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       1             : //===- SymbolVisitorCallbacks.h ---------------------------------*- C++ -*-===//
       2             : //
       3             : //                     The LLVM Compiler Infrastructure
       4             : //
       5             : // This file is distributed under the University of Illinois Open Source
       6             : // License. See LICENSE.TXT for details.
       7             : //
       8             : //===----------------------------------------------------------------------===//
       9             : 
      10             : #ifndef LLVM_DEBUGINFO_CODEVIEW_SYMBOLVISITORCALLBACKS_H
      11             : #define LLVM_DEBUGINFO_CODEVIEW_SYMBOLVISITORCALLBACKS_H
      12             : 
      13             : #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
      14             : #include "llvm/Support/Error.h"
      15             : 
      16             : namespace llvm {
      17             : namespace codeview {
      18             : 
      19             : class SymbolVisitorCallbacks {
      20             :   friend class CVSymbolVisitor;
      21             : 
      22             : public:
      23           0 :   virtual ~SymbolVisitorCallbacks() = default;
      24             : 
      25             :   /// Action to take on unknown symbols. By default, they are ignored.
      26           0 :   virtual Error visitUnknownSymbol(CVSymbol &Record) {
      27           0 :     return Error::success();
      28             :   }
      29             : 
      30             :   /// Paired begin/end actions for all symbols. Receives all record data,
      31             :   /// including the fixed-length record prefix.  visitSymbolBegin() should
      32             :   /// return the type of the Symbol, or an error if it cannot be determined.
      33           0 :   virtual Error visitSymbolBegin(CVSymbol &Record, uint32_t Offset) {
      34           0 :     return Error::success();
      35             :   }
      36           0 :   virtual Error visitSymbolBegin(CVSymbol &Record) { return Error::success(); }
      37           0 :   virtual Error visitSymbolEnd(CVSymbol &Record) { return Error::success(); }
      38             : 
      39             : #define SYMBOL_RECORD(EnumName, EnumVal, Name)                                 \
      40             :   virtual Error visitKnownRecord(CVSymbol &CVR, Name &Record) {                \
      41             :     return Error::success();                                                   \
      42             :   }
      43             : #define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
      44             : #include "llvm/DebugInfo/CodeView/CodeViewSymbols.def"
      45             : };
      46             : 
      47             : } // end namespace codeview
      48             : } // end namespace llvm
      49             : 
      50             : #endif // LLVM_DEBUGINFO_CODEVIEW_SYMBOLVISITORCALLBACKS_H