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annotate compiler.js @ 36:3b0503a67165

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Add scripts for building programs via C using d8 rather than a browser
author Mike Pavone <pavone@retrodev.com>
date Tue, 10 Jul 2012 19:22:19 -0700
parents bf5e88f6419d
children e7be612fd3ae
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
8
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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 var toplevel = new topsymbols();
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7 function topsymbols()
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8 {
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9 this.names = null;
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10 var self = this;
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11 if (typeof window === "object") {
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12 get('/src/', function(data) {
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13 self.names = {};
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14 var fakeEl = newEl("div", {
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15 innerHTML: data.response
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16 });
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17 each(qall('a', fakeEl), function(idx, a) {
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18 var tpidx = a.textContent.indexOf('.tp');
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19 if (tpidx > -1) {
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20 self.names[a.textContent.substr(0, tpidx)] = true;
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21 }
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22 });
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23 });
36
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24 } else {
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25 this.names = {};
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26 }
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27 }
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28 topsymbols.prototype.find = function(name) {
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29 if (!this.names) {
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30 throw new Error('data not ready');
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31 }
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32 if (name in this.names) {
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33 return {
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34 type: 'toplevel',
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35 def: null
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36 };
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37 }
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38 return null;
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39 }
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40 topsymbols.prototype.getEnvType = function() {
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41 return 'void';
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42 }
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43
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44 function osymbols(parent)
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45 {
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46 this.parent = parent;
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47 this.names = {};
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48 }
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49 osymbols.prototype.find = function(name) {
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50 if (name in this.names) {
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51 if (this.names[name] instanceof funcall && this.names[name].name == 'foreign:') {
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52 return {
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53 type: 'foreign',
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54 def: this.names[name]
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55 };
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56 }
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57 return {
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58 type: 'self',
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59 def: this.names[name],
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60 };
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61 } else if(this.parent) {
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62 var ret = this.parent.find(name);
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63 if (ret) {
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64 if(ret.type == 'self') {
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65 ret.type = 'parent';
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66 ret.depth = 1;
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67 } else if(ret.type == 'parent') {
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68 ret.depth++;
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69 }
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70 }
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71 return ret;
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72 }
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73 return null;
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74 };
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75 osymbols.prototype.defineMsg = function(name, def) {
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76 this.names[name] = def;
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77 }
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78 osymbols.prototype.parentObject = function() {
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79 if (!this.parent) {
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80 return 'null';
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81 }
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82 return 'this';
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83 }
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84 osymbols.prototype.allSymbols = function(curlist, cursyms) {
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85 if (curlist === undefined) {
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86 curlist = [];
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87 cursyms = {};
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88 }
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89 var keys = Object.keys(this.names).sort();
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90 for (var i in keys) {
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91 if (!(keys[i] in cursyms)) {
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92 curlist.push(keys[i]);
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93 cursyms[keys[i]] = true;
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94 }
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95 }
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96 if (this.parent) {
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97 return this.parent.allSymbols(curlist, cursyms);
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98 }
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99 return curlist;
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100 }
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101 osymbols.prototype.getEnvType = function() {
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102 return this.parent.getEnvType();
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103 }
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104
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105 function lsymbols(parent)
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106 {
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107 this.parent = parent;
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108 this.names = {};
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109 this.closedover = {};
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110 this.needsSelfVar = false;
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111 this.passthruenv = false;
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112 this.envtype = 'void';
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113 }
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114 lsymbols.prototype.find = function(name, nestedcall) {
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115 if (name in this.names) {
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116 if (this.names[name] instanceof funcall && this.names[name].name == 'foreign:') {
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117 return {
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118 type: 'foreign',
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119 def: this.names[name]
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120 };
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121 }
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122 if (nestedcall) {
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123 this.closedover[name] = true;
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124 }
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125 if (name in this.closedover) {
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126 return {
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127 type: 'closedover',
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128 def: this.names[name]
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129 };
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130 }
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131 return {
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132 type: 'local',
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133 def: this.names[name]
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134 };
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135 } else if(this.parent) {
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136 var ret = this.parent.find(name, true);
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137 if (ret) {
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138 if (ret.type == 'closedover') {
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139 ret.type = 'upvar';
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140 ret.depth = 1;
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141 } else if (ret.type == 'upvar') {
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142 if (Object(this.closedover).keys.length) {
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143 ret.depth++;
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144 } else {
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145 this.passthruenv = true;
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146 }
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147 }
8
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148 }
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149 return ret;
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150 }
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151 return null;
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152 };
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153 lsymbols.prototype.defineVar = function(name, def) {
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154 this.names[name] = def;
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155 };
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156 lsymbols.prototype.selfVar = function() {
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157 if (this.parent && this.parent instanceof lsymbols) {
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158 this.parent.needsSelf();
