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annotate compiler.js @ 24:fe3533494ce9

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Display symbols order first by depth. Eliminate extraneous setter symbols
author Mike Pavone <pavone@retrodev.com>
date Tue, 27 Mar 2012 00:39:32 -0700
parents 068d63627b16
children 4d87c38404d6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 osymbols.prototype.allSymbols = function(curlist, cursyms) {
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49 if (curlist === undefined) {
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50 curlist = [];
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51 cursyms = {};
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52 }
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53 var keys = Object.keys(this.names).sort();
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54 for (var i in keys) {
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55 if (!(keys[i] in cursyms)) {
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56 curlist.push(keys[i]);
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57 cursyms[keys[i]] = true;
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58 }
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59 }
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60 if (this.parent) {
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61 return this.parent.allSymbols(curlist, cursyms);
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62 }
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63 return curlist;
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64 }
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65
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66 function lsymbols(parent)
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67 {
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68 this.parent = parent;
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69 this.names = {};
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70 this.lastname = null;
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71 this.needsSelfVar = false;
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72 }
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73 lsymbols.prototype.find = function(name) {
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74 if (name in this.names) {
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75 if (this.names[name] instanceof funcall && this.names[name].name == 'foreign:') {
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76 return {
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77 type: 'foreign',
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78 def: this.names[name]
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79 };
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80 }
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81 return {
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82 type: 'local',
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83 def: this.names[name]
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84 };
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85 } else if(this.parent) {
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86 var ret = this.parent.find(name);
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87 if (ret && ret.type == 'local') {
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88 ret.type = 'upvar';
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89 }
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90 return ret;
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91 }
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92 return null;
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93 };
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94 lsymbols.prototype.defineVar = function(name, def) {
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95 this.lastname = name;
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96 this.names[name] = def;
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97 };
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98 lsymbols.prototype.selfVar = function() {
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99 if (this.parent && this.parent instanceof lsymbols) {
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100 this.parent.needsSelf();
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101 return 'self';
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102 } else {
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103 return 'this';
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104 }
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105 };
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106 lsymbols.prototype.needsSelf = function() {
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107 if (this.parent && this.parent instanceof lsymbols) {
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108 this.parent.needsSelf();
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109 } else {
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110 this.needsSelfVar = true;
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111 }
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112 };
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113 lsymbols.prototype.allSymbols = osymbols.prototype.allSymbols;
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114
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115 var mainModule;
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116
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117 function toobj(val)
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118 {
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119 switch(typeof val)
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120 {
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121 case 'boolean':
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122 if(val) {
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123 return mainModule.strue;
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124 } else {
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125 return mainModule.sfalse;
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126 }
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127 case 'number':
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128 return mainModule.snumber(val);
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129 }
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130 throw new Error("can't make val into object");
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131 }
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132
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133 function setP(o, p, val)
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134 {
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135 o[p] = val;
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136 return o;
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137 }
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138
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139 function getP(o, p)
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140 {
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141 return o[p];
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142 }
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143
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144 op.prototype.populateSymbols = function(symbols, isReceiver) {
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145 this.left.populateSymbols(symbols);
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146 this.right.populateSymbols(symbols);
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147 };
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148
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149 symbol.prototype.populateSymbols = function(symbols) {
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150 this.symbols = symbols;
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151 }
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152
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153 intlit.prototype.populateSymbols = function(symbols) {
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154 }
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155
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156 floatlit.prototype.populateSymbols = function(symbols) {
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157 }
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158
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159 strlit.prototype.populateSymbols = function(symbols) {
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160 }
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161
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162 funcall.prototype.populateSymbols = function(symbols) {
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163 if(this.name == 'q:') { console.log('populateSymbols', this); }
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164 if (this.name == 'foreign:') {
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165 if ((this.args[0] instanceof lambda) || (this.args[0] instanceof object) || (this.args[0] instanceof symbol)) {
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166 return;
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167 } else {
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168 throw new Error("Unexpected AST type for foreign:");
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169 }
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170 }
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171 this.symbols = symbols;
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172 for (var i in this.args) {
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173 this.args[i].populateSymbols(symbols);
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174 }
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175 if (this.receiver) {
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176 this.receiver.populateSymbols(symbols);
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177 }
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178 }
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179
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180 object.prototype.populateSymbols = function(symbols) {
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181 symbols = new osymbols(symbols);
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182 for (var i in this.messages) {
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183 this.messages[i].populateSymbolsObject(symbols);
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184 }
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185 this.symbols = symbols;
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186 }
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187
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188 lambda.prototype.populateSymbols = function(symbols) {
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189 var args = this.args ? this.args.slice(0, this.args.length) : [];
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190 if (args.length && args[0].cleanName() == 'self') {
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191 args.splice(0, 1);
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192 }
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193 var exprs = this.expressions;
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194 symbols = new lsymbols(symbols);
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195 for (var i in args) {
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196 symbols.defineVar(args[i].cleanName(), null);
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197 args[i].populateSymbols(symbols);
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198 }
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199 for (var i in exprs) {
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200 exprs[i].populateSymbols(symbols);
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201 }
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202 this.symbols = symbols;
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203 };
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204
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205 assignment.prototype.populateSymbols = function(symbols) {
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206 var existing = symbols.find(this.symbol.name);
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207 if (!existing) {
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208 symbols.defineVar(this.symbol.name, this.expression);
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209 }
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210 this.symbol.populateSymbols(symbols);
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211 this.expression.populateSymbols(symbols);
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212 this.symbols = symbols;
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213 };
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214 assignment.prototype.populateSymbolsObject = function(symbols) {
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215 symbols.defineMsg(this.symbol.name, this.expression);
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216 if (!(this.expression instanceof lambda) && !(this.expression instanceof funcall && this.expression.name == 'foreign:')) {
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217 symbols.defineMsg(this.symbol.name + '!', new setter(null));
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218 }
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219 this.symbol.populateSymbols(symbols);
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220 this.expression.populateSymbols(symbols);
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221 this.symbols = symbols;
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222 };
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223
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224 function setter(fun)
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225 {
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226 this.fun = fun;
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227 }
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228
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229 function getter(fun)
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230 {
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231 this.fun = fun;
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232 }
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233