I might be going about this the wrong way, but I'm just exploring the
different ways I can do this.
Given a developer's V8 script usage of our embedded implementation
exposing an API to it:
function addMessage(toWhom, subject, text) {
var msg = {};
msg.From = {Name: "Post Master"}
msg.To = {Name: toWhom};
msg.Private = true;
msg.Subject = subject;
if (!wcAddMessage(msg,text)) {
alert("! Error wcaddMessage: "+wcGetLastError());
}
}
I want to the callback to wcAddMessage() to be able to read the msg
json object using Arguments:
static Handle<Value> wcAddMessageCallback(const Arguments& args) {
if (args.Length() < 1) return v8::Undefined();
HandleScope scope;
printf("------------------------------------------------\n");
printf("- args length: %d\n",args.Length());
v8::String::AsciiValue text(args[1]);
printf("- args[1]: [%s]\n",*text);
???? How to I access the args[0] as a JSON object ??
/*
map<string, string> *msg = wcUnwrapMap(args[0]);
for (map<string, string>::iterator i = msg->begin(); i != msg-
>end(); i++) {
pair<string, string> entry = *i;
printf("AddMsg Args: %s: %s\n", entry.first.c_str(),
entry.second.c_str());
}
*/
return v8::Undefined();
}
I basically want to extract the fields here so I can map it to the
actual TMsgHeader c-structure which in this case only needs a few
fields filled to satisfy the API wcAddMessage() call.
Maybe this isn't the best approach, but I'm trying to think ahead in
optimizing this, but I am not very familiar with V8 yet. I mean,
off hand, I appears it would be inefficient for us to create a class
object for all our c-based structures (over 60 of them) and then
instances of these in V8 scripts will be making all the getters and
setters calls.
Thanks for any tips
--~--~---------~--~----~------------~-------~--~----~
v8-users mailing list
[email protected]
http://groups.google.com/group/v8-users
-~----------~----~----~----~------~----~------~--~---
