[Object] Revert r275316, Archive::child_iterator changes, while I update lld.

Should fix the bots broken by r275316.

llvm-svn: 275353

1 files changed, 39 insertions, 35 deletions

diff --git a/llvm/tools/llvm-nm/llvm-nm.cpp b/llvm/tools/llvm-nm/llvm-nm.cpp
index 9b2f5220bad..2cd0ede4a53 100644
--- a/llvm/tools/llvm-nm/llvm-nm.cpp
+++ b/llvm/tools/llvm-nm/llvm-nm.cpp
@@ -1109,31 +1109,30 @@ static void dumpSymbolNamesFromFile(std::string &Filename) {
       }
     }
 
-    {
-      Error Err;
-      for (auto &C : A->children(Err)) {
-        Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(&Context);
-        if (!ChildOrErr) {
-          if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError()))
-            error(std::move(E), Filename, C);
-          continue;
-        }
-        if (SymbolicFile *O = dyn_cast<SymbolicFile>(&*ChildOrErr.get())) {
-          if (!checkMachOAndArchFlags(O, Filename))
-            return;
-          if (!PrintFileName) {
-            outs() << "\n";
-            if (isa<MachOObjectFile>(O)) {
-              outs() << Filename << "(" << O->getFileName() << ")";
-            } else
-              outs() << O->getFileName();
-            outs() << ":\n";
-          }
-          dumpSymbolNamesFromObject(*O, false, Filename);
+    for (Archive::child_iterator I = A->child_begin(), E = A->child_end();
+         I != E; ++I) {
+      if (error(I->getError()))
+        return;
+      auto &C = I->get();
+      Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(&Context);
+      if (!ChildOrErr) {
+        if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError()))
+          error(std::move(E), Filename, C);
+        continue;
+      }
+      if (SymbolicFile *O = dyn_cast<SymbolicFile>(&*ChildOrErr.get())) {
+        if (!checkMachOAndArchFlags(O, Filename))
+          return;
+        if (!PrintFileName) {
+          outs() << "\n";
+          if (isa<MachOObjectFile>(O)) {
+            outs() << Filename << "(" << O->getFileName() << ")";
+          } else
+            outs() << O->getFileName();
+          outs() << ":\n";
         }
+        dumpSymbolNamesFromObject(*O, false, Filename);
       }
-      if (Err)
-        error(std::move(Err), A->getFileName());
     }
     return;
   }
@@ -1175,8 +1174,12 @@ static void dumpSymbolNamesFromFile(std::string &Filename) {
             } else if (Expected<std::unique_ptr<Archive>> AOrErr =
                            I->getAsArchive()) {
               std::unique_ptr<Archive> &A = *AOrErr;
-              Error Err;
-              for (auto &C : A->children(Err)) {
+              for (Archive::child_iterator AI = A->child_begin(),
+                                           AE = A->child_end();
+                   AI != AE; ++AI) {
+                if (error(AI->getError()))
+                  return;
+                auto &C = AI->get();
                 Expected<std::unique_ptr<Binary>> ChildOrErr =
                     C.getAsBinary(&Context);
                 if (!ChildOrErr) {
@@ -1206,8 +1209,6 @@ static void dumpSymbolNamesFromFile(std::string &Filename) {
                                             ArchitectureName);
                 }
               }
-              if (Err)
-                error(std::move(Err), A->getFileName());
             } else {
               consumeError(AOrErr.takeError());
               error(Filename + " for architecture " +
@@ -1246,8 +1247,12 @@ static void dumpSymbolNamesFromFile(std::string &Filename) {
           } else if (Expected<std::unique_ptr<Archive>> AOrErr =
                          I->getAsArchive()) {
             std::unique_ptr<Archive> &A = *AOrErr;
-            Error Err;
-            for (auto &C : A->children(Err)) {
+            for (Archive::child_iterator AI = A->child_begin(),
+                                         AE = A->child_end();
+                 AI != AE; ++AI) {
+              if (error(AI->getError()))
+                return;
+              auto &C = AI->get();
               Expected<std::unique_ptr<Binary>> ChildOrErr =
                   C.getAsBinary(&Context);
               if (!ChildOrErr) {
@@ -1267,8 +1272,6 @@ static void dumpSymbolNamesFromFile(std::string &Filename) {
                 dumpSymbolNamesFromObject(*O, false, ArchiveName);
               }
             }
-            if (Err)
-              error(std::move(Err), A->getFileName());
           } else {
             consumeError(AOrErr.takeError());
             error(Filename + " for architecture " +
@@ -1313,8 +1316,11 @@ static void dumpSymbolNamesFromFile(std::string &Filename) {
       } else if (Expected<std::unique_ptr<Archive>> AOrErr =
                   I->getAsArchive()) {
         std::unique_ptr<Archive> &A = *AOrErr;
-        Error Err;
-        for (auto &C : A->children(Err)) {
+        for (Archive::child_iterator AI = A->child_begin(), AE = A->child_end();
+             AI != AE; ++AI) {
+          if (error(AI->getError()))
+            return;
+          auto &C = AI->get();
           Expected<std::unique_ptr<Binary>> ChildOrErr =
             C.getAsBinary(&Context);
           if (!ChildOrErr) {
@@ -1343,8 +1349,6 @@ static void dumpSymbolNamesFromFile(std::string &Filename) {
             dumpSymbolNamesFromObject(*O, false, ArchiveName, ArchitectureName);
           }
         }
-        if (Err)
-          error(std::move(Err), A->getFileName());
       } else {
         consumeError(AOrErr.takeError());
         error(Filename + " for architecture " +