Mercurial > repos > tabletprog
annotate cbackend.js @ 92:6abbf2454657
merge
author | William Morgan <bill@mrgn.org> |
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date | Mon, 23 Jul 2012 01:07:52 -0700 |
parents | 25bc8a5ab41e |
children | f23ecd4e22af |
rev | line source |
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1 var mainModule; |
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2 var modules = {}; |
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3 |
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4 var nextmethodId = 0; |
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5 var methodIds = {}; |
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6 function getMethodId(methodName) |
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7 { |
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8 if (!(methodName in methodIds)) { |
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9 methodIds[methodName] = nextmethodId++; |
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10 |
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11 } |
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12 return methodIds[methodName]; |
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13 } |
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14 |
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15 function importSym(obj, src, key) |
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16 { |
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17 if(!(key in src)) { |
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18 throw new Error(key +' not found in source object for import'); |
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19 } |
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20 if(key in obj) { |
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21 throw new Error(key +' already exists in target object for import') |
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22 } |
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23 obj[key] = src[key]; |
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24 } |
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25 |
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26 function doImport(obj, src, symlist) |
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27 { |
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28 if (symlist === undefined) { |
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29 each(src, function(key,val) { |
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30 if (key != 'parent') { |
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31 importSym(obj, src, key); |
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32 } |
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33 }); |
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34 } else { |
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35 for (var i = 0; i < symlist.length; ++i) { |
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36 importSym(obj, src, symlist[i]); |
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37 } |
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38 } |
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39 return obj; |
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40 } |
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41 |
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42 op.prototype.toC = function(isReceiver) { |
67 | 43 var optoMeth = {'+': 'ADD_', '-': 'SUB_', '*': 'MUL_', '/': 'DIV_', '%': 'MOD_', '=': 'EQ_', '!=': 'NEQ_', '<': 'LT_', '>': 'GT_', '>=': 'GEQ_', '<=': 'LEQ_', '.': 'CAT_'}; |
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44 var method = optoMeth[this.op]; |
59 | 45 return 'mcall(' + getMethodId(method) + '/* ' + method + ' */, 2, (object *)' + this.left.toC() + ', ' + this.right.toC() + ')\n'; |
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46 }; |
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47 op.prototype.toCLLExpr = function(vars) { |
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48 var opmap = {'=': '==', 'xor': '^'}; |
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49 return this.left.toCLLExpr(vars) + (this.op in opmap ? opmap[this.op] : this.op) + this.right.toCLLExpr(vars); |
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50 }; |
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51 op.prototype.toCLines = function(vars, needsreturn) { |
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52 return [ (needsreturn ? 'return (object *)' : '' ) + this.toCLLExpr(vars) + ';']; |
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53 }; |
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54 |
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55 |
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56 function escapeCName(name) |
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57 { |
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58 if (name == 'self') { |
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59 return name; |
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60 } |
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61 name = name.replace("_", "UN_").replace(":", "CN_").replace("!", "EX_").replace('?', 'QS_').replace('@', 'AT_'); |
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62 name = 'tp_' + name; |
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63 return name; |
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64 } |
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65 |
54 | 66 function getSymbolPrefix(info, symbols) |
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67 { |
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68 var pre = ''; |
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69 switch(info.type) { |
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70 case 'self': |
54 | 71 |
72 pre = (new symbol('self', symbols)).toC() + '->'; | |
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73 break; |
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74 case 'parent': |
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75 pre = (new symbol('self', symbols)).toC() + '->header.'; |
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76 for (var i = 0; i < info.depth; ++i) { |
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77 pre += (i ? '->' : '') + 'parent'; |
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78 } |
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79 pre = '((' + info.selftype + ' *)' + pre + ')->'; |
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80 break; |
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81 case 'upvar': |
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82 pre = 'env->'; |
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83 for (var i = info.startdepth; i < info.depth; ++i) { |
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84 pre += 'parent->'; |
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85 } |
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86 break; |
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87 case 'recupvar': |
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88 if (info.subtype == 'object') { |
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89 pre = 'self->env->'; |
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90 } else { |
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91 //TODO: fill this case in if necessary |
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92 } |
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93 pre += getSymbolPrefix(info.parent); |
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94 case 'closedover': |
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95 pre = 'myenv->'; |
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96 } |
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97 return pre; |
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98 } |
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99 |
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100 symbol.prototype.toC = function() { |
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101 var name = this.cleanName(); |
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102 var info = this.symbols.find(name); |
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103 if (!info) { |
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104 throw new Error('symbol ' + name + ' not found'); |
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105 } |
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106 if (info.type == 'toplevel') { |
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107 return toplevel.moduleVar(name); |
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108 } else if (info.type == 'self' && info.def instanceof lambda) { |
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109 return 'mcall(' + getMethodId(name) + '/* ' + name + ' */, 1, ' + (new symbol('self', this.symbols)).toC() + ')'; |
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110 } else if (info.type == 'parent' && info.def instanceof lambda) { |
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111 var obj = (new symbol('self', this.symbols)).toC() + '->header.'; |
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112 for (var i = 0; i < info.depth; ++i) { |
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113 obj += (i ? '->' : '') + 'parent'; |
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114 } |
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115 return 'mcall(' + getMethodId(name) + '/* ' + name + ' */, 1, ' + obj + ')'; |
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116 } |
54 | 117 return getSymbolPrefix(info, this.symbols) + escapeCName(name); |
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118 } |
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119 symbol.prototype.toCTypeName = function() { |
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120 return this.cleanName(); |
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121 }; |
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122 symbol.prototype.toCLLExpr = function(vars) { |
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123 var name = this.cleanName(); |
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124 if (name in vars) { |
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125 return name; |
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126 } |
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127 if (name == 'self') { |
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128 return 'self'; |
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129 } |
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130 var info = this.symbols.find(name, false, true); |
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131 var symbols = this.symbols; |
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132 while (info && info.type == 'local') { |
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133 symbols = symbols.parent; |
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134 info = symbols.find(name, false, true); |
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135 } |
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136 if (!info) { |
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137 return name; |
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138 } |
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139 if (info.type == 'toplevel') { |
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140 return toplevel.moduleVar(name); |
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141 } else if (info.type == 'self') { |
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142 if (info.isll || !(info.def instanceof lambda)) { |
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143 return 'self->' + name; |
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144 } else { |
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145 return 'mcall(' + getMethodId(name) + '/* ' + name + ' */, 1, self)'; |
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146 } |
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147 } |
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148 throw new Error('Unsupported reference type ' + info.type + ' for variable ' + name); |
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149 }; |
