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annotate cbackend.js @ 42:4e983fe32047

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Fix closures as methods so that private vars work
author Mike Pavone <pavone@retrodev.com>
date Thu, 12 Jul 2012 20:14:15 -0700
parents 0558dad9d061
children 27a2167663dd
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1 var mainModule;
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2 var modules = {};
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3
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4 var nextmethodId = 0;
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5 var methodIds = {};
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6 function getMethodId(methodName)
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7 {
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8 if (!(methodName in methodIds)) {
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9 methodIds[methodName] = nextmethodId++;
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10
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11 }
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12 return methodIds[methodName];
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13 }
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14
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15 function importSym(obj, src, key)
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16 {
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17 if(!(key in src)) {
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18 throw new Error(key +' not found in source object for import');
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19 }
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20 if(key in obj) {
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21 throw new Error(key +' already exists in target object for import')
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22 }
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23 obj[key] = src[key];
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24 }
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25
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26 function doImport(obj, src, symlist)
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27 {
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28 if (symlist === undefined) {
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29 each(src, function(key,val) {
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30 if (key != 'parent') {
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31 importSym(obj, src, key);
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32 }
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33 });
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34 } else {
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35 for (var i = 0; i < symlist.length; ++i) {
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36 importSym(obj, src, symlist[i]);
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37 }
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38 }
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39 return obj;
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40 }
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41
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42 op.prototype.toC = function(isReceiver) {
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43 var optoMeth = {'+': 'ADD_', '-': 'SUB_', '*': 'MUL_', '/': 'DIV_', '=': 'EQ_', '!=': 'NEQ_', '<': 'LT_', '>': 'GT_', '>=': 'GEQ_', '<=': 'LEQ_'};
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44 var method = optoMeth[this.op];
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45 return 'mcall(' + getMethodId(method) + ', 2, ' + this.left.toC() + ', ' + this.right.toC() + ')\n';
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46 };
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47
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48 function escapeCName(name)
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49 {
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50 if (name == 'self') {
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51 return name;
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52 }
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53 name = name.replace("_", "UN_").replace(":", "CN_").replace("!", "EX_").replace('?', 'QS_').replace('@', 'AT_');
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54 name = 'tp_' + name;
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55 return name;
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56 }
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57
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58 function getSymbolPrefix(info)
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59 {
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60 var pre = '';
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61 switch(info.type) {
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62 case 'self':
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63 pre = 'self->';
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64 break;
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65 case 'parent':
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66 pre = 'self->';
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67 for (var i = 0; i < info.depth; ++i) {
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68 pre += 'parent->';
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69 }
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70 break;
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71 case 'upvar':
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72 pre = 'env->';
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73 for (var i = 1; i < info.depth; ++i) {
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74 pre += 'parent->';
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75 }
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76 break;
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77 case 'recupvar':
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78 if (info.subtype == 'object') {
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79 pre = 'self->env->';
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80 } else {
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81 //TODO: fill this case in if necessary
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82 }
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83 pre += getSymbolPrefix(info.parent);
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84 case 'toplevel':
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85 pre = 'modules.';
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86 modules[name] = false;
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87 break;
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88 case 'closedover':
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89 pre = 'myenv->';
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90 }
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91 return pre;
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92 }
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93
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94 symbol.prototype.toC = function() {
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95 var name = this.cleanName();
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96 var info = this.symbols.find(name);
