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Declare tabArray const.
author David Nadlinger <code@klickverbot.at>
date Fri, 06 May 2011 13:39:49 +0200
parents bd7f485e3573
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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a032df77b6ab Simple debug helper. Unittests. Meta-object for polymorphic non-QObjects
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1 module qtd.Debug;
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2
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3 version (QtdUnittest)
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4 debug = UseQtdDebug;
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5 else debug (QtdDebug)
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6 debug = UseQtdDebug;
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7
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8 debug (UseQtdDebug)
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9 {
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10 import
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11 std.string,
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12 qtd.QtdObject;
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13 }
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14
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15 string debugHandler(string handler, string[] args...)
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16 {
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17 debug (UseQtdDebug)
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18 {
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19 string result = "qtdDebug." ~ handler ~ "(";
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20 foreach (i, arg; args)
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21 {
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22 if (i)
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23 result ~= ", ";
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24 result ~= arg;
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25 }
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26 return result ~ ");";
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27 }
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28 else
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29 return "";
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30 }
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31
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32 debug (UseQtdDebug)
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33 {
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34 debug (QtdVerbose)
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35 {
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36 import
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37 std.stdio,
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38 std.string;
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39 }
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40
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41 final shared class QtdDebug
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42 {
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43 enum MessageType
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44 {
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45 info,
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46 warning,
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47 error
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48 }
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49
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50 private
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51 {
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52 static immutable msgTypeStrs = ["Info", "Warning", "Error"];
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53 int wrapperCount_;
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54 int nativeDeletedCount_;
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55
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56 this() {}
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57 }
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58
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59 string wrapperToString(QtdObject wrapper)
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60 {
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61 static assert (QtdObjectFlags.sizeof == ubyte.sizeof);
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62 auto flags = wrapper.qtdFlags;
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63 return format("%s (nativeId: %s, this ptr: %s, flags: %b)"
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64 , wrapper, wrapper.qtdNativeId
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65 , cast(void*)wrapper, *cast(ubyte*)&flags);
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66 }
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67
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68 void onWrapperConstructed(QtdObject wrapper)
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69 {
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70 info("QtdObject constructed: " ~ wrapperToString(wrapper));
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71 wrapperCount_++;
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72 }
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73
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74 void onWrapperDestruction(QtdObject wrapper)
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75 {
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76 info("Entering QtdObject destructor: " ~ wrapperToString(wrapper));
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77 }
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78
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79 void onWrapperDestroyed(QtdObject wrapper)
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80 {
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81 info(format("Leaving QtdObject destructor (dId: %s)", cast(void*)wrapper));
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82 wrapperCount_--;
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83 }
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84
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85 void onNativeDeleted(QtdObject wrapper)
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86 {
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87 info(format("Native object deleted (dId: %s)", cast(void*)wrapper));
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88 nativeDeletedCount_++;
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89 }
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90
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91 void onObjectOwnershipChanged(QtdObject wrapper)
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92 {
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93 info("Object ownership changed: " ~ wrapperToString(wrapper));
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94 }
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95
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96 void onDeletingWrapperFromNative(QtdObject wrapper)
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97 {
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98 info(format("Wrapper deletion initiated from C++ (wrapper id: %s)", cast(void*)wrapper));
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99 }
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100
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101 @property int wrapperCount()
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102 {
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103 return wrapperCount_;
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104 }
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105
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106 @property int nativeDeletedCount()
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107 {
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108 return nativeDeletedCount_;
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109 }
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110
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111 void reset()
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112 {
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113 wrapperCount_ = 0;
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114 nativeDeletedCount_ = 0;
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115 }
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116
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117 static void info(lazy string msg)
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118 {
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119 message(msg, MessageType.info);
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120 }
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121
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122 static void warning(lazy string msg)
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123 {
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124 message(msg, MessageType.warning);
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125 }
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126
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127 static void error(lazy string msg)
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128 {
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129 message(msg, MessageType.error);
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130 }
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131
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132 static void message(lazy string msg, MessageType msgType = MessageType.info)
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133 {
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134 // The check is deliberately placed here and not at the call sites.
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135 // For simplicity, there are only two levels of debug verbosity:
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136 // verbose and silent.
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137 debug (QtdVerbose)
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138 writefln("[QtD %s] %s", msgTypeStrs[msgType], msg);
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139 }
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140 }
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141
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142 private shared QtdDebug _qtdDebug;
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143 static QtdDebug qtdDebug()
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144 {
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145 return _qtdDebug;
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146 }
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147
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148 shared static this()
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149 {
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150 _qtdDebug = new QtdDebug;
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151 }
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152 }
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153