Return an ErrorOr<Binary *> from createBinary.

I did write a version returning ErrorOr<OwningPtr<Binary> >, but it is too
cumbersome to use without std::move. I will keep the patch locally and submit
when we switch to c++11.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199326 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 6 deletions

diff --git a/tools/llvm-nm/llvm-nm.cpp b/tools/llvm-nm/llvm-nm.cpp
index 6822c9dbd4..b5f6321f8b 100644
--- a/tools/llvm-nm/llvm-nm.cpp
+++ b/tools/llvm-nm/llvm-nm.cpp
@@ -580,9 +580,10 @@ static void DumpSymbolNamesFromFile(std::string &Filename) {
       delete Result;
     }
   } else if (magic == sys::fs::file_magic::archive) {
-    OwningPtr<Binary> arch;
-    if (error(object::createBinary(Buffer.take(), arch), Filename))
+    ErrorOr<Binary *> BinaryOrErr = object::createBinary(Buffer.take());
+    if (error(BinaryOrErr.getError(), Filename))
       return;
+    OwningPtr<Binary> arch(BinaryOrErr.get());
 
     if (object::Archive *a = dyn_cast<object::Archive>(arch.get())) {
       if (ArchiveMap) {
@@ -630,9 +631,10 @@ static void DumpSymbolNamesFromFile(std::string &Filename) {
       }
     }
   } else if (magic == sys::fs::file_magic::macho_universal_binary) {
-    OwningPtr<Binary> Bin;
-    if (error(object::createBinary(Buffer.take(), Bin), Filename))
+    ErrorOr<Binary *> BinaryOrErr = object::createBinary(Buffer.take());
+    if (error(BinaryOrErr.getError(), Filename))
       return;
+    OwningPtr<Binary> Bin(BinaryOrErr.get());
 
     object::MachOUniversalBinary *UB =
         cast<object::MachOUniversalBinary>(Bin.get());
@@ -647,9 +649,10 @@ static void DumpSymbolNamesFromFile(std::string &Filename) {
       }
     }
   } else if (magic.is_object()) {
-    OwningPtr<Binary> obj;
-    if (error(object::createBinary(Buffer.take(), obj), Filename))
+    ErrorOr<Binary *> BinaryOrErr = object::createBinary(Buffer.take());
+    if (error(BinaryOrErr.getError(), Filename))
       return;
+    OwningPtr<Binary> obj(BinaryOrErr.get());
     if (object::ObjectFile *o = dyn_cast<ObjectFile>(obj.get()))
       DumpSymbolNamesFromObject(o);
   } else {