DIBuilder class

[vihanb]

LLVM has a LLVM::DIBuilder which provides tools for creating debug information.

I'll attempt to make a PR for this in the upcoming weeks.

[MichaReiser]

Hy vihanb.

Let me know if you need any help to get started. I'm happy to assist you and look forward for the DIBuilder. Something I probably could also make use of in my other project.

[vihanb]

Hi, so today I was working on implementing some of the DIBuilder classes and due to the similarity between DIBuilder and IRBuilder I was referencing the existing IRBuilder implementation to help me make the DIBuilder bindings.

One item I had a question on however is why the constructor is implemented as a static function that just returns the static constructor instance rather than just being a static variable?

llvm-node/src/ir/ir-builder.h

Lines 64 to 67 in 0c6182a

	static inline Nan::Persistent<v8::Function>& irBuilderConstructor() {
	static Nan::Persistent<v8::Function> constructor {};
	return constructor;
	}

[MichaReiser]

@vihanb Sorry that I didn't found the time to reply to you sooner.

I don't remember but my assumption is that the reason is that I've done the same in all other files, e.g. the integer-type. It makes more sense for those types to use a function since the template configuration code is inside of the factory function but no such code is needed for the IRBuilder.