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150 symbol.prototype.toCLines = function(vars, needsreturn) { |
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151 return [ (needsreturn ? 'return (object *)' : '' ) + this.toCLLExpr(vars) + ';' ]; |
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152 }; |
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153 |
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154 var declaredInts = {}; |
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155 |
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156 intlit.prototype.toC = function() { |
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157 var str = this.val < 0 ? 'neg_' + (0-this.val).toString() : this.val.toString(); |
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158 if (!(this.val in declaredInts)) { |
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159 toplevelcode += 'obj_int32 int32_' + str + ' = {{&obj_int32_meta, NULL}, ' + this.val.toString() + '};\n'; |
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160 declaredInts[this.val] = true; |
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161 } |
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162 return '((object *)&int32_' + str + ')'; |
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163 } |
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164 intlit.prototype.toCLLExpr = function(vars) { |
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165 return this.val.toString(); |
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166 }; |
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167 intlit.prototype.toCLines = function(vars, needsreturn) { |
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168 return [ (needsreturn ? 'return (object *)' : '' ) + this.toCLLExpr(vars) + ';' ]; |
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169 }; |
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170 |
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171 floatlit.prototype.toC = function() { |
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172 return 'make_float(' + this.val.toString() + ')'; |
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173 } |
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174 floatlit.prototype.toCLLExpr = function(vars) { |
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175 return this.val.toString(); |
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176 }; |
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177 floatlit.prototype.toCLines = function(vars, needsreturn) { |
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178 return [ (needsreturn ? 'return (object *)' : '' ) + this.toCLLExpr(vars) + ';' ]; |
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179 }; |
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180 |
41 | 181 var declaredStrings = {}; |
182 var nextStringId = 0; | |
183 | |
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184 strlit.prototype.toC = function() { |
41 | 185 if (!(this.val in declaredStrings)) { |
186 //TODO: get the proper byte length | |
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187 toplevelcode += 'string str_' + nextStringId + ' = {{&string_meta, NULL}, ' + this.val.length + ', ' + this.val.length + ', "' + this.val.replace('\\', '\\\\').replace('"', '\\"').replace('\n', '\\n').replace('\r', '\\r') + '"};\n'; |
41 | 188 declaredStrings[this.val] = nextStringId++; |
189 } | |
190 return '((object *)&str_' + declaredStrings[this.val] + ')'; | |
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191 }; |
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192 strlit.prototype.toCLLExpr = function(vars) { |
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193 return '"' + this.val.replace('\\', '\\\\').replace('"', '\\"').replace('\n', '\\n').replace('\r', '\\r') + '"'; |
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194 }; |
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195 strlit.prototype.toCLines = function(vars, needsreturn) { |
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196 return [ (needsreturn ? 'return (object *)' : '' ) + this.toCLLExpr(vars) +';' ]; |
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197 }; |
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198 |
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199 listlit.prototype.toC = function() { |
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200 var ret = 'make_list(' + this.val.length; |
38 | 201 for (var i = 0; i < this.val.length; i++) { |
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202 ret += ', ' + this.val[i].toC(); |
38 | 203 } |
204 return ret + ')'; | |
205 } | |
206 | |
207 arraylit.prototype.toC = function() { | |
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208 var ret = 'make_array(' + this.val.length; |
38 | 209 for (var i = 0; i < this.val.length; i++) { |
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210 ret += ', ' + this.val[i].toC(); |
38 | 211 } |
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212 return ret + ')'; |
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213 } |
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214 |
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215 funcall.prototype.toC = function() { |
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216 var name = this.name[this.name.length-1] == ':' ? this.name.substr(0, this.name.length-1) : this.name; |
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217 if (name == 'foreign') { |
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218 if ((this.args[0] instanceof lambda) || (this.args[0] instanceof object)) { |
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219 return null; |
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220 } else if(this.args[0] instanceof symbol) { |
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221 return this.args[0].name; |
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222 } else { |
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223 throw new Error("Unexpected AST type for foreign:"); |
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224 } |
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225 } else if(name == 'llProperty:withType' || name == 'llProperty:withVars:andCode') { |
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226 return null; |
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227 } |
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228 var args = this.args.slice(0, this.args.length); |
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229 if (this.receiver) { |
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230 args.splice(0, 0, this.receiver); |
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231 } |
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232 var method = false; |
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233 var funinfo = this.symbols.find(name); |
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234 var start = 0; |
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235 if (!funinfo || funinfo.def instanceof setter || funinfo.type == 'toplevel') { |
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236 method = true; |
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237 } else { |
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238 switch(funinfo.type) |
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239 { |
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240 case 'self': |
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241 case 'parent': |
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242 var defargs = funinfo.def.args.length; |
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243 if (!defargs || funinfo.def.args[0].name != 'self') { |
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244 defargs ++ |
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245 } |
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246 if (args.length < defargs) { |
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247 if (funinfo.type == 'self') { |
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248 args.splice(0, 0, new symbol('self', this.symbols)); |
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249 } else { |
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250 var obj = (new symbol('self', this.symbols)).toC() + '->header.'; |
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251 for (var i = 0; i < funinfo.depth; ++i) { |
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252 obj += (i ? '->' : '') + 'parent'; |
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253 } |
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254 args.splice(0, 0, ', ' + obj); |
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255 start = 1; |
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256 } |
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257 } |
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258 method = true; |
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259 break; |
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260 } |
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261 } |
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262 for (var i = start; i < args.length; i++) { |
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263 args[i] = ', ' + (!i && method ? '(object *)(' : '') + args[i].toC() + (!i && method ? ')' : ''); |
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264 } |
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265 var callpart; |
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266 if (method) { |
59 | 267 callpart = 'mcall(' + getMethodId(name) + '/* ' + name + ' */'; |
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268 } else { |
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269 callpart = 'ccall(' + (new symbol(name, this.symbols)).toC(); |
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270 } |
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271 return callpart + ', ' + args.length + args.join('') + ')'; |
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272 }; |
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273 funcall.prototype.toCTypeName = function() { |
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274 switch(this.name) |
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275 { |
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276 case 'ptr:': |
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277 case 'ptr': |
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278 var receiver = this.receiver ? this.receiver : this.args[0]; |
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279 return receiver.toCTypeName() + ' *'; |
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280 break; |
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281 default: |
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282 throw new Error('invalid use of funcall expression where a C type name is expected'); |
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283 } |
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284 }; |
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285 funcall.prototype.toCLines = function(vars, needsreturn) { |
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286 var lines = []; |
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287 var name = this.name[this.name.length-1] == ':' ? this.name.substr(0, this.name.length-1) : this.name; |
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288 var args = this.args.slice(0, this.args.length); |
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289 if (this.receiver) { |
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290 args.splice(0, 0, [this.receiver]); |
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291 } |
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292 switch(name) |
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293 { |
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294 case 'if': |
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295 lines.push('if (' + this.args[0].toCLLExpr(vars) + ') {'); |
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296 var blines = this.args[1].toCLines(vars, needsreturn); |
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297 for (var i in blines) { |
