Use delegation instead of inheritance.

This changes DwarfContext to delegate to DwarfObject instead of having
pure virtual methods.

With this DwarfContextInMemory is replaced with an implementation of
DwarfObject that is local to a .cpp file.

llvm-svn: 308543

2 files changed, 4 insertions, 4 deletions

diff --git a/llvm/tools/llvm-objdump/MachODump.cpp b/llvm/tools/llvm-objdump/MachODump.cpp
index 05c2c3f7c4c..3bab94d681a 100644
--- a/llvm/tools/llvm-objdump/MachODump.cpp
+++ b/llvm/tools/llvm-objdump/MachODump.cpp
@@ -1275,7 +1275,7 @@ static void ProcessMachO(StringRef Name, MachOObjectFile *MachOOF,
     printWeakBindTable(MachOOF);
 
   if (DwarfDumpType != DIDT_Null) {
-    std::unique_ptr<DIContext> DICtx(new DWARFContextInMemory(*MachOOF));
+    std::unique_ptr<DIContext> DICtx = DWARFContext::create(*MachOOF);
     // Dump the complete DWARF structure.
     DIDumpOptions DumpOpts;
     DumpOpts.DumpType = DwarfDumpType;
@@ -6594,7 +6594,7 @@ static void DisassembleMachO(StringRef Filename, MachOObjectFile *MachOOF,
     }
 
     // Setup the DIContext
-    diContext.reset(new DWARFContextInMemory(*DbgObj));
+    diContext = DWARFContext::create(*DbgObj);
   }
 
   if (FilterSections.size() == 0)
diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp b/llvm/tools/llvm-objdump/llvm-objdump.cpp
index d54b45515f0..c772204a8ed 100644
--- a/llvm/tools/llvm-objdump/llvm-objdump.cpp
+++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -62,8 +62,8 @@
 #include <cctype>
 #include <cstring>
 #include <system_error>
-#include <utility>
 #include <unordered_map>
+#include <utility>
 
 using namespace llvm;
 using namespace object;
@@ -2081,7 +2081,7 @@ static void DumpObject(ObjectFile *o, const Archive *a = nullptr) {
   if (PrintFaultMaps)
     printFaultMaps(o);
   if (DwarfDumpType != DIDT_Null) {
-    std::unique_ptr<DIContext> DICtx(new DWARFContextInMemory(*o));
+    std::unique_ptr<DIContext> DICtx = DWARFContext::create(*o);
     // Dump the complete DWARF structure.
     DIDumpOptions DumpOpts;
     DumpOpts.DumpType = DwarfDumpType;