Mercurial > repos > tabletprog
annotate cbackend.js @ 172:8d466c5a7dff
Fixed a few bugs. Improved the "symbol not found" error messages. Added a "signed?" method to integer objects
author | Mike Pavone <pavone@retrodev.com> |
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date | Wed, 21 Aug 2013 07:59:34 -0700 |
parents | 869399ff7faa |
children | 76e3d4ae1746 |
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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 var assignNames; |
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7 function getMethodId(methodName) |
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8 { |
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9 if (!(methodName in methodIds)) { |
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10 methodIds[methodName] = nextmethodId++; |
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11 |
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12 } |
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13 return methodIds[methodName]; |
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14 } |
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15 |
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16 function getOpMethodName(opname) |
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17 { |
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18 var optoMeth = {'+': 'ADD_', '-': 'SUB_', '*': 'MUL_', '/': 'DIV_', '%': 'MOD_', |
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19 '=': 'EQ_', '!=': 'NEQ_', '<': 'LT_', '>': 'GT_', '>=': 'GEQ_', '<=': 'LEQ_', |
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20 '.': 'CAT_', '&&':'if', '||':'ifnot', '|': 'CONS_'}; |
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21 if (opname in optoMeth) { |
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22 return optoMeth[opname]; |
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23 } else { |
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24 return opname; |
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25 } |
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26 } |
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27 |
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28 op.prototype.toC = function(isReceiver) { |
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29 var method = getOpMethodName(this.op); |
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30 if (this.op == '|') { |
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31 return 'mcall(' + getMethodId(method) + '/* operator ' + method + ' */, 2, (object *)' + this.right.toC() + ', ' + this.left.toC() + ')\n'; |
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32 } else { |
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33 return 'mcall(' + getMethodId(method) + '/* operator ' + method + ' */, 2, (object *)' + this.left.toC() + ', ' + this.right.toC() + ')\n'; |
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34 } |
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35 }; |
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36 op.prototype.toCLLExpr = function(vars) { |
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37 var opmap = {'=': '==', 'xor': '^'}; |
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38 return this.left.toCLLExpr(vars) + (this.op in opmap ? opmap[this.op] : this.op) + this.right.toCLLExpr(vars); |
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39 }; |
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40 op.prototype.toCLines = function(vars, needsreturn) { |
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41 return [ (needsreturn ? 'return (object *)' : '' ) + this.toCLLExpr(vars) + ';']; |
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42 }; |
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43 |
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44 |
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45 function escapeCName(name) |
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46 { |
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47 if (name == 'self') { |
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48 return name; |
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49 } |
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50 name = name.replace(/_/g, "UN_").replace(/:/g, "CN_").replace(/!/g, "EX_").replace(/\?/g, 'QS_').replace(/@/g, 'AT_'); |
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51 name = 'tp_' + name; |
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52 return name; |
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53 } |
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54 |
54 | 55 function getSymbolPrefix(info, symbols) |
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56 { |
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57 var pre = ''; |
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58 switch(info.type) { |
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59 case 'self': |
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60 |
54 | 61 pre = (new symbol('self', symbols)).toC() + '->'; |
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62 break; |
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63 case 'parent': |
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64 pre = (new symbol('self', symbols)).toC() + '->header.'; |
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65 for (var i = 0; i < info.depth; ++i) { |
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66 pre += (i ? '->' : '') + 'parent'; |
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67 } |
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68 pre = '((' + info.selftype + ' *)' + pre + ')->'; |
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69 break; |
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70 case 'upvar': |
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71 pre = 'env->'; |
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72 for (var i = info.startdepth; i < info.depth; ++i) { |
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73 pre += 'parent->'; |
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74 } |
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75 break; |
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76 case 'recupvar': |
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77 if (info.subtype == 'object') { |
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78 pre = 'self->env->'; |
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79 } else { |
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80 //TODO: fill this case in if necessary |
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81 } |
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82 pre += getSymbolPrefix(info.parent); |
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83 case 'closedover': |
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84 pre = 'myenv->'; |
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85 } |
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86 return pre; |
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87 } |
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88 |
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89 symbol.prototype.toC = function() { |
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90 var name = this.cleanName(); |
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91 var info = this.symbols.find(name); |
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92 if (!info) { |
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93 throw new Error('symbol ' + name + ' not found in ' + assignNames.join('<-')); |
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94 } |
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95 if (info.type == 'toplevel') { |
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96 return toplevel.moduleVar(name); |
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97 } else if (info.type == 'self' && info.def instanceof lambda) { |
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98 return 'mcall(' + getMethodId(name) + '/* ' + name + ' */, 1, ' + (new symbol('self', this.symbols)).toC() + ')'; |
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99 } else if (info.type == 'parent' && info.def instanceof lambda) { |
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100 var obj = (new symbol('self', this.symbols)).toC() + '->header.'; |
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101 for (var i = 0; i < info.depth; ++i) { |
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102 obj += (i ? '->' : '') + 'parent'; |
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103 } |
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104 return 'mcall(' + getMethodId(name) + '/* ' + name + ' */, 1, ' + obj + ')'; |
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105 } |
54 | 106 return getSymbolPrefix(info, this.symbols) + escapeCName(name); |
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107 } |
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108 symbol.prototype.toCTypeName = function() { |
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109 return this.cleanName(); |
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110 }; |
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111 symbol.prototype.toCLLExpr = function(vars) { |
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112 var name = this.cleanName(); |
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113 if (name in vars) { |
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114 return name; |
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115 } |
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116 if (name == 'self') { |
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117 return 'self'; |
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118 } |
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119 var info = this.symbols.find(name, false, true); |
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120 var symbols = this.symbols; |
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121 while (info && info.type == 'local') { |
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122 symbols = symbols.parent; |
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123 info = symbols.find(name, false, true); |
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124 } |
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125 if (!info) { |
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126 return name; |
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127 } |
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128 if (info.type == 'toplevel') { |
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129 return toplevel.moduleVar(name); |
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130 } else if (info.type == 'self') { |
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131 if (info.isll || !(info.def instanceof lambda)) { |
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132 return 'self->' + name; |
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133 } else { |
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134 return 'mcall(' + getMethodId(name) + '/* ' + name + ' */, 1, self)'; |
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135 } |
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136 } |
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137 throw new Error('Unsupported reference type ' + info.type + ' for variable ' + name); |
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138 }; |
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139 symbol.prototype.toCLines = function(vars, needsreturn) { |
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140 return [ (needsreturn ? 'return (object *)' : '' ) + this.toCLLExpr(vars) + ';' ]; |
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141 }; |
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142 |
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143 var declaredInts = {}; |
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144 |
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145 intlit.prototype.toC = function() { |
155
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146 var intType = (this.unsigned ? 'u' : '') + 'int' + this.bits; |
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147 var str = intType + '_' + (this.val < 0 ? 'neg_' + (0-this.val).toString() : this.val.toString()); |
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148 if (!(str in declaredInts)) { |