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298 lines.push('\t' + blines[i]); |
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299 } |
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300 if (needsreturn) { |
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301 lines.push('} else {'); |
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302 lines.push('\t return module_false;'); |
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303 lines.push('}'); |
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304 } else { |
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305 lines.push('}'); |
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306 } |
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307 break; |
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308 case 'if:else': |
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309 lines.push('if (' + this.args[0].toCLLExpr(vars) + ') {'); |
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310 var blines = this.args[1].toCLines(vars, needsreturn); |
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311 for (var i in blines) { |
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312 lines.push('\t' + blines[i]); |
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313 } |
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314 lines.push('} else {'); |
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315 blines = this.args[2].toCLines(vars, needsreturn); |
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316 for (var i in blines) { |
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317 lines.push('\t' + blines[i]); |
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318 } |
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319 lines.push('}'); |
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320 break; |
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321 case 'while:do': |
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322 if (needsreturn) { |
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323 throw new Error("while:do can't be last statement in llMessage code block"); |
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324 } |
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325 lines.push('while (' + this.args[0].toCLLExpr(vars) + ') {'); |
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326 var blines = this.args[1].toCLines(vars); |
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327 for (var i in blines) { |
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328 lines.push('\t' + blines[i]); |
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329 } |
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330 lines.push('}'); |
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331 break; |
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332 default: |
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333 lines.push( (needsreturn ? 'return (object *)' : '') + this.toCLLExpr(vars) + ';'); |
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334 } |
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335 return lines; |
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336 }; |
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337 |
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338 funcall.prototype.toCLLExpr = function(vars) { |
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339 var name = this.name[this.name.length-1] == ':' ? this.name.substr(0, this.name.length-1) : this.name; |
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340 var args = this.args.slice(0, this.args.length); |
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341 if (this.receiver) { |
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342 if(this.args.length == 0) { |
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343 return this.receiver.toCLLExpr(vars) + '->' + this.name; |
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344 } else if (this.args.length == 1 && name[name.length-1] == '!') { |
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345 return this.receiver.toCLLExpr(vars) + '->' + this.name.substr(0, name.length-1) + ' = ' + args[0].toCLLExpr(vars); |
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346 } else { |
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347 args.splice(0, 0, this.receiver); |
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348 } |
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349 } |
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350 switch(name) |
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351 { |
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352 case 'if': |
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353 return '((' + args[0].toCLLExpr(vars) + ') ? (' + args[1].toCLLExpr(vars) + ') : 0)'; |
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354 case 'if:else': |
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355 return '((' + args[0].toCLLExpr(vars) + ') ? (' + args[1].toCLLExpr(vars) + ') : (' + args[2].toCLLExpr(vars) + '))'; |
84
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356 case 'while:do': |
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357 throw new Error('while:do not allowed in expression context in llMessage block'); |
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358 case 'addr_of': |
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359 return '&(' + args[0].toCLLExpr(vars) + ')'; |
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360 case 'sizeof': |
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361 return 'sizeof(' + args[0].toCTypeName() + ')'; |
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362 case 'get': |
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363 return args[0].toCLLExpr(vars) + '[' + args[1].toCLLExpr(vars) + ']'; |
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364 case 'set': |
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365 return args[0].toCLLExpr(vars) + '[' + args[1].toCLLExpr(vars) + '] = ' + args[2].toCLLExpr(vars); |
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366 case 'not': |
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367 return '!(' + args[0].toCLLExpr(vars) + ')'; |
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368 case 'mcall': |
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369 if (args[0] instanceof symbol) { |
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370 args[0] = new intlit(getMethodId(args[0].name)); |
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371 } |
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372 default: |
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373 for (var i in args) { |
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374 args[i] = args[i].toCLLExpr(vars); |
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375 } |
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376 return name + '(' + args.join(', ') + ')'; |
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377 } |
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378 }; |
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379 |
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380 function cObject(name) { |
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381 this.name = name; |
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382 this.slots = {}; |
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383 this.properties = []; |
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384 this.values = []; |
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385 this.slotvars = {}; |
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386 this.includes = {}; |
59 | 387 this.parent = 'NULL'; |
388 this.init = []; | |
389 this.initmsgadded = false; | |
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390 } |
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391 |
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392 cObject.prototype.addInclude = function(includefile) { |
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393 this.includes[includefile] = true; |
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394 } |
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395 |
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396 cObject.prototype.addMessage = function(msgname, implementation) { |
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397 var methodid = getMethodId(msgname); |
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398 var trunc = methodid & 0xF; |
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399 if (!(trunc in this.slots)) { |
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400 this.slots[trunc] = []; |
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401 } |
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402 this.slots[trunc].push([methodid, '\t\t' + implementation.lines.join('\n\t\t') + '\n', msgname]); |
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403 if (!(trunc in this.slotvars)) { |
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404 this.slotvars[trunc] = {}; |
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405 } |
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406 for (var varname in implementation.vars) { |
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407 this.slotvars[trunc][varname] = implementation.vars[varname]; |
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408 } |
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409 } |
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410 |
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411 cObject.prototype.addProperty = function(propname, value, type) { |
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412 if (type != undefined) { |
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413 this.properties.push([propname, type]); |
42
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414 if (value !== null) { |
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415 this.values.push(value); |
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416 } |
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417 } else { |
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418 var escaped = escapeCName(propname); |
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419 this.addMessage(propname, { |
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420 vars: {}, |
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421 lines: [ |
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422 'return self->' + escaped + ';' |
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423 ]}); |
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424 this.addMessage(propname + '!', { |
59 | 425 vars: {}, |
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426 lines: [ |
59 | 427 'self->' + escaped + ' = va_arg(args, object *);', |
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428 'return (object *)self;' |
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429 ]}); |
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430 this.properties.push(escaped); |
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431 this.values.push(value); |
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432 } |
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433 } |
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434 |
59 | 435 cObject.prototype.addInit = function(statement) { |
436 this.init.push(statement); | |
437 } | |
438 | |
439 cObject.prototype.checkInitMsg = function() { | |
440 if (!this.initmsgadded && this.init.length) { | |
441 var init = this.init.slice(0, this.init.length); | |
442 init.push('return (object *)self;'); | |
443 this.addMessage('_init', { | |
444 vars: {}, | |
445 lines: init | |
446 }); | |
447 this.initmsgadded = true; | |
448 } | |
449 } | |
450 | |
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451 cObject.prototype.populateSymbols = function() {}; |
59 | 452 |
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453 cObject.prototype.toEarlyCDef = function() { |
59 | 454 this.checkInitMsg(); |
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455 var includes = ''; |
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456 for (var file in this.includes) { |
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457 includes += '#include ' + file + '\n'; |
