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| //===- TypeVisitorCallbacks.h -----------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_DEBUGINFO_CODEVIEW_TYPEVISITORCALLBACKS_H
#define LLVM_DEBUGINFO_CODEVIEW_TYPEVISITORCALLBACKS_H
#include "llvm/DebugInfo/CodeView/TypeRecord.h"
#include "llvm/Support/Error.h"
namespace llvm {
namespace codeview {
class TypeVisitorCallbacks {
public:
virtual ~TypeVisitorCallbacks() = default;
/// Action to take on unknown types. By default, they are ignored.
virtual Error visitUnknownType(CVType &Record) { return Error::success(); }
/// Paired begin/end actions for all types. Receives all record data,
/// including the fixed-length record prefix. visitTypeBegin() should return
/// the type of the Record, or an error if it cannot be determined. Exactly
/// one of the two visitTypeBegin methods will be called, depending on whether
/// records are being visited sequentially or randomly. An implementation
/// should be prepared to handle both (or assert if it can't handle random
/// access visitation).
virtual Error visitTypeBegin(CVType &Record) { return Error::success(); }
virtual Error visitTypeBegin(CVType &Record, TypeIndex Index) {
return Error::success();
}
virtual Error visitTypeEnd(CVType &Record) { return Error::success(); }
virtual Error visitUnknownMember(CVMemberRecord &Record) {
return Error::success();
}
virtual Error visitMemberBegin(CVMemberRecord &Record) {
return Error::success();
}
virtual Error visitMemberEnd(CVMemberRecord &Record) {
return Error::success();
}
#define TYPE_RECORD(EnumName, EnumVal, Name) \
virtual Error visitKnownRecord(CVType &CVR, Name##Record &Record) { \
return Error::success(); \
}
#define MEMBER_RECORD(EnumName, EnumVal, Name) \
virtual Error visitKnownMember(CVMemberRecord &CVM, Name##Record &Record) { \
return Error::success(); \
}
#define TYPE_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
#define MEMBER_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
#include "llvm/DebugInfo/CodeView/CodeViewTypes.def"
#undef TYPE_RECORD
#undef TYPE_RECORD_ALIAS
#undef MEMBER_RECORD
#undef MEMBER_RECORD_ALIAS
};
} // end namespace codeview
} // end namespace llvm
#endif // LLVM_DEBUGINFO_CODEVIEW_TYPEVISITORCALLBACKS_H
|