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97 if (!info) {
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98 throw new Error('symbol ' + name + ' not found');
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99 }
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100
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101 return getSymbolPrefix(info) + escapeCName(name);
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102 }
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103
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104 var declaredInts = {};
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105
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106 intlit.prototype.toC = function() {
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107 var str = this.val.toString();
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108 if (!(this.val in declaredInts)) {
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109 toplevelcode += 'obj_int32 int32_' + str + ' = {{&obj_int32_meta, NULL}, ' + str + '};\n';
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110 declaredInts[this.val] = true;
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111 }
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112 return '((object *)&int32_' + str + ')';
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113 }
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114
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115 floatlit.prototype.toC = function() {
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116 return 'make_float(' + this.val.toString() + ')';
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117 }
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118
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119 var declaredStrings = {};
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120 var nextStringId = 0;
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121
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122 strlit.prototype.toC = function() {
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123 if (!(this.val in declaredStrings)) {
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124 //TODO: get the proper byte length
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125 toplevelcode += 'string str_' + nextStringId + ' = {{&string_meta, NULL}, ' + this.val.length + ', ' + this.val.length + ', ' + this.val.length + ', "' + this.val.replace('\\', '\\\\').replace('"', '\\"').replace('\n', '\\n').replace('\r', '\\r') + '"};\n';
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126 declaredStrings[this.val] = nextStringId++;
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127 }
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128 return '((object *)&str_' + declaredStrings[this.val] + ')';
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129 }
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130
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131 listlit.prototype.toC = function() {
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132 var ret = 'make_list(' + this.val.length;
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133 for (var i = 0; i < this.val.length; i++) {
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134 ret += ', ' + this.val[i].toC();
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135 }
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136 return ret + ')';
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137 }
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138
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139 arraylit.prototype.toC = function() {
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140 var ret = 'make_array(' + this.val.length;
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141 for (var i = 0; i < this.val.length; i++) {
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142 ret += ', ' + this.val[i].toC();
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143 }
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144 return ret + ')';
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145 }
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146
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147 funcall.prototype.toC = function() {
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148 var name = this.name[this.name.length-1] == ':' ? this.name.substr(0, this.name.length-1) : this.name;
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149 if (name == 'foreign') {
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150 if ((this.args[0] instanceof lambda) || (this.args[0] instanceof object)) {
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151 return null;
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152 } else if(this.args[0] instanceof symbol) {
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153 return this.args[0].name;
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154 } else {
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155 throw new Error("Unexpected AST type for foreign:");
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156 }
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157 }
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158 var args = this.args.slice(0, this.args.length);
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159 if (this.receiver) {
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160 args.splice(0, 0, this.receiver);
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161 }
42
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162 var method = false;
31
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163 var funinfo = this.symbols.find(name);
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164 if (!funinfo || funinfo.def instanceof setter) {
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165 method = true;
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166 } else {
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167 switch(funinfo.type)
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168 {
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169 case 'self':
42
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170
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171 if (args.length < funinfo.def.args.length || !funinfo.def.args.length || funinfo.def.args[0].name != 'self') {
31
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172 args.splice(0, 0, new symbol('self', this.symbols));
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173 } else {
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174 args.splice(0, 1);
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175 }
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176 method = true;
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177 break;
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178 case 'parent':
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179 ret = 'self';
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180 for (var i = 0; i < funinfo.depth; ++i) {
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181 ret += '->parent';
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182 }
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183 break;
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184 }
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185 }
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186 for (var i in args) {
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187 args[i] = ', ' + args[i].toC();
31
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188 }
