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Fixes manual_slice_size_computation ICE and triggers in const context #14804

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@samueltardieu samueltardieu commented May 14, 2025

The first commit fixes #14802: when a slice is directly present, it must be dereferenced (instead of referenced -1 times) before being passed to mem::size_of_val().

The second commit triggers the lint in a const contact when MSRV ≥ 1.85.

changelog: [manual_slice_size_computation]: fix ICE in suggestion to efficiently compute the size of a slice, and trigger the lint in const context as well

In this case, a dereference is needed before using `mem::size_of_val()`.
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rustbot commented May 14, 2025

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@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties label May 14, 2025
@samueltardieu samueltardieu changed the title Fix manual_slice_size_computation ICE and triggers in const context Fixes manual_slice_size_computation ICE and triggers in const context May 14, 2025
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Manual Slice Size Calculation with DSTs ICE
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