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//===- RecordVisitor.cpp --------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// Implements the TAPI Record Visitor.
///
//===----------------------------------------------------------------------===//
#include "llvm/TextAPI/RecordVisitor.h"
using namespace llvm;
using namespace llvm::MachO;
RecordVisitor::~RecordVisitor() {}
void RecordVisitor::visitObjCInterface(const ObjCInterfaceRecord &) {}
void RecordVisitor::visitObjCCategory(const ObjCCategoryRecord &) {}
static bool shouldSkipRecord(const Record &R, const bool RecordUndefs) {
if (R.isExported())
return false;
// Skip non exported symbols unless for flat namespace libraries.
return !(RecordUndefs && R.isUndefined());
}
void SymbolConverter::visitGlobal(const GlobalRecord &GR) {
auto [SymName, SymKind, InterfaceType] = parseSymbol(GR.getName());
if (shouldSkipRecord(GR, RecordUndefs))
return;
Symbols->addGlobal(SymKind, SymName, GR.getFlags(), Targ);
if (InterfaceType == ObjCIFSymbolKind::None) {
Symbols->addGlobal(SymKind, SymName, GR.getFlags(), Targ);
return;
}
// It is impossible to hold a complete ObjCInterface with a single
// GlobalRecord, so continue to treat this symbol a generic global.
Symbols->addGlobal(EncodeKind::GlobalSymbol, GR.getName(), GR.getFlags(),
Targ);
}
void SymbolConverter::addIVars(const ArrayRef<ObjCIVarRecord *> IVars,
StringRef ContainerName) {
for (auto *IV : IVars) {
if (shouldSkipRecord(*IV, RecordUndefs))
continue;
std::string Name =
ObjCIVarRecord::createScopedName(ContainerName, IV->getName());
Symbols->addGlobal(EncodeKind::ObjectiveCInstanceVariable, Name,
IV->getFlags(), Targ);
}
}
void SymbolConverter::visitObjCInterface(const ObjCInterfaceRecord &ObjCR) {
if (!shouldSkipRecord(ObjCR, RecordUndefs)) {
if (ObjCR.isCompleteInterface()) {
Symbols->addGlobal(EncodeKind::ObjectiveCClass, ObjCR.getName(),
ObjCR.getFlags(), Targ);
if (ObjCR.hasExceptionAttribute())
Symbols->addGlobal(EncodeKind::ObjectiveCClassEHType, ObjCR.getName(),
ObjCR.getFlags(), Targ);
} else {
// Because there is not a complete interface, visit individual symbols
// instead.
if (ObjCR.isExportedSymbol(ObjCIFSymbolKind::EHType))
Symbols->addGlobal(EncodeKind::GlobalSymbol,
(ObjC2EHTypePrefix + ObjCR.getName()).str(),
ObjCR.getFlags(), Targ);
if (ObjCR.isExportedSymbol(ObjCIFSymbolKind::Class))
Symbols->addGlobal(EncodeKind::GlobalSymbol,
(ObjC2ClassNamePrefix + ObjCR.getName()).str(),
ObjCR.getFlags(), Targ);
if (ObjCR.isExportedSymbol(ObjCIFSymbolKind::MetaClass))
Symbols->addGlobal(EncodeKind::GlobalSymbol,
(ObjC2MetaClassNamePrefix + ObjCR.getName()).str(),
ObjCR.getFlags(), Targ);
}
}
addIVars(ObjCR.getObjCIVars(), ObjCR.getName());
for (const auto *Cat : ObjCR.getObjCCategories())
addIVars(Cat->getObjCIVars(), ObjCR.getName());
}
void SymbolConverter::visitObjCCategory(const ObjCCategoryRecord &Cat) {
addIVars(Cat.getObjCIVars(), Cat.getSuperClassName());
}
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