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458 } |
54 | 459 var objdef = 'typedef struct ' + this.name + ' {\n\tobject header;\n'; |
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460 for (var i in this.properties) { |
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461 if (this.properties[i] instanceof Array) { |
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462 objdef += '\t' + this.properties[i][1] + ' ' + this.properties[i][0] + ';\n'; |
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463 } else { |
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464 objdef += '\tobject * ' + this.properties[i] + ';\n' |
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465 } |
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466 } |
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467 objdef += '} ' + this.name + ';\nobj_meta ' + this.name + '_meta;\n'; |
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468 return includes + objdef; |
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469 } |
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470 |
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471 cObject.prototype.toCDef = function() { |
59 | 472 this.checkInitMsg(); |
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473 var slotdefs = ''; |
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474 var metadef = 'obj_meta ' + this.name + '_meta = {sizeof(' + this.name +'), {'; |
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475 for (var i = 0; i < 16; i++) { |
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476 if (i) { |
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477 metadef += ', '; |
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478 } |
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479 if (i in this.slots) { |
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480 slotdefs += 'object * ' + this.name + '_slot_' + i + '(uint32_t method_id, uint32_t num_params, object * oself, va_list args) {\n\t' + |
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481 this.name + ' *self = (' + this.name + ' *)oself;\n'; |
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482 for (var varname in this.slotvars[i]) { |
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483 slotdefs += '\t' + this.slotvars[i][varname] + ' ' + varname + ';\n'; |
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484 } |
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485 if (this.slots[i].length == 1) { |
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486 slotdefs += '\tif (method_id == ' + this.slots[i][0][0] + ') { /* ' + this.slots[i][0][2] + '*/\n' + |
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487 '\t\t' + this.slots[i][0][1] + '\n' + |
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488 '\t}\n' + |
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489 '\treturn no_impl(method_id, num_params, (object *)self, args);\n}\n'; |
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490 } else { |
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491 slotdefs += '\tswitch(method_id) {\n'; |
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492 for (j in this.slots[i]) { |
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493 slotdefs += '\t\tcase ' + this.slots[i][j][0] + ': /* ' + this.slots[i][j][2] + '*/\n' + |
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494 '\t\t\t' + this.slots[i][j][1] + '\n'; |
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495 } |
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496 slotdefs += '\t\tdefault:\n' + |
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497 '\t\t\treturn no_impl(method_id, num_params, (object *)self, args);\n\t}\n}\n'; |
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498 |
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499 } |
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500 metadef += this.name + '_slot_' + i; |
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501 } else { |
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502 metadef += 'no_impl'; |
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503 } |
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504 } |
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505 metadef += '}};\n'; |
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506 return slotdefs + metadef; |
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507 } |
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508 |
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509 cObject.prototype.toCInstance = function() { |
59 | 510 this.checkInitMsg(); |
511 var ret = 'make_object(&' + this.name + '_meta, ' + this.parent + ', ' + this.values.length + (this.values.length ? ', ' : '') + this.values.join(', ') + ')'; | |
512 if (this.initmsgadded) { | |
513 ret = 'mcall(' + getMethodId('_init') + ', 1, ' + ret + ')' | |
514 } | |
515 return ret; | |
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516 } |
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517 |
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518 cObject.prototype.toC = function() { |
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519 forwarddec += this.toEarlyCDef(); |
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520 toplevelcode += this.toCDef(); |
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521 return this.toCInstance(); |
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522 } |
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523 |
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524 var nextobject = 0; |
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525 |
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526 |
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527 object.prototype.toCObject = function() { |
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528 var messages = this.messages; |
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529 var values = []; |
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530 var imports = []; |
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531 if (!this.name) { |
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532 this.name = 'object_' + nextobject++; |
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533 } |
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534 var me = new cObject(this.name); |
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535 this.symbols.typename = me.name; |
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536 if (this.symbols.needsenv) { |
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537 me.addProperty('env', this.symbols.envVar(), 'struct ' + this.symbols.getEnvType() + ' * '); |
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538 me.hasenv = true; |
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539 } |
59 | 540 if (this.symbols.needsparent && !(this.symbols.parent instanceof osymbols)) { |
541 me.parent = '(object *)(' + (new symbol('self', this.symbols.parent)).toC() + ')'; | |
542 } | |
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543 for (var i in messages) { |
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544 if (messages[i] instanceof funcall) { |
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545 if (messages[i].name == 'import:' && messages[i].args.length == 1) { |
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546 imports.push({symbols: false, src: messages[i].args[0]}); |
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547 } else if(messages[i].name == 'import:from:' && messages[i].args.length == 2) { |
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548 var importsyms = []; |
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549 each(messages[i].args[0].val, function(i, el) { |
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550 if (!(el instanceof symbol)) { |
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551 throw new Error('Names in import:from statement must be symbols'); |
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552 } |
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553 importsyms.push(new strlit(el.name)); |
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554 }); |
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555 imports.push({symbols: new listlit(importsyms), src: messages[i].args[1]}); |
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556 } else if(messages[i].name == 'llProperty:withType:' && messages[i].args.length == 2) { |
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557 me.addProperty(messages[i].args[0].name, null, messages[i].args[1].toCTypeName()) |
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558 } else if(messages[i].name == 'llMessage:withVars:andCode:' && messages[i].args.length == 3) { |
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559 var msgname = messages[i].args[0].name |
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560 var rawvars = messages[i].args[1].expressions; |
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561 var vars = {}; |
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562 for(var v in rawvars) { |
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563 vars[rawvars[v].symbol.name] = rawvars[v].expression.toCTypeName(); |
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564 } |
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565 me.addMessage(msgname, { |
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566 vars: vars, |
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567 lines: messages[i].args[2].toCLines(vars, true) |
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568 }); |
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569 } else { |
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570 |
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571 throw new Error('Only import and import:from calls allowed in object context. ' + messages[i].name + 'with ' + messages[i].args.length + ' arguments found instead.'); |
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572 } |
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573 } else { |
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574 messages[i].toCObject(me); |
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575 } |
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576 } |
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577 |
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578 return me; |
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579 }; |
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580 |
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581 object.prototype.toC = function() { |
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582 return this.toCObject().toC(); |
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583 }; |
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584 |
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585 var toplevelcode; |
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586 var forwarddec; |
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587 |
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588 function addBinaryOp(cobject, opname, cop, objtype) |
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589 { |
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590 cobject.addMessage(opname, { |
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591 vars: {ret: objtype + ' *', argb: objtype +' *'}, |
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592 lines: [ |
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593 'argb = va_arg(args, ' + objtype + ' *);', |
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594 'ret = (' + objtype + ' *)make_object(&' + objtype + '_meta, NULL, 0);', |
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595 'ret->num = self->num ' + cop + ' argb->num;', |
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596 'return &(ret->header);' |
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597 ] |
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598 }); |
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599 } |
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600 |
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601 function addCompOp(cobject, opname, cop, objtype) |
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602 { |
