static void HandleDLLImportAttr(Decl *D, const AttributeList &Attr, Sema &S) {
// Attribute can be applied only to functions or variables.
FunctionDecl *FD = dyn_cast<FunctionDecl>(D);
if (!FD && !isa<VarDecl>(D)) {
// Apparently Visual C++ thinks it is okay to not emit a warning
// in this case, so only emit a warning when -fms-extensions is not
// specified.
if (!S.getLangOpts().MicrosoftExt)
S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type)
<< Attr.getName() << 2 /*variable and function*/;
return;
}
// Currently, the dllimport attribute is ignored for inlined functions.
// Warning is emitted.
if (FD && FD->isInlineSpecified()) {
S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName();
return;
}
unsigned Index = Attr.getAttributeSpellingListIndex();
DLLImportAttr *NewAttr = S.mergeDLLImportAttr(D, Attr.getRange(), Index);
if (NewAttr)
D->addAttr(NewAttr);
}
static void HandleDLLExportAttr(Decl *D, const AttributeList &Attr, Sema &S) {
// check the attribute arguments.
if (Attr.getNumArgs() != 0) {
S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0;
return;
}
// Attribute can be applied only to functions or variables.
FunctionDecl *FD = dyn_cast<FunctionDecl>(D);
if (!FD && !isa<VarDecl>(D)) {
S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type)
<< Attr.getName() << 2 /*variable and function*/;
return;
}
// Currently, the dllexport attribute is ignored for inlined functions, unless
// the -fkeep-inline-functions flag has been used. Warning is emitted;
if (FD && FD->isInlineSpecified()) {
// FIXME: ... unless the -fkeep-inline-functions flag has been used.
S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllexport";
return;
}
unsigned Index = Attr.getAttributeSpellingListIndex();
DLLExportAttr *NewAttr = S.mergeDLLExportAttr(D, Attr.getRange(), Index);
if (NewAttr)
D->addAttr(NewAttr);
}
static void HandleX86ForceAlignArgPointerAttr(Decl *D,
const AttributeList& Attr,
Sema &S) {
// Check the attribute arguments.
if (Attr.getNumArgs() != 0) {
S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0;
return;
}
// If we try to apply it to a function pointer, don't warn, but don't
// do anything, either. It doesn't matter anyway, because there's nothing
// special about calling a force_align_arg_pointer function.
ValueDecl *VD = dyn_cast<ValueDecl>(D);
if (VD && VD->getType()->isFunctionPointerType())
return;
// Also don't warn on function pointer typedefs.
TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D);
if (TD && (TD->getUnderlyingType()->isFunctionPointerType() ||
TD->getUnderlyingType()->isFunctionType()))
return;
// Attribute can only be applied to function types.
if (!isa<FunctionDecl>(D)) {
S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type)
<< Attr.getName() << /* function */0;
return;
}
D->addAttr(::new (S.Context) X86ForceAlignArgPointerAttr(Attr.getRange(),
S.Context));
}
static void HandleDLLExportAttr(Decl *D, const AttributeList &Attr, Sema &S) {
// Currently, the dllexport attribute is ignored for inlined functions, unless
// the -fkeep-inline-functions flag has been used. Warning is emitted;
if (isa<FunctionDecl>(D) && cast<FunctionDecl>(D)->isInlineSpecified()) {
// FIXME: ... unless the -fkeep-inline-functions flag has been used.
S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName();
return;
}
unsigned Index = Attr.getAttributeSpellingListIndex();
DLLExportAttr *NewAttr = S.mergeDLLExportAttr(D, Attr.getRange(), Index);
if (NewAttr)
D->addAttr(NewAttr);
}
static void HandleMips16Attr(Decl *D, const AttributeList &Attr, Sema &S) {
// check the attribute arguments.
if (Attr.hasParameterOrArguments()) {
S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0;
return;
}
// Attribute can only be applied to function types.
if (!isa<FunctionDecl>(D)) {
S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type)
<< Attr.getName() << /* function */0;
return;
}
D->addAttr(::new (S.Context) Mips16Attr(Attr.getRange(), S.Context,
Attr.getAttributeSpellingListIndex()));
}