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189 var callpart;
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190 if (method) {
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191 callpart = 'mcall(' + getMethodId(name);
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192 } else {
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193 callpart = 'ccall(' + escapeCName(name);
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194 }
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195 return callpart + ', ' + args.length + args.join('') + ')';
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196 }
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197
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198 function cObject(name) {
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199 this.name = name;
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200 this.slots = {};
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201 this.properties = [];
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202 this.values = [];
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diff changeset
203 this.slotvars = {};
31
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204 }
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205
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206 cObject.prototype.addMessage = function(msgname, implementation) {
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207 var methodid = getMethodId(msgname);
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208 var trunc = methodid & 0xF;
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209 if (!(trunc in this.slots)) {
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210 this.slots[trunc] = [];
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211 }
37
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212 this.slots[trunc].push([methodid, '\t\t' + implementation.lines.join('\n\t\t') + '\n', msgname]);
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213 if (!(trunc in this.slotvars)) {
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214 this.slotvars[trunc] = {};
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215 }
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216 for (var varname in implementation.vars) {
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217 this.slotvars[trunc][varname] = implementation.vars[varname];
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218 }
31
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219 }
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220
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221 cObject.prototype.addProperty = function(propname, value, type) {
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222 if (type != undefined) {
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223 this.properties.push([propname, type]);
42
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224 if (value !== null) {
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225 this.values.push(value);
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226 }
31
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227 } else {
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228 var escaped = escapeCName(propname);
37
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229 this.addMessage(propname, {
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diff changeset
230 vars: {},
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diff changeset
231 lines: [
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232 'va_end(args);',
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233 'return self->' + escaped + ';'
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234 ]});
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235 this.addMessage(propname + '!', {
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236 vars: {setval: 'object *'},
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diff changeset
237 lines: [
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238 'setval = va_arg(args, object *);',
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239 'va_end(args);',
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240 'self->' + escaped + ' = setval;',
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241 'return (object *)self;'
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diff changeset
242 ]});
31
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243 this.properties.push(escaped);
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244 this.values.push(value);
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245 }
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246 }
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247
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248 cObject.prototype.toEarlyCDef = function() {
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249 var objdef = 'typedef struct {\n\tobject header;\n';
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250 for (var i in this.properties) {
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251 if (this.properties[i] instanceof Array) {
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252 objdef += '\t' + this.properties[i][1] + ' ' + this.properties[i][0] + ';\n';
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253 } else {
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254 objdef += '\tobject * ' + this.properties[i] + ';\n'
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255 }
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256 }
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257 objdef += '} ' + this.name + ';\nobj_meta ' + this.name + '_meta;\n';
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258 return objdef;
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diff changeset
259 }
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260
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261 cObject.prototype.toCDef = function() {
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262 var slotdefs = '';
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263 var metadef = 'obj_meta ' + this.name + '_meta = {sizeof(' + this.name +'), {';
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diff changeset
264 for (var i = 0; i < 16; i++) {
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265 if (i) {
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diff changeset
266 metadef += ', ';
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267 }
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268 if (i in this.slots) {
35
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diff changeset
269 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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diff changeset
270 this.name + ' *self = (' + this.name + ' *)oself;\n';
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diff changeset
271 for (var varname in this.slotvars[i]) {
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diff changeset
272 slotdefs += '\t' + this.slotvars[i][varname] + ' ' + varname + ';\n';
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diff changeset
273 }
31
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274 if (this.slots[i].length == 1) {
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275 slotdefs += '\tif (method_id == ' + this.slots[i][0][0] + ') { /* ' + this.slots[i][0][2] + '*/\n' +
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276 '\t\t' + this.slots[i][0][1] + '\n' +
