Avoid recursive inlining (for products)#575
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MartinHH wants to merge 3 commits intosoftwaremill:scala3from
Draft
Avoid recursive inlining (for products)#575MartinHH wants to merge 3 commits intosoftwaremill:scala3from
MartinHH wants to merge 3 commits intosoftwaremill:scala3from
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Leverage summonAll instead of recursion.
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Turns out that one doesn't fail when changing the project's scala version to 3.4.0 (and the unexpected error messages from the other failing tests are also much closer to the expected ones). Maybe it would make sense to postpone this change until the next LTS version (3.7.0) is out and Magnolia is migrated to that (?). |
MartinHH
commented
Feb 16, 2025
| } { params => product.fromProduct(Tuple.fromArray(params)) } | ||
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| private trait ParamFactory[TC[_], P]: |
Author
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This is where one would need to add an @implicitNotFound annotation in order to fix the failing tests related to (compilation) error messages.
Something along the lines of:
@implicitNotFound("No given instance of type ${TC} (for type ${P}) was found")
Leverage summonAll instead of recursion.
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Leverage summonAll to avoid recursive inlining as proposed in #574
So far, this is just a proof of concept.
Various tests are still failing - most of them are related to error messages of compilation errors not being as expected, but
one ("derive instances for types with refined types if implicit provided") seems a bit more serious (compilation fails when it shouldn't).