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1 //===-- DWARFAbbreviationDeclaration.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_DWARFABBREVIATIONDECLARATION_H
11 #define LLVM_DEBUGINFO_DWARFABBREVIATIONDECLARATION_H
12 
13 #include "DWARFAttribute.h"
14 #include "llvm/ADT/SmallVector.h"
15 #include "llvm/Support/DataExtractor.h"
16 
17 namespace llvm {
18 
19 class raw_ostream;
20 
21 class DWARFAbbreviationDeclaration {
22   uint32_t Code;
23   uint32_t Tag;
24   bool HasChildren;
25   SmallVector<DWARFAttribute, 8> Attributes;
26 public:
27   enum { InvalidCode = 0 };
DWARFAbbreviationDeclaration()28   DWARFAbbreviationDeclaration()
29     : Code(InvalidCode), Tag(0), HasChildren(0) {}
30 
getCode()31   uint32_t getCode() const { return Code; }
getTag()32   uint32_t getTag() const { return Tag; }
hasChildren()33   bool hasChildren() const { return HasChildren; }
getNumAttributes()34   uint32_t getNumAttributes() const { return Attributes.size(); }
getAttrByIndex(uint32_t idx)35   uint16_t getAttrByIndex(uint32_t idx) const {
36     return Attributes.size() > idx ? Attributes[idx].getAttribute() : 0;
37   }
getFormByIndex(uint32_t idx)38   uint16_t getFormByIndex(uint32_t idx) const {
39     return Attributes.size() > idx ? Attributes[idx].getForm() : 0;
40   }
41 
42   uint32_t findAttributeIndex(uint16_t attr) const;
43   bool extract(DataExtractor data, uint32_t* offset_ptr);
44   bool extract(DataExtractor data, uint32_t* offset_ptr, uint32_t code);
isValid()45   bool isValid() const { return Code != 0 && Tag != 0; }
46   void dump(raw_ostream &OS) const;
getAttributes()47   const SmallVectorImpl<DWARFAttribute> &getAttributes() const {
48     return Attributes;
49   }
50 };
51 
52 }
53 
54 #endif
55