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Allow methods that require Self:Sized to be object safe (RFC 817) #22301

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merged 3 commits into from
Feb 24, 2015

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nikomatsakis
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RFC 817 is not yet accepted, but I wanted to put this code up so people can see how it works. And to be ready lest it should be accepted.

cc rust-lang/rfcs#817

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r? @huonw

(rust_highfive has picked a reviewer for you, use r? to override)

@sfackler
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Ping?

// future, it would be.) But we know that the true `Self` DOES implement
// the trait. So we just delete this requirement. Hack hack hack.
let mut method_predicates = pick.method_ty.predicates.instantiate(self.tcx(), &all_substs);
match pick.kind {
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It is weird to me that this code can just be plain deleted, was it serving no purpose?

@nikomatsakis
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@huonw that code was serving a purpose when Trait : Trait was not always true. It serves no purpose now.

@nikomatsakis
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@huonw just rebased and added the code about by-value-self, should be ready for r? now

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huonw commented Feb 23, 2015

@bors r+ fd9f

Manishearth added a commit to Manishearth/rust that referenced this pull request Feb 24, 2015
…ods, r=huonw

 RFC 817 is not yet accepted, but I wanted to put this code up so people can see how it works. And to be ready lest it should be accepted.

cc rust-lang/rfcs#817
@bors bors merged commit fd9f7da into rust-lang:master Feb 24, 2015
@nikomatsakis nikomatsakis deleted the object-safe-sized-methods branch March 30, 2016 16:16
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5 participants