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603 cobject.addMessage(opname, { |
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604 vars: {argb: objtype + ' *'}, |
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605 lines: [ |
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606 'argb = va_arg(args, ' + objtype + ' *);', |
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607 'if (self->num ' + cop + ' argb->num) {', |
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608 ' return ' + toplevel.moduleVar('true') + ';', |
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609 '}', |
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610 'return ' + toplevel.moduleVar('false') + ';', |
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611 ] |
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612 }); |
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613 } |
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614 |
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615 function makeInt32() |
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616 { |
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617 var int32 = new cObject('obj_int32'); |
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618 int32.addProperty('num', null, 'int32_t'); |
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619 addBinaryOp(int32, 'ADD_', '+', 'obj_int32'); |
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620 addBinaryOp(int32, 'SUB_', '-', 'obj_int32'); |
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621 addBinaryOp(int32, 'MUL_', '*', 'obj_int32'); |
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622 addBinaryOp(int32, 'DIV_', '/', 'obj_int32'); |
67 | 623 addBinaryOp(int32, 'MOD_', '%', 'obj_int32'); |
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624 addCompOp(int32, 'LT_', '<', 'obj_int32'); |
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625 addCompOp(int32, 'GT_', '>', 'obj_int32'); |
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626 addCompOp(int32, 'EQ_', '==', 'obj_int32'); |
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627 addCompOp(int32, 'NEQ_', '!=', 'obj_int32'); |
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628 addCompOp(int32, 'GEQ_', '>=', 'obj_int32'); |
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629 addCompOp(int32, 'LEQ_', '<=', 'obj_int32'); |
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630 int32.addInclude('<string.h>'); |
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631 int32.addMessage('string', { |
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632 vars: {str: 'string *'}, |
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633 lines: [ |
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634 'str = (string *)make_object(&string_meta, NULL, 0);', |
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635 'str->data = GC_MALLOC(12);', |
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636 'sprintf(str->data, "%d", self->num);', |
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637 'str->len = str->bytes = strlen(str->data);', |
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638 'return &(str->header);' |
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639 ] |
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640 }); |
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641 int32.addMessage('hash', { |
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642 vars: {}, |
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643 lines: [ |
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644 'return &(self->header);' |
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645 ] |
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646 }); |
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647 return int32; |
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648 } |
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649 |
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650 function makeArray() |
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651 { |
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652 var arrayfile = toplevel.names['array']; |
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653 var ast = parseFile(arrayfile.path + '/' + arrayfile.file); |
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654 ast.name = 'array'; |
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655 ast.populateSymbols(toplevel); |
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656 return ast.toCObject(); |
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657 } |
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658 |
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659 function makeString() |
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660 { |
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661 var arrayfile = toplevel.names['string']; |
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662 var ast = parseFile(arrayfile.path + '/' + arrayfile.file); |
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663 ast.name = 'string'; |
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664 ast.populateSymbols(toplevel); |
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665 return ast.toCObject(); |
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666 } |
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667 |
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668 function makelambda() |
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669 { |
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670 var clos = new cObject('lambda'); |
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671 clos.addProperty('env', null, 'void *'); |
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672 clos.addProperty('func', null, 'closure_func'); |
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673 clos.addMessage('while:do', { |
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674 vars: {action: 'lambda *', ret: 'object *'}, |
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675 lines: [ |
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676 'action = va_arg(args, lambda *);', |
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677 'ret = ' + toplevel.moduleVar('true') + ';', |
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678 'while(' + toplevel.moduleVar('true') + ' == ccall(self, 0)) {', |
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679 ' ccall(action, 0);', |
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680 '}', |
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681 'return ret;' |
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682 ] |
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683 }); |
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684 return clos; |
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685 } |
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686 |
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687 function builtinTypes() |
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688 { |
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689 return [makeInt32(), makeArray(), makeString(), makelambda()]; |
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690 } |
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691 |
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692 function addBuiltinModules(toplevel) |
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693 { |
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694 var os = new cObject('mod_obj_os'); |
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695 os.addInclude('<sys/stat.h>'); |
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696 os.addInclude('<fcntl.h>'); |
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697 os.addMessage('write', { |
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698 vars: {str: 'string *', intret: 'obj_int32 *', filedes: 'obj_int32 *'}, |
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699 lines: [ |
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700 'filedes = va_arg(args, obj_int32 *);', |
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701 'str = va_arg(args, string *);', |
59 | 702 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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703 'intret->num = write(filedes->num, str->data, str->bytes);', |
59 | 704 'return &(intret->header);' |
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705 ] |
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706 }); |
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707 os.addMessage('read', { |
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708 vars: {str: 'string *', size: 'obj_int32 *', filedes: 'obj_int32 *'}, |
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709 lines: [ |
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710 'filedes = va_arg(args, obj_int32 *);', |
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711 'size = va_arg(args, obj_int32 *);', |
59 | 712 'str = (string *)make_object(&string_meta, NULL, 0);', |
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713 'str->data = GC_MALLOC_ATOMIC(size->num + 1);', |
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714 'str->length = str->bytes = read(filedes->num, str->data, size->num);', |
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715 'if (str->bytes < 0) { str->bytes = str->length = 0; }', |
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716 'str->data[str->bytes] = 0;', |
59 | 717 'return &(str->header);' |
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718 ] |
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719 }); |
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720 os.addMessage('open', { |
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721 vars: {str: 'string *', flags: 'obj_int32 *', filedes: 'obj_int32 *', perm: 'obj_int32 *'}, |
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722 lines: [ |
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723 'str = va_arg(args, string *);', |
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724 'flags = va_arg(args, obj_int32 *);', |
59 | 725 'filedes = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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726 'if (num_params == 3) {', |
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727 ' filedes->num = open(str->data, flags->num);', |
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728 '} else if (num_params == 4) {', |
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729 ' perm = va_arg(args, obj_int32 *);', |
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730 ' filedes->num = open(str->data, flags->num, perm->num);', |
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731 '} else {', |
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732 ' filedes->num = -1;', |
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733 '}', |
59 | 734 'return &(filedes->header);' |
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735 ] |
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736 }); |
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737 os.addMessage('close', { |
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738 vars: {filedes: 'obj_int32 *', intret: 'obj_int32 *'}, |
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739 lines: [ |
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740 'filedes = va_arg(args, obj_int32 *);', |
59 | 741 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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742 'intret->num = close(filedes->num);', |
59 | 743 'return &(intret->header);' |
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744 ] |
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745 }); |
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746 os.addMessage('O_RDONLY', { |
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747 vars: {intret: 'obj_int32 *'}, |
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748 lines: [ |
59 | 749 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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750 'intret->num = O_RDONLY;', |
59 | 751 'return &(intret->header);' |
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752 ] |
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753 }); |
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754 os.addMessage('O_WRONLY', { |
