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annotate compiler.js @ 54:976a0924e1d4

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Fix closure over self var
author Mike Pavone <pavone@retrodev.com>
date Fri, 13 Jul 2012 19:22:39 -0700
parents 18ab96287c3a
children 93ddb4ad6fcb
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54
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1 var debugprint = function() {};
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2
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3 function indent(str)
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4 {
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5 return str.split('\n').join('\n\t');
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6 }
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7
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8 function modulefile(path, file)
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9 {
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10 this.path = path;
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11 this.file = file;
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12 }
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13
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14 var toplevel = new topsymbols();
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15 function topsymbols(moduledirs)
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16 {
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17 this.names = null;
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18 this.used = {};
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19 var self = this;
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20 if (typeof window === "object") {
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21 get('/src/', function(data) {
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22 self.names = {};
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23 var fakeEl = newEl("div", {
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24 innerHTML: data.response
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25 });
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26 each(qall('a', fakeEl), function(idx, a) {
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27 var tpidx = a.textContent.indexOf('.tp');
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28 if (tpidx > -1) {
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29 self.names[a.textContent.substr(0, tpidx)] = true;
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30 }
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31 });
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32 });
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33 } else {
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34 this.names = {};
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35 for (var dirnum in moduledirs) {
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36 var results = os.system("ls", [moduledirs[dirnum]]).split('\n');
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37 for (var i in results) {
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38 var tpidx = results[i].indexOf('.tp')
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39 if (tpidx > -1) {
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40 this.names[results[i].substr(0, tpidx)] = new modulefile(moduledirs[dirnum], results[i]);
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41 }
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42 }
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43 }
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44 }
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45 }
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46 topsymbols.prototype.find = function(name) {
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47 debugprint('//topsymbols.find', name, name in this.names);
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48 if (!this.names) {
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49 throw new Error('data not ready');
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50 }
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51 if (name in this.names) {
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52 this.used[name] = true;
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53 return {
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54 type: 'toplevel',
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55 def: this.names[name]
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56 };
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57 }
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58 return null;
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59 }
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60 topsymbols.prototype.getEnvType = function() {
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61 return 'void';
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62 }
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63
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64 function osymbols(parent)
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65 {
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66 this.parent = parent;
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67 this.names = {};
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68 this.needsenv = false;
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69 }
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70 osymbols.prototype.find = function(name, nestedcall) {
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71 debugprint('//osymbols.find', name + ', exists?:', name in this.names, ', nested?:', nestedcall);
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72 if (name in this.names) {
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73 if (this.names[name] instanceof funcall && this.names[name].name == 'foreign:') {
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74 return {
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75 type: 'foreign',
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76 def: this.names[name]
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77 };
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78 }
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79 var ret = {
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80 type: 'self',
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81 def: this.names[name],
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82 };
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83 } else if(this.parent) {
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84 var ret = this.parent.find(name, nestedcall);
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85 if (ret) {
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86 if(ret.type == 'self') {
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87 ret.type = 'parent';
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88 ret.depth = 1;
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89 } else if(ret.type == 'parent') {
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90 ret.depth++;
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91 } else if(ret.type == 'closedover' || ret.type == 'upvar') {
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92 this.needsenv = true;
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93 }
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94 }
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95 } else {
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96 return null;
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97 }
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98 debugprint('\t//symbol type:', ret ? ret.type : 'null');
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99 return ret;
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100 };
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101 osymbols.prototype.defineMsg = function(name, def) {
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102 this.names[name] = def;
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103 }
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104 osymbols.prototype.parentObject = function() {
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105 if (!this.parent) {
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106 return 'null';
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107 }
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108 return 'this';
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109 }
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110 osymbols.prototype.allSymbols = function(curlist, cursyms) {
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111 if (curlist === undefined) {
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112 curlist = [];
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113 cursyms = {};
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114 }
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115 var keys = Object.keys(this.names).sort();
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116 for (var i in keys) {
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117 if (!(keys[i] in cursyms)) {
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118 curlist.push(keys[i]);
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119 cursyms[keys[i]] = true;
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120 }
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121 }
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122 if (this.parent) {
