1 | //===- TypeRecordHelpers.h --------------------------------------*- C++ -*-===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #ifndef LLVM_DEBUGINFO_CODEVIEW_TYPERECORDHELPERS_H |
10 | #define LLVM_DEBUGINFO_CODEVIEW_TYPERECORDHELPERS_H |
11 | |
12 | #include "llvm/DebugInfo/CodeView/CVRecord.h" |
13 | #include "llvm/DebugInfo/CodeView/TypeIndex.h" |
14 | |
15 | namespace llvm { |
16 | namespace codeview { |
17 | |
18 | /// Given an arbitrary codeview type, determine if it is an LF_STRUCTURE, |
19 | /// LF_CLASS, LF_INTERFACE, LF_UNION, or LF_ENUM with the forward ref class |
20 | /// option. |
21 | bool isUdtForwardRef(CVType CVT); |
22 | |
23 | /// Given a CVType which is assumed to be an LF_MODIFIER, return the |
24 | /// TypeIndex of the type that the LF_MODIFIER modifies. |
25 | TypeIndex getModifiedType(const CVType &CVT); |
26 | |
27 | /// Return true if this record should be in the IPI stream of a PDB. In an |
28 | /// object file, these record kinds will appear mixed into the .debug$T section. |
29 | inline bool isIdRecord(TypeLeafKind K) { |
30 | switch (K) { |
31 | case TypeLeafKind::LF_FUNC_ID: |
32 | case TypeLeafKind::LF_MFUNC_ID: |
33 | case TypeLeafKind::LF_STRING_ID: |
34 | case TypeLeafKind::LF_SUBSTR_LIST: |
35 | case TypeLeafKind::LF_BUILDINFO: |
36 | case TypeLeafKind::LF_UDT_SRC_LINE: |
37 | case TypeLeafKind::LF_UDT_MOD_SRC_LINE: |
38 | return true; |
39 | default: |
40 | return false; |
41 | } |
42 | } |
43 | |
44 | /// Given an arbitrary codeview type, determine if it is an LF_STRUCTURE, |
45 | /// LF_CLASS, LF_INTERFACE, LF_UNION. |
46 | inline bool isAggregate(CVType CVT) { |
47 | switch (CVT.kind()) { |
48 | case LF_STRUCTURE: |
49 | case LF_CLASS: |
50 | case LF_INTERFACE: |
51 | case LF_UNION: |
52 | return true; |
53 | default: |
54 | return false; |
55 | } |
56 | } |
57 | |
58 | /// Given an arbitrary codeview type index, determine its size. |
59 | uint64_t getSizeInBytesForTypeIndex(TypeIndex TI); |
60 | |
61 | /// Given an arbitrary codeview type, return the type's size in the case |
62 | /// of aggregate (LF_STRUCTURE, LF_CLASS, LF_INTERFACE, LF_UNION). |
63 | uint64_t getSizeInBytesForTypeRecord(CVType CVT); |
64 | |
65 | } // namespace codeview |
66 | } // namespace llvm |
67 | |
68 | #endif |
69 | |