1 #include "clang/ExtractAPI/AvailabilityInfo.h"
2 #include "clang/AST/ASTContext.h"
3 #include "clang/AST/Attr.h"
4 #include "clang/Basic/TargetInfo.h"
5 #include "llvm/ADT/STLExtras.h"
6 
7 using namespace clang::extractapi;
8 using namespace llvm;
9 
createFromDecl(const Decl * Decl)10 AvailabilityInfo AvailabilityInfo::createFromDecl(const Decl *Decl) {
11   ASTContext &Context = Decl->getASTContext();
12   StringRef PlatformName = Context.getTargetInfo().getPlatformName();
13   AvailabilityInfo Availability;
14 
15   // Collect availability attributes from all redeclarations.
16   for (const auto *RD : Decl->redecls()) {
17     for (const auto *A : RD->specific_attrs<AvailabilityAttr>()) {
18       if (A->getPlatform()->getName() != PlatformName)
19         continue;
20       Availability =
21           AvailabilityInfo(A->getPlatform()->getName(), A->getIntroduced(),
22                            A->getDeprecated(), A->getObsoleted(), false, false);
23       break;
24     }
25 
26     if (const auto *A = RD->getAttr<UnavailableAttr>())
27       if (!A->isImplicit())
28         Availability.UnconditionallyUnavailable = true;
29 
30     if (const auto *A = RD->getAttr<DeprecatedAttr>())
31       if (!A->isImplicit())
32         Availability.UnconditionallyDeprecated = true;
33   }
34   return Availability;
35 }
36