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diff changeset
277 '\t}\n' +
35
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diff changeset
278 '\treturn no_impl(method_id, num_params, (object *)self, args);\n}\n';
31
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279 } else {
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diff changeset
280 slotdefs += '\tswitch(method_id) {\n';
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281 for (j in this.slots[i]) {
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282 slotdefs += '\t\tcase ' + this.slots[i][j][0] + ': /* ' + this.slots[i][j][2] + '*/\n' +
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283 '\t\t\t' + this.slots[i][j][1] + '\n';
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284 }
35
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diff changeset
285 slotdefs += '\t\tdefault:\n' +
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diff changeset
286 '\treturn no_impl(method_id, num_params, params, args);\n}\n';
31
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287 }
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288 metadef += this.name + '_slot_' + i;
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289 } else {
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290 metadef += 'no_impl';
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291 }
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292 }
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293 metadef += '}};\n';
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294 return slotdefs + metadef;
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295 }
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296
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297 cObject.prototype.toCInstance = function() {
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298 return 'make_object(&' + this.name + '_meta, NULL, ' + this.values.length + (this.values.length ? ', ' : '') + this.values.join(', ') + ')';
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299 }
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300
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diff changeset
301 var nextobject = 0;
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diff changeset
302
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303 object.prototype.toC = function() {
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304 var messages = this.messages;
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305 var values = [];
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306 var imports = []
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307 var me = new cObject('object_' + nextobject++);
42
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308 if (this.symbols.needsenv) {
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309 me.addProperty('env', this.symbols.envVar(), 'struct ' + this.symbols.getEnvType() + ' * ');
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310 me.hasenv = true;
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311 }
31
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312 for (var i in messages) {
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313 if (messages[i] instanceof funcall) {
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314 if (messages[i].name == 'import:' && messages[i].args.length == 1) {
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315 imports.push({symbols: false, src: messages[i].args[0]});
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316 } else if(messages[i].name == 'import:from:' && messages[i].args.length == 2) {
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317 var importsyms = [];
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318 each(messages[i].args[0].val, function(i, el) {
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319 if (!(el instanceof symbol)) {
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320 throw new Error('Names in import:from statement must be symbols');
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321 }
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322 importsyms.push(new strlit(el.name));
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323 });
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324 imports.push({symbols: new listlit(importsyms), src: messages[i].args[1]});
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325 } else {
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326 throw new Error('Only import and import:from calls allowed in object context');
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327 }
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328 } else {
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329 messages[i].toCObject(me);
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330 }
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331 }
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332
31
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333 forwarddec += me.toEarlyCDef();
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334 toplevelcode += me.toCDef();
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335 return me.toCInstance();
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336 }
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337
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338 var toplevelcode;
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339 var forwarddec;
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340
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341 function addBinaryOp(cobject, opname, cop, objtype)
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342 {
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343 cobject.addMessage(opname, {
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344 vars: {ret: objtype + ' *', argb: objtype +' *'},
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345 lines: [
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346 'argb = va_arg(args, ' + objtype + ' *);',
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347 'ret = (' + objtype + ' *)make_object(&' + objtype + '_meta, NULL, 0);',
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348 'ret->num = self->num ' + cop + ' argb->num;',
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349 'return ret;'
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350 ]
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351 });
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352 }
a6bf4869fcbe Small refactor of built-in int32 type and added support for more operators on said type
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353
a6bf4869fcbe Small refactor of built-in int32 type and added support for more operators on said type
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354 function addCompOp(cobject, opname, cop, objtype)
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355 {
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diff changeset
356 cobject.addMessage(opname, {
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357 vars: {argb: objtype + ' *'},
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358 lines: [
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359 'argb = va_arg(args, ' + objtype + ' *);',
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diff changeset
360 'if (self->num ' + cop + ' argb->num) {',
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diff changeset
361 ' return mcall(METHOD_ID_TRUE, 1, main_module);',
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diff changeset
