v8 Javascript Engine Test

v8_test.cc

// build) g++ v8_test.cc -o v8_test -lv8

#include <v8.h>
#include <string>

char * js_src = 
  "function laugh() {"
  "  print ('HAHAHA'); "
  "}; "
  "s = append ('echo');"
  "print (s);"
  "print ('I am ' + obj_test.name); "
  "obj_test.func ();";

v8::Handle<v8::Value> PrintArgs (const v8::Arguments &args) {
  v8::String::AsciiValue str(args[0]);
  printf ("[Print] '%s'\n", *str);
  return v8::Undefined ();
}

v8::Handle<v8::Value> PrintTest (const v8::Arguments &args) {
  printf ("[Print Test]\n");
  return v8::Undefined ();
}

v8::Handle<v8::Value> AppendExclamation (const v8::Arguments &args) {  
  v8::String::AsciiValue str(args[0]);
  std::string s (*str);
  s += "!!!";
  return v8::String::New (s.c_str (), s.length());
}



int main(int argc, char* argv[]) {
  v8::HandleScope handle_scope;
  v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New ();

  // install a original function to global context
  global->Set(v8::String::New ("print"), v8::FunctionTemplate::New (PrintArgs));
  global->Set(v8::String::New ("append"), v8::FunctionTemplate::New (AppendExclamation));

  // install a object to global context
  v8::Handle<v8::ObjectTemplate> obj = v8::ObjectTemplate::New ();
  obj->Set ("name", v8::String::New ("DROID"));
  obj->Set ("func", v8::FunctionTemplate::New (PrintTest));
  global->Set ("obj_test", obj);

  // create a source code and compile
  v8::Handle<v8::String> source = v8::String::New(js_src);
  v8::Handle<v8::Primitive> undef = v8::Undefined ();

  v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
  v8::Context::Scope context_scope(context);

  v8::Handle<v8::Script> script = v8::Script::Compile(source, undef);
  v8::Handle<v8::Value> result = script->Run();

  context.Dispose();

  return 0;
}