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755 vars: {intret: 'obj_int32 *'}, |
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756 lines: [ |
59 | 757 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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758 'intret->num = O_WRONLY;', |
59 | 759 'return &(intret->header);' |
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760 ] |
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761 }); |
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762 os.addMessage('O_RDWR', { |
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763 vars: {intret: 'obj_int32 *'}, |
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764 lines: [ |
59 | 765 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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766 'intret->num = O_RDWR;', |
59 | 767 'return &(intret->header);' |
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768 ] |
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769 }); |
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770 os.addMessage('O_CREAT', { |
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771 vars: {intret: 'obj_int32 *'}, |
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772 lines: [ |
59 | 773 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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774 'intret->num = O_CREAT;', |
59 | 775 'return &(intret->header);' |
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776 ] |
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777 }); |
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778 os.addMessage('O_APPEND', { |
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779 vars: {intret: 'obj_int32 *'}, |
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780 lines: [ |
59 | 781 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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782 'intret->num = O_APPEND;', |
59 | 783 'return &(intret->header);' |
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784 ] |
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785 }); |
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786 os.addMessage('O_TRUNC', { |
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787 vars: {intret: 'obj_int32 *'}, |
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788 lines: [ |
59 | 789 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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790 'intret->num = O_TRUNC;', |
59 | 791 'return &(intret->header);' |
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792 ] |
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793 }); |
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794 toplevel.names['os'] = os; |
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795 } |
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796 |
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797 modulefile.prototype.populateSymbols = function (toplevel) { |
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798 if (!this.ast) { |
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799 this.ast = parseFile(this.path + '/' + this.file); |
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800 this.ast.populateSymbols(toplevel); |
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801 } |
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802 }; |
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803 |
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804 modulefile.prototype.toC = function(){ |
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805 this.populateSymbols(toplevel); |
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806 return this.ast.toCModuleInstance(); |
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807 }; |
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808 |
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809 function processUsedToplevel(toplevel) |
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810 { |
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811 var alwaysused = ['true', 'false']; |
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812 var ret = ''; |
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813 var modulenum = 0; |
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814 var visited = {}; |
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815 for (var i in alwaysused) { |
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816 toplevel.used[alwaysused[i]] = true; |
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817 } |
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818 var newused = Object.keys(toplevel.used); |
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819 var allused = newused; |
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820 while (newused.length) { |
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821 for (var i in newused) { |
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822 debugprint('//---module', newused[i], '--- populate symbols'); |
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823 forwarddec += 'object * ' + toplevel.moduleVar(newused[i]) + ';\n'; |
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824 toplevel.names[newused[i]].populateSymbols(toplevel); |
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825 visited[newused[i]] = true; |
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826 } |
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827 newused = []; |
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828 for (var symbol in toplevel.used) { |
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829 if (!(symbol in visited)) { |
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830 debugprint('//found new usage of module', symbol); |
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831 newused.push(symbol); |
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832 allused.push(symbol); |
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833 } |
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834 } |
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835 } |
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836 |
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837 for (var i = allused.length-1; i >= 0; i--) { |
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838 var symbol = allused[i]; |
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839 debugprint('//---module', symbol, '(' + i +')--- compile'); |
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840 ret += '\t' + toplevel.moduleVar(symbol) + ' = ' + toplevel.names[symbol].toC() + ';\n'; |
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841 } |
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842 return ret; |
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843 } |
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844 |
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845 function makeCProg(obj) |
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846 { |
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847 forwarddec = toplevelcode = ''; |
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848 var builtins = builtinTypes(); |
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849 for (var i in builtins) { |
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850 forwarddec += builtins[i].toEarlyCDef(); |
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851 toplevelcode += builtins[i].toCDef(); |
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852 } |
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853 addBuiltinModules(toplevel); |
54 | 854 debugprint('//------POPULATING SYMBOLS-----'); |
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855 obj.populateSymbols(toplevel); |
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856 var moduleinit = processUsedToplevel(toplevel); |
54 | 857 debugprint('//------COMPILING AST-----'); |
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858 var rest = 'object * mainModule() {\n' + moduleinit + '\tmain_module = ' + obj.toCModuleInstance() + ';\n\treturn main_module;\n}\n'; |
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859 return '#include "runtime/proghead.inc"\n' + |
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860 '#define METHOD_ID_MAIN ' + getMethodId('main') + '\n' + |
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861 forwarddec + toplevelcode + rest + '#include "runtime/progfoot.inc"\n'; |
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862 } |
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863 |
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864 object.prototype.toCModule = function() { |
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865 return makeCProg(this); |
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866 } |
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867 |
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868 object.prototype.toCModuleInstance = function() { |
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869 return this.toC(); |
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870 } |
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871 |
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872 var lambdanum = 0; |
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873 |
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874 lambda.prototype.toC = function() { |
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875 var args = this.args ? this.args.slice(0, this.args.length) : []; |
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876 var exprs = this.expressions; |
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877 var mynum = lambdanum++; |
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878 debugprint('//lambda', mynum); |
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879 if (Object.keys(this.symbols.closedover).length) { |
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880 this.symbols.envtype = 'lambda_' + mynum + '_env'; |
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881 } |
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882 if (this.selftype) { |
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883 this.symbols.defineVar('self', this.selftype); |
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884 if (args[0] && args[0].cleanName() == 'self') { |
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885 args.splice(0, 1); |
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886 } |
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887 var offset = 1; |
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888 } else { |
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889 var offset = 0; |
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890 } |
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891 for (var i = 0; i < args.length; ++i) { |
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892 var argname = args[i].toC(); |
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893 |
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894 args[i] = (argname.indexOf('->') < 0 ? '\tobject * ' : '\t') + argname + ' = va_arg(args, object *);\n'; |
31
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|
895 } |
668f533e5284
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Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
896 var compiled = [] |
668f533e5284
Add initial version of C backend
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parents:
diff
changeset
|
897 for (var i in exprs) { |
668f533e5284
Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
898 var js = exprs[i].toC(); |
668f533e5284
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Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
899 if (js) { |
668f533e5284
Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
900 compiled.push(indent(js)); |
668f533e5284
Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
901 } |
668f533e5284
Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
902 } |
668f533e5284
Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
903 exprs = compiled; |
668f533e5284
Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
904 if (exprs.length) { |
72
ab6f24d6945d
Fix determination of whether a method call has an implicit self argument or not. Cleanup C warnings in output.