362 '}',
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363 'return mcall(METHOD_ID_FALSE, 1, main_module);'
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364 ]
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365 });
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366 }
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367
31
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368 function makeCProg(obj)
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369 {
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370 var int32 = new cObject('obj_int32');
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371 int32.addProperty('num', null, 'int32_t');
37
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372 addBinaryOp(int32, 'ADD_', '+', 'obj_int32');
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373 addBinaryOp(int32, 'SUB_', '-', 'obj_int32');
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374 addBinaryOp(int32, 'MUL_', '*', 'obj_int32');
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375 addBinaryOp(int32, 'DIV_', '/', 'obj_int32');
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376 addCompOp(int32, 'LT_', '<', 'obj_int32');
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377 addCompOp(int32, 'GT_', '>', 'obj_int32');
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378 addCompOp(int32, 'EQ_', '==', 'obj_int32');
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379 addCompOp(int32, 'NEQ_', '!=', 'obj_int32');
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diff changeset
380 addCompOp(int32, 'GEQ_', '>=', 'obj_int32');
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diff changeset
381 addCompOp(int32, 'LEQ_', '<=', 'obj_int32');
38
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382 var array = new cObject('array');
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383 array.addProperty('size', null, 'uint32_t');
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384 array.addProperty('storage', null, 'uint32_t');
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385 array.addProperty('data', null, 'object **');
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386 array.addMessage('get', {
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387 vars: {index: 'obj_int32 *'},
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388 lines: [
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389 'index = va_arg(args, obj_int32 *);',
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diff changeset
390 'if (index->num >= 0 && index->num < self->size) {',
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diff changeset
391 ' return self->data[index->num];',
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diff changeset
392 '}',
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393 'return mcall(METHOD_ID_FALSE, 1, main_module);'
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394 ]
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395 });
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396 array.addMessage('set', {
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397 vars: {index: 'obj_int32 *'},
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398 lines: [
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399 'index = va_arg(args, obj_int32 *);',
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diff changeset
400 'if (index->num >= 0 && index->num < self->size) {',
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diff changeset
401 ' self->data[index->num] = va_arg(args, object *);',
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402 '}',
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403 'return (object *)self;'
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diff changeset
404 ]
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405 });
39
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406 array.addMessage('foreach', {
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diff changeset
407 vars: {index: 'obj_int32 *', i: 'int32_t', clos: 'closure *'},
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408 lines: [
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409 'clos = va_arg(args, closure *);',
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diff changeset
410 'for (i = 0; i < self->size; i++) {',
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diff changeset
411 ' index = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);',
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diff changeset
412 ' index->num = i;',
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diff changeset
413 ' ccall(clos, 2, index, self->data[i]);',
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diff changeset
414 '}',
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diff changeset
415 'return (object *)self;'
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diff changeset
416 ]
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diff changeset
417 });
40
927fd7911a01 Add append message to array
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diff changeset
418 array.addMessage('append', {
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419 vars: {tmp: 'object *'},
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420 lines: [
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421 'if (self->storage == self->size) {',
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diff changeset
422 ' self->storage *= 2;',
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diff changeset
423 ' tmp = realloc(self->data, self->storage);',
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diff changeset
424 ' if (!tmp) {',
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diff changeset
425 ' fputs("Failed to increase array size\\n", stderr);',
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diff changeset
426 ' exit(1);',
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diff changeset
427 ' }',
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diff changeset
428 ' self->data = tmp;',
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diff changeset
429 '}',
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diff changeset
430 'self->data[self->size++] = va_arg(args, object *);',
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diff changeset
431 'return self;'
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diff changeset
432 ]
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diff changeset
433 });
41
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diff changeset
434 var string = new cObject('string');
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diff changeset
435 string.addProperty('length', null, 'uint32_t');
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diff changeset
436 string.addProperty('bytes', null, 'uint32_t');
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diff changeset
437 string.addProperty('storage', null, 'uint32_t');
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diff changeset
438 string.addProperty('data', null, 'char *');
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parents: 40
diff changeset
439 string.addMessage('length', {
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parents: 40
diff changeset
440 vars: {intret: 'obj_int32 *'},
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441 lines: [
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diff changeset
442 'intret = (obj_int32 *)make_object(&obj_int32_meta, NULL, 0);',
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parents: 40
diff changeset
443 'intret->num = self->length;',
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diff changeset
444 'return &(intret->header);'
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
445 ]
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
446 });
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
447 string.addMessage('EQ_', {
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
448 vars: {argb: 'string *'},
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
449 lines: [
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
450 'argb = va_arg(args, string *);',
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
451 'if (self->length == argb->length && self->bytes == argb->bytes && !memcmp(self->data, argb->data, self->bytes)) {',
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
452 ' return mcall(METHOD_ID_TRUE, 1, main_module);',
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
453 '}',
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
454 'return mcall(METHOD_ID_FALSE, 1, main_module);'
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
455 ]
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
456 });
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
457 string.addMessage('print', {
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
458 vars: {},
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
459 lines: [
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
460 'fwrite(self->data, 1, self->bytes, stdout);',
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
461 'return self;'
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
462 ]
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
463 });
31
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
464 forwarddec = toplevelcode = '';
41
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
465 forwarddec += int32.toEarlyCDef() + array.toEarlyCDef() + string.toEarlyCDef();
0558dad9d061 Add basic string support
Mike Pavone <pavone@retrodev.com>
parents: 40
diff changeset
466 toplevelcode += int32.toCDef() + array.toCDef() + string.toCDef();
31
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
467 obj.populateSymbols(toplevel);
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
468 var rest = 'object * mainModule() {\n\tmain_module = ' + obj.toC() + ';\n\treturn main_module;\n}\n';
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
469 return '#include "runtime/proghead.inc"\n' +
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
470 '#define METHOD_ID_MAIN ' + getMethodId('main') + '\n' +
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
471 '#define METHOD_ID_TRUE ' + getMethodId('true') + '\n' +
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
472 '#define METHOD_ID_FALSE ' + getMethodId('false') + '\n' +
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
473 forwarddec + toplevelcode + rest + '#include "runtime/progfoot.inc"\n';
31
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
474 }
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
475
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
476 object.prototype.toCModule = function() {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
477 return makeCProg(this);
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
478 }
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
479
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
480 var lambdanum = 0;
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
481
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
482 lambda.prototype.toC = function() {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
483 var args = this.args ? this.args.slice(0, this.args.length) : [];
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
484 var exprs = this.expressions;
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
485 var mynum = lambdanum++;
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
486 if (Object.keys(this.symbols.closedover).length) {
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
487 this.symbols.envtype = 'lambda_' + mynum + '_env';
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
488 }
31
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
489 if (this.selftype) {
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
490 this.symbols.defineVar('self', this.selftype);
31
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
491 if (args[0] && args[0].cleanName() == 'self') {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
492 args.splice(0, 1);
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
493 }
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
494 var offset = 1;
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
495 } else {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
496 var offset = 0;
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
497 }
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
498 for (var i = 0; i < args.length; ++i) {
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
499 var argname = args[i].toC();
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
500
35
bf5e88f6419d Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents: 34
diff changeset
501 args[i] = (argname.indexOf('->') < 0 ? '\tobject * ' : '\t') + argname + ' = va_arg(args, object *);\n';
31
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
502 }
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
503 var compiled = []
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
504 for (var i in exprs) {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
505 var js = exprs[i].toC();
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
506 if (js) {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
507 compiled.push(indent(js));
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
508 }
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
509 }
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
510 exprs = compiled;
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
511 if (exprs.length) {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
512 exprs[exprs.length-1] = 'return ' + exprs[exprs.length-1] + ';';
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
513 }
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
514
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
515 if (Object.keys(this.symbols.closedover).length) {
42
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
516 forwarddec += 'typedef struct lambda_' + mynum + '_env {\n';
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
517 for (var varname in this.symbols.closedover) {
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
518 forwarddec += '\tobject * ' + escapeCName(varname) + ';\n';
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
519 }
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
520 forwarddec += '} lambda_' + mynum + '_env;\n'
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
521
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
522 var myenvinit = '\tlambda_' + mynum + '_env * myenv = malloc(sizeof(lambda_' + mynum + '_env));\n';
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
523 this.symbols.envtype = 'lambda_' + mynum + '_env';
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
524 } else {
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
525 var myenvinit = '';
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
526 }
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
527
35
bf5e88f6419d Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents: 34
diff changeset
528 toplevelcode += 'object * lambda_' + mynum + ' (' + this.symbols.parentEnvType() + ' * env, uint32_t num_args, ...) {\n\tva_list args;\n' + myenvinit + '\tva_start(args, num_args);\n';
31
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
529 if (this.selftype) {
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
530 var selfvar = (new symbol('self', this.symbols)).toC();
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
531 if (selfvar == 'self') {
35
bf5e88f6419d Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents: 34
diff changeset
532 toplevelcode += '\t' + this.selftype + ' * self = va_arg(args, ' + this.selftype + ' *);\n';
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
533 } else {
35
bf5e88f6419d Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents: 34
diff changeset
534 toplevelcode += '\t' + selfvar + ' = va_arg(args, ' + this.selftype + ' *);\n';
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
535 }
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
536
31
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
537 }
35
bf5e88f6419d Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents: 34
diff changeset
538 toplevelcode += args.join('') + '\tva_end(args);\n' + exprs.join(';\n\t') + '\n}\n';
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
539
42
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
540 if (this.selftype) {
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
541 return 'lambda_' + mynum;
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
542 } else {
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
543 if (this.symbols.parentEnvType() != 'void') {
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
544 if (this.symbols.passthruenv) {
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
545 var envvar = 'env';
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
546 } else {
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
547 var envvar = 'myenv';
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
548 }
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
549 return 'make_closure(' + envvar + ', lambda_' + mynum + ')';
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
550 } else {
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
551 toplevelcode += 'closure lambda_obj_' + mynum + ' = {{&lambda_meta, NULL}, NULL, lambda_' + mynum + '};\n';
4e983fe32047 Fix closures as methods so that private vars work
Mike Pavone <pavone@retrodev.com>
parents: 41
diff changeset
552 return '((object *)&lambda_obj_' + mynum + ')';
34
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
553 }
a10f1b049193 Working closures, but need to rethink method call strategy
Mike Pavone <pavone@retrodev.com>
parents: 32
diff changeset
554 }
31
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
555 };
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
556 lambda.prototype.toCObject = function(typename) {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
557 this.selftype = typename;
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
558 return this.toC();
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
559 };
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
560 lambda.prototype.toCModule = function() {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
561 return makeCProg(this);
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
562 }
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
563
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
564 assignment.prototype.toC = function() {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
565 var existing = this.symbols.find(this.symbol.name);
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
566 var prefix = '';
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
567 var val = this.expression.toC();
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
568 if (val === null) {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
569 return null;
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
570 }
38
e7be612fd3ae Very basic array support
Mike Pavone <pavone@retrodev.com>
parents: 37
diff changeset
571 if (existing.type == 'local' && !existing.isdeclared) {
e7be612fd3ae Very basic array support
Mike Pavone <pavone@retrodev.com>
parents: 37
diff changeset
572 prefix = 'object *';
e7be612fd3ae Very basic array support
Mike Pavone <pavone@retrodev.com>
parents: 37
diff changeset
573 this.symbols.declareVar(this.symbol.name);
e7be612fd3ae Very basic array support
Mike Pavone <pavone@retrodev.com>
parents: 37
diff changeset
574 }
31
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
575 return prefix + this.symbol.toC() + ' = ' + val;
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
576 };
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
577 assignment.prototype.toCObject = function(cobj) {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
578 if (this.expression.toCObject) {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
579 var val = this.expression.toCObject(cobj.name);
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
580 } else {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
581 var val = this.expression.toC();
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
582 }
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
583 if (val === null) {
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
584 return;
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
585 }
668f533e5284 Add initial version of C backend
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
586 if (this.expression instanceof lambda) {
35
bf5e88f6419d Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents: 34
diff changeset
587 var params = ['((object *)self)'];
bf5e88f6419d Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents: 34
diff changeset
588 var paramget = '';
37
a6bf4869fcbe Small refactor of built-in int32 type and added support for more operators on said type
Mike Pavone <pavone@retrodev.com>
parents: 35
diff changeset
589 var messagevars = {};
35
bf5e88f6419d Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents: 34
diff changeset
590 for (var i in this.expression.args) {
bf5e88f6419d Use a function/method call strategy that actually works
Mike Pavone <pavone@retrodev.com>
parents: 34
diff changeset
591 var escaped = escapeCName(this.expression.args[i].cleanName());
bf5e88f6419d Use a function/method call strategy that actually works
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592 if (escaped != 'self') {
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593 messagevars[escaped] = 'object *';
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594 params.push(escaped);
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595 paramget += escaped + ' = va_arg(args, object *); ';
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596 }
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597 }
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598 cobj.addMessage(this.symbol.name, {
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599 vars: messagevars,
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600 lines: [paramget + 'return ' + val + '(' + (cobj.hasenv ? 'self->env' : 'NULL') + ', ' + params.length + (params.length ? ', ' : '') + params.join(', ') + ');']
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601 });
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602 } else {
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603 cobj.addProperty(this.symbol.name, val);
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604 }
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605 };