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//===- PDBSymbol.h - base class for user-facing symbol types -----*- C++-*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_DEBUGINFO_PDB_IPDBSYMBOL_H
#define LLVM_DEBUGINFO_PDB_IPDBSYMBOL_H
#include "ConcreteSymbolEnumerator.h"
#include "IPDBRawSymbol.h"
#include "PDBExtras.h"
#include "PDBTypes.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Casting.h"
#include <unordered_map>
#define FORWARD_SYMBOL_METHOD(MethodName) \
auto MethodName() const->decltype(RawSymbol->MethodName()) { \
return RawSymbol->MethodName(); \
}
namespace llvm {
class IPDBRawSymbol;
class raw_ostream;
#define DECLARE_PDB_SYMBOL_CONCRETE_TYPE(TagValue) \
static const PDB_SymType Tag = TagValue; \
static bool classof(const PDBSymbol *S) { return S->getSymTag() == Tag; }
/// PDBSymbol defines the base of the inheritance hierarchy for concrete symbol
/// types (e.g. functions, executables, vtables, etc). All concrete symbol
/// types inherit from PDBSymbol and expose the exact set of methods that are
/// valid for that particular symbol type, as described in the Microsoft
/// reference "Lexical and Class Hierarchy of Symbol Types":
/// https://msdn.microsoft.com/en-us/library/370hs6k4.aspx
class PDBSymbol {
protected:
PDBSymbol(const IPDBSession &PDBSession, std::unique_ptr<IPDBRawSymbol> Symbol);
public:
static std::unique_ptr<PDBSymbol>
create(const IPDBSession &PDBSession, std::unique_ptr<IPDBRawSymbol> Symbol);
virtual ~PDBSymbol();
/// Dumps the contents of a symbol a raw_ostream. By default this will just
/// call dump() on the underlying RawSymbol, which allows us to discover
/// unknown properties, but individual implementations of PDBSymbol may
/// override the behavior to only dump known fields.
virtual void dump(PDBSymDumper &Dumper) const = 0;
void defaultDump(raw_ostream &OS, int Indent) const;
PDB_SymType getSymTag() const;
template <typename T> std::unique_ptr<T> findOneChild() const {
auto Enumerator(findAllChildren<T>());
return Enumerator->getNext();
}
template <typename T>
std::unique_ptr<ConcreteSymbolEnumerator<T>> findAllChildren() const {
auto BaseIter = RawSymbol->findChildren(T::Tag);
return llvm::make_unique<ConcreteSymbolEnumerator<T>>(std::move(BaseIter));
}
std::unique_ptr<IPDBEnumSymbols> findAllChildren(PDB_SymType Type) const;
std::unique_ptr<IPDBEnumSymbols> findAllChildren() const;
std::unique_ptr<IPDBEnumSymbols>
findChildren(PDB_SymType Type, StringRef Name,
PDB_NameSearchFlags Flags) const;
std::unique_ptr<IPDBEnumSymbols> findChildrenByRVA(PDB_SymType Type,
StringRef Name,
PDB_NameSearchFlags Flags,
uint32_t RVA) const;
std::unique_ptr<IPDBEnumSymbols> findInlineFramesByRVA(uint32_t RVA) const;
const IPDBRawSymbol &getRawSymbol() const { return *RawSymbol; }
IPDBRawSymbol &getRawSymbol() { return *RawSymbol; }
const IPDBSession &getSession() const { return Session; }
std::unique_ptr<IPDBEnumSymbols> getChildStats(TagStats &Stats) const;
protected:
const IPDBSession &Session;
const std::unique_ptr<IPDBRawSymbol> RawSymbol;
};
} // namespace llvm
#endif
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