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//===--- RecordLayout.h - Layout information for a struct/union -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the RecordLayout interface.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_AST_LAYOUTINFO_H
#define LLVM_CLANG_AST_LAYOUTINFO_H
#include "llvm/Support/DataTypes.h"
namespace clang {
class ASTContext;
class RecordDecl;
/// ASTRecordLayout - This class contains layout information for one RecordDecl,
/// which is a struct/union/class. The decl represented must be a definition,
/// not a forward declaration. These objects are managed by ASTContext.
class ASTRecordLayout {
uint64_t Size; // Size of record in bits.
unsigned Alignment; // Alignment of record in bits.
uint64_t *FieldOffsets;
friend class ASTContext;
ASTRecordLayout() {}
~ASTRecordLayout() {
delete [] FieldOffsets;
}
void SetLayout(uint64_t size, unsigned alignment, uint64_t *fieldOffsets) {
Size = size; Alignment = alignment;
FieldOffsets = fieldOffsets;
}
ASTRecordLayout(const ASTRecordLayout&); // DO NOT IMPLEMENT
void operator=(const ASTRecordLayout&); // DO NOT IMPLEMENT
public:
unsigned getAlignment() const { return Alignment; }
uint64_t getSize() const { return Size; }
uint64_t getFieldOffset(unsigned FieldNo) const {
return FieldOffsets[FieldNo];
}
};
} // end namespace clang
#endif
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