Mike Pavone <pavone@retrodev.com>
parents:
69
diff
changeset
|
905 exprs[exprs.length-1] = 'return (object *)(' + exprs[exprs.length-1] + ');'; |
31
668f533e5284
Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
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|
906 } |
34
a10f1b049193
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32
diff
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|
907 |
a10f1b049193
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Mike Pavone <pavone@retrodev.com>
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32
diff
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|
908 if (Object.keys(this.symbols.closedover).length) { |
42
4e983fe32047
Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
909 forwarddec += 'typedef struct lambda_' + mynum + '_env {\n'; |
57
08ae75d90dc2
Add != operator. Fix more closure bugs.
Mike Pavone <pavone@retrodev.com>
parents:
55
diff
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|
910 if (this.symbols.needsParentEnv) { |
08ae75d90dc2
Add != operator. Fix more closure bugs.
Mike Pavone <pavone@retrodev.com>
parents:
55
diff
changeset
|
911 forwarddec += '\tstruct ' + this.symbols.parentEnvType() + ' * parent;\n'; |
08ae75d90dc2
Add != operator. Fix more closure bugs.
Mike Pavone <pavone@retrodev.com>
parents:
55
diff
changeset
|
912 } |
34
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
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|
913 for (var varname in this.symbols.closedover) { |
54 | 914 if (varname == 'self' && this.selftype) { |
915 forwarddec += '\tstruct ' + this.selftype + ' * self;\n'; | |
916 } else { | |
917 forwarddec += '\tobject * ' + escapeCName(varname) + ';\n'; | |
918 } | |
34
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
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32
diff
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|
919 } |
a10f1b049193
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Mike Pavone <pavone@retrodev.com>
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32
diff
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|
920 forwarddec += '} lambda_' + mynum + '_env;\n' |
a10f1b049193
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Mike Pavone <pavone@retrodev.com>
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32
diff
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|
921 |
78
abc6f3d644a4
Use Boehm-GC for garbage collection. Also make no_impl print on stderr rather than standard in and return a non-zero error code.
Mike Pavone <pavone@retrodev.com>
parents:
72
diff
changeset
|
922 var myenvinit = '\tlambda_' + mynum + '_env * myenv = GC_MALLOC(sizeof(lambda_' + mynum + '_env));\n'; |
58
7b454d100dc8
Add length method to array. Pass array of arguments to main method. Initialize parent field of environment struct for closures
Mike Pavone <pavone@retrodev.com>
parents:
57
diff
changeset
|
923 if (this.symbols.needsParentEnv) { |
7b454d100dc8
Add length method to array. Pass array of arguments to main method. Initialize parent field of environment struct for closures
Mike Pavone <pavone@retrodev.com>
parents:
57
diff
changeset
|
924 myenvinit += '\tmyenv->parent = env;\n'; |
7b454d100dc8
Add length method to array. Pass array of arguments to main method. Initialize parent field of environment struct for closures
Mike Pavone <pavone@retrodev.com>
parents:
57
diff
changeset
|
925 } |
34
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
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32
diff
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|
926 this.symbols.envtype = 'lambda_' + mynum + '_env'; |
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
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|
927 } else { |
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
928 var myenvinit = ''; |
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
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32
diff
changeset
|
929 } |
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
930 |
35
bf5e88f6419d
Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents:
34
diff
changeset
|
931 toplevelcode += 'object * lambda_' + mynum + ' (' + this.symbols.parentEnvType() + ' * env, uint32_t num_args, ...) {\n\tva_list args;\n' + myenvinit + '\tva_start(args, num_args);\n'; |
31
668f533e5284
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Mike Pavone <pavone@retrodev.com>
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diff
changeset
|
932 if (this.selftype) { |
34
a10f1b049193
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Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
933 var selfvar = (new symbol('self', this.symbols)).toC(); |
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
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32
diff
changeset
|
934 if (selfvar == 'self') { |
35
bf5e88f6419d
Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents:
34
diff
changeset
|
935 toplevelcode += '\t' + this.selftype + ' * self = va_arg(args, ' + this.selftype + ' *);\n'; |
34
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
936 } else { |
35
bf5e88f6419d
Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents:
34
diff
changeset
|
937 toplevelcode += '\t' + selfvar + ' = va_arg(args, ' + this.selftype + ' *);\n'; |
34
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
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32
diff
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|
938 } |
a10f1b049193
Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents:
32
diff
changeset
|
939 |
31
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Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
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changeset
|
940 } |
35
bf5e88f6419d
Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
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34
diff
changeset
|
941 toplevelcode += args.join('') + '\tva_end(args);\n' + exprs.join(';\n\t') + '\n}\n'; |
60
ef3b34c2c0a4
Fix populatesymbols for parent property references. Fix lambda-style modules in cbackend.
Mike Pavone <pavone@retrodev.com>
parents:
59
diff
changeset
|
942 this.name = 'lambda_' + mynum; |
34
a10f1b049193
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32
diff
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|
943 |
42
4e983fe32047
Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
944 if (this.selftype) { |
60
ef3b34c2c0a4
Fix populatesymbols for parent property references. Fix lambda-style modules in cbackend.
Mike Pavone <pavone@retrodev.com>
parents:
59
diff
changeset
|
945 return this.name; |
42
4e983fe32047
Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
946 } else { |
4e983fe32047
Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
947 if (this.symbols.parentEnvType() != 'void') { |
55
93ddb4ad6fcb
Fix some nested closure bugs
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
948 if (this.symbols.parent.passthruenv) { |
42
4e983fe32047
Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
949 var envvar = 'env'; |
4e983fe32047
Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
950 } else { |
4e983fe32047
Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
951 var envvar = 'myenv'; |
4e983fe32047
Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
952 } |
55
93ddb4ad6fcb
Fix some nested closure bugs
Mike Pavone <pavone@retrodev.com>
parents:
54
diff
changeset
|
953 debugprint('//lambda_' + mynum, 'has envvar:', envvar, 'num vars closed over:', Object.keys(this.symbols.closedover).length); |
60
ef3b34c2c0a4
Fix populatesymbols for parent property references. Fix lambda-style modules in cbackend.
