rice_custom_exceptions.cpp

/* Basically, I want to throw a custom exception from C++. I'm kind of lost on how to do that :/ */


// exceptions.hpp

class V8UnknownReturnValueException : public Rice::Exception {
};

Rice::Object rb_eUnknownReturnValueException;

// Initializing the guy (rb_mV8 is a defined module)

rb_eUnknownReturnValueException = rb_mV8.define_class<V8UnknownReturnValueException>("UnknownReturnValueException");

// Throwing the exception:

throw Rice::Exception(rb_eUnknownReturnValueException, "Fly little bird!");

/* When running it:

ruby examples/hello.rb 
examples/hello.rb:13:in `new': allocator undefined for V8::UnknownReturnValueException (TypeError)
	from examples/hello.rb:13:in `run'
	from examples/hello.rb:13

*/