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159 return 'self';
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160 } else {
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161 return 'this';
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162 }
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163 };
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164 lsymbols.prototype.needsSelf = function() {
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165 if (this.parent && this.parent instanceof lsymbols) {
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166 this.parent.needsSelf();
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167 } else {
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168 this.needsSelfVar = true;
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169 }
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170 };
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171 lsymbols.prototype.allSymbols = osymbols.prototype.allSymbols;
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172 lsymbols.prototype.parentEnvType = function() {
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173 if (!this.parent) {
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174 return 'void';
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175 }
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176 return this.parent.getEnvType();
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177 };
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178 lsymbols.prototype.getEnvType = function() {
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179 if (this.passthruenv) {
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180 return this.parent.getEnvType();
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181 } else {
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182 return this.envtype;
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183 }
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184 }
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185
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186 var mainModule;
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187
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188 function toobj(val)
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189 {
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190 switch(typeof val)
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191 {
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192 case 'boolean':
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193 if(val) {
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194 return mainModule.strue;
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195 } else {
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196 return mainModule.sfalse;
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197 }
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198 case 'number':
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199 return mainModule.snumber(val);
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200 }
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201 throw new Error("can't make val into object");
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202 }
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203
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204 op.prototype.populateSymbols = function(symbols, isReceiver) {
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205 this.left.populateSymbols(symbols);
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206 this.right.populateSymbols(symbols);
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207 };
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208
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209 symbol.prototype.populateSymbols = function(symbols) {
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210 this.symbols = symbols;
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211 symbols.find(this.cleanName());
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212 }
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213
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214 intlit.prototype.populateSymbols = function(symbols) {
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215 }
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216
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217 floatlit.prototype.populateSymbols = function(symbols) {
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218 }
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219
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220 strlit.prototype.populateSymbols = function(symbols) {
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221 }
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222
25
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223 listlit.prototype.populateSymbols = function(symbols) {
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224 each(this.val, function(i,el) {
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225 el.populateSymbols(symbols);
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226 });
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227 }
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228
16
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229 funcall.prototype.populateSymbols = function(symbols) {
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230 if (this.name == 'foreign:') {
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231 if ((this.args[0] instanceof lambda) || (this.args[0] instanceof object) || (this.args[0] instanceof symbol)) {
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232 return;
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233 } else {
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234 throw new Error("Unexpected AST type for foreign:");
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235 }
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236 }
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237 this.symbols = symbols;
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238 for (var i in this.args) {
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239 this.args[i].populateSymbols(symbols);
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240 }
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241 if (this.receiver) {
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242 this.receiver.populateSymbols(symbols);
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243 }
16
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244 }
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245
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246 funcall.prototype.populateSymbolsObject = function(symbols) {
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247 this.populateSymbols(symbols.parent);
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248 }
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249
16
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250 object.prototype.populateSymbols = function(symbols) {
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251 symbols = new osymbols(symbols);
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252 for (var i in this.messages) {
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253 this.messages[i].populateSymbolsObject(symbols);
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254 }
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255 this.symbols = symbols;
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256 }
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257
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258 lambda.prototype.populateSymbols = function(symbols) {
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259 var args = this.args ? this.args.slice(0, this.args.length) : [];
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260 if (args.length && args[0].cleanName() == 'self') {
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261 args.splice(0, 1);
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262 }
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263 var exprs = this.expressions;
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264 symbols = new lsymbols(symbols);
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265 for (var i in args) {
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266 symbols.defineVar(args[i].cleanName(), null);
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267 args[i].populateSymbols(symbols);
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268 }
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269 for (var i in exprs) {
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270 exprs[i].populateSymbols(symbols);
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271 }
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272 this.symbols = symbols;
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273 };
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274
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275 assignment.prototype.populateSymbols = function(symbols) {
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276 var existing = symbols.find(this.symbol.name);
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277 if (!existing) {
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278 symbols.defineVar(this.symbol.name, this.expression);
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279 }
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280 this.symbol.populateSymbols(symbols);
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281 this.expression.populateSymbols(symbols);
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282 this.symbols = symbols;
16
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283 };
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284 assignment.prototype.populateSymbolsObject = function(symbols) {
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285 if (this.expression instanceof lambda || (this.expression instanceof funcall & this.expression.name == 'foreign:')) {
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286 symbols.defineMsg(this.symbol.name, this.expression);
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287 } else {
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288 symbols.defineMsg(this.symbol.name, new getter(null));
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289 symbols.defineMsg(this.symbol.name + '!', new setter(null));
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290 }
16
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291 this.symbol.populateSymbols(symbols);
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292 this.expression.populateSymbols(symbols);
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293 this.symbols = symbols;
16
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294 };
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295
20
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296 function setter(fun)
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297 {
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298 this.fun = fun;
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299 }
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300 setter.prototype.args = [new symbol('self'), new symbol('newval')];
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301 function getter(fun)
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302 {
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303 this.fun = fun;
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304 }
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parents: 25
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305 getter.prototype.args = [new symbol('self')];