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Rollup of 4 pull requests#71853

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bors merged 33 commits intorust-lang:masterrust-lang/rust:masterfrom

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May 3, 2020

Commits

Commits on Apr 26, 2020

• Add `RefCell::take`

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• Use Cell::take in a couple places

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Commits on May 1, 2020

• Don't duplicate macro for optional arg.

  jumbatm

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• Add try_validation_pat.

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• Don't duplicate body of try_validation.

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• Don't fail for UndefinedBehaviourInfo in validation.

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• Throw validation failure for InvalidUndefBytes.

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• Partially unrevert #70566.

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• Update stderrs.

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• Apply suggestions from code review

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• Add FIXME about replacing all usages of try_validation.

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• Match kind in try_validation_pat!.

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• Allow unreachable_patterns instead of using `if true`

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• Fix comment to reflect error handling behaviour.

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• Apply suggestions for try_validation_pat!.

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• Update try_validation_pat! doc comment.

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• Wrap try_validation_pat! args in format_args!

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• Also make expected param wrapped in format_args.

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• Expect at least one expr for p, what_fmt and expected_fmt.

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• Manually format macro to not go over text width.

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• Note that try_validation_pat can take a format str directly.

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Commits on May 2, 2020

• Suggest deref when coercing `ty::Ref` to `ty::RawPtr` with arbitrary

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• Add comments for deref_steps()

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• Suggestion for immutable reference -> mutable pointer should be emitted

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• Replace convenient function `remove_prefix()` with `replace_prefix()`

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• Add long error explanation for E0539

  unexge

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• Add `#![feature(staged_api)]` attribute to E0539 error examples

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• Add stability attribute to E0539 error examples

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Commits on May 3, 2020

• Mention `RefCell::take` can panic in docs

  ThinkChaos

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• Rollup merge of #71398 - ThinkChaos:feat_refcell_take, r=LukasKalbertodt

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  Dylan-DPC

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• Rollup merge of #71663 - jumbatm:caller-handles-validation-error, r=RalfJung

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• Rollup merge of #71726 - ldm0:ref2ptr, r=oli-obk

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• Rollup merge of #71808 - unexge:long-err-expl-for-e0539, r=GuillaumeGomez

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