Mercurial > projects > ldc
annotate gen/logger.h @ 1651:cb960b882ca3 default tip
bindings were moved to dsource.org/projects/bindings/
author | Moritz Warning <moritzwarning@web.de> |
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date | Thu, 20 May 2010 20:05:03 +0200 |
parents | 40bd4a0d4870 |
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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; |
1650 | 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) {} |
1650 | 28 |
29 /* | |
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30 Stream operator << (std::ios_base &(*Func)(std::ios_base&)) { |
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31 if (OS) *OS << Func; |
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32 return *this; |
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33 } |
1650 | 34 */ |
35 | |
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36 Stream operator << (std::ostream &(*Func)(std::ostream&)) { |
1650 | 37 if (OS) Func(*OS); |
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38 return *this; |
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39 } |
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41 template<typename Ty> |
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42 Stream& operator << (const Ty& Thing) { |
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43 if (OS) |
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44 Writer<Ty, sizeof(sfinae_bait(Thing))>::write(*OS, Thing); |
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45 return *this; |
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46 } |
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48 private: |
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49 // Implementation details to treat llvm::Value, llvm::Type and their |
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50 // subclasses specially (to pretty-print types). |
1650 | 51 |
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52 static void writeType(std::ostream& OS, const llvm::Type& Ty); |
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53 static void writeValue(std::ostream& OS, const llvm::Value& Ty); |
1650 | 54 |
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55 template<typename Ty, int N> friend struct Writer; |
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56 // error: function template partial specialization is not allowed |
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57 // So I guess type partial specialization + member function will have to do... |
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58 template<typename Ty, int N> |
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59 struct Writer { |
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60 static void write(std::ostream& OS, const Ty& Thing) { |
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61 OS << Thing; |
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62 } |
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63 }; |
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65 template<typename Ty> |
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66 struct Writer<Ty, 1> { |
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67 static void write(std::ostream& OS, const llvm::Type& Thing) { |
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68 Stream::writeType(OS, Thing); |
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69 } |
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70 static void write(std::ostream& OS, const llvm::Value& Thing) { |
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71 Stream::writeValue(OS, Thing); |
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72 } |
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73 }; |
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75 // NOT IMPLEMENTED |
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76 char sfinae_bait(const llvm::Type&); |
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77 char sfinae_bait(const llvm::Value&); |
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78 short sfinae_bait(...); |
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79 }; |
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80 |
1 | 81 namespace Logger |
82 { | |
83 void indent(); | |
84 void undent(); | |
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85 Stream cout(); |
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86 void println(const char* fmt, ...) IS_PRINTF(1); |
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87 void print(const char* fmt, ...) IS_PRINTF(1); |
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88 void enable(); |
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89 void disable(); |
131 | 90 bool enabled(); |
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91 |
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92 void attention(Loc loc, const char* fmt, ...) IS_PRINTF(2); |
1 | 93 |
94 struct LoggerScope | |
95 { | |
96 LoggerScope() | |
97 { | |
98 Logger::indent(); | |
99 } | |
100 ~LoggerScope() | |
101 { | |
102 Logger::undent(); | |
103 } | |
104 }; | |
105 } | |
106 | |
107 #define LOG_SCOPE Logger::LoggerScope _logscope; | |
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108 |
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109 #define IF_LOG if (Logger::enabled()) |
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110 |
1 | 111 #endif |
112 |