Adding DCE integration tests in compiler #1343
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Oct 9, 2024
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Thanks, this is excellent work! Some test cases revealed DCE behavior that was surprising, even though it made sense in the end.
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Overall I'm happy with this PR. If you don't think that generating stable identifiers for Decls is worth it, I'll merge it as-is.
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This adds tests for the dead-code elimination (DCE) package into the compiler. The compiler performs many tasks that are related to DCE such as setting Decl's names and dependencies. These tests are designed like an integration test to ensure that the correct information is being given to the DCE and that the DCE is doing the correct things with that information.
This will introduce some TODO's that are resolved by the next part #1340. These TODO's exemplify the changes needed to be made to the DCE to properly handle generics and type instances. Double check that I'm not taking crazy pills with these TODO's and that they make sense to be the thing that needs to be fixed in the next part.
This is related to #1013 and #1270
🍰 As an added bonus; I upgraded the existing test to stop using the deprecated
golang.org/x/tools/go/loaderand instead start usinggolang.org/x/tools/go/packages. It's nothing that exciting since it only is for source code for strings, but it's a start 😄