Node.js native module programming

Separate application algorithm codes and Node.js plug codes

• Application codes should be removed any node.js and v8 related definitions.
  • it can use another languages for application code. e.g. C, Objective-C
• Node.js plug codes are almost for convert arguments and result.

v8 Handles

3 Handle (smart pointer) type exists

• Handle: as smart pointer of RAII (release the holding resource by its destructor)
• Local: automatically managed by HandleScope
• Persistent: explicitly call Dispose() to release

HandleScope instance is stacked memory manager for Local handle.

• return scope.Close(localHandle): unmanage a localHandle object on the scope, then return localHandle as Handle