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Make useless_ptr_null_checks smarter about some std functions #114494

Merged
merged 4 commits into from
Sep 16, 2023
Merged

Make useless_ptr_null_checks smarter about some std functions #114494

merged 4 commits into from
Sep 16, 2023

Commits on Aug 5, 2023

  1. Add #[rustc_never_returns_null_ptr] 

    And look for it in the useless_ptr_null_checks lint
    @est31
    est31 committed Aug 5, 2023
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  2. Add #[rustc_never_returns_null_ptr] to std functions 

    Add the attribute to standard library functions that
are guaranteed to never return null pointers, as their
originating data wouldn't allow it.
    @est31
    est31 committed Aug 5, 2023
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  3. Remove ptr_from_mut diagnostic item 

    It was added by rust-lang#113657 for its purposes.
Now it is not used any more, remove it,
as we use the attr now.
    @est31
    est31 committed Aug 5, 2023
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Commits on Aug 6, 2023

  1. Improve diagnostics and add tests for function calls

    @est31
    est31 committed Aug 6, 2023
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