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1 : //===- TypeVisitorCallbacks.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_TYPEVISITORCALLBACKS_H
11 : #define LLVM_DEBUGINFO_CODEVIEW_TYPEVISITORCALLBACKS_H
12 :
13 : #include "llvm/DebugInfo/CodeView/TypeRecord.h"
14 : #include "llvm/Support/Error.h"
15 :
16 : namespace llvm {
17 : namespace codeview {
18 :
19 : class TypeVisitorCallbacks {
20 : public:
21 0 : virtual ~TypeVisitorCallbacks() = default;
22 :
23 : /// Action to take on unknown types. By default, they are ignored.
24 0 : virtual Error visitUnknownType(CVType &Record) { return Error::success(); }
25 : /// Paired begin/end actions for all types. Receives all record data,
26 : /// including the fixed-length record prefix. visitTypeBegin() should return
27 : /// the type of the Record, or an error if it cannot be determined. Exactly
28 : /// one of the two visitTypeBegin methods will be called, depending on whether
29 : /// records are being visited sequentially or randomly. An implementation
30 : /// should be prepared to handle both (or assert if it can't handle random
31 : /// access visitation).
32 0 : virtual Error visitTypeBegin(CVType &Record) { return Error::success(); }
33 0 : virtual Error visitTypeBegin(CVType &Record, TypeIndex Index) {
34 0 : return Error::success();
35 : }
36 28 : virtual Error visitTypeEnd(CVType &Record) { return Error::success(); }
37 :
38 180 : virtual Error visitUnknownMember(CVMemberRecord &Record) {
39 180 : return Error::success();
40 : }
41 :
42 1294 : virtual Error visitMemberBegin(CVMemberRecord &Record) {
43 1294 : return Error::success();
44 : }
45 :
46 1294 : virtual Error visitMemberEnd(CVMemberRecord &Record) {
47 1294 : return Error::success();
48 : }
49 :
50 : #define TYPE_RECORD(EnumName, EnumVal, Name) \
51 : virtual Error visitKnownRecord(CVType &CVR, Name##Record &Record) { \
52 : return Error::success(); \
53 : }
54 : #define MEMBER_RECORD(EnumName, EnumVal, Name) \
55 : virtual Error visitKnownMember(CVMemberRecord &CVM, Name##Record &Record) { \
56 : return Error::success(); \
57 : }
58 :
59 : #define TYPE_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
60 : #define MEMBER_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
61 : #include "llvm/DebugInfo/CodeView/CodeViewTypes.def"
62 : #undef TYPE_RECORD
63 : #undef TYPE_RECORD_ALIAS
64 : #undef MEMBER_RECORD
65 : #undef MEMBER_RECORD_ALIAS
66 : };
67 :
68 : } // end namespace codeview
69 : } // end namespace llvm
70 :
71 : #endif // LLVM_DEBUGINFO_CODEVIEW_TYPEVISITORCALLBACKS_H
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