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149 toplevelcode += 'obj_' + intType + ' ' + str + ' = {{&obj_' + intType + '_meta, NULL}, ' + this.val.toString() + '};\n'; |
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150 declaredInts[str] = true; |
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151 } |
135
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152 return '((object *)&' + str + ')'; |
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153 } |
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154 intlit.prototype.toCLLExpr = function(vars) { |
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155 return this.val.toString(); |
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156 }; |
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157 intlit.prototype.toCLines = function(vars, needsreturn) { |
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158 return [ (needsreturn ? 'return (object *)' : '' ) + this.toCLLExpr(vars) + ';' ]; |
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159 }; |
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160 |
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161 floatlit.prototype.toC = function() { |
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162 return 'make_float(' + this.val.toString() + ')'; |
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163 } |
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164 floatlit.prototype.toCLLExpr = function(vars) { |
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165 return this.val.toString(); |
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166 }; |
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167 floatlit.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 |
41 | 171 var declaredStrings = {}; |
172 var nextStringId = 0; | |
173 | |
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174 strlit.prototype.toC = function() { |
41 | 175 if (!(this.val in declaredStrings)) { |
176 //TODO: get the proper byte length | |
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177 toplevelcode += 'string str_' + nextStringId + ' = {{&string_meta, NULL}, ' + this.val.length + ', ' + this.val.length + ', "' + this.val.replace(/\\/g, '\\\\').replace(/"/g, '\\"').replace(/\n/g, '\\n').replace(/\r/g, '\\r') + '"};\n'; |
41 | 178 declaredStrings[this.val] = nextStringId++; |
179 } | |
180 return '((object *)&str_' + declaredStrings[this.val] + ')'; | |
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181 }; |
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182 strlit.prototype.toCLLExpr = function(vars) { |
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183 return '"' + this.val.replace(/\\/g, '\\\\').replace(/"/g, '\\"').replace(/\n/g, '\\n').replace(/\r/g, '\\r') + '"'; |
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184 }; |
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185 strlit.prototype.toCLines = function(vars, needsreturn) { |
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186 return [ (needsreturn ? 'return (object *)' : '' ) + this.toCLLExpr(vars) +';' ]; |
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187 }; |
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188 |
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189 listlit.prototype.toC = function() { |
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190 var ret = 'make_list(' + this.val.length; |
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191 for (var i = this.val.length-1; i >= 0; i--) { |
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192 ret += ', ' + this.val[i].toC(); |
38 | 193 } |
194 return ret + ')'; | |
195 } | |
196 | |
197 arraylit.prototype.toC = function() { | |
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198 var ret = 'make_array(' + this.val.length; |
38 | 199 for (var i = 0; i < this.val.length; i++) { |
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200 ret += ', ' + this.val[i].toC(); |
38 | 201 } |
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202 return ret + ')'; |
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203 } |
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204 |
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205 funcall.prototype.toC = function() { |
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206 var name = this.name[this.name.length-1] == ':' ? this.name.substr(0, this.name.length-1) : this.name; |
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207 if (name == 'foreign') { |
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208 if ((this.args[0] instanceof lambda) || (this.args[0] instanceof object)) { |
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209 return null; |
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210 } else if(this.args[0] instanceof symbol) { |
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211 return this.args[0].name; |
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212 } else { |
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213 throw new Error("Unexpected AST type for foreign:"); |
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214 } |
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215 } else if(name == 'llProperty:withType' || name == 'llProperty:withVars:andCode') { |
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216 return null; |
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217 } |
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218 var args = this.args.slice(0, this.args.length); |
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219 if (this.receiver) { |
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220 args.splice(0, 0, this.receiver); |
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221 } |
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222 var method = false; |
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223 var funinfo = this.symbols.find(name); |
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224 var start = 0; |
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225 if (!funinfo || funinfo.def instanceof setter || funinfo.type == 'toplevel') { |
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226 method = true; |
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227 } else { |
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228 switch(funinfo.type) |
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229 { |
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230 case 'self': |
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231 case 'parent': |
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232 var defargs = funinfo.def.args.length; |
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233 if (!defargs || funinfo.def.args[0].name != 'self') { |
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234 defargs ++ |
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235 } |
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236 if (args.length < defargs) { |
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237 if (funinfo.type == 'self') { |
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238 args.splice(0, 0, new symbol('self', this.symbols)); |
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239 } else { |
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240 var obj = (new symbol('self', this.symbols)).toC() + '->header.'; |
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241 for (var i = 0; i < funinfo.depth; ++i) { |
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242 obj += (i ? '->' : '') + 'parent'; |
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243 } |
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244 args.splice(0, 0, ', ' + obj); |
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245 start = 1; |
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246 } |
137
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247 } else if(!(args[0] instanceof symbol) || args[0].name != 'self') { |
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248 funinfo = null; |
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249 } |
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250 method = true; |
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251 break; |
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252 } |
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253 } |
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254 for (var i = start; i < args.length; i++) { |
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255 args[i] = ', ' + (!i && method ? '(object *)(' : '') + args[i].toC() + (!i && method ? ')' : ''); |
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256 } |
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257 var callpart; |
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258 if (method) { |
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259 if (funinfo && funinfo.type == 'self' && funinfo.def.name) { |
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260 callpart = funinfo.def.name + '(' + (funinfo.def.symbols.parent.needsenv ? (new symbol('self', this.symbols)).toC() + '->env' : 'NULL' ); |
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261 } else { |
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262 callpart = 'mcall(' + getMethodId(name) + '/* ' + name + ' */'; |
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263 } |
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264 } else { |
172
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265 var closVar = (new symbol(name, this.symbols)).toC(); |
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266 callpart = '((lambda *)' + closVar + ')->func(((lambda *)' + closVar + ')->env'; |
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267 } |
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268 return callpart + ', ' + args.length + args.join('') + ')'; |
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269 }; |
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270 funcall.prototype.toCTypeName = function() { |
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271 switch(this.name) |
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272 { |
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273 case 'ptr:': |
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274 case 'ptr': |
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275 var receiver = this.receiver ? this.receiver : this.args[0]; |
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276 return receiver.toCTypeName() + ' *'; |
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277 break; |
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278 case 'struct:': |
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279 case 'struct': |
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280 var receiver = this.receiver ? this.receiver : this.args[0]; |
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281 return 'struct ' + receiver.toCTypeName(); |
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282 break; |
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283 default: |
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284 throw new Error('invalid use of funcall expression where a C type name is expected'); |
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285 } |
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286 }; |
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287 funcall.prototype.toCLines = function(vars, needsreturn) { |
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288 var lines = []; |
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289 var name = this.name[this.name.length-1] == ':' ? this.name.substr(0, this.name.length-1) : this.name; |
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290 var args = this.args.slice(0, this.args.length); |
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291 if (this.receiver) { |
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292 args.splice(0, 0, [this.receiver]); |
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293 } |
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294 switch(name) |
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295 { |
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296 case 'if': |
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297 lines.push('if (' + this.args[0].toCLLExpr(vars) + ') {'); |
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298 var blines = this.args[1].toCLines(vars, needsreturn); |
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299 for (var i in blines) { |
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300 lines.push('\t' + blines[i]); |