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123 return this.parent.allSymbols(curlist, cursyms);
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124 }
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125 return curlist;
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126 }
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127 osymbols.prototype.getEnvType = function() {
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128 return this.parent.getEnvType();
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129 }
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130 osymbols.prototype.envVar = function() {
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131 return this.parent.envVar();
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132 }
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133
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134 function lsymbols(parent)
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135 {
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136 this.parent = parent;
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137 this.names = {};
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138 this.closedover = {};
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139 this.declared = {};
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140 this.needsSelfVar = false;
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141 this.passthruenv = false;
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142 this.envtype = 'void';
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143 }
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144 lsymbols.prototype.find = function(name, nestedcall) {
54
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145 debugprint('//lsymbols.find', name + ', exists?:', name in this.names, ', nested?:', nestedcall);
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146 if (name in this.names) {
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147 if (this.names[name] instanceof funcall && this.names[name].name == 'foreign:') {
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148 var ret = {
8
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149 type: 'foreign',
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150 def: this.names[name]
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151 };
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152 } else {
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153 if (nestedcall) {
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154 this.closedover[name] = true;
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155 }
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156 if (name in this.closedover) {
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157 var ret = {
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158 type: 'closedover',
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159 def: this.names[name]
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160 };
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161 } else {
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162 var ret = {
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163 type: 'local',
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164 def: this.names[name],
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165 isdeclared: (name in this.declared)
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166 };
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167 }
8
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168 }
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169 } else if(this.parent) {
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170 var ret = this.parent.find(name, true);
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171 if (ret) {
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172 if (ret.type == 'closedover') {
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173 ret.type = 'upvar';
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174 ret.depth = 1;
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175 } else if (ret.type == 'upvar') {
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176 if (Object(this.closedover).keys.length) {
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177 ret.depth++;
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178 } else {
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179 this.passthruenv = true;
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180 }
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181 }
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182 }
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183 } else {
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184 return null;
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185 }
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186 debugprint('\t//symbol type:', ret ? ret.type : 'null');
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187 return ret;
8
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188 };
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189 lsymbols.prototype.defineVar = function(name, def) {
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190 this.names[name] = def;
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191 };
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192 lsymbols.prototype.declareVar = function(name) {
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193 this.declared[name] = true;
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194 }
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195 lsymbols.prototype.selfVar = function() {
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196 if (this.parent && this.parent instanceof lsymbols) {
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197 this.parent.needsSelf();
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198 return 'self';
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199 } else {
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200 return 'this';
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201 }
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202 };
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203 lsymbols.prototype.needsSelf = function() {
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204 if (this.parent && this.parent instanceof lsymbols) {
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205 this.parent.needsSelf();
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206 } else {
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207 this.needsSelfVar = true;
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208 }
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209 };
23
068d63627b16 Populate in scope symbol buttons when clicking on a symbol in the source
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210 lsymbols.prototype.allSymbols = osymbols.prototype.allSymbols;
34
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211 lsymbols.prototype.parentEnvType = function() {
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212 if (!this.parent) {
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213 return 'void';
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214 }
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215 return this.parent.getEnvType();
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216 };
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217 lsymbols.prototype.getEnvType = function() {
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218 if (this.passthruenv) {
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219 return this.parent.getEnvType();
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220 } else {
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221 return this.envtype;
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222 }
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223 }
42
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224 lsymbols.prototype.envVar = function() {
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225 if (Object.keys(this.closedover).length) {
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226 return 'myenv';
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227 } else if(this.passthruenv) {
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228 return 'env';
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229 }
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230 return null;
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diff changeset
231 }
8
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232
16
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233 var mainModule;
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234
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235 function toobj(val)
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236 {
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237 switch(typeof val)
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238 {
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239 case 'boolean':
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240 if(val) {
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241 return mainModule.strue;
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242 } else {
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243 return mainModule.sfalse;
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244 }
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245 case 'number':
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246 return mainModule.snumber(val);
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247 }
