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_LIB_DEBUGINFO_DWARFABBREVIATIONDECLARATION_H
11 #define LLVM_LIB_DEBUGINFO_DWARFABBREVIATIONDECLARATION_H
12 
13 #include "llvm/ADT/SmallVector.h"
14 #include "llvm/Support/DataExtractor.h"
15 
16 namespace llvm {
17 
18 class raw_ostream;
19 
20 class DWARFAbbreviationDeclaration {
21   uint32_t Code;
22   uint32_t Tag;
23   bool HasChildren;
24 
25   struct AttributeSpec {
AttributeSpecAttributeSpec26     AttributeSpec(uint16_t Attr, uint16_t Form) : Attr(Attr), Form(Form) {}
27     uint16_t Attr;
28     uint16_t Form;
29   };
30   typedef SmallVector<AttributeSpec, 8> AttributeSpecVector;
31   AttributeSpecVector AttributeSpecs;
32 public:
33   DWARFAbbreviationDeclaration();
34 
getCode()35   uint32_t getCode() const { return Code; }
getTag()36   uint32_t getTag() const { return Tag; }
hasChildren()37   bool hasChildren() const { return HasChildren; }
38 
39   typedef iterator_range<AttributeSpecVector::const_iterator>
40   attr_iterator_range;
41 
attributes()42   attr_iterator_range attributes() const {
43     return attr_iterator_range(AttributeSpecs.begin(), AttributeSpecs.end());
44   }
45 
getFormByIndex(uint32_t idx)46   uint16_t getFormByIndex(uint32_t idx) const {
47     return idx < AttributeSpecs.size() ? AttributeSpecs[idx].Form : 0;
48   }
49 
50   uint32_t findAttributeIndex(uint16_t attr) const;
51   bool extract(DataExtractor Data, uint32_t* OffsetPtr);
52   void dump(raw_ostream &OS) const;
53 
54 private:
55   void clear();
56 };
57 
58 }
59 
60 #endif
61