| 1 | //===- Availability.cpp --------------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // This file implements the Availability information for Decls. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #include "clang/AST/Availability.h" |
| 14 | #include "clang/AST/ASTContext.h" |
| 15 | #include "clang/AST/Attr.h" |
| 16 | #include "clang/AST/Decl.h" |
| 17 | #include "clang/Basic/TargetInfo.h" |
| 18 | |
| 19 | namespace clang { |
| 20 | |
| 21 | AvailabilityInfo AvailabilityInfo::createFromDecl(const Decl *Decl) { |
| 22 | ASTContext &Context = Decl->getASTContext(); |
| 23 | StringRef PlatformName = Context.getTargetInfo().getPlatformName(); |
| 24 | AvailabilityInfo Availability; |
| 25 | |
| 26 | // Collect availability attributes from all redeclarations. |
| 27 | for (const auto *RD : Decl->redecls()) { |
| 28 | for (const auto *A : RD->specific_attrs<AvailabilityAttr>()) { |
| 29 | if (A->getPlatform()->getName() != PlatformName) |
| 30 | continue; |
| 31 | Availability = AvailabilityInfo( |
| 32 | A->getPlatform()->getName(), A->getIntroduced(), A->getDeprecated(), |
| 33 | A->getObsoleted(), A->getUnavailable(), false, false); |
| 34 | break; |
| 35 | } |
| 36 | |
| 37 | if (const auto *A = RD->getAttr<UnavailableAttr>()) |
| 38 | if (!A->isImplicit()) |
| 39 | Availability.UnconditionallyUnavailable = true; |
| 40 | |
| 41 | if (const auto *A = RD->getAttr<DeprecatedAttr>()) |
| 42 | if (!A->isImplicit()) |
| 43 | Availability.UnconditionallyDeprecated = true; |
| 44 | } |
| 45 | return Availability; |
| 46 | } |
| 47 | |
| 48 | } // namespace clang |
| 49 |