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annotate compiler.js @ 20:bf03c9f0dd55

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Initial work on proper property support
author Mike Pavone <pavone@retrodev.com>
date Sun, 25 Mar 2012 16:52:11 -0700
parents 59e83296e331
children 068d63627b16
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1 function indent(str)
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2 {
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3 return str.split('\n').join('\n\t');
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4 }
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5
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6 function osymbols(parent)
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7 {
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8 this.parent = parent;
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9 this.names = {};
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10 this.lastname = null;
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11 }
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12 osymbols.prototype.find = function(name) {
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13 if (name in this.names) {
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14 if (this.names[name] instanceof funcall && this.names[name].name == 'foreign:') {
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15 return {
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16 type: 'foreign',
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17 def: this.names[name]
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18 };
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19 }
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20 return {
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21 type: 'self',
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22 def: this.names[name],
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23 };
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24 } else if(this.parent) {
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25 var ret = this.parent.find(name);
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26 if (ret) {
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27 if(ret.type == 'self') {
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28 ret.type = 'parent';
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29 ret.depth = 1;
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30 } else if(ret.type == 'parent') {
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31 ret.depth++;
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32 }
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33 }
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34 return ret;
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35 }
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36 return null;
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37 };
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38 osymbols.prototype.defineMsg = function(name, def) {
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39 this.lastname = name;
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40 this.names[name] = def;
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41 }
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42 osymbols.prototype.parentObject = function() {
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43 if (!this.parent) {
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44 return 'null';
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45 }
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46 return 'this';
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47 }
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48
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49 function lsymbols(parent)
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50 {
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51 this.parent = parent;
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52 this.names = {};
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53 this.lastname = null;
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54 this.needsSelfVar = false;
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55 }
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56 lsymbols.prototype.find = function(name) {
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57 if (name in this.names) {
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58 if (this.names[name] instanceof funcall && this.names[name].name == 'foreign:') {
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59 return {
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60 type: 'foreign',
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61 def: this.names[name]
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62 };
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63 }
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64 return {
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65 type: 'local',
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66 def: this.names[name]
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67 };
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68 } else if(this.parent) {
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69 var ret = this.parent.find(name);
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70 if (ret && ret.type == 'local') {
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71 ret.type = 'upvar';
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72 }
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73 return ret;
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74 }
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75 return null;
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76 };
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77 lsymbols.prototype.defineVar = function(name, def) {
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78 this.lastname = name;
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79 this.names[name] = def;
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80 };
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81 lsymbols.prototype.selfVar = function() {
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82 if (this.parent && this.parent instanceof lsymbols) {
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83 this.parent.needsSelf();
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84 return 'self';
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85 } else {
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86 return 'this';
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87 }
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88 };
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89 lsymbols.prototype.needsSelf = function() {
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90 if (this.parent && this.parent instanceof lsymbols) {
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91 this.parent.needsSelf();
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92 } else {
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93 this.needsSelfVar = true;
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94 }
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95 };
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96
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97 var mainModule;
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98
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99 function toobj(val)
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100 {
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101 switch(typeof val)
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102 {
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103 case 'boolean':
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104 if(val) {
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105 return mainModule.strue;
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106 } else {
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107 return mainModule.sfalse;
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108 }
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109 case 'number':
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110 return mainModule.snumber(val);
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111 }
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112 throw new Error("can't make val into object");
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113 }
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114
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115 function setP(o, p, val)
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116 {
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117 o[p] = val;
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118 return o;
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119 }
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120
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121 function getP(o, p)
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122 {
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123 return o[p];
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124 }
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125
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126 op.prototype.populateSymbols = function(symbols, isReceiver) {
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127 this.left.populateSymbols(symbols);
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128 this.right.populateSymbols(symbols);
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129 };
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130
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131 symbol.prototype.populateSymbols = function(symbols) {
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132 this.symbols = symbols;
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133 }
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134
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135 intlit.prototype.populateSymbols = function(symbols) {
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136 }
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137
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138 floatlit.prototype.populateSymbols = function(symbols) {
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139 }
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140
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141 strlit.prototype.populateSymbols = function(symbols) {
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142 }
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143
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144 funcall.prototype.populateSymbols = function(symbols) {
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145 if(this.name == 'q:') { console.log('populateSymbols', this); }
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146 if (this.name == 'foreign:') {
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147 if ((this.args[0] instanceof lambda) || (this.args[0] instanceof object) || (this.args[0] instanceof symbol)) {
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148 return;
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149 } else {
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150 throw new Error("Unexpected AST type for foreign:");
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151 }
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152 }
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153 this.symbols = symbols;
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154 for (var i in this.args) {
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155 this.args[i].populateSymbols(symbols);
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156 }
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157 if (this.receiver) {
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158 this.receiver.populateSymbols(symbols);
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159 }
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160 }
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161
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162 object.prototype.populateSymbols = function(symbols) {
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163 symbols = new osymbols(symbols);
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164 for (var i in this.messages) {
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165 this.messages[i].populateSymbolsObject(symbols);
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166 }
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167 this.symbols = symbols;
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168 }
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169
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170 lambda.prototype.populateSymbols = function(symbols) {
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171 var args = this.args ? this.args.slice(0, this.args.length) : [];
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172 if (args.length && args[0].cleanName() == 'self') {
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173 args.splice(0, 1);
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174 }
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175 var exprs = this.expressions;
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176 symbols = new lsymbols(symbols);
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177 for (var i in args) {
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178 symbols.defineVar(args[i].cleanName(), null);
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179 args[i].populateSymbols(symbols);
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180 }
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181 for (var i in exprs) {
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182 exprs[i].populateSymbols(symbols);
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183 }
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184 this.symbols = symbols;
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185 };
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186
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187 assignment.prototype.populateSymbols = function(symbols) {
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188 var existing = symbols.find(this.symbol.name);
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189 if (!existing) {
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190 symbols.defineVar(this.symbol.name, this.expression);
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191 }
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192 this.symbol.populateSymbols(symbols);
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193 this.expression.populateSymbols(symbols);
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194 this.symbols = symbols;
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195 };
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196 assignment.prototype.populateSymbolsObject = function(symbols) {
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197 console.log('populateSymbolsObject for assignment to ' + this.symbol.name)
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198 symbols.defineMsg(this.symbol.name, this.expression);
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199 if (!(this.expression instanceof lambda)) {
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200 symbols.defineMsg(this.symbol.name + '!', new setter(null));
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201 }
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202 this.symbol.populateSymbols(symbols);
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203 this.expression.populateSymbols(symbols);
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204 this.symbols = symbols;
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205 };
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206
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207 function setter(fun)
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208 {
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209 this.fun = fun;
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210 }
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211
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212 function getter(fun)
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213 {
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214 this.fun = fun;
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215 }
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216