Return type accuracy and usage improvements #7891
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APickledWalrus
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APickledWalrus
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This was referenced May 23, 2025
sovdeeth
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Problem
Some Expressions/Classes are not taking full advantage of the multiple return types system. Others have return types that are incorrectly setup. Ensuring detailed return types is also important for features like local variable type hints.
Solution
I aim to integrate usage of
Expression#possibleReturnTypesandExpression#canReturnwhere possible. I've also cleaned up some classes that were in need of it (to improve their return type logic).A major change that I made is
Expression#canReturnwill always return true if one of the possible return types is Object. This appears to work without issue, but further testing is needed.There may be additional classes that need updated. I will continue searching for them. However, this is ready for an initial review.
Testing Completed
No additional tests have been added yet. Coverage of the modified syntaxes is present, though some additional tests might be possible to test the behavior.
Supporting Information
n/a
Completes: #5060 (needs testing)
Related: none