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301 } |
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302 if (needsreturn) { |
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303 lines.push('} else {'); |
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304 lines.push('\t return module_false;'); |
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305 lines.push('}'); |
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306 } else { |
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307 lines.push('}'); |
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308 } |
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309 break; |
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310 case 'if:else': |
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311 lines.push('if (' + this.args[0].toCLLExpr(vars) + ') {'); |
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312 var blines = this.args[1].toCLines(vars, needsreturn); |
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313 for (var i in blines) { |
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314 lines.push('\t' + blines[i]); |
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315 } |
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316 lines.push('} else {'); |
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317 blines = this.args[2].toCLines(vars, needsreturn); |
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318 for (var i in blines) { |
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319 lines.push('\t' + blines[i]); |
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320 } |
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321 lines.push('}'); |
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322 break; |
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323 case 'while:do': |
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324 if (needsreturn) { |
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325 throw new Error("while:do can't be last statement in llMessage code block"); |
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326 } |
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327 lines.push('while (' + this.args[0].toCLLExpr(vars) + ') {'); |
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328 var blines = this.args[1].toCLines(vars); |
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329 for (var i in blines) { |
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330 lines.push('\t' + blines[i]); |
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331 } |
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332 lines.push('}'); |
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333 break; |
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334 default: |
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335 lines.push( (needsreturn ? 'return (object *)' : '') + this.toCLLExpr(vars) + ';'); |
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336 } |
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337 return lines; |
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338 }; |
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339 |
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340 funcall.prototype.toCLLExpr = function(vars) { |
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341 var name = this.name[this.name.length-1] == ':' ? this.name.substr(0, this.name.length-1) : this.name; |
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342 var args = this.args.slice(0, this.args.length); |
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343 if (this.receiver) { |
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344 if(this.args.length == 0) { |
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345 if (this.receiver instanceof symbol && this.receiver.name in vars && vars[this.receiver.name].substr(-1) != "*") { |
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346 return this.receiver.toCLLExpr(vars) + '.' + this.name; |
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347 } else { |
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348 return this.receiver.toCLLExpr(vars) + '->' + this.name; |
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349 } |
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350 } else if (this.args.length == 1 && name[name.length-1] == '!') { |
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351 if (this.receiver instanceof symbol && this.receiver.name in vars && vars[this.receiver.name].substr(-1) != "*") { |
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352 return this.receiver.toCLLExpr(vars) + '.' + this.name.substr(0, name.length-1) + ' = ' + args[0].toCLLExpr(vars); |
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353 } else { |
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354 return this.receiver.toCLLExpr(vars) + '->' + this.name.substr(0, name.length-1) + ' = ' + args[0].toCLLExpr(vars); |
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355 } |
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356 } else { |
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357 args.splice(0, 0, this.receiver); |
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358 } |
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359 } |
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360 switch(name) |
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361 { |
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362 case 'if': |
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363 return '((' + args[0].toCLLExpr(vars) + ') ? (' + args[1].toCLLExpr(vars) + ') : 0)'; |
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364 case 'if:else': |
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365 return '((' + args[0].toCLLExpr(vars) + ') ? (' + args[1].toCLLExpr(vars) + ') : (' + args[2].toCLLExpr(vars) + '))'; |
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366 case 'while:do': |
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367 throw new Error('while:do not allowed in expression context in llMessage block'); |
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368 case 'addr_of': |
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369 return '&(' + args[0].toCLLExpr(vars) + ')'; |
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370 case 'sizeof': |
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371 return 'sizeof(' + args[0].toCTypeName() + ')'; |
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372 case 'get': |
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373 return args[0].toCLLExpr(vars) + '[' + args[1].toCLLExpr(vars) + ']'; |
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374 case 'set': |
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375 return args[0].toCLLExpr(vars) + '[' + args[1].toCLLExpr(vars) + '] = ' + args[2].toCLLExpr(vars); |
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376 case 'not': |
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377 return '!(' + args[0].toCLLExpr(vars) + ')'; |
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378 case 'mcall': |
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379 if (args[0] instanceof symbol) { |
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380 args[0] = new intlit(getMethodId(args[0].name)); |
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381 } |
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382 default: |
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383 for (var i in args) { |
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384 args[i] = args[i].toCLLExpr(vars); |
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385 } |
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386 return name + '(' + args.join(', ') + ')'; |
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387 } |
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388 }; |
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389 |
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390 function cObject(name) { |
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391 this.name = name; |
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392 this.slots = {}; |
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393 this.properties = []; |
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394 this.values = []; |
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395 this.slotvars = {}; |
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396 this.includes = {}; |
59 | 397 this.parent = 'NULL'; |
398 this.init = []; | |
399 this.initmsgadded = false; | |
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400 } |
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401 |
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402 cObject.prototype.addInclude = function(includefile) { |
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403 this.includes[includefile] = true; |
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404 } |
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405 |
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406 cObject.prototype.addMessage = function(msgname, implementation) { |
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407 var methodid = getMethodId(msgname); |
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408 var trunc = methodid & 0xF; |
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409 if (!(trunc in this.slots)) { |
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410 this.slots[trunc] = []; |
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411 } |
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412 this.slots[trunc].push([methodid, '\t\t' + implementation.lines.join('\n\t\t') + '\n', msgname]); |
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413 if (!(trunc in this.slotvars)) { |
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414 this.slotvars[trunc] = {}; |
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415 } |
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416 for (var varname in implementation.vars) { |
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417 this.slotvars[trunc][varname] = implementation.vars[varname]; |
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418 } |
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419 } |
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420 |
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421 cObject.prototype.addProperty = function(propname, value, type) { |
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422 if (type != undefined) { |
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423 this.properties.push([propname, type]); |
42
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424 if (value !== null) { |
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425 this.values.push(value); |
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426 } |
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427 } else { |
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428 var escaped = escapeCName(propname); |
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429 this.addMessage(propname, { |
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430 vars: {}, |
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431 lines: [ |
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432 'return self->' + escaped + ';' |
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433 ]}); |
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434 this.addMessage(propname + '!', { |
59 | 435 vars: {}, |
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436 lines: [ |
59 | 437 'self->' + escaped + ' = va_arg(args, object *);', |
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438 'return (object *)self;' |
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439 ]}); |
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440 this.properties.push(escaped); |
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441 this.values.push(value); |
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442 } |
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443 } |
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444 |
59 | 445 cObject.prototype.addInit = function(statement) { |
446 this.init.push(statement); | |
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447 }; |
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448 |
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449 cObject.prototype.addImport = function(symbols, source) { |
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450 this.imported.push(source); |
