forked from OSchip/llvm-project
51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
#include "clang/ExtractAPI/AvailabilityInfo.h"
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#include "clang/AST/Attr.h"
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#include "llvm/ADT/STLExtras.h"
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using namespace clang;
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using namespace extractapi;
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AvailabilitySet::AvailabilitySet(const Decl *Decl) {
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// Collect availability attributes from all redeclrations.
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for (const auto *RD : Decl->redecls()) {
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if (const auto *A = RD->getAttr<UnavailableAttr>()) {
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if (!A->isImplicit()) {
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this->Availabilities.clear();
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UnconditionallyUnavailable = true;
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}
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}
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if (const auto *A = RD->getAttr<DeprecatedAttr>()) {
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if (!A->isImplicit()) {
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this->Availabilities.clear();
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UnconditionallyDeprecated = true;
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}
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}
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for (const auto *Attr : RD->specific_attrs<AvailabilityAttr>()) {
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StringRef Domain = Attr->getPlatform()->getName();
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auto *Availability =
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llvm::find_if(Availabilities, [Domain](const AvailabilityInfo &Info) {
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return Domain.equals(Info.Domain);
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});
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if (Availability != Availabilities.end()) {
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// Get the highest introduced version for all redeclarations.
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if (Availability->Introduced < Attr->getIntroduced())
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Availability->Introduced = Attr->getIntroduced();
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// Get the lowest deprecated version for all redeclarations.
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if (Availability->Deprecated > Attr->getDeprecated())
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Availability->Deprecated = Attr->getDeprecated();
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// Get the lowest obsoleted version for all redeclarations.
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if (Availability->Obsoleted > Attr->getObsoleted())
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Availability->Obsoleted = Attr->getObsoleted();
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} else {
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Availabilities.emplace_back(Domain, Attr->getIntroduced(),
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Attr->getDeprecated(),
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Attr->getObsoleted());
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}
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}
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}
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}
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