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[Syntax] Implement auto trait syntax #45247

Merged
merged 15 commits into from
Nov 4, 2017
Merged

[Syntax] Implement auto trait syntax #45247

merged 15 commits into from
Nov 4, 2017

Commits on Nov 3, 2017

  1. [Syntax Breaking] Rename DefaultImpl to AutoImpl 

    DefaultImpl is a highly confusing name for what we now call auto impls,
as in `impl Send for ..`. The name auto impl is not formally decided
but for sanity anything is better than `DefaultImpl` which refers
neither to `default impl` nor to `impl Default`.
    @leoyvens
    leoyvens committed Nov 3, 2017
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  2. add auto keyword, parse auto trait, lower to HIR 

    Adds an `IsAuto` field to `ItemTrait` which flags if the trait was
declared as an `auto trait`.

Auto traits cannot have generics nor super traits.
    @leoyvens
    leoyvens committed Nov 3, 2017
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  3. Teach typeck about auto trait

    @leoyvens
    leoyvens committed Nov 3, 2017
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  4. Feature gate auto trait and ignore it in rustdoc

    @leoyvens
    leoyvens committed Nov 3, 2017
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  5. Add tests for auto trait, fix parsing bug 

    Now we can do the well formedness checks in the parser, yay!
    @leoyvens
    leoyvens committed Nov 3, 2017
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  6. Finish DefaultImpl -> AutoImpl rename. 

    Forgot this ones.
    @leoyvens
    leoyvens committed Nov 3, 2017
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  7. auto trait future compatibility lint

    @leoyvens
    leoyvens committed Nov 3, 2017
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  8. Fix tests and rebase conflict

    @leoyvens
    leoyvens committed Nov 3, 2017
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  9. Parse auto traits the same as traits. 

    This moves the well formedness checks to the AST validation pass. Tests
were adjusted.

The auto keyword should be back-compat now.
    @leoyvens
    leoyvens committed Nov 3, 2017
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  10. update unstable book and error example

    @leoyvens
    leoyvens committed Nov 3, 2017
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  11. Rename trait_has_auto_impl to trait_is_auto

    @leoyvens
    leoyvens committed Nov 3, 2017
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  12. fix rebase conflict

    @leoyvens
    leoyvens committed Nov 3, 2017
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  13. rustfmt is broken which makes rls broken

    @leoyvens
    leoyvens committed Nov 3, 2017
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  14. Update pretty test for auto trait syntax.

    @leoyvens
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  15. Fix unsafe auto trait pretty print. 

    It was being printed wrong as auto unsafe trait
    @leoyvens
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