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451 var importNum = imported.length - 1; |
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452 if (symbols) { |
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453 each(symbols, function(i, sym) { |
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454 this.addMessage(sym.name, { |
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455 vars: {}, |
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456 lines: [ |
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457 'return self->import_' + importNum + '->meta->meth_lookup[method_id & 0xF](method_id, num_args, self->import_' + importNum + ', args);' |
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458 ] |
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459 }); |
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460 }); |
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461 } else { |
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462 //TODO: handle proxying for unimplemented methods |
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463 } |
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464 }; |
59 | 465 |
466 cObject.prototype.checkInitMsg = function() { | |
467 if (!this.initmsgadded && this.init.length) { | |
468 var init = this.init.slice(0, this.init.length); | |
469 init.push('return (object *)self;'); | |
470 this.addMessage('_init', { | |
471 vars: {}, | |
472 lines: init | |
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473 }); |
59 | 474 this.initmsgadded = true; |
475 } | |
476 } | |
477 | |
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478 cObject.prototype.populateSymbols = function() {}; |
59 | 479 |
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480 cObject.prototype.toEarlyCDef = function() { |
59 | 481 this.checkInitMsg(); |
48
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482 var includes = ''; |
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483 for (var file in this.includes) { |
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484 includes += '#include ' + file + '\n'; |
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485 } |
54 | 486 var objdef = 'typedef struct ' + this.name + ' {\n\tobject header;\n'; |
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487 for (var i in this.properties) { |
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488 if (this.properties[i] instanceof Array) { |
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489 objdef += '\t' + this.properties[i][1] + ' ' + this.properties[i][0] + ';\n'; |
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490 } else { |
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491 objdef += '\tobject * ' + this.properties[i] + ';\n' |
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492 } |
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493 } |
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494 objdef += '} ' + this.name + ';\nobj_meta ' + this.name + '_meta;\n'; |
48
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495 return includes + objdef; |
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496 } |
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497 |
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498 cObject.prototype.toCDef = function() { |
59 | 499 this.checkInitMsg(); |
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500 var slotdefs = ''; |
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501 var metadef = 'obj_meta ' + this.name + '_meta = {sizeof(' + this.name +'), {'; |
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502 for (var i = 0; i < 16; i++) { |
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503 if (i) { |
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504 metadef += ', '; |
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505 } |
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506 if (i in this.slots) { |
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507 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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508 this.name + ' *self = (' + this.name + ' *)oself;\n'; |
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509 for (var varname in this.slotvars[i]) { |
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510 slotdefs += '\t' + this.slotvars[i][varname] + ' ' + varname + ';\n'; |
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511 } |
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512 if (this.slots[i].length == 1) { |
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513 slotdefs += '\tif (method_id == ' + this.slots[i][0][0] + ') { /* ' + this.slots[i][0][2] + '*/\n' + |
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514 '\t\t' + this.slots[i][0][1] + '\n' + |
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515 '\t}\n' + |
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516 '\treturn no_impl(method_id, num_params, (object *)self, args);\n}\n'; |
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517 } else { |
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518 slotdefs += '\tswitch(method_id) {\n'; |
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519 for (j in this.slots[i]) { |
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520 slotdefs += '\t\tcase ' + this.slots[i][j][0] + ': /* ' + this.slots[i][j][2] + '*/\n' + |
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521 '\t\t\t' + this.slots[i][j][1] + '\n'; |
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522 } |
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523 slotdefs += '\t\tdefault:\n' + |
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524 '\t\t\treturn no_impl(method_id, num_params, (object *)self, args);\n\t}\n}\n'; |
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525 |
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526 } |
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527 metadef += this.name + '_slot_' + i; |
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528 } else { |
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529 metadef += 'no_impl'; |
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530 } |
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531 } |
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532 metadef += '}};\n'; |
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533 return slotdefs + metadef; |
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534 } |
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535 |
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536 cObject.prototype.toCInstance = function() { |
59 | 537 this.checkInitMsg(); |
538 var ret = 'make_object(&' + this.name + '_meta, ' + this.parent + ', ' + this.values.length + (this.values.length ? ', ' : '') + this.values.join(', ') + ')'; | |
539 if (this.initmsgadded) { | |
540 ret = 'mcall(' + getMethodId('_init') + ', 1, ' + ret + ')' | |
541 } | |
542 return ret; | |
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543 } |
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544 |
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545 cObject.prototype.toC = function() { |
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546 forwarddec += this.toEarlyCDef(); |
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547 toplevelcode += this.toCDef(); |
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548 return this.toCInstance(); |
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549 } |
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550 |
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551 var nextobject = 0; |
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552 |
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553 |
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554 object.prototype.toCObject = function() { |
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555 var messages = this.messages; |
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556 if (!this.name) { |
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557 this.name = 'object_' + nextobject++; |
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558 } |
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559 var me = new cObject(this.name); |
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560 this.symbols.typename = me.name; |
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561 if (this.symbols.needsenv) { |
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562 me.addProperty('env', this.symbols.envVar(), 'struct ' + this.symbols.getEnvType() + ' * '); |
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563 me.hasenv = true; |
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564 } |
59 | 565 if (this.symbols.needsparent && !(this.symbols.parent instanceof osymbols)) { |
566 me.parent = '(object *)(' + (new symbol('self', this.symbols.parent)).toC() + ')'; | |
567 } | |
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568 for (var i in messages) { |
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569 if (messages[i] instanceof funcall) { |
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570 if (messages[i].name == 'import:' && messages[i].args.length == 1) { |
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571 me.addImport(false, messages[i].args[0]); |
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572 } else if(messages[i].name == 'import:from:' && messages[i].args.length == 2) { |
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573 var importsyms = []; |
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574 each(messages[i].args[0].val, function(i, el) { |
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575 if (!(el instanceof symbol)) { |
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576 throw new Error('Names in import:from statement must be symbols'); |
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577 } |
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578 importsyms.push(el); |
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579 }); |
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580 me.addImport(importsyms, messages[i].args[1]); |
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581 } else if(messages[i].name == 'llProperty:withType:' && messages[i].args.length == 2) { |
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582 me.addProperty(messages[i].args[0].name, null, messages[i].args[1].toCTypeName()) |
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583 } else if(messages[i].name == 'llMessage:withVars:andCode:' && messages[i].args.length == 3) { |
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584 var msgname = messages[i].args[0].name |
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585 var rawvars = messages[i].args[1].expressions; |
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586 var vars = {}; |
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587 for(var v in rawvars) { |
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588 vars[rawvars[v].symbol.name] = rawvars[v].expression.toCTypeName(); |
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589 } |
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590 me.addMessage(msgname, { |
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591 vars: vars, |
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592 lines: messages[i].args[2].toCLines(vars, true) |
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593 }); |
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594 } else if(messages[i].name == 'includeSystemHeader:' && messages[i].args.length == 1) { |
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595 me.addInclude("<" + messages[i].args[0].val + ">"); |
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596 } else { |
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597 |
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598 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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599 } |
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600 } else { |
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601 messages[i].toCObject(me); |
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602 } |
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603 } |
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604 |
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605 return me; |
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606 }; |
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607 |
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608 object.prototype.toC = function() { |
