[MC] Disable default copy ctor and copy assignment operator for CodeViewContext

class CodeViewContext manages resources such as dynamically allocated memory, it's generally a good practice to either implement a custom copy constructor or disable the default one.

Reviewed By: skan

Differential Revision: https://reviews.llvm.org/D151695

diff --git a/llvm/include/llvm/MC/MCCodeView.h b/llvm/include/llvm/MC/MCCodeView.h
index 3d15c40..3e997b1 100644 (file)
--- a/llvm/include/llvm/MC/MCCodeView.h
+++ b/llvm/include/llvm/MC/MCCodeView.h
@@ -146,6 +146,9 @@ public:
   CodeViewContext();
   ~CodeViewContext();
 
+  CodeViewContext &operator=(const CodeViewContext &other) = delete;
+  CodeViewContext(const CodeViewContext &other) = delete;
+
   bool isValidFileNumber(unsigned FileNumber) const;
   bool addFile(MCStreamer &OS, unsigned FileNumber, StringRef Filename,
                ArrayRef<uint8_t> ChecksumBytes, uint8_t ChecksumKind);