[REQUEST] Proper error handling for Rect

[mauro-balades]

No description provided.

[tokorv]

Hi Mauro, could you please elaborate to what you're referring to exactly? Maybe give some examples of what you were think of?

[mauro-balades]

Hi Mauro, could you please elaborate to what you're referring to exactly? Maybe give some examples of what you were think of?

Hi, Alexander Tokorv The Second. I hope you are having a splendid day. Of course, I can elaborate more! This issue has been opened from a discussion in #10 . My request is to add a "real" exception handler in the backend and in the frontend.

the syntax may be the typical C++ syntax such as:

try {} catch () {}

The idea is to allow users to catch/create runtime/compile(time) errors.

[tokorv]

Thanks for much for considering to contribute to this project!
We have looked into try and except handling before, but struggled to find a solution with minimal overhead.
We are glad you've come aboard to help improve the project.
I look forward to you future issues/pull requests.

Thanks
Tokorv

[mauro-balades]

Hi again!

Here are some resources to help you get started.

• https://llvm.org/docs/ExceptionHandling.html
• https://mapping-high-level-constructs-to-llvm-ir.readthedocs.io/en/latest/exception-handling/index.html
• https://stackoverflow.com/questions/20027156/llvm-exception-handling-implementation
• https://www.youtube.com/watch?v=dQw4w9WgXcQ

[mauro-balades]

Here is what CPP is doing. As you can see, C++ uses external functions for things such as throwing, catching, etc... For LLVM to catch the exception, we need the use of invoke. But how do I know where to use invoke? One way to solve this is by checking if the function throws an exception of if the user declares that the function will throw an exception.