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609 return this.toCObject().toC(); |
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610 }; |
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611 |
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612 var toplevelcode; |
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613 var forwarddec; |
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614 |
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615 function addBinaryOp(cobject, opname, cop, objtype) |
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616 { |
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617 cobject.addMessage(opname, { |
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618 vars: {ret: objtype + ' *', argb: objtype +' *'}, |
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619 lines: [ |
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620 'argb = va_arg(args, ' + objtype + ' *);', |
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621 'ret = (' + objtype + ' *)make_object(&' + objtype + '_meta, NULL, 0);', |
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622 'ret->num = self->num ' + cop + ' argb->num;', |
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623 'return &(ret->header);' |
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624 ] |
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625 }); |
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626 } |
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627 |
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628 function addCompOp(cobject, opname, cop, objtype) |
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629 { |
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630 cobject.addMessage(opname, { |
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631 vars: {argb: objtype + ' *'}, |
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632 lines: [ |
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633 'argb = va_arg(args, ' + objtype + ' *);', |
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634 'if (self->num ' + cop + ' argb->num) {', |
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635 ' return ' + toplevel.moduleVar('true') + ';', |
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636 '}', |
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637 'return ' + toplevel.moduleVar('false') + ';', |
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638 ] |
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639 }); |
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640 } |
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641 |
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642 function makeInt(bits, unsigned) |
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643 { |
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644 var typename = 'obj_' + (unsigned ? 'u' : '') + 'int' + bits; |
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645 var intObj = new cObject(typename); |
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646 intObj.addProperty('num', null, (unsigned ? 'u' : '') + 'int' + bits +'_t'); |
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647 addBinaryOp(intObj, 'ADD_', '+', typename); |
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648 addBinaryOp(intObj, 'SUB_', '-', typename); |
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649 addBinaryOp(intObj, 'MUL_', '*', typename); |
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650 addBinaryOp(intObj, 'DIV_', '/', typename); |
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651 addBinaryOp(intObj, 'MOD_', '%', typename); |
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652 addBinaryOp(intObj, 'or', '|', typename); |
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653 addBinaryOp(intObj, 'xor', '^', typename); |
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654 addBinaryOp(intObj, 'and', '&', typename); |
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655 addBinaryOp(intObj, 'lshift:by', '<<', typename); |
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656 addBinaryOp(intObj, 'rshift:by', '>>', typename); |
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657 addCompOp(intObj, 'LT_', '<', typename); |
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658 addCompOp(intObj, 'GT_', '>', typename); |
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659 addCompOp(intObj, 'EQ_', '==', typename); |
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660 addCompOp(intObj, 'NEQ_', '!=', typename); |
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661 addCompOp(intObj, 'GEQ_', '>=', typename); |
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662 addCompOp(intObj, 'LEQ_', '<=', typename); |
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663 intObj.addInclude('<string.h>'); |
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664 //-9223372036854775808 |
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665 //01234567890123456789 |
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666 intObj.addMessage('string', { |
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667 vars: {str: 'string *'}, |
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668 lines: [ |
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669 'str = (string *)make_object(&string_meta, NULL, 0);', |
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670 'str->data = GC_MALLOC(' + (bits == 64 ? 21 : 12) + ');', |
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671 'sprintf(str->data, "%' + (bits == 64 ? 'l' : '') + (unsigned ? 'u' : 'd') + '", self->num);', |
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672 'str->len = str->bytes = strlen(str->data);', |
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673 'return &(str->header);' |
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674 ] |
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675 }); |
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676 //7FFFFFFFFFFFFFFF |
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677 //01234567890123456789 |
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678 intObj.addMessage('hex', { |
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679 vars: {str: 'string *'}, |
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680 lines: [ |
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681 'str = (string *)make_object(&string_meta, NULL, 0);', |
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682 'str->data = GC_MALLOC(' + (bits == 64 ? 17 : 9) + ');', |
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683 'sprintf(str->data, "%' + (bits == 64 ? 'l' : '') +'X", self->num);', |
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684 'str->len = str->bytes = strlen(str->data);', |
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685 'return &(str->header);' |
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686 ] |
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687 }); |
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688 intObj.addMessage('isInteger?', { |
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689 vars: {}, |
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690 lines: [ |
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691 'return ' + toplevel.moduleVar('true') + ';' |
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692 ] |
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693 }); |
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694 intObj.addMessage('hash', { |
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695 vars: {}, |
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696 lines: [ |
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697 'return &(self->header);' |
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698 ] |
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699 }); |
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700 intObj.addMessage('signed?', { |
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701 vars: {}, |
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702 lines: [ |
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703 'return ' + toplevel.moduleVar(unsigned ? 'false' : 'true') + ';' |
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704 ] |
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705 }); |
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706 var sizes = [8, 16, 32, 64]; |
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707 var destunsigned = [false, true]; |
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708 for (var i = 0; i < sizes.length; i++) { |
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709 size = sizes[i]; |
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710 for (var j = 0; j < destunsigned.length; j++) { |
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711 uns = destunsigned[j]; |
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712 if (uns == unsigned && size == bits) { |
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713 intObj.addMessage((uns ? 'u' : '') + 'int' + size, { |
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714 vars: {}, |
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715 lines: [ |
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716 'return &(self->header);' |
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717 ] |
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718 }); |
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719 } else { |
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720 var retType = 'obj_' + (uns ? 'u' : '') + 'int' + size; |
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721 var retName = 'ret' + (uns ? 'u' : '') + size; |
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722 var vars = {}; |
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723 vars[retName] = retType + ' *'; |
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724 intObj.addMessage((uns ? 'u' : '') + 'int' + size, { |
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725 |
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726 vars: vars, |
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727 lines: [ |
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728 retName + ' = ('+retType+' *)make_object(&' + retType +'_meta, NULL, 0);', |
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729 retName + '->num = self->num;', |
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730 'return &(' + retName + '->header);' |
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731 ] |
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732 }); |
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733 } |
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734 } |
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735 } |
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736 |
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737 return intObj; |
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738 } |
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739 |
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740 function makeArray() |
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741 { |
84
9811040704ac
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742 var arrayfile = toplevel.names['array']; |
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|
743 var ast = parseFile(arrayfile.path + '/' + arrayfile.file); |
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744 ast.name = 'array'; |
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745 ast.populateSymbols(toplevel); |
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746 return ast.toCObject(); |
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747 } |
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|
748 |
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|
749 function makeString() |
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750 { |
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751 var arrayfile = toplevel.names['string']; |
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|
752 var ast = parseFile(arrayfile.path + '/' + arrayfile.file); |
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753 ast.name = 'string'; |
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754 ast.populateSymbols(toplevel); |
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755 return ast.toCObject(); |
45
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|
756 } |
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|
757 |
2a9c6eed0c70
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|
