Mercurial > projects > ldc
annotate gen/logger.h @ 1562:95d710d405e3
Fixed compiling with llvm rev > 77732
author | Tomas Lindquist Olsen <tomas.l.olsen gmail com> |
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date | Sat, 01 Aug 2009 18:23:52 +0200 |
parents | 2292878925f4 |
children | 40bd4a0d4870 |
rev | line source |
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1 | 1 #ifndef _llvmd_gen_logger_h_ |
2 #define _llvmd_gen_logger_h_ | |
3 | |
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4 #include <iosfwd> |
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5 |
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6 namespace llvm { |
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7 class Type; |
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8 class Value; |
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9 } |
1 | 10 |
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11 #ifndef IS_PRINTF |
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12 # ifdef __GNUC__ |
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13 # define IS_PRINTF(FMTARG) __attribute((__format__ (__printf__, (FMTARG), (FMTARG)+1) )) |
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14 # else |
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15 # define IS_PRINTF(FMTARG) |
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16 # endif |
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17 #endif |
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18 |
132 | 19 struct Loc; |
20 | |
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21 class Stream { |
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22 std::ostream* OS; |
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23 |
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24 public: |
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25 Stream() : OS(0) {} |
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26 Stream(std::ostream* S) : OS(S) {} |
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27 Stream(std::ostream& S) : OS(&S) {} |
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28 |
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29 Stream operator << (std::ios_base &(*Func)(std::ios_base&)) { |
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30 if (OS) *OS << Func; |
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31 return *this; |
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32 } |
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33 |
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34 Stream operator << (std::ostream &(*Func)(std::ostream&)) { |
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35 if (OS) *OS << Func; |
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36 return *this; |
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37 } |
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38 |
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39 template<typename Ty> |
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40 Stream& operator << (const Ty& Thing) { |
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41 if (OS) |
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42 Writer<Ty, sizeof(sfinae_bait(Thing))>::write(*OS, Thing); |
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43 return *this; |
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44 } |
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45 |
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46 private: |
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47 // Implementation details to treat llvm::Value, llvm::Type and their |
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48 // subclasses specially (to pretty-print types). |
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49 |
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50 static void writeType(std::ostream& OS, const llvm::Type& Ty); |
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51 static void writeValue(std::ostream& OS, const llvm::Value& Ty); |
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52 |
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53 template<typename Ty, int N> friend struct Writer; |
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54 // error: function template partial specialization is not allowed |
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55 // So I guess type partial specialization + member function will have to do... |
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56 template<typename Ty, int N> |
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57 struct Writer { |
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58 static void write(std::ostream& OS, const Ty& Thing) { |
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59 OS << Thing; |
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60 } |
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61 }; |
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62 |
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63 template<typename Ty> |
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64 struct Writer<Ty, 1> { |
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65 static void write(std::ostream& OS, const llvm::Type& Thing) { |
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66 Stream::writeType(OS, Thing); |
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67 } |
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68 static void write(std::ostream& OS, const llvm::Value& Thing) { |
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69 Stream::writeValue(OS, Thing); |
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70 } |
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71 }; |
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72 |
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73 // NOT IMPLEMENTED |
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74 char sfinae_bait(const llvm::Type&); |
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75 char sfinae_bait(const llvm::Value&); |
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76 short sfinae_bait(...); |
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77 }; |
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78 |
1 | 79 namespace Logger |
80 { | |
81 void indent(); | |
82 void undent(); | |
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83 Stream cout(); |
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84 void println(const char* fmt, ...) IS_PRINTF(1); |
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85 void print(const char* fmt, ...) IS_PRINTF(1); |
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86 void enable(); |
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87 void disable(); |
131 | 88 bool enabled(); |
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89 |
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90 void attention(Loc loc, const char* fmt, ...) IS_PRINTF(2); |
1 | 91 |
92 struct LoggerScope | |
93 { | |
94 LoggerScope() | |
95 { | |
96 Logger::indent(); | |
97 } | |
98 ~LoggerScope() | |
99 { | |
100 Logger::undent(); | |
101 } | |
102 }; | |
103 } | |
104 | |
105 #define LOG_SCOPE Logger::LoggerScope _logscope; | |
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106 |
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107 #define IF_LOG if (Logger::enabled()) |
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108 |
1 | 109 #endif |
110 |