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3df1c115ec
Once the objects are constructed, they own the buffer. Passing a unique_ptr makes that clear. llvm-svn: 211595
113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
//===- MachOUniversal.h - Mach-O universal binaries -------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares Mach-O fat/universal binaries.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_OBJECT_MACHOUNIVERSAL_H
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#define LLVM_OBJECT_MACHOUNIVERSAL_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/Object/Binary.h"
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#include "llvm/Object/Archive.h"
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#include "llvm/Object/MachO.h"
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#include "llvm/Support/ErrorOr.h"
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#include "llvm/Support/MachO.h"
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namespace llvm {
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namespace object {
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class ObjectFile;
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class MachOUniversalBinary : public Binary {
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virtual void anchor();
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uint32_t NumberOfObjects;
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public:
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class ObjectForArch {
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const MachOUniversalBinary *Parent;
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/// \brief Index of object in the universal binary.
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uint32_t Index;
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/// \brief Descriptor of the object.
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MachO::fat_arch Header;
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public:
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ObjectForArch(const MachOUniversalBinary *Parent, uint32_t Index);
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void clear() {
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Parent = nullptr;
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Index = 0;
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}
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bool operator==(const ObjectForArch &Other) const {
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return (Parent == Other.Parent) && (Index == Other.Index);
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}
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ObjectForArch getNext() const { return ObjectForArch(Parent, Index + 1); }
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uint32_t getCPUType() const { return Header.cputype; }
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std::string getArchTypeName() const {
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return Triple::getArchTypeName(MachOObjectFile::getArch(Header.cputype));
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}
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ErrorOr<std::unique_ptr<ObjectFile>> getAsObjectFile() const;
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std::error_code getAsArchive(std::unique_ptr<Archive> &Result) const;
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};
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class object_iterator {
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ObjectForArch Obj;
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public:
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object_iterator(const ObjectForArch &Obj) : Obj(Obj) {}
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const ObjectForArch* operator->() const {
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return &Obj;
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}
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bool operator==(const object_iterator &Other) const {
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return Obj == Other.Obj;
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}
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bool operator!=(const object_iterator &Other) const {
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return !(*this == Other);
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}
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object_iterator& operator++() { // Preincrement
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Obj = Obj.getNext();
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return *this;
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}
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};
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MachOUniversalBinary(std::unique_ptr<MemoryBuffer> Source,
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std::error_code &ec);
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static ErrorOr<MachOUniversalBinary *>
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create(std::unique_ptr<MemoryBuffer> Source);
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object_iterator begin_objects() const {
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return ObjectForArch(this, 0);
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}
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object_iterator end_objects() const {
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return ObjectForArch(nullptr, 0);
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}
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uint32_t getNumberOfObjects() const { return NumberOfObjects; }
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// Cast methods.
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static inline bool classof(Binary const *V) {
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return V->isMachOUniversalBinary();
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}
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ErrorOr<std::unique_ptr<ObjectFile>>
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getObjectForArch(Triple::ArchType Arch) const;
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};
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}
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}
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#endif
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