758 function makelambda() |
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759 { |
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760 var clos = new cObject('lambda'); |
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761 clos.addProperty('env', null, 'void *'); |
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762 clos.addProperty('func', null, 'closure_func'); |
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763 clos.addMessage('while:do', { |
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764 vars: {action: 'lambda *', ret: 'object *'}, |
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765 lines: [ |
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766 'action = va_arg(args, lambda *);', |
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767 'ret = ' + toplevel.moduleVar('true') + ';', |
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768 'while(' + toplevel.moduleVar('true') + ' == ccall(self, 0)) {', |
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769 ' ccall(action, 0);', |
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770 '}', |
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771 'return ret;' |
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772 ] |
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773 }); |
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774 return clos; |
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775 } |
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776 |
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777 function builtinTypes() |
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778 { |
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779 return [makeInt(64, false), makeInt(32, false), makeInt(16, false), makeInt(8, false), |
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780 makeInt(64, true) , makeInt(32, true), makeInt(16, true), makeInt(8, true), |
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781 makeArray(), makeString(), makelambda()]; |
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782 } |
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783 |
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784 function addBuiltinModules(toplevel) |
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785 { |
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786 var os = new cObject('mod_obj_os'); |
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787 os.addInclude('<sys/stat.h>'); |
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788 os.addInclude('<fcntl.h>'); |
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789 os.addInclude('<stdlib.h>'); |
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790 os.addInclude('<time.h>'); |
168 | 791 os.addInclude('<unistd.h>'); |
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792 os.addMessage('write', { |
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793 vars: {str: 'string *', intret: 'obj_int32 *', filedes: 'obj_int32 *'}, |
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794 lines: [ |
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795 'filedes = va_arg(args, obj_int32 *);', |
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796 'str = va_arg(args, string *);', |
59 | 797 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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798 'intret->num = write(filedes->num, str->data, str->bytes);', |
59 | 799 'return &(intret->header);' |
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800 ] |
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801 }); |
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802 os.addMessage('read', { |
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803 vars: {str: 'string *', size: 'obj_int32 *', filedes: 'obj_int32 *'}, |
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804 lines: [ |
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805 'filedes = va_arg(args, obj_int32 *);', |
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806 'size = va_arg(args, obj_int32 *);', |
59 | 807 'str = (string *)make_object(&string_meta, NULL, 0);', |
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808 'str->data = GC_MALLOC_ATOMIC(size->num + 1);', |
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809 'str->len = str->bytes = read(filedes->num, str->data, size->num);', |
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810 'if (str->bytes < 0) { str->bytes = str->len = 0; }', |
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811 'str->data[str->bytes] = 0;', |
59 | 812 'return &(str->header);' |
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813 ] |
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814 }); |
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815 os.addMessage('open', { |
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816 vars: {str: 'string *', flags: 'obj_int32 *', filedes: 'obj_int32 *', perm: 'obj_int32 *'}, |
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817 lines: [ |
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818 'str = va_arg(args, string *);', |
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819 'flags = va_arg(args, obj_int32 *);', |
59 | 820 'filedes = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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821 'if (num_params == 3) {', |
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822 ' filedes->num = open(str->data, flags->num);', |
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823 '} else if (num_params == 4) {', |
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824 ' perm = va_arg(args, obj_int32 *);', |
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825 ' filedes->num = open(str->data, flags->num, perm->num);', |
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826 '} else {', |
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827 ' filedes->num = -1;', |
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828 '}', |
59 | 829 'return &(filedes->header);' |
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830 ] |
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831 }); |
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832 os.addMessage('close', { |
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833 vars: {filedes: 'obj_int32 *', intret: 'obj_int32 *'}, |
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834 lines: [ |
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835 'filedes = va_arg(args, obj_int32 *);', |
59 | 836 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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837 'intret->num = close(filedes->num);', |
59 | 838 'return &(intret->header);' |
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839 ] |
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840 }); |
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841 os.addMessage('O_RDONLY', { |
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842 vars: {intret: 'obj_int32 *'}, |
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843 lines: [ |
59 | 844 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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845 'intret->num = O_RDONLY;', |
59 | 846 'return &(intret->header);' |
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847 ] |
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848 }); |
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849 os.addMessage('O_WRONLY', { |
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850 vars: {intret: 'obj_int32 *'}, |
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851 lines: [ |
59 | 852 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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853 'intret->num = O_WRONLY;', |
59 | 854 'return &(intret->header);' |
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855 ] |
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856 }); |
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857 os.addMessage('O_RDWR', { |
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858 vars: {intret: 'obj_int32 *'}, |
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859 lines: [ |
59 | 860 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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861 'intret->num = O_RDWR;', |
59 | 862 'return &(intret->header);' |
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863 ] |
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864 }); |
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865 os.addMessage('O_CREAT', { |
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866 vars: {intret: 'obj_int32 *'}, |
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867 lines: [ |
59 | 868 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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869 'intret->num = O_CREAT;', |
59 | 870 'return &(intret->header);' |
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871 ] |
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872 }); |
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873 os.addMessage('O_APPEND', { |
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874 vars: {intret: 'obj_int32 *'}, |
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875 lines: [ |
59 | 876 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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877 'intret->num = O_APPEND;', |
59 | 878 'return &(intret->header);' |
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879 ] |
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880 }); |
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881 os.addMessage('O_TRUNC', { |
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882 vars: {intret: 'obj_int32 *'}, |
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883 lines: [ |
59 | 884 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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885 'intret->num = O_TRUNC;', |
59 | 886 'return &(intret->header);' |
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887 ] |
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888 }); |
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889 os.addMessage('rand', { |
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890 vars: {intret: 'obj_int32 *'}, |
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891 lines: [ |
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892 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', |
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893 'intret->num = rand();', |
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894 'return &(intret->header);' |
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895 ] |
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896 }); |
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897 os.addMessage('rand64', { |
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898 vars: {intret64: 'obj_int64 *'}, |
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899 lines: [ |
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900 'intret64 = (obj_int64 *)make_object(&obj_int64_meta, NULL, 0);', |
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901 'intret64->num = (((int64_t)rand()) << 32 ) | rand();', |
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902 'return &(intret64->header);' |
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903 ] |
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904 }); |
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905 os.addMessage('srand', { |
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906 vars: {oseed: 'object *', seed: 'obj_int32 *'}, |
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907 lines: [ |
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908 'oseed = va_arg(args, object *);', |
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909 'seed = mcall(' + getMethodId("int32") + ', 1, oseed);', |
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910 'srand(seed->num);', |
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911 'return &(seed->header);' |
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912 ] |
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913 }); |
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914 os.addMessage('time', { |
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915 vars: {intret64: 'obj_int64 *'}, |
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916 lines: [ |
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917 'intret64 = (obj_int64 *)make_object(&obj_int64_meta, NULL, 0);', |
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918 'intret64->num = time(NULL);', |
