Adding span annotations to the internal representation

egraphs-good / egglog

egraphs + datalog!

https://egraphs-good.github.io/egglog/

MIT License

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Adding span annotations to the internal representation #389

Closed yihozhang closed 3 months ago

yihozhang commented 4 months ago

What this PR does:

[x] Add span annotations to the parser file
[x] Add span annotations to internal representations (CoreIR, etc)

What this PR does not do:

Actual span-annotated error reporting, which will be a future PR. However, the test in typechecking.rs checks that we are getting the correct span (at least for TypeError::Arity).

saulshanabrook commented 4 months ago

So just to be clear, the goal for the PR after this is to not only have row/column for parsing but also when there is say an error running a rule or something? Or which types of errors do we hope to attach source information too?

yihozhang commented 4 months ago

@saulshanabrook Since the ASTs are annotated, technically we should be able to locate the source program location for every (runtime/compile time) error. This PR leaves this problem open though, since it has not got to the actual error reporting part, but I think what you described is the goal.

yihozhang commented 4 months ago

@ezrosent @oflatt Thanks for the feedback! I have got rid of the Ann type parameter.