[obj2yaml] Recognize input file format using llvm::object::ObjectFile

interface methods isCOFF().

The '-coff' command line option has been removed. It was not used in any
test cases.

The patch reviewed by Michael Spencer.

llvm-svn: 208157

1 files changed, 42 insertions, 0 deletions

diff --git a/llvm/tools/obj2yaml/Error.h b/llvm/tools/obj2yaml/Error.h
new file mode 100644
index 00000000000..a3266645551
--- /dev/null
+++ b/llvm/tools/obj2yaml/Error.h
@@ -0,0 +1,42 @@
+//===- Error.h - system_error extensions for obj2yaml -----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TOOLS_ERROR_H
+#define LLVM_TOOLS_ERROR_H
+
+#include "llvm/Support/system_error.h"
+
+namespace llvm {
+
+const error_category &obj2yaml_category();
+
+struct obj2yaml_error {
+  enum _ {
+    success = 0,
+    file_not_found,
+    unrecognized_file_format,
+    unsupported_obj_file_format
+  };
+  _ v_;
+
+  obj2yaml_error(_ v) : v_(v) {}
+  explicit obj2yaml_error(int v) : v_(_(v)) {}
+  operator int() const {return v_;}
+};
+
+inline error_code make_error_code(obj2yaml_error e) {
+  return error_code(static_cast<int>(e), obj2yaml_category());
+}
+
+template <> struct is_error_code_enum<obj2yaml_error> : std::true_type { };
+template <> struct is_error_code_enum<obj2yaml_error::_> : std::true_type { };
+
+} // namespace llvm
+
+#endif