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919 'return &(intret64->header);' |
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920 ] |
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921 }); |
168 | 922 os.addMessage('sleep', { |
923 vars: {osecs: 'object *', secs: 'obj_int32 *', intret: 'obj_int32 *'}, | |
924 lines: [ | |
925 'osecs = va_arg(args, object *);', | |
926 'secs = mcall(' + getMethodId("int32") + ', 1, osecs);', | |
927 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);', | |
928 'intret->num = sleep(secs->num);', | |
929 'return &(intret->header);' | |
930 ] | |
931 }); | |
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932 toplevel.names['os'] = os; |
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933 } |
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934 |
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935 modulefile.prototype.toC = function(){ |
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936 return this.ast.toCModuleInstance(); |
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937 }; |
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938 |
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939 function processUsedToplevel(toplevel) |
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940 { |
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941 var alwaysused = ['true', 'false', 'list']; |
48
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942 var ret = ''; |
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943 var modulenum = 0; |
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944 var visited = {}; |
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945 for (var i in alwaysused) { |
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946 toplevel.used[alwaysused[i]] = true; |
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947 } |
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948 var newused = Object.keys(toplevel.used); |
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949 var allused = newused; |
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950 while (newused.length) { |
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951 for (var i in newused) { |
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952 debugprint('//---module', newused[i], '--- populate symbols'); |
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953 forwarddec += 'object * ' + toplevel.moduleVar(newused[i]) + ';\n'; |
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954 toplevel.names[newused[i]].populateSymbols(toplevel); |
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955 visited[newused[i]] = true; |
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956 } |
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957 newused = []; |
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958 for (var symbol in toplevel.used) { |
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959 if (!(symbol in visited)) { |
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960 debugprint('//found new usage of module', symbol); |
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961 newused.push(symbol); |
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962 allused.push(symbol); |
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963 } |
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964 } |
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965 } |
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966 |
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967 for (var i = allused.length-1; i >= 0; i--) { |
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968 var symbol = allused[i]; |
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969 debugprint('//---module', symbol, '(' + i +')--- compile'); |
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970 assignNames.push(symbol); |
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971 ret += '\t' + toplevel.moduleVar(symbol) + ' = ' + toplevel.names[symbol].toC() + ';\n'; |
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972 assignNames.pop(); |
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973 } |
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974 return ret; |
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975 } |
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976 |
45
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977 function makeCProg(obj) |
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978 { |
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979 forwarddec = toplevelcode = ''; |
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980 assignNames = []; |
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981 var builtins = builtinTypes(); |
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982 for (var i in builtins) { |
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983 forwarddec += builtins[i].toEarlyCDef(); |
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984 toplevelcode += builtins[i].toCDef(); |
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985 } |
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986 addBuiltinModules(toplevel); |
54 | 987 debugprint('//------POPULATING SYMBOLS-----'); |
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988 obj.populateSymbols(toplevel); |
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989 var moduleinit = processUsedToplevel(toplevel); |
54 | 990 debugprint('//------COMPILING AST-----'); |
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991 var rest = 'object * mainModule() {\n' + moduleinit + '\tmain_module = ' + obj.toCModuleInstance() + ';\n\treturn main_module;\n}\n'; |
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992 return '#include "runtime/proghead.inc"\n' + |
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993 '#define METHOD_ID_MAIN ' + getMethodId('main') + '\n' + |
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994 '#define METHOD_ID_EMPTY ' + getMethodId('empty') + '\n' + |
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995 '#define METHOD_ID_CONS ' + getMethodId(getOpMethodName('|')) + '\n' + |
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996 forwarddec + toplevelcode + rest + '#include "runtime/progfoot.inc"\n'; |
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997 } |
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998 |
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999 object.prototype.toCModule = function() { |
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1000 return makeCProg(this); |
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1001 } |
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1002 |
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1003 object.prototype.toCModuleInstance = function() { |
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1004 return this.toC(); |
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1005 } |
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1006 |
31
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1007 lambda.prototype.toC = function() { |
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1008 var args = this.args ? this.args.slice(0, this.args.length) : []; |
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1009 var exprs = this.expressions; |
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1010 var assignPath = assignNames.join('<-'); |
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1011 debugprint('//', this.name, assignPath); |
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1012 var addedTypeDef = false; |
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1013 if (Object.keys(this.symbols.closedover).length) { |
96
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1014 this.symbols.envtype = this.name + '_env'; |
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1015 forwarddec += 'typedef struct ' + this.symbols.envtype + ' ' + this.symbols.envtype + ';\n' |
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1016 var addedTypeDef = true; |
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1017 } |
31
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1018 if (this.selftype) { |
34
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1019 this.symbols.defineVar('self', this.selftype); |
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1020 if (args[0] && args[0].cleanName() == 'self') { |
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1021 args.splice(0, 1); |
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1022 } |
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|
1023 var offset = 1; |
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|
1024 } else { |
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|
1025 var offset = 0; |
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1026 } |
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1027 for (var i = 0; i < args.length; ++i) { |
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1028 var argname = args[i].toC(); |
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1029 |
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1030 args[i] = (argname.indexOf('->') < 0 ? '\tobject * ' : '\t') + argname + ' = va_arg(args, object *);\n'; |
31
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1031 } |
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|
1032 var compiled = [] |
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|
1033 for (var i in exprs) { |
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|
1034 var js = exprs[i].toC(); |
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|
1035 if (js) { |
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|
1036 compiled.push(indent(js)); |
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|
1037 } |
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1038 } |
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1039 if (compiled.length) { |
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1040 if (exprs[exprs.length - 1] instanceof assignment) { |
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|
1041 compiled.push('return ' + exprs[exprs.length - 1].symbol.toC() + ';'); |
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1042 } else { |
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1043 compiled[compiled.length-1] = 'return (object *)(' + compiled[compiled.length-1] + ');'; |
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1044 } |
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1045 } |
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1046 exprs = compiled; |
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|
1047 |
34
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1048 if (Object.keys(this.symbols.closedover).length) { |
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|
1049 if (!addedTypeDef) { |
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Mike Pavone <pavone@retrodev.com>
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146
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1050 for (var key in this.symbols.closedover) { |
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1051 print(key, ": ", this.symbols.closedover[key]); |
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Mike Pavone <pavone@retrodev.com>
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|
1052 } |
156
d6e79885bd3b
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155
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|
1053 throw new Error('this.symbols.closedover is not empty, but it was when compilation of ' + this.name + ' "' + assignPath + '" started'); |
155
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146
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|
1054 } |
96
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95
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|
1055 forwarddec += 'struct ' + this.name + '_env {\n'; |
57
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Mike Pavone <pavone@retrodev.com>
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55
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|
1056 if (this.symbols.needsParentEnv) { |
08ae75d90dc2
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55
diff
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|
1057 forwarddec += '\tstruct ' + this.symbols.parentEnvType() + ' * parent;\n'; |
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1058 } |
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1059 for (var varname in this.symbols.closedover) { |
54 | 1060 if (varname == 'self' && this.selftype) { |
