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Convert a few methods to use ErrorOr.

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It used to be inconvenient to mix ErrorOr and UniquePtr, but with c++11
they work OK together.

llvm-svn: 211532
This commit is contained in:
Rafael Espindola 2014-06-23 20:41:02 +00:00
parent dd8e45c6d7
commit e0f3ded593
5 changed files with 19 additions and 21 deletions
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6
include/llvm/Object/MachOUniversal.h
View File

@ -57,7 +57,7 @@ public:
return Triple::getArchTypeName(MachOObjectFile::getArch(Header.cputype));
}
std::error_code getAsObjectFile(std::unique_ptr<ObjectFile> &Result) const;
ErrorOr<std::unique_ptr<ObjectFile>> getAsObjectFile() const;
std::error_code getAsArchive(std::unique_ptr<Archive> &Result) const;
};
@ -100,8 +100,8 @@ public:
return V->isMachOUniversalBinary();
}
std::error_code getObjectForArch(Triple::ArchType Arch,
std::unique_ptr<ObjectFile> &Result) const;
ErrorOr<std::unique_ptr<ObjectFile>>
getObjectForArch(Triple::ArchType Arch) const;
};
}

16
lib/Object/MachOUniversal.cpp
View File

@ -67,19 +67,15 @@ MachOUniversalBinary::ObjectForArch::ObjectForArch(
}
}
std::error_code MachOUniversalBinary::ObjectForArch::getAsObjectFile(
std::unique_ptr<ObjectFile> &Result) const {
ErrorOr<std::unique_ptr<ObjectFile>>
MachOUniversalBinary::ObjectForArch::getAsObjectFile() const {
if (Parent) {
StringRef ParentData = Parent->getData();
StringRef ObjectData = ParentData.substr(Header.offset, Header.size);
std::string ObjectName = Parent->getFileName().str();
MemoryBuffer *ObjBuffer = MemoryBuffer::getMemBuffer(
ObjectData, ObjectName, false);
ErrorOr<ObjectFile *> Obj = ObjectFile::createMachOObjectFile(ObjBuffer);
if (std::error_code EC = Obj.getError())
return EC;
Result.reset(Obj.get());
return object_error::success;
return ObjectFile::createMachOObjectFile(ObjBuffer);
}
return object_error::parse_failed;
}
@ -145,14 +141,14 @@ static bool getCTMForArch(Triple::ArchType Arch, MachO::CPUType &CTM) {
}
}
std::error_code MachOUniversalBinary::getObjectForArch(
Triple::ArchType Arch, std::unique_ptr<ObjectFile> &Result) const {
ErrorOr<std::unique_ptr<ObjectFile>>
MachOUniversalBinary::getObjectForArch(Triple::ArchType Arch) const {
MachO::CPUType CTM;
if (!getCTMForArch(Arch, CTM))
return object_error::arch_not_found;
for (object_iterator I = begin_objects(), E = end_objects(); I != E; ++I) {
if (I->getCPUType() == static_cast<uint32_t>(CTM))
return I->getAsObjectFile(Result);
return I->getAsObjectFile();
}
return object_error::arch_not_found;
}

5
tools/llvm-nm/llvm-nm.cpp
View File

@ -773,9 +773,10 @@ static void dumpSymbolNamesFromFile(std::string &Filename) {
for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
E = UB->end_objects();
I != E; ++I) {
std::unique_ptr<ObjectFile> Obj;
ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
std::unique_ptr<Archive> A;
if (!I->getAsObjectFile(Obj)) {
if (ObjOrErr) {
std::unique_ptr<ObjectFile> Obj = std::move(ObjOrErr.get());
if (moreThanOneArch)
outs() << "\n";
outs() << Obj->getFileName();

4
tools/llvm-size/llvm-size.cpp
View File

@ -466,9 +466,9 @@ static void PrintFileSectionSizes(StringRef file) {
for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
E = UB->end_objects();
I != E; ++I) {
std::unique_ptr<ObjectFile> UO;
ErrorOr<std::unique_ptr<ObjectFile>> UO = I->getAsObjectFile();
std::unique_ptr<Archive> UA;
if (!I->getAsObjectFile(UO)) {
if (UO) {
if (ObjectFile *o = dyn_cast<ObjectFile>(&*UO.get())) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (OutputFormat == sysv)

9
tools/llvm-symbolizer/LLVMSymbolize.cpp
View File

@ -349,10 +349,11 @@ LLVMSymbolizer::getObjectFileFromBinary(Binary *Bin, const std::string &ArchName
std::make_pair(UB, ArchName));
if (I != ObjectFileForArch.end())
return I->second;
std::unique_ptr<ObjectFile> ParsedObj;
if (!UB->getObjectForArch(Triple(ArchName).getArch(), ParsedObj)) {
Res = ParsedObj.get();
ParsedBinariesAndObjects.push_back(std::move(ParsedObj));
ErrorOr<std::unique_ptr<ObjectFile>> ParsedObj =
UB->getObjectForArch(Triple(ArchName).getArch());
if (ParsedObj) {
Res = ParsedObj.get().get();
ParsedBinariesAndObjects.push_back(std::move(ParsedObj.get()));
}
ObjectFileForArch[std::make_pair(UB, ArchName)] = Res;
} else if (Bin->isObject()) {