Nan::Callback makes it easier to use v8::Function handles as callbacks. A class that wraps a v8::Function handle, protecting it from garbage collection and making it particularly useful for storage and use across asynchronous execution.
Nan::Callback
v8::Function
class Callback { public: Callback(); explicit Callback(const v8::Local<v8::Function> &fn); ~Callback(); bool operator==(const Callback &other) const; bool operator!=(const Callback &other) const; v8::Local<v8::Function> operator*() const; v8::Local<v8::Value> operator()(v8::Local<v8::Object> target, int argc = 0, v8::Local<v8::Value> argv[] = 0) const; v8::Local<v8::Value> operator()(int argc = 0, v8::Local<v8::Value> argv[] = 0) const; void SetFunction(const v8::Local<v8::Function> &fn); v8::Local<v8::Function> GetFunction() const; bool IsEmpty() const; v8::Local<v8::Value> Call(v8::Local<v8::Object> target, int argc, v8::Local<v8::Value> argv[]) const; v8::Local<v8::Value> Call(int argc, v8::Local<v8::Value> argv[]) const; };
Example usage:
v8::Local<v8::Function> function; Nan::Callback callback(function); callback.Call(0, 0);
Last updated 4 years ago