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Implement RFC 2580: Pointer metadata & VTable #81172

Merged
merged 12 commits into from
Feb 18, 2021
Merged

Implement RFC 2580: Pointer metadata & VTable #81172

merged 12 commits into from
Feb 18, 2021

Commits on Feb 15, 2021

  1. Add ptr::Pointee trait (for all types) and ptr::metadata function 

    RFC: rust-lang/rfcs#2580
    @SimonSapin
    SimonSapin committed Feb 15, 2021
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  2. Parameterize DynMetadata over its dyn SomeTrait type

    @SimonSapin
    SimonSapin committed Feb 15, 2021
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  3. Add size_of, align_of, and layout methods to DynMetadata

    @SimonSapin
    SimonSapin committed Feb 15, 2021
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  4. Add ptr::from_raw_parts, ptr::from_raw_parts_mut, and `NonNull::f… 

    …rom_raw_parts`

The use of module-level functions instead of associated functions
on `<*const T>` or `<*mut T>` follows the precedent of
`ptr::slice_from_raw_parts` and `ptr::slice_from_raw_parts_mut`.
    @SimonSapin
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  5. Add to_raw_parts methods to *const, *mut, and NonNull 

    These are not named `into_` because they do not consume their receiver
since raw pointers are `Copy`.
    @SimonSapin
    SimonSapin committed Feb 15, 2021
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  6. Use new pointer metadata API inside libcore instead of manual transmutes

    @SimonSapin
    SimonSapin committed Feb 15, 2021
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  7. More doc-comments for pointer metadata APIs

    @SimonSapin
    SimonSapin committed Feb 15, 2021
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  8. Fix libcore unit tests in stage 0

    @SimonSapin
    SimonSapin committed Feb 15, 2021
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  9. Fix intra-doc link to raw pointer method 

    CC rust-lang#80181
    @SimonSapin
    SimonSapin committed Feb 15, 2021
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  10. Add a ThinBox library as a libcore test for pointer metadata APIs

    @SimonSapin
    SimonSapin committed Feb 15, 2021
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  11. Pointer metadata: add tracking issue number

    @SimonSapin
    SimonSapin committed Feb 15, 2021
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  12. Use local path for already-imported function 

    This module has `use super::*;` at the top.

Co-authored-by: Oli Scherer <[email protected]>
    @SimonSapin @oli-obk
    SimonSapin and oli-obk committed Feb 15, 2021
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