annotate nodejs/coord.cc @ 597:3300992b29ff openvg

Define mbe_clear() for VG
author Thinker K.F. Li <thinker@branda.to>
date Thu, 01 Jul 2010 15:52:29 +0800
parents 6639d386db78
children 90c7726bc953
rev   line source
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1 #include <stdio.h>
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2 #include <v8.h>
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3
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4 extern "C" {
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5 #include "mb.h"
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6 #include "mb_X_supp.h"
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7 #include "mb_tools.h"
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8 #include "X_supp_njs.h"
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9 }
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10
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11 #include "mbfly_njs.h"
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12
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13 #ifndef ASSERT
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14 #define ASSERT(x)
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15 #endif
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16
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17 using namespace v8;
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18
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19 static Handle<Value>
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20 xnjsmb_coord_get_index(uint32_t index, const AccessorInfo &info) {
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21 HandleScope scope;
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22 Handle<Object> self;
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23 coord_t *coord;
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24 co_aix v;
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25
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26 if(index < 0 || index >= 6)
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27 THROW("Invalid index");
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28
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29 self = info.This();
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30 coord = (coord_t *)UNWRAP(self);
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31 v = coord_get_matrix(coord)[index];
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32
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33 return Number::New(v);
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34 }
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35
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36 static Handle<Value>
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37 xnjsmb_coord_set_index(uint32_t index, Local<Value> value,
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38 const AccessorInfo &info) {
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39
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40 HandleScope scope;
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41 Handle<Object> self;
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42 Handle<Object> js_rt;
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43 redraw_man_t *rdman;
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44 coord_t *coord;
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45 co_aix v;
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46
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47 if(index < 0 || index >= 6)
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48 THROW("Invalid Index");
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49 if(!value->IsNumber())
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50 THROW("Invalid value");
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51
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52 self = info.This();
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53 coord = (coord_t *)UNWRAP(self);
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54 v = value->NumberValue();
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55 coord_get_matrix(coord)[index] = v;
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56
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57 js_rt = GET(self, "mbrt")->ToObject();
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58 rdman = xnjsmb_rt_rdman(js_rt);
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59 rdman_coord_changed(rdman, coord);
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60
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61 return value;
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62 }
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63
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64 /*! \brief Callback functio to add a shape to a coord in Javascript.
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65 *
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66 * coord.add_shape(shape)
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67 */
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68 static Handle<Value>
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69 xnjsmb_coord_add_shape(const Arguments &args) {
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70 int argc = args.Length();
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71 Handle<Object> self = args.This();
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72 Handle<Object> shape_obj;
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73 Handle<Object> rt_obj;
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74 Handle<Value> rt_val;
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75 redraw_man_t *rdman;
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76 coord_t *coord;
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77 shape_t *sh;
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78 int r;
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79
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80 if(argc != 1)
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81 THROW("Invalid number of arguments (!= 1)");
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82
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83 shape_obj = args[0]->ToObject();
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84 sh = (shape_t *)UNWRAP(shape_obj);
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85 ASSERT(sh != NULL);
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86
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87 coord = (coord_t *)UNWRAP(self);
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88 ASSERT(coord != NULL);
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89
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90 rt_val = GET(self, "mbrt");
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91 rt_obj = rt_val->ToObject();
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92 rdman = xnjsmb_rt_rdman(rt_obj);
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93
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94 r = rdman_add_shape(rdman, sh, coord);
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95 if(r != 0)
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96 THROW("Unknown error");
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97
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98 return Null();
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99 }
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100
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101 static Persistent<ObjectTemplate> coord_obj_temp;
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102
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103 static void
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104 xnjsmb_init_temp(void) {
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105 Handle<FunctionTemplate> add_shape_temp;
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106
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107 coord_obj_temp = Persistent<ObjectTemplate>::New(ObjectTemplate::New());
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108 coord_obj_temp->SetIndexedPropertyHandler(xnjsmb_coord_get_index,
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109 xnjsmb_coord_set_index);
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110 coord_obj_temp->SetInternalFieldCount(1);
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111
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112 add_shape_temp = FunctionTemplate::New(xnjsmb_coord_add_shape);
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113 SET(coord_obj_temp, "add_shape", add_shape_temp);
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114 }
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115
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116 /*! \brief Create and initialize a Javascript object for a coord.
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117 */
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118 static Handle<Object>
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119 xnjsmb_coord_new_jsobj(coord_t *coord, Handle<Object> parent_obj,
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120 Handle<Object> js_rt) {
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121 Handle<Object> coord_obj;
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122 static int init_temp = 0;
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123
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124 if(!init_temp) {
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125 xnjsmb_init_temp();
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126 init_temp = 1;
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127 }
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128
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129 coord_obj = coord_obj_temp->NewInstance();
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130 ASSERT(coord_obj != NULL);
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131 WRAP(coord_obj, coord);
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132
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133 if(!parent_obj.IsEmpty())
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134 SET(coord_obj, "parent", parent_obj);
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135 SET(coord_obj, "mbrt", js_rt);
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136
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137 return coord_obj;
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138 }
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139
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140 /*! \brief Create a coord object associated with the rdman of the runtime.
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141 *
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142 * Two internal fields, coord and rdman.
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143 */
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144 Handle<Value>
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145 xnjsmb_coord_new(const Arguments &args) {
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146 HandleScope scope;
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147 Handle<Object> js_rt;
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148 Handle<Object> coord_obj, parent_obj;
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149 njs_runtime_t *rt;
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150 redraw_man_t *rdman;
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151 coord_t *coord, *parent = NULL;
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152 int argc;
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153
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154 argc = args.Length();
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155 if(argc > 1)
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156 THROW("Too many arguments (> 1)");
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157
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158 js_rt = args.This();
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159 rt = (njs_runtime_t *)UNWRAP(js_rt);
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160 rdman = X_njs_MB_rdman(rt);
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161
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162 if(argc == 1) {
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163 parent_obj = args[0]->ToObject();
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164 parent = (coord_t *)UNWRAP(parent_obj);
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165 }
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166
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167 coord = rdman_coord_new(rdman, parent);
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168 ASSERT(coord != NULL);
562
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169 coord_obj = xnjsmb_coord_new_jsobj(coord, parent_obj, js_rt);
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170
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171 scope.Close(coord_obj);
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172
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173 return coord_obj;
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174 }
562
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175
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176 /*! \brief Initialize Javascript object for root coord of a runtime.
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177 *
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178 * \param js_rt is the runtime object to create the root object for.
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179 *
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180 * After the function, js_rt.root is the object for root coord in
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181 * Javascript.
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182 */
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183 void
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184 xnjsmb_coord_mkroot(Handle<Object> js_rt) {
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185 redraw_man_t *rdman;
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186 coord_t *root;
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187 Handle<Object> obj;
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188
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189 rdman = xnjsmb_rt_rdman(js_rt);
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190 root = rdman_get_root(rdman);
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191 obj = xnjsmb_coord_new_jsobj(root, Handle<Object>(NULL), js_rt);
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192
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193 SET(js_rt, "root", obj);
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194 }