Mike Pavone <pavone@retrodev.com>
parents:
59
diff
changeset
|
954 return 'make_lambda(' + envvar + ', (closure_func)' + this.name + ')'; |
42
4e983fe32047
Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents:
41
diff
changeset
|
955 } else { |
45
2a9c6eed0c70
Move closure/lambda object def into compiler rather than runtime code. Add while:do method to lambda
Mike Pavone <pavone@retrodev.com>
parents:
43
diff
changeset
|
956 toplevelcode += 'lambda lambda_obj_' + mynum + ' = {{&lambda_meta, NULL}, NULL, lambda_' + mynum + '};\n'; |
42
4e983fe32047
Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
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41
diff
changeset
|
957 return '((object *)&lambda_obj_' + mynum + ')'; |
34
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32
diff
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|
958 } |
a10f1b049193
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Mike Pavone <pavone@retrodev.com>
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32
diff
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|
959 } |
31
668f533e5284
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changeset
|
960 }; |
60
ef3b34c2c0a4
Fix populatesymbols for parent property references. Fix lambda-style modules in cbackend.
Mike Pavone <pavone@retrodev.com>
parents:
59
diff
changeset
|
961 lambda.prototype.toCModuleInstance = function() { |
ef3b34c2c0a4
Fix populatesymbols for parent property references. Fix lambda-style modules in cbackend.
Mike Pavone <pavone@retrodev.com>
parents:
59
diff
changeset
|
962 this.toC(); |
ef3b34c2c0a4
Fix populatesymbols for parent property references. Fix lambda-style modules in cbackend.
Mike Pavone <pavone@retrodev.com>
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59
diff
changeset
|
963 return this.name + '(NULL, 0)'; |
ef3b34c2c0a4
Fix populatesymbols for parent property references. Fix lambda-style modules in cbackend.
Mike Pavone <pavone@retrodev.com>
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59
diff
changeset
|
964 }; |
31
668f533e5284
Add initial version of C backend
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|
965 lambda.prototype.toCObject = function(typename) { |
668f533e5284
Add initial version of C backend
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diff
changeset
|
966 this.selftype = typename; |
668f533e5284
Add initial version of C backend
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diff
changeset
|
967 return this.toC(); |
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diff
changeset
|
968 }; |
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Add initial version of C backend
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diff
changeset
|
969 lambda.prototype.toCModule = function() { |
668f533e5284
Add initial version of C backend
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diff
changeset
|
970 return makeCProg(this); |
84
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
Mike Pavone <pavone@retrodev.com>
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79
diff
changeset
|
971 }; |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
972 lambda.prototype.toCLines = function(vars, needsreturn) { |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
changeset
|
973 var lines = []; |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
974 for (var i in this.args) { |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
975 var name = this.args[i].name; |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
976 if (name[0] == ':') { |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
977 name = name.substr(1); |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
978 } |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
979 if(name != 'self') { |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
980 lines.push(name + ' = va_arg(args, ' + vars[name] + ');'); |
9811040704ac
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79
diff
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|
981 } |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
982 } |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
983 for (var i in this.expressions) { |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
984 var exprlines = this.expressions[i].toCLines(vars, needsreturn && i == this.expressions.length - 1); |
9811040704ac
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79
diff
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|
985 for (var j in exprlines) { |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
changeset
|
986 lines.push('\t' + exprlines[j]); |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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79
diff
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|
987 } |
9811040704ac
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79
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|
988 } |
9811040704ac
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79
diff
changeset
|
989 return lines; |
9811040704ac
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|
990 } |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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diff
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|
991 lambda.prototype.toCLLExpr = function(vars) { |
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79
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|
992 if (this.expressions.length != 1) { |
9811040704ac
Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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diff
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|
993 throw new Error('lambda in expression context must have a single statement in llMessage block'); |
9811040704ac
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79
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|
994 } |
9811040704ac
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79
diff
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|
995 return this.expressions[0].toCLLExpr(vars); |
31
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diff
changeset
|
996 } |
668f533e5284
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diff
changeset
|
997 |
668f533e5284
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|
998 assignment.prototype.toC = function() { |
54 | 999 debugprint('//assignment', this.symbol.name); |
31
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|
1000 var existing = this.symbols.find(this.symbol.name); |
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diff
changeset
|
1001 var prefix = ''; |
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|
1002 var val = this.expression.toC(); |
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diff
changeset
|
1003 if (val === null) { |
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1004 return null; |
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1005 } |
38 | 1006 if (existing.type == 'local' && !existing.isdeclared) { |
1007 prefix = 'object *'; | |
1008 this.symbols.declareVar(this.symbol.name); | |
54 | 1009 debugprint('//declared var', this.symbol.name); |
38 | 1010 } |
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1011 return prefix + this.symbol.toC() + ' = ' + val; |
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1012 }; |
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1013 assignment.prototype.toCObject = function(cobj) { |
54 | 1014 debugprint('//message definition', this.symbol.name); |
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1015 if (this.expression.toCObject) { |
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1016 var val = this.expression.toCObject(cobj.name); |
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1017 } else { |
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1018 var val = this.expression.toC(); |
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1019 } |
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1020 if (val === null) { |
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1021 return; |
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1022 } |
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1023 if (this.expression instanceof lambda) { |
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1024 var params = ['((object *)self)']; |
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1025 var paramget = ''; |
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1026 var messagevars = {}; |
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1027 for (var i in this.expression.args) { |
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1028 var escaped = escapeCName(this.expression.args[i].cleanName()); |
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1029 if (escaped != 'self') { |
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1030 messagevars[escaped] = 'object *'; |
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1031 params.push(escaped); |
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1032 paramget += escaped + ' = va_arg(args, object *); '; |
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1033 } |
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1034 } |
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1035 cobj.addMessage(this.symbol.name, { |
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1036 vars: messagevars, |
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1037 lines: [paramget + 'return ' + val + '(' + (cobj.hasenv ? 'self->env' : 'NULL') + ', ' + params.length + (params.length ? ', ' : '') + params.join(', ') + ');'] |
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1038 }); |
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1039 } else { |
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1040 cobj.addProperty(this.symbol.name, val); |
59 | 1041 if (this.expression instanceof object && this.expression.symbols.needsparent) { |
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1042 cobj.addInit('self->' + escapeCName(this.symbol.name) + '->parent = (object *)self;'); |
59 | 1043 } |
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1044 } |
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1045 }; |
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1046 assignment.prototype.toCLines = function(vars, needsreturn) { |
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1047 return [(needsreturn ? 'return ' : '') + this.symbol.toCLLExpr(vars) + ' = ' + this.expression.toCLLExpr(vars) + ';'] |
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1048 }; |