blob: 473cb85659daf3f487723210784c55488317a5cf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
//===- ASTRecordLayoutBuilder.h - Helper class for building record layouts ===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_AST_RECORDLAYOUTBUILDER_H
#define LLVM_CLANG_AST_RECORDLAYOUTBUILDER_H
#include "llvm/ADT/SmallVector.h"
namespace clang {
class ASTContext;
class ASTRecordLayout;
class FieldDecl;
class ObjCImplementationDecl;
class ObjCInterfaceDecl;
class RecordDecl;
class ASTRecordLayoutBuilder {
ASTContext &Ctx;
uint64_t Size;
uint64_t Alignment;
llvm::SmallVector<uint64_t, 16> FieldOffsets;
unsigned StructPacking;
unsigned NextOffset;
bool IsUnion;
ASTRecordLayoutBuilder(ASTContext &Ctx);
void Layout(const RecordDecl *D);
void Layout(const ObjCInterfaceDecl *D,
const ObjCImplementationDecl *Impl);
void LayoutField(const FieldDecl *D);
void FinishLayout();
void UpdateAlignment(unsigned NewAlignment);
ASTRecordLayoutBuilder(const ASTRecordLayoutBuilder&); // DO NOT IMPLEMENT
void operator=(const ASTRecordLayoutBuilder&); // DO NOT IMPLEMENT
public:
static const ASTRecordLayout *ComputeLayout(ASTContext &Ctx,
const RecordDecl *RD);
static const ASTRecordLayout *ComputeLayout(ASTContext &Ctx,
const ObjCInterfaceDecl *D,
const ObjCImplementationDecl *Impl);
};
} // end namespace clang
#endif
|
