();
-};
-
-struct [[base_check]] B : A {
- virtual ~B();
-};
-
-}
-
-namespace Test2 {
-
-struct A {
- virtual void f(); // expected-note {{overridden virtual function is here}}
-};
-
-struct [[base_check]] B : A {
- virtual void f(); // expected-error {{'f' overrides function without being marked 'override'}}
-};
-
-}
-
-namespace Test3 {
-
-struct A {
- virtual void f(); // expected-note {{overridden virtual function is here}}
-};
-
-struct B {
- virtual void f(); // expected-note {{overridden virtual function is here}}
-};
-
-struct [[base_check]] C : A, B {
- virtual void f(); // expected-error {{'f' overrides functions without being marked 'override'}}
-};
-
-}
-
-}
static_assert(alignof(align_multiple) == 8, "l's alignment is wrong");
static_assert(alignof(align_member) == 8, "quuux's alignment is wrong");
static_assert(sizeof(align_member) == 8, "quuux's size is wrong");
-
-int bc_fail [[base_check]]; // expected-error {{'base_check' attribute only applies to class types}}
-int hiding_fail [[hiding]]; // expected-error {{'hiding' attribute only applies to member types}}
-int override_fail [[override]]; // expected-error {{'override' attribute only applies to virtual method types}}
-
-struct base {
- virtual void function();
- virtual void other_function();
-};
-
-struct [[base_check, base_check]] bc : base { // expected-error {{'base_check' attribute cannot be repeated}}
-};
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