Using embedded v8, I'm trying to clear the current variables and functions.
I've found that in order to save having to recreate the isolate, which can
be quite slow, I can just create a new context from the isolate. However,
the old context still exists in memory and its not needed.
How can I delete an old context now that I don't need it?
Example code snippet:
```
// Creates a new execution environment containing the built-in
// functions.
v8::Local<v8::Context> CreateShellContext(v8::Isolate* isolate) {
// Create a template for the global object.
v8::Local<v8::ObjectTemplate> global = v8::ObjectTemplate::New(isolate);
// Bind the global 'print' function to the C++ Print callback.
global->Set(isolate, "print", v8::FunctionTemplate::New(isolate, Print));
// Bind the global 'read' function to the C++ Read callback.
global->Set(isolate, "read", v8::FunctionTemplate::New(isolate, Read));
// Bind the global 'load' function to the C++ Load callback.
global->Set(isolate, "load", v8::FunctionTemplate::New(isolate, Load));
// Bind the 'quit' function
global->Set(isolate, "quit", v8::FunctionTemplate::New(isolate, Quit));
// Bind the 'version' function
global->Set(isolate, "version", v8::FunctionTemplate::New(isolate,
Version));
return v8::Context::New(isolate, NULL, global);
}
```
```
v8::Local<v8::Context> context = CreateShellContext(isolate);
if (context.IsEmpty()) {
fprintf(stderr, "Error creating context\n");
return 1;
}
if (run_shell) RunShell(context, platform.get());
```
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