1061 forwarddec += '\tstruct ' + this.selftype + ' * self;\n'; | |
1062 } else { | |
1063 forwarddec += '\tobject * ' + escapeCName(varname) + ';\n'; | |
1064 } | |
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1065 } |
96
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|
1066 forwarddec += '};\n' |
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|
1067 |
96
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|
1068 var myenvinit = '\t' + this.name + '_env * myenv = GC_MALLOC(sizeof(' + this.name + '_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>
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57
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|
1069 if (this.symbols.needsParentEnv) { |
7b454d100dc8
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|
1070 myenvinit += '\tmyenv->parent = env;\n'; |
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|
1071 } |
96
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|
1072 this.symbols.envtype = this.name + '_env'; |
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|
1073 } else { |
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|
1074 var myenvinit = ''; |
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1075 } |
96
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|
1076 forwarddec += 'object *' + this.name + ' (' + this.symbols.parentEnvType() + ' * env, uint32_t num_args, ...);\n'; |
121
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|
1077 |
155
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|
1078 toplevelcode += '//' + assignPath + "\n"; |
96
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95
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|
1079 toplevelcode += 'object * ' + this.name + ' ( ' + this.symbols.parentEnvType() + ' * env, uint32_t num_args, ...) {\n\tva_list args;\n' + myenvinit + '\tva_start(args, num_args);\n'; |
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1080 if (this.selftype) { |
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1081 var selfvar = (new symbol('self', this.symbols)).toC(); |
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1082 if (selfvar == 'self') { |
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34
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|
1083 toplevelcode += '\t' + this.selftype + ' * self = va_arg(args, ' + this.selftype + ' *);\n'; |
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1084 } else { |
35
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|
1085 toplevelcode += '\t' + selfvar + ' = va_arg(args, ' + this.selftype + ' *);\n'; |
34
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1086 } |
121
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|
1087 |
31
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1088 } |
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|
1089 toplevelcode += args.join('') + '\tva_end(args);\n' + exprs.join(';\n\t') + '\n}\n'; |
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|
1090 |
42
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|
1091 if (this.selftype) { |
60
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1092 return this.name; |
42
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41
diff
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|
1093 } else { |
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41
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|
1094 if (this.symbols.parentEnvType() != 'void') { |
55
93ddb4ad6fcb
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Mike Pavone <pavone@retrodev.com>
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54
diff
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|
1095 if (this.symbols.parent.passthruenv) { |
42
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|
1096 var envvar = 'env'; |
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|
1097 } else { |
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|
1098 var envvar = 'myenv'; |
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1099 } |
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1100 debugprint('//' + this.name, 'has envvar:', envvar, 'num vars closed over:', Object.keys(this.symbols.closedover).length); |
60
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1101 return 'make_lambda(' + envvar + ', (closure_func)' + this.name + ')'; |
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1102 } else { |
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1103 toplevelcode += 'lambda ' + this.name + '_obj = {{&lambda_meta, NULL}, NULL, ' + this.name + '};\n'; |
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1104 return '((object *)&' + this.name + '_obj)'; |
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1105 } |
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1106 } |
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1107 }; |
60
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|
1108 lambda.prototype.toCModuleInstance = function() { |
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|
1109 this.toC(); |
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1110 return this.name + '(NULL, 0)'; |
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|
1111 }; |
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|
1112 lambda.prototype.toCObject = function(typename) { |
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1113 this.selftype = typename; |
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1114 return this.toC(); |
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1115 }; |
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1116 lambda.prototype.toCModule = function() { |
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1117 return makeCProg(this); |
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1118 }; |
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1119 lambda.prototype.toCLines = function(vars, needsreturn) { |
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1120 var lines = []; |
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1121 for (var i in this.args) { |
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1122 var name = this.args[i].name; |
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1123 if (name[0] == ':') { |
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1124 name = name.substr(1); |
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1125 } |
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1126 if(name != 'self') { |
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1127 lines.push(name + ' = va_arg(args, ' + vars[name] + ');'); |
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1128 } |
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1129 } |
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1130 for (var i in this.expressions) { |
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1131 var exprlines = this.expressions[i].toCLines(vars, needsreturn && i == this.expressions.length - 1); |
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1132 for (var j in exprlines) { |
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1133 lines.push('\t' + exprlines[j]); |
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1134 } |
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1135 } |
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1136 return lines; |
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1137 } |
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1138 lambda.prototype.toCLLExpr = function(vars) { |
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1139 if (this.expressions.length != 1) { |
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1140 throw new Error('lambda in expression context must have a single statement in llMessage block'); |
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1141 } |
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1142 return this.expressions[0].toCLLExpr(vars); |
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1143 } |
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1144 |
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1145 assignment.prototype.toC = function() { |
54 | 1146 debugprint('//assignment', this.symbol.name); |
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1147 var existing = this.symbols.find(this.symbol.name); |
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1148 var prefix = ''; |
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1149 assignNames.push(this.symbol.name); |
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1150 var val = this.expression.toC(); |
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1151 assignNames.pop(this.symbol.name); |
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1152 if (val === null) { |
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1153 return null; |
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1154 } |
38 | 1155 if (existing.type == 'local' && !existing.isdeclared) { |
1156 prefix = 'object *'; | |
1157 this.symbols.declareVar(this.symbol.name); | |
54 | 1158 debugprint('//declared var', this.symbol.name); |
38 | 1159 } |
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1160 return prefix + this.symbol.toC() + ' = ' + val; |
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1161 }; |
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1162 assignment.prototype.toCObject = function(cobj) { |
54 | 1163 debugprint('//message definition', this.symbol.name); |
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1164 assignNames.push('#' + this.symbol.name); |
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1165 if (this.expression.toCObject) { |
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1166 var val = this.expression.toCObject(cobj.name); |
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1167 } else { |
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1168 var val = this.expression.toC(); |
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1169 } |
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1170 assignNames.pop(); |
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1171 if (val === null) { |
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1172 return; |
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1173 } |
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1174 if (this.expression instanceof lambda) { |
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1175 var params = ['((object *)self)']; |
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1176 var paramget = ''; |
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1177 var messagevars = {}; |
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1178 for (var i in this.expression.args) { |
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1179 var escaped = escapeCName(this.expression.args[i].cleanName()); |
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1180 if (escaped != 'self') { |
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1181 messagevars[escaped] = 'object *'; |
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1182 params.push(escaped); |
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1183 paramget += escaped + ' = va_arg(args, object *); '; |
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1184 } |
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1185 } |
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1186 cobj.addMessage(getOpMethodName(this.symbol.name), { |
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1187 vars: messagevars, |
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1188 lines: [paramget + 'return ' + val + '(' + (cobj.hasenv ? 'self->env' : 'NULL') + ', ' + params.length + (params.length ? ', ' : '') + params.join(', ') + ');'] |
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1189 }); |
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1190 } else { |
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1191 cobj.addProperty(this.symbol.name, val); |
59 | 1192 if (this.expression instanceof object && this.expression.symbols.needsparent) { |
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1193 cobj.addInit('self->' + escapeCName(this.symbol.name) + '->parent = (object *)self;'); |
59 | 1194 } |
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1195 } |
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1196 }; |
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1197 assignment.prototype.toCLines = function(vars, needsreturn) { |
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1198 return [(needsreturn ? 'return ' : '') + this.symbol.toCLLExpr(vars) + ' = ' + this.expression.toCLLExpr(vars) + ';'] |
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1199 }; |