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248 throw new Error("can't make val into object");
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249 }
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250
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251 op.prototype.populateSymbols = function(symbols, isReceiver) {
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252 this.left.populateSymbols(symbols);
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253 this.right.populateSymbols(symbols);
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254 };
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255
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256 symbol.prototype.populateSymbols = function(symbols) {
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257 this.symbols = symbols;
54
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258 var ret = symbols.find(this.cleanName());
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259 if (ret.type == 'self') {
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260 symbols.find('self');
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261 }
16
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262 }
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263
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diff changeset
264 intlit.prototype.populateSymbols = function(symbols) {
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diff changeset
265 }
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266
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diff changeset
267 floatlit.prototype.populateSymbols = function(symbols) {
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268 }
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269
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diff changeset
270 strlit.prototype.populateSymbols = function(symbols) {
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271 }
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272
25
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diff changeset
273 listlit.prototype.populateSymbols = function(symbols) {
38
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274 for (var i = 0; i < this.val.length; i++) {
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diff changeset
275 this.val[i].populateSymbols(symbols);
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276 }
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277 }
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278
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279 arraylit.prototype.populateSymbols = function(symbols) {
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280 for (var i = 0; i < this.val.length; i++) {
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281 this.val[i].populateSymbols(symbols);
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282 }
25
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283 }
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284
16
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285 funcall.prototype.populateSymbols = function(symbols) {
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286 if (this.name == 'foreign:') {
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287 if ((this.args[0] instanceof lambda) || (this.args[0] instanceof object) || (this.args[0] instanceof symbol)) {
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diff changeset
288 return;
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289 } else {
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290 throw new Error("Unexpected AST type for foreign:");
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291 }
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292 }
20
bf03c9f0dd55 Initial work on proper property support
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diff changeset
293 this.symbols = symbols;
16
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diff changeset
294 for (var i in this.args) {
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diff changeset
295 this.args[i].populateSymbols(symbols);
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296 }
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297 if (this.receiver) {
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298 this.receiver.populateSymbols(symbols);
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299 }
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300 }
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301
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302 funcall.prototype.populateSymbolsObject = function(symbols) {
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303 this.populateSymbols(symbols.parent);
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304 }
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305
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306 object.prototype.populateSymbols = function(symbols) {
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307 symbols = new osymbols(symbols);
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308 for (var i in this.messages) {
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309 this.messages[i].populateSymbolsObject(symbols);
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310 }
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311 this.symbols = symbols;
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312 }
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313
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314 lambda.prototype.populateSymbols = function(symbols, isobject) {
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315 var args = this.args ? this.args.slice(0, this.args.length) : [];
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316 var exprs = this.expressions;
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317 var symbols = new lsymbols(symbols);
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318 for (var i in args) {
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319 symbols.defineVar(args[i].cleanName(), null);
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320 args[i].populateSymbols(symbols);
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321 }
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322 if (isobject && (!args.length || args[0].cleanName() != 'self')) {
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323 symbols.defineVar('self', null);
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324 }
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325 for (var i in exprs) {
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326 exprs[i].populateSymbols(symbols);
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327 }
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328 this.symbols = symbols;
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329 };
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330
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331 assignment.prototype.populateSymbols = function(symbols) {
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332 var existing = symbols.find(this.symbol.name);
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333 if (!existing) {
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334 symbols.defineVar(this.symbol.name, this.expression);
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335 }
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336 this.symbol.populateSymbols(symbols);
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337 this.expression.populateSymbols(symbols);
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338 this.symbols = symbols;
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339 };
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340 assignment.prototype.populateSymbolsObject = function(symbols) {
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341 if (this.expression instanceof lambda || (this.expression instanceof funcall & this.expression.name == 'foreign:')) {
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342 symbols.defineMsg(this.symbol.name, this.expression);
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343 } else {
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344 symbols.defineMsg(this.symbol.name, new getter(null));
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345 symbols.defineMsg(this.symbol.name + '!', new setter(null));
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346 }
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347 this.symbol.populateSymbols(symbols);
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348 this.expression.populateSymbols(symbols, true);
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349 this.symbols = symbols;
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350 };
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351
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352 function setter(fun)
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353 {
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354 this.fun = fun;
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355 }
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356 setter.prototype.args = [new symbol('self'), new symbol('newval')];
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357 function getter(fun)
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358 {
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359 this.fun = fun;
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360 }
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361 getter.prototype.args = [new symbol('self')];