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annotate basic/Message.d @ 89:a49bb982a7b0 new_gen

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Using the new SourceLocation system to handle errors. Also, this is the first push for making the errors don't throw, but continue to check the source.
author Anders Johnsen <skabet@gmail.com>
date Sun, 04 May 2008 20:27:01 +0200
parents misc/Error.d@eb5b2c719a39
children 771ac63898e2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
89
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1 module basic.Message;
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2
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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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9
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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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15 sema.Symbol;
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17 import basic.SourceLocation,
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18 basic.SourceManager;
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20 public import basic.Messages;
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22 class MessageHandler
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23 {
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24 public:
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26 this(SourceManager src_mgr)
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27 {
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28 this.src_mgr = src_mgr;
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29 }
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31 Message report(uint opcode, SLoc location, bool fatal = false)
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32 {
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33 Message m = new Message(opcode, location, src_mgr);
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34 messages ~= m;
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35 if(fatal)
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36 checkErrors();
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37 return m;
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38 }
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40 void checkErrors()
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41 {
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42 if(messages.length == 0)
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43 return;
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45 foreach(m ; messages)
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46 if(m.type == MessageType.Error)
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47 {
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48 Stdout(m).newline;
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49 }
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51 exit(1);
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52 }
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54 void checkWarnings()
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55 {
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56 }
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58 void showWarnings(bool value)
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59 {
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60 warnings = value;
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61 }
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63 private:
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64 Message[] messages;
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65 SourceManager src_mgr;
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66 bool warnings;
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67 }
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69 class Message
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70 {
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71
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72 this(int opcode, SLoc location, SourceManager src_mgr)
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73 {
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74 this.src_mgr = src_mgr;
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75 this.location = location;
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76 args ~= Messages[opcode].message;
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77 this.type = Messages[opcode].type;
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78 }
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79
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80 char[] toString()
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81 {
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82 char[256] tmp = void;
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83 char[] msg = layout(tmp, args);
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84
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85 Lexer l = new Lexer(location, src_mgr, new MessageHandler(src_mgr));
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86
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87 Token t = l.next;
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88
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89 if (src_mgr.getRawData(location).length > 0)
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90 msg = src_mgr.getLocationAsString(location) ~ ": " ~ msg;
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91 else
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92 msg = msg.dup;
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94
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95 char[] line = src_mgr.getLine(location);
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96 char[] marks = line.dup;
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97 marks[] = ' ';
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98 size_t p = src_mgr.getOffsetToLine(location);
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99 marks[p .. p + t.length] = '^';
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100
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101 msg ~= "\n ";
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102 msg ~= line;
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103 msg ~= "\n ";
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104 msg ~= marks;
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105
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106 return msg;
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107 }
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108
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109 Message arg(char[] s)
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110 {
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111 if (args.length == 11)
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112 throw new Exception("Sorry, errors only support up to 10 args");
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113 args ~= s;
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114 return this;
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115 }
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116
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117 Message arg(char[][] s)
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118 {
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119 char[] res = s[0 .. $ - 1].join(", ");
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120 if (s.length > 1)
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121 res ~= " and ";
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122 res ~= s[$ - 1];
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123 return arg(res);
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124 }
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125
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126 Message arg(char c)
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127 {
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128 return arg([c]);
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129 }
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130
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131 Message arg(DType[] types)
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132 {
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133 char[][] res;
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134 foreach (type; types)
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135 res ~= type.name();
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136 return arg(res);
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137 }
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138
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139 Message arg(Symbol sym)
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140 {
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141 return arg(sym.type.name ~ " " ~ sym.id.get);
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142 }
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143
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144 /*
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145 Message loc(SLoc loc)
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146 {
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147 location = loc;
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148 return this;
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149 }
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150 */
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151
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152 MessageType type;
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153 private:
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154 char[][] args;
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155 SLoc location;
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156 SourceManager src_mgr;
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157 }