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annotate cbackend.js @ 41:0558dad9d061

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