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1 //===- LinePrinter.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_TOOLS_LLVMPDBDUMP_LINEPRINTER_H
11 #define LLVM_TOOLS_LLVMPDBDUMP_LINEPRINTER_H
12 
13 #include "llvm/ADT/ArrayRef.h"
14 #include "llvm/ADT/StringRef.h"
15 #include "llvm/ADT/Twine.h"
16 #include "llvm/Support/BinaryStreamRef.h"
17 #include "llvm/Support/FormatVariadic.h"
18 #include "llvm/Support/Regex.h"
19 #include "llvm/Support/raw_ostream.h"
20 
21 #include <list>
22 
23 namespace llvm {
24 class BinaryStreamReader;
25 namespace msf {
26 class MSFStreamLayout;
27 } // namespace msf
28 namespace pdb {
29 
30 class ClassLayout;
31 class PDBFile;
32 
33 class LinePrinter {
34   friend class WithColor;
35 
36 public:
37   LinePrinter(int Indent, bool UseColor, raw_ostream &Stream);
38 
39   void Indent(uint32_t Amount = 0);
40   void Unindent(uint32_t Amount = 0);
41   void NewLine();
42 
43   void printLine(const Twine &T);
44   void print(const Twine &T);
formatLine(const char * Fmt,Ts &&...Items)45   template <typename... Ts> void formatLine(const char *Fmt, Ts &&... Items) {
46     printLine(formatv(Fmt, std::forward<Ts>(Items)...));
47   }
format(const char * Fmt,Ts &&...Items)48   template <typename... Ts> void format(const char *Fmt, Ts &&... Items) {
49     print(formatv(Fmt, std::forward<Ts>(Items)...));
50   }
51 
52   void formatBinary(StringRef Label, ArrayRef<uint8_t> Data,
53                     uint32_t StartOffset);
54   void formatBinary(StringRef Label, ArrayRef<uint8_t> Data, uint64_t BaseAddr,
55                     uint32_t StartOffset);
56 
57   void formatMsfStreamData(StringRef Label, PDBFile &File, uint32_t StreamIdx,
58                            StringRef StreamPurpose, uint32_t Offset,
59                            uint32_t Size);
60   void formatMsfStreamData(StringRef Label, PDBFile &File,
61                            const msf::MSFStreamLayout &Stream,
62                            BinarySubstreamRef Substream);
63   void formatMsfStreamBlocks(PDBFile &File, const msf::MSFStreamLayout &Stream);
64 
hasColor()65   bool hasColor() const { return UseColor; }
getStream()66   raw_ostream &getStream() { return OS; }
getIndentLevel()67   int getIndentLevel() const { return CurrentIndent; }
68 
69   bool IsClassExcluded(const ClassLayout &Class);
70   bool IsTypeExcluded(llvm::StringRef TypeName, uint32_t Size);
71   bool IsSymbolExcluded(llvm::StringRef SymbolName);
72   bool IsCompilandExcluded(llvm::StringRef CompilandName);
73 
74 private:
75   template <typename Iter>
SetFilters(std::list<Regex> & List,Iter Begin,Iter End)76   void SetFilters(std::list<Regex> &List, Iter Begin, Iter End) {
77     List.clear();
78     for (; Begin != End; ++Begin)
79       List.emplace_back(StringRef(*Begin));
80   }
81 
82   raw_ostream &OS;
83   int IndentSpaces;
84   int CurrentIndent;
85   bool UseColor;
86 
87   std::list<Regex> ExcludeCompilandFilters;
88   std::list<Regex> ExcludeTypeFilters;
89   std::list<Regex> ExcludeSymbolFilters;
90 
91   std::list<Regex> IncludeCompilandFilters;
92   std::list<Regex> IncludeTypeFilters;
93   std::list<Regex> IncludeSymbolFilters;
94 };
95 
96 struct PrintScope {
PrintScopePrintScope97   explicit PrintScope(LinePrinter &P, uint32_t IndentLevel)
98       : P(P), IndentLevel(IndentLevel) {}
PrintScopePrintScope99   explicit PrintScope(const PrintScope &Other, uint32_t LabelWidth)
100       : P(Other.P), IndentLevel(Other.IndentLevel), LabelWidth(LabelWidth) {}
101 
102   LinePrinter &P;
103   uint32_t IndentLevel;
104   uint32_t LabelWidth = 0;
105 };
106 
withLabelWidth(const Optional<PrintScope> & Scope,uint32_t W)107 inline Optional<PrintScope> withLabelWidth(const Optional<PrintScope> &Scope,
108                                            uint32_t W) {
109   if (!Scope)
110     return None;
111   return PrintScope{*Scope, W};
112 }
113 
114 struct AutoIndent {
115   explicit AutoIndent(LinePrinter &L, uint32_t Amount = 0)
116       : L(&L), Amount(Amount) {
117     L.Indent(Amount);
118   }
AutoIndentAutoIndent119   explicit AutoIndent(const Optional<PrintScope> &Scope) {
120     if (Scope.hasValue()) {
121       L = &Scope->P;
122       Amount = Scope->IndentLevel;
123     }
124   }
~AutoIndentAutoIndent125   ~AutoIndent() {
126     if (L)
127       L->Unindent(Amount);
128   }
129 
130   LinePrinter *L = nullptr;
131   uint32_t Amount = 0;
132 };
133 
134 template <class T>
135 inline raw_ostream &operator<<(LinePrinter &Printer, const T &Item) {
136   Printer.getStream() << Item;
137   return Printer.getStream();
138 }
139 
140 enum class PDB_ColorItem {
141   None,
142   Address,
143   Type,
144   Comment,
145   Padding,
146   Keyword,
147   Offset,
148   Identifier,
149   Path,
150   SectionHeader,
151   LiteralValue,
152   Register,
153 };
154 
155 class WithColor {
156 public:
157   WithColor(LinePrinter &P, PDB_ColorItem C);
158   ~WithColor();
159 
get()160   raw_ostream &get() { return OS; }
161 
162 private:
163   void applyColor(PDB_ColorItem C);
164   raw_ostream &OS;
165   bool UseColor;
166 };
167 }
168 }
169 
170 #endif
171