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annotate basic/Message.d @ 93:621cedba53ea new_gen

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Removed the Symbol from semantics - it was not needed anymore. From now on you set the type by doing a setType on an Identifier.
author Anders Johnsen <skabet@gmail.com>
date Mon, 05 May 2008 20:53:13 +0200
parents 771ac63898e2
children 5f258eaf9517
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rev   line source
89
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1 module basic.Message;
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3 import tango.core.Exception,
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4 Array = tango.core.Array,
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5 tango.io.Stdout,
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6 tango.text.Util;
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8 import tango.stdc.stdlib;
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10 import llvm.type;
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12 import lexer.Token,
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13 lexer.Lexer,
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14 sema.DType;
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16 import basic.SourceLocation,
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17 basic.SourceManager;
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19 public import basic.Messages;
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21 enum ExitLevel
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22 {
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23 Normal = 1,
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24 Lexer = 2,
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25 Parser = 3,
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26 }
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28 class MessageHandler
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29 {
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30 public:
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32 this(SourceManager src_mgr)
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33 {
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34 this.src_mgr = src_mgr;
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35 }
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37 Message report(uint opcode, SLoc location)
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38 {
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39 Message m = new Message(opcode, location, src_mgr, this);
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40 messages ~= m;
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41 return m;
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42 }
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44 void checkErrors(ExitLevel exitlevel = ExitLevel.Normal)
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45 {
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46 if(messages.length == 0)
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47 return;
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49 if(warnings)
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50 checkWarnings;
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51 foreach(m ; messages)
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52 if(m.type == MessageType.Error)
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53 {
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54 Stdout(m).newline;
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55 }
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57 exit(exitlevel);
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58 }
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60 void checkWarnings()
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61 {
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62 foreach(m ; messages)
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63 if(m.type == MessageType.Warning)
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64 {
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65 Stdout(m).newline;
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66 }
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67 }
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69 void showWarnings(bool value)
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70 {
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71 warnings = value;
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72 }
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74 private:
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75 Message[] messages;
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76 SourceManager src_mgr;
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77 bool warnings;
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78 }
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80 class Message
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81 {
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83 this(int opcode, SLoc location, SourceManager src_mgr, MessageHandler msg_handler)
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84 {
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85 this.src_mgr = src_mgr;
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86 this.location = location;
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87 args ~= Messages[opcode].message;
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88 this.type = Messages[opcode].type;
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89 this.msg_handler = msg_handler;
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90 }
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91
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92 char[] toString()
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93 {
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94 char[256] tmp = void;
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95 char[] msg = layout(tmp, args);
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97 Lexer l = new Lexer(location, src_mgr, new MessageHandler(src_mgr));
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99 Token t = l.next;
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100
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101 if (src_mgr.getRawData(location).length > 0)
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102 msg = src_mgr.getLocationAsString(location) ~ ": " ~ msg;
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103 else
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104 msg = msg.dup;
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106
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107 char[] line = src_mgr.getLine(location);
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108 char[] marks = line.dup;
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109 marks[] = ' ';
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110 size_t p = src_mgr.getColumn(location);
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111 marks[p .. p + t.length] = '^';
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112
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113 msg ~= "\n ";
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114 msg ~= line;
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115 msg ~= "\n ";
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116 msg ~= marks;
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117
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118 return msg;
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119 }
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120
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121 Message arg(char[] s)
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122 {
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123 if (args.length == 11)
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124 throw new Exception("Sorry, errors only support up to 10 args");
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125 args ~= s;
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126 return this;
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127 }
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128
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129 Message arg(char[][] s)
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130 {
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131 char[] res = s[0 .. $ - 1].join(", ");
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132 if (s.length > 1)
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133 res ~= " and ";
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134 res ~= s[$ - 1];
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135 return arg(res);
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136 }
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137
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138 Message arg(char c)
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139 {
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140 return arg([c]);
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141 }
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142
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143 Message arg(DType[] types)
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144 {
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145 char[][] res;
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146 foreach (type; types)
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147 res ~= type.name();
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148 return arg(res);
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149 }
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150
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151 Message fatal(ExitLevel exitlevel = ExitLevel.Normal)
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152 {
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153 msg_handler.checkErrors(exitlevel);
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154 return this;
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155 }
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156
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157 /*
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158 Message loc(SLoc loc)
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159 {
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160 location = loc;
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161 return this;
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162 }
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163 */
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164
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165 MessageType type;
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166 private:
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167 char[][] args;
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168 SLoc location;
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169 SourceManager src_mgr;
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170 MessageHandler msg_handler;
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171 }