v8_error_helper.cc

#include <v8.h>
#include <node.h>

inline Local<Value> ThrowTypeError(const char* message) {
    HandleScope scope;
    
    ThrowException(Exception::TypeError(String::New(message)));

    return scope.Close(Undefined());
};

Handle<Value> SomeMethod(const Arguments &args) {
    HandleScope scope:

    if (!args[0]->IsObject() || args[0]->IsArray())
        return ThrowTypeError("Argument must be a object literal.");
 
    return scope.Close(args[0]->ToObject